feat(workflow): add selection context menu helpers and integrate with context menu component (#34013)

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web/app/components/workflow/nodes/_base/__tests__/node-sections.spec.tsx

@@ -0,0 +1,135 @@
+import type { TFunction } from 'i18next'
+import { render, screen } from '@testing-library/react'
+import userEvent from '@testing-library/user-event'
+import { BlockEnum, NodeRunningStatus } from '@/app/components/workflow/types'
+import { NodeBody, NodeDescription, NodeHeaderMeta } from '../node-sections'
+
+describe('node sections', () => {
+  it('should render loop and loading metadata in the header section', () => {
+    const t = ((key: string) => key) as unknown as TFunction
+
+    render(
+      <NodeHeaderMeta
+        data={{
+          type: BlockEnum.Loop,
+          _loopIndex: 2,
+          _runningStatus: NodeRunningStatus.Running,
+        } as never}
+        hasVarValue={false}
+        isLoading
+        loopIndex={<div>loop-index</div>}
+        t={t}
+      />,
+    )
+
+    expect(screen.getByText('loop-index')).toBeInTheDocument()
+    expect(document.querySelector('.i-ri-loader-2-line')).toBeInTheDocument()
+  })
+
+  it('should render the container node body and description branches', () => {
+    const { rerender } = render(
+      <NodeBody
+        data={{ type: BlockEnum.Loop } as never}
+        child={<div>body-content</div>}
+      />,
+    )
+
+    expect(screen.getByText('body-content').parentElement).toHaveClass('grow')
+
+    rerender(<NodeDescription data={{ type: BlockEnum.Tool, desc: 'node description' } as never} />)
+    expect(screen.getByText('node description')).toBeInTheDocument()
+  })
+
+  it('should render iteration parallel metadata and running progress', async () => {
+    const t = ((key: string) => key) as unknown as TFunction
+    const user = userEvent.setup()
+
+    render(
+      <NodeHeaderMeta
+        data={{
+          type: BlockEnum.Iteration,
+          is_parallel: true,
+          _iterationLength: 3,
+          _iterationIndex: 5,
+          _runningStatus: NodeRunningStatus.Running,
+        } as never}
+        hasVarValue={false}
+        isLoading={false}
+        loopIndex={null}
+        t={t}
+      />,
+    )
+
+    expect(screen.getByText('nodes.iteration.parallelModeUpper')).toBeInTheDocument()
+    await user.hover(screen.getByText('nodes.iteration.parallelModeUpper'))
+    expect(await screen.findByText('nodes.iteration.parallelModeEnableTitle')).toBeInTheDocument()
+    expect(screen.getByText('nodes.iteration.parallelModeEnableDesc')).toBeInTheDocument()
+    expect(screen.getByText('3/3')).toBeInTheDocument()
+  })
+
+  it('should render failed, exception, success and paused status icons', () => {
+    const t = ((key: string) => key) as unknown as TFunction
+    const { rerender } = render(
+      <NodeHeaderMeta
+        data={{ type: BlockEnum.Tool, _runningStatus: NodeRunningStatus.Failed } as never}
+        hasVarValue={false}
+        isLoading={false}
+        loopIndex={null}
+        t={t}
+      />,
+    )
+
+    expect(document.querySelector('.i-ri-error-warning-fill')).toBeInTheDocument()
+
+    rerender(
+      <NodeHeaderMeta
+        data={{ type: BlockEnum.Tool, _runningStatus: NodeRunningStatus.Exception } as never}
+        hasVarValue={false}
+        isLoading={false}
+        loopIndex={null}
+        t={t}
+      />,
+    )
+    expect(document.querySelector('.i-ri-alert-fill')).toBeInTheDocument()
+
+    rerender(
+      <NodeHeaderMeta
+        data={{ type: BlockEnum.Tool, _runningStatus: NodeRunningStatus.Succeeded } as never}
+        hasVarValue={false}
+        isLoading={false}
+        loopIndex={null}
+        t={t}
+      />,
+    )
+    expect(document.querySelector('.i-ri-checkbox-circle-fill')).toBeInTheDocument()
+
+    rerender(
+      <NodeHeaderMeta
+        data={{ type: BlockEnum.Tool, _runningStatus: NodeRunningStatus.Paused } as never}
+        hasVarValue={false}
+        isLoading={false}
+        loopIndex={null}
+        t={t}
+      />,
+    )
+    expect(document.querySelector('.i-ri-pause-circle-fill')).toBeInTheDocument()
+  })
+
+  it('should render success icon when inspect vars exist without running status and hide description for loop nodes', () => {
+    const t = ((key: string) => key) as unknown as TFunction
+    const { rerender } = render(
+      <NodeHeaderMeta
+        data={{ type: BlockEnum.Tool } as never}
+        hasVarValue
+        isLoading={false}
+        loopIndex={null}
+        t={t}
+      />,
+    )
+
+    expect(document.querySelector('.i-ri-checkbox-circle-fill')).toBeInTheDocument()
+
+    rerender(<NodeDescription data={{ type: BlockEnum.Loop, desc: 'hidden' } as never} />)
+    expect(screen.queryByText('hidden')).not.toBeInTheDocument()
+  })
+})

web/app/components/workflow/nodes/_base/__tests__/node.helpers.spec.ts

@@ -0,0 +1,34 @@
+import { BlockEnum, NodeRunningStatus } from '@/app/components/workflow/types'
+import {
+  getLoopIndexTextKey,
+  getNodeStatusBorders,
+  isContainerNode,
+  isEntryWorkflowNode,
+} from '../node.helpers'
+
+describe('node helpers', () => {
+  it('should derive node border states from running status and selection state', () => {
+    expect(getNodeStatusBorders(NodeRunningStatus.Running, false, false).showRunningBorder).toBe(true)
+    expect(getNodeStatusBorders(NodeRunningStatus.Succeeded, false, false).showSuccessBorder).toBe(true)
+    expect(getNodeStatusBorders(NodeRunningStatus.Failed, false, false).showFailedBorder).toBe(true)
+    expect(getNodeStatusBorders(NodeRunningStatus.Exception, false, false).showExceptionBorder).toBe(true)
+    expect(getNodeStatusBorders(NodeRunningStatus.Succeeded, false, true).showSuccessBorder).toBe(false)
+  })
+
+  it('should expose the correct loop translation key per running status', () => {
+    expect(getLoopIndexTextKey(NodeRunningStatus.Running)).toBe('nodes.loop.currentLoopCount')
+    expect(getLoopIndexTextKey(NodeRunningStatus.Succeeded)).toBe('nodes.loop.totalLoopCount')
+    expect(getLoopIndexTextKey(NodeRunningStatus.Failed)).toBe('nodes.loop.totalLoopCount')
+    expect(getLoopIndexTextKey(NodeRunningStatus.Paused)).toBeUndefined()
+  })
+
+  it('should identify entry and container nodes', () => {
+    expect(isEntryWorkflowNode(BlockEnum.Start)).toBe(true)
+    expect(isEntryWorkflowNode(BlockEnum.TriggerWebhook)).toBe(true)
+    expect(isEntryWorkflowNode(BlockEnum.Tool)).toBe(false)
+
+    expect(isContainerNode(BlockEnum.Iteration)).toBe(true)
+    expect(isContainerNode(BlockEnum.Loop)).toBe(true)
+    expect(isContainerNode(BlockEnum.Tool)).toBe(false)
+  })
+})

web/app/components/workflow/nodes/_base/__tests__/node.spec.tsx

@@ -0,0 +1,218 @@
+import type { PropsWithChildren } from 'react'
+import type { CommonNodeType } from '@/app/components/workflow/types'
+import { fireEvent, screen } from '@testing-library/react'
+import { renderWorkflowComponent } from '@/app/components/workflow/__tests__/workflow-test-env'
+import { BlockEnum, NodeRunningStatus } from '@/app/components/workflow/types'
+import BaseNode from '../node'
+
+const mockHasNodeInspectVars = vi.fn()
+const mockUseNodePluginInstallation = vi.fn()
+const mockHandleNodeIterationChildSizeChange = vi.fn()
+const mockHandleNodeLoopChildSizeChange = vi.fn()
+const mockUseNodeResizeObserver = vi.fn()
+
+vi.mock('@/app/components/workflow/hooks', () => ({
+  useNodesReadOnly: () => ({ nodesReadOnly: false }),
+  useToolIcon: () => undefined,
+}))
+
+vi.mock('@/app/components/workflow/hooks/use-inspect-vars-crud', () => ({
+  default: () => ({
+    hasNodeInspectVars: mockHasNodeInspectVars,
+  }),
+}))
+
+vi.mock('@/app/components/workflow/hooks/use-node-plugin-installation', () => ({
+  useNodePluginInstallation: (...args: unknown[]) => mockUseNodePluginInstallation(...args),
+}))
+
+vi.mock('@/app/components/workflow/nodes/iteration/use-interactions', () => ({
+  useNodeIterationInteractions: () => ({
+    handleNodeIterationChildSizeChange: mockHandleNodeIterationChildSizeChange,
+  }),
+}))
+
+vi.mock('@/app/components/workflow/nodes/loop/use-interactions', () => ({
+  useNodeLoopInteractions: () => ({
+    handleNodeLoopChildSizeChange: mockHandleNodeLoopChildSizeChange,
+  }),
+}))
+
+vi.mock('../use-node-resize-observer', () => ({
+  default: (options: { enabled: boolean, onResize: () => void }) => {
+    mockUseNodeResizeObserver(options)
+    if (options.enabled)
+      options.onResize()
+  },
+}))
+
+vi.mock('../components/add-variable-popup-with-position', () => ({
+  default: () => <div data-testid="add-var-popup" />,
+}))
+vi.mock('../components/entry-node-container', () => ({
+  __esModule: true,
+  StartNodeTypeEnum: { Start: 'start', Trigger: 'trigger' },
+  default: ({ children }: PropsWithChildren) => <div data-testid="entry-node-container">{children}</div>,
+}))
+vi.mock('../components/error-handle/error-handle-on-node', () => ({
+  default: () => <div data-testid="error-handle-node" />,
+}))
+vi.mock('../components/node-control', () => ({
+  default: () => <div data-testid="node-control" />,
+}))
+vi.mock('../components/node-handle', () => ({
+  NodeSourceHandle: () => <div data-testid="node-source-handle" />,
+  NodeTargetHandle: () => <div data-testid="node-target-handle" />,
+}))
+vi.mock('../components/node-resizer', () => ({
+  default: () => <div data-testid="node-resizer" />,
+}))
+vi.mock('../components/retry/retry-on-node', () => ({
+  default: () => <div data-testid="retry-node" />,
+}))
+vi.mock('@/app/components/workflow/block-icon', () => ({
+  default: () => <div data-testid="block-icon" />,
+}))
+vi.mock('@/app/components/workflow/nodes/tool/components/copy-id', () => ({
+  default: ({ content }: { content: string }) => <div>{content}</div>,
+}))
+
+const createData = (overrides: Record<string, unknown> = {}) => ({
+  type: BlockEnum.Tool,
+  title: 'Node title',
+  desc: 'Node description',
+  selected: false,
+  width: 280,
+  height: 180,
+  provider_type: 'builtin',
+  provider_id: 'tool-1',
+  _runningStatus: undefined,
+  _singleRunningStatus: undefined,
+  ...overrides,
+})
+
+const toNodeData = (data: ReturnType<typeof createData>) => data as CommonNodeType
+
+describe('BaseNode', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockHasNodeInspectVars.mockReturnValue(false)
+    mockUseNodeResizeObserver.mockReset()
+    mockUseNodePluginInstallation.mockReturnValue({
+      shouldDim: false,
+      isChecking: false,
+      isMissing: false,
+      canInstall: false,
+      uniqueIdentifier: undefined,
+    })
+  })
+
+  it('should render content, handles and description for a regular node', () => {
+    renderWorkflowComponent(
+      <BaseNode id="node-1" data={toNodeData(createData())}>
+        <div>Body</div>
+      </BaseNode>,
+    )
+
+    expect(screen.getByText('Node title')).toBeInTheDocument()
+    expect(screen.getByText('Node description')).toBeInTheDocument()
+    expect(screen.getByTestId('node-control')).toBeInTheDocument()
+    expect(screen.getByTestId('node-source-handle')).toBeInTheDocument()
+    expect(screen.getByTestId('node-target-handle')).toBeInTheDocument()
+  })
+
+  it('should render entry nodes inside the entry container', () => {
+    renderWorkflowComponent(
+      <BaseNode id="node-1" data={toNodeData(createData({ type: BlockEnum.Start }))}>
+        <div>Body</div>
+      </BaseNode>,
+    )
+
+    expect(screen.getByTestId('entry-node-container')).toBeInTheDocument()
+  })
+
+  it('should block interaction when plugin installation is required', () => {
+    mockUseNodePluginInstallation.mockReturnValue({
+      shouldDim: false,
+      isChecking: false,
+      isMissing: true,
+      canInstall: true,
+      uniqueIdentifier: 'plugin-1',
+    })
+
+    renderWorkflowComponent(
+      <BaseNode id="node-1" data={toNodeData(createData())}>
+        <div>Body</div>
+      </BaseNode>,
+    )
+
+    const overlay = screen.getByTestId('workflow-node-install-overlay')
+    expect(overlay).toBeInTheDocument()
+    fireEvent.click(overlay)
+  })
+
+  it('should render running status indicators for loop nodes', () => {
+    renderWorkflowComponent(
+      <BaseNode
+        id="node-1"
+        data={toNodeData(createData({
+          type: BlockEnum.Loop,
+          _loopIndex: 3,
+          _runningStatus: NodeRunningStatus.Running,
+          width: 320,
+          height: 220,
+        }))}
+      >
+        <div>Loop body</div>
+      </BaseNode>,
+    )
+
+    expect(screen.getByText(/workflow\.nodes\.loop\.currentLoopCount/)).toBeInTheDocument()
+    expect(screen.getByTestId('node-resizer')).toBeInTheDocument()
+  })
+
+  it('should render an iteration node resizer and dimmed overlay', () => {
+    mockUseNodePluginInstallation.mockReturnValue({
+      shouldDim: true,
+      isChecking: false,
+      isMissing: false,
+      canInstall: false,
+      uniqueIdentifier: undefined,
+    })
+
+    renderWorkflowComponent(
+      <BaseNode
+        id="node-1"
+        data={toNodeData(createData({
+          type: BlockEnum.Iteration,
+          selected: true,
+          isInIteration: true,
+        }))}
+      >
+        <div>Iteration body</div>
+      </BaseNode>,
+    )
+
+    expect(screen.getByTestId('node-resizer')).toBeInTheDocument()
+    expect(screen.getByTestId('workflow-node-install-overlay')).toBeInTheDocument()
+    expect(mockHandleNodeIterationChildSizeChange).toHaveBeenCalledWith('node-1')
+  })
+
+  it('should trigger loop resize updates when the selected node is inside a loop', () => {
+    renderWorkflowComponent(
+      <BaseNode
+        id="node-2"
+        data={toNodeData(createData({
+          type: BlockEnum.Loop,
+          selected: true,
+          isInLoop: true,
+        }))}
+      >
+        <div>Loop body</div>
+      </BaseNode>,
+    )
+
+    expect(mockHandleNodeLoopChildSizeChange).toHaveBeenCalledWith('node-2')
+    expect(mockUseNodeResizeObserver).toHaveBeenCalledTimes(2)
+  })
+})

web/app/components/workflow/nodes/_base/__tests__/use-node-resize-observer.spec.tsx

@@ -0,0 +1,55 @@
+import { renderHook } from '@testing-library/react'
+import useNodeResizeObserver from '../use-node-resize-observer'
+
+describe('useNodeResizeObserver', () => {
+  it('should observe and disconnect when enabled with a mounted node ref', () => {
+    const observe = vi.fn()
+    const disconnect = vi.fn()
+    const onResize = vi.fn()
+    let resizeCallback: (() => void) | undefined
+
+    vi.stubGlobal('ResizeObserver', class {
+      constructor(callback: () => void) {
+        resizeCallback = callback
+      }
+
+      observe = observe
+      disconnect = disconnect
+      unobserve = vi.fn()
+    })
+
+    const node = document.createElement('div')
+    const nodeRef = { current: node }
+
+    const { unmount } = renderHook(() => useNodeResizeObserver({
+      enabled: true,
+      nodeRef,
+      onResize,
+    }))
+
+    expect(observe).toHaveBeenCalledWith(node)
+    resizeCallback?.()
+    expect(onResize).toHaveBeenCalledTimes(1)
+
+    unmount()
+    expect(disconnect).toHaveBeenCalledTimes(1)
+  })
+
+  it('should do nothing when disabled', () => {
+    const observe = vi.fn()
+
+    vi.stubGlobal('ResizeObserver', class {
+      observe = observe
+      disconnect = vi.fn()
+      unobserve = vi.fn()
+    })
+
+    renderHook(() => useNodeResizeObserver({
+      enabled: false,
+      nodeRef: { current: document.createElement('div') },
+      onResize: vi.fn(),
+    }))
+
+    expect(observe).not.toHaveBeenCalled()
+  })
+})

web/app/components/workflow/nodes/_base/components/__tests__/form-input-item.branches.spec.tsx

@@ -0,0 +1,410 @@
+import type { ComponentProps } from 'react'
+import type { CredentialFormSchema, FormOption } from '@/app/components/header/account-setting/model-provider-page/declarations'
+import { fireEvent, screen, waitFor } from '@testing-library/react'
+import { FormTypeEnum } from '@/app/components/header/account-setting/model-provider-page/declarations'
+import { PluginCategoryEnum } from '@/app/components/plugins/types'
+import { renderWorkflowFlowComponent } from '@/app/components/workflow/__tests__/workflow-test-env'
+import { VarKindType } from '../../types'
+import FormInputItem from '../form-input-item'
+
+const {
+  mockFetchDynamicOptions,
+  mockTriggerDynamicOptionsState,
+} = vi.hoisted(() => ({
+  mockFetchDynamicOptions: vi.fn(),
+  mockTriggerDynamicOptionsState: {
+    data: undefined as { options: FormOption[] } | undefined,
+    isLoading: false,
+  },
+}))
+
+vi.mock('@/app/components/header/account-setting/model-provider-page/hooks', () => ({
+  useLanguage: () => 'en_US',
+}))
+
+vi.mock('@/service/use-plugins', () => ({
+  useFetchDynamicOptions: () => ({
+    mutateAsync: mockFetchDynamicOptions,
+  }),
+}))
+
+vi.mock('@/service/use-triggers', () => ({
+  useTriggerPluginDynamicOptions: () => mockTriggerDynamicOptionsState,
+}))
+
+vi.mock('@/app/components/plugins/plugin-detail-panel/app-selector', () => ({
+  default: ({ onSelect }: { onSelect: (value: string) => void }) => (
+    <button onClick={() => onSelect('app-1')}>app-selector</button>
+  ),
+}))
+
+vi.mock('@/app/components/plugins/plugin-detail-panel/model-selector', () => ({
+  default: ({ setModel }: { setModel: (value: string) => void }) => (
+    <button onClick={() => setModel('model-1')}>model-selector</button>
+  ),
+}))
+
+vi.mock('@/app/components/workflow/nodes/tool/components/mixed-variable-text-input', () => ({
+  default: ({ onChange, value }: { onChange: (value: string) => void, value: string }) => (
+    <input aria-label="mixed-variable-input" value={value} onChange={e => onChange(e.target.value)} />
+  ),
+}))
+
+vi.mock('@/app/components/workflow/nodes/_base/components/editor/code-editor', () => ({
+  default: ({ onChange, value }: { onChange: (value: string) => void, value: string }) => (
+    <textarea aria-label="json-editor" value={value} onChange={e => onChange(e.target.value)} />
+  ),
+}))
+
+vi.mock('@/app/components/workflow/nodes/_base/components/variable/var-reference-picker', () => ({
+  default: ({ onChange }: { onChange: (value: string[]) => void }) => (
+    <button onClick={() => onChange(['node-2', 'asset'])}>variable-picker</button>
+  ),
+}))
+
+const createSchema = (
+  overrides: Partial<CredentialFormSchema & {
+    _type?: FormTypeEnum
+    multiple?: boolean
+    options?: FormOption[]
+  }> = {},
+) => ({
+  label: { en_US: 'Field', zh_Hans: '字段' },
+  name: 'field',
+  required: false,
+  show_on: [],
+  type: FormTypeEnum.textInput,
+  variable: 'field',
+  ...overrides,
+}) as CredentialFormSchema & {
+  _type?: FormTypeEnum
+  multiple?: boolean
+  options?: FormOption[]
+}
+
+const createOption = (
+  value: string,
+  overrides: Partial<FormOption> = {},
+): FormOption => ({
+  label: { en_US: value, zh_Hans: value },
+  show_on: [],
+  value,
+  ...overrides,
+})
+
+const renderFormInputItem = (props: Partial<ComponentProps<typeof FormInputItem>> = {}) => {
+  const onChange = vi.fn()
+  const result = renderWorkflowFlowComponent(
+    <FormInputItem
+      readOnly={false}
+      nodeId="node-1"
+      schema={createSchema()}
+      value={{
+        field: {
+          type: VarKindType.constant,
+          value: '',
+        },
+      }}
+      onChange={onChange}
+      {...props}
+    />,
+    {
+      edges: [],
+      hooksStoreProps: {},
+      nodes: [],
+    },
+  )
+
+  return { ...result, onChange }
+}
+
+describe('FormInputItem branches', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockFetchDynamicOptions.mockResolvedValue({ options: [] })
+    mockTriggerDynamicOptionsState.data = undefined
+    mockTriggerDynamicOptionsState.isLoading = false
+  })
+
+  it('should update mixed string inputs via the shared text input', () => {
+    const { onChange } = renderFormInputItem()
+
+    fireEvent.change(screen.getByLabelText('mixed-variable-input'), { target: { value: 'hello world' } })
+
+    expect(onChange).toHaveBeenCalledWith({
+      field: {
+        type: VarKindType.mixed,
+        value: 'hello world',
+      },
+    })
+  })
+
+  it('should switch from variable mode back to constant mode with the schema default value', () => {
+    const { container, onChange } = renderFormInputItem({
+      schema: createSchema({
+        default: 7 as never,
+        type: FormTypeEnum.textNumber,
+      }),
+      value: {
+        field: {
+          type: VarKindType.variable,
+          value: ['node-1', 'count'],
+        },
+      },
+    })
+
+    const switchRoot = container.querySelector('.inline-flex.h-8.shrink-0.gap-px')
+    const clickableItems = switchRoot?.querySelectorAll('.cursor-pointer') ?? []
+    fireEvent.click(clickableItems[1] as HTMLElement)
+
+    expect(onChange).toHaveBeenCalledWith({
+      field: {
+        type: VarKindType.constant,
+        value: 7,
+      },
+    })
+  })
+
+  it('should render static select options with icons and update the selected item', () => {
+    const { onChange } = renderFormInputItem({
+      schema: createSchema({
+        type: FormTypeEnum.select,
+        options: [
+          createOption('basic', { icon: '/basic.svg' }),
+          createOption('pro'),
+        ],
+      }),
+      value: {
+        field: {
+          type: VarKindType.constant,
+          value: '',
+        },
+      },
+    })
+
+    fireEvent.click(screen.getByRole('button'))
+    expect(document.querySelector('img[src="/basic.svg"]')).toBeInTheDocument()
+    fireEvent.click(screen.getByText('basic'))
+
+    expect(onChange).toHaveBeenCalledWith({
+      field: {
+        type: VarKindType.constant,
+        value: 'basic',
+      },
+    })
+  })
+
+  it('should render static multi-select values and update selected labels', () => {
+    const { onChange } = renderFormInputItem({
+      schema: createSchema({
+        multiple: true,
+        type: FormTypeEnum.select,
+        options: [
+          createOption('alpha'),
+          createOption('beta'),
+        ],
+      }),
+      value: {
+        field: {
+          type: VarKindType.constant,
+          value: ['alpha'],
+        },
+      },
+    })
+
+    expect(screen.getByText('alpha')).toBeInTheDocument()
+    fireEvent.click(screen.getByRole('button'))
+    fireEvent.click(screen.getByText('beta'))
+
+    expect(onChange).toHaveBeenCalledWith({
+      field: {
+        type: VarKindType.constant,
+        value: ['alpha', 'beta'],
+      },
+    })
+  })
+
+  it('should fetch tool dynamic options, render them, and update the value', async () => {
+    mockFetchDynamicOptions.mockResolvedValueOnce({
+      options: [
+        createOption('remote', { icon: '/remote.svg' }),
+      ],
+    })
+    const { onChange } = renderFormInputItem({
+      schema: createSchema({
+        type: FormTypeEnum.dynamicSelect,
+      }),
+      currentProvider: { plugin_id: 'provider-1', name: 'provider-1' } as never,
+      currentTool: { name: 'tool-1' } as never,
+      providerType: PluginCategoryEnum.tool,
+      value: {
+        field: {
+          type: VarKindType.constant,
+          value: '',
+        },
+      },
+    })
+
+    await waitFor(() => {
+      expect(mockFetchDynamicOptions).toHaveBeenCalledTimes(1)
+    })
+
+    fireEvent.click(screen.getByRole('button'))
+    expect(document.querySelector('img[src="/remote.svg"]')).toBeInTheDocument()
+    fireEvent.click(screen.getByText('remote'))
+
+    expect(onChange).toHaveBeenCalledWith({
+      field: {
+        type: VarKindType.constant,
+        value: 'remote',
+      },
+    })
+  })
+
+  it('should recover when fetching dynamic tool options fails', async () => {
+    const consoleSpy = vi.spyOn(console, 'error').mockImplementation(() => {})
+    mockFetchDynamicOptions.mockRejectedValueOnce(new Error('network'))
+
+    renderFormInputItem({
+      schema: createSchema({
+        type: FormTypeEnum.dynamicSelect,
+      }),
+      currentProvider: { plugin_id: 'provider-1', name: 'provider-1' } as never,
+      currentTool: { name: 'tool-1' } as never,
+      providerType: PluginCategoryEnum.tool,
+    })
+
+    await waitFor(() => {
+      expect(consoleSpy).toHaveBeenCalled()
+    })
+
+    consoleSpy.mockRestore()
+  })
+
+  it('should use trigger dynamic options for multi-select values', async () => {
+    mockTriggerDynamicOptionsState.data = {
+      options: [
+        createOption('trigger-option'),
+      ],
+    }
+
+    const { onChange } = renderFormInputItem({
+      schema: createSchema({
+        multiple: true,
+        type: FormTypeEnum.dynamicSelect,
+      }),
+      currentProvider: { plugin_id: 'provider-2', name: 'provider-2', credential_id: 'credential-1' } as never,
+      currentTool: { name: 'trigger-tool' } as never,
+      providerType: PluginCategoryEnum.trigger,
+      value: {
+        field: {
+          type: VarKindType.constant,
+          value: [],
+        },
+      },
+    })
+
+    await waitFor(() => {
+      expect(screen.getByRole('button')).not.toBeDisabled()
+    })
+    fireEvent.click(screen.getByRole('button'))
+    fireEvent.click(screen.getByText('trigger-option'))
+
+    expect(onChange).toHaveBeenCalledWith({
+      field: {
+        type: VarKindType.constant,
+        value: ['trigger-option'],
+      },
+    })
+  })
+
+  it('should delegate app and model selection to their dedicated controls', () => {
+    const app = renderFormInputItem({
+      schema: createSchema({ type: FormTypeEnum.appSelector }),
+    })
+    fireEvent.click(screen.getByText('app-selector'))
+    expect(app.onChange).toHaveBeenCalledWith({
+      field: {
+        type: VarKindType.constant,
+        value: 'app-1',
+      },
+    })
+
+    app.unmount()
+
+    const model = renderFormInputItem({
+      schema: createSchema({ type: FormTypeEnum.modelSelector }),
+    })
+    fireEvent.click(screen.getByText('model-selector'))
+    expect(model.onChange).toHaveBeenCalledWith({
+      field: {
+        type: VarKindType.constant,
+        value: 'model-1',
+      },
+    })
+  })
+
+  it('should render the JSON editor and variable picker specialized branches', () => {
+    const json = renderFormInputItem({
+      schema: createSchema({ type: FormTypeEnum.object }),
+      value: {
+        field: {
+          type: VarKindType.constant,
+          value: '{"enabled":false}',
+        },
+      },
+    })
+
+    fireEvent.change(screen.getByLabelText('json-editor'), { target: { value: '{"enabled":true}' } })
+    expect(json.onChange).toHaveBeenCalledWith({
+      field: {
+        type: VarKindType.constant,
+        value: '{"enabled":true}',
+      },
+    })
+
+    json.unmount()
+
+    const picker = renderFormInputItem({
+      schema: createSchema({ type: FormTypeEnum.file }),
+      value: {
+        field: {
+          type: VarKindType.constant,
+          value: '',
+        },
+      },
+    })
+
+    fireEvent.click(screen.getByText('variable-picker'))
+    expect(picker.onChange).toHaveBeenCalledWith({
+      field: {
+        type: VarKindType.variable,
+        value: ['node-2', 'asset'],
+      },
+    })
+  })
+
+  it('should render variable selectors for boolean variable inputs', () => {
+    const { onChange } = renderFormInputItem({
+      schema: createSchema({
+        _type: FormTypeEnum.boolean,
+        type: FormTypeEnum.textInput,
+      }),
+      value: {
+        field: {
+          type: VarKindType.variable,
+          value: ['node-3', 'flag'],
+        },
+      },
+    })
+
+    fireEvent.click(screen.getByText('variable-picker'))
+
+    expect(onChange).toHaveBeenCalledWith({
+      field: {
+        type: VarKindType.variable,
+        value: ['node-2', 'asset'],
+      },
+    })
+  })
+})

web/app/components/workflow/nodes/_base/components/__tests__/form-input-item.helpers.spec.ts

@@ -0,0 +1,166 @@
+import type { CredentialFormSchema, FormOption } from '@/app/components/header/account-setting/model-provider-page/declarations'
+import type { Var } from '@/app/components/workflow/types'
+import { FormTypeEnum } from '@/app/components/header/account-setting/model-provider-page/declarations'
+import { VarType } from '@/app/components/workflow/types'
+import { VarKindType } from '../../types'
+import {
+  filterVisibleOptions,
+  getCheckboxListOptions,
+  getCheckboxListValue,
+  getFilterVar,
+  getFormInputState,
+  getNumberInputValue,
+  getSelectedLabels,
+  getTargetVarType,
+  getVarKindType,
+  hasOptionIcon,
+  mapSelectItems,
+  normalizeVariableSelectorValue,
+} from '../form-input-item.helpers'
+
+const createSchema = (
+  overrides: Partial<CredentialFormSchema & {
+    _type?: FormTypeEnum
+    multiple?: boolean
+    options?: FormOption[]
+  }> = {},
+) => ({
+  label: { en_US: 'Field', zh_Hans: '字段' },
+  name: 'field',
+  required: false,
+  show_on: [],
+  type: FormTypeEnum.textInput,
+  variable: 'field',
+  ...overrides,
+}) as CredentialFormSchema & {
+  _type?: FormTypeEnum
+  multiple?: boolean
+  options?: FormOption[]
+}
+
+const createOption = (
+  value: string,
+  overrides: Partial<FormOption> = {},
+): FormOption => ({
+  label: { en_US: value, zh_Hans: value },
+  show_on: [],
+  value,
+  ...overrides,
+})
+
+describe('form-input-item helpers', () => {
+  it('should derive field state and target var type', () => {
+    const numberState = getFormInputState(
+      createSchema({ type: FormTypeEnum.textNumber }),
+      { type: VarKindType.constant, value: 1 },
+    )
+    const filesState = getFormInputState(
+      createSchema({ type: FormTypeEnum.files }),
+      { type: VarKindType.variable, value: ['node', 'files'] },
+    )
+
+    expect(numberState.isNumber).toBe(true)
+    expect(numberState.showTypeSwitch).toBe(true)
+    expect(getTargetVarType(numberState)).toBe(VarType.number)
+    expect(filesState.isFile).toBe(true)
+    expect(filesState.showVariableSelector).toBe(true)
+    expect(getTargetVarType(filesState)).toBe(VarType.arrayFile)
+  })
+
+  it('should return filter functions and var kind types by schema mode', () => {
+    const stringFilter = getFilterVar(getFormInputState(createSchema(), { type: VarKindType.mixed, value: '' }))
+    const booleanState = getFormInputState(
+      createSchema({ _type: FormTypeEnum.boolean, type: FormTypeEnum.textInput }),
+      { type: VarKindType.constant, value: true },
+    )
+
+    expect(stringFilter?.({ type: VarType.secret } as Var)).toBe(true)
+    expect(stringFilter?.({ type: VarType.file } as Var)).toBe(false)
+    expect(getVarKindType(booleanState)).toBe(VarKindType.constant)
+    expect(getFilterVar(booleanState)?.({ type: VarType.boolean } as Var)).toBe(false)
+
+    const fileState = getFormInputState(
+      createSchema({ type: FormTypeEnum.file }),
+      { type: VarKindType.variable, value: ['node', 'file'] },
+    )
+    const objectState = getFormInputState(
+      createSchema({ type: FormTypeEnum.object }),
+      { type: VarKindType.constant, value: '{}' },
+    )
+    const arrayState = getFormInputState(
+      createSchema({ type: FormTypeEnum.array }),
+      { type: VarKindType.constant, value: '[]' },
+    )
+    const dynamicState = getFormInputState(
+      createSchema({ type: FormTypeEnum.dynamicSelect }),
+      { type: VarKindType.constant, value: 'selected' },
+    )
+
+    expect(getFilterVar(fileState)?.({ type: VarType.file } as Var)).toBe(true)
+    expect(getFilterVar(objectState)?.({ type: VarType.object } as Var)).toBe(true)
+    expect(getFilterVar(arrayState)?.({ type: VarType.arrayString } as Var)).toBe(true)
+    expect(getVarKindType(fileState)).toBe(VarKindType.variable)
+    expect(getVarKindType(dynamicState)).toBe(VarKindType.constant)
+    expect(getVarKindType(getFormInputState(createSchema({ type: FormTypeEnum.appSelector }), undefined))).toBeUndefined()
+  })
+
+  it('should filter and map visible options using show_on rules', () => {
+    const options = [
+      createOption('always'),
+      createOption('premium', {
+        show_on: [{ variable: 'mode', value: 'pro' }],
+      }),
+    ]
+    const values = {
+      mode: {
+        type: VarKindType.constant,
+        value: 'pro',
+      },
+    }
+
+    const visibleOptions = filterVisibleOptions(options, values)
+    expect(visibleOptions).toHaveLength(2)
+    expect(mapSelectItems(visibleOptions, 'en_US')).toEqual([
+      { name: 'always', value: 'always' },
+      { name: 'premium', value: 'premium' },
+    ])
+    expect(hasOptionIcon(visibleOptions)).toBe(false)
+  })
+
+  it('should compute selected labels and checkbox state from visible options', () => {
+    const options = [
+      createOption('alpha'),
+      createOption('beta'),
+      createOption('gamma'),
+    ]
+
+    expect(getSelectedLabels(['alpha', 'beta'], options, 'en_US')).toBe('alpha, beta')
+    expect(getSelectedLabels(['alpha', 'beta', 'gamma'], options, 'en_US')).toBe('3 selected')
+    expect(getCheckboxListOptions(options, 'en_US')).toEqual([
+      { label: 'alpha', value: 'alpha' },
+      { label: 'beta', value: 'beta' },
+      { label: 'gamma', value: 'gamma' },
+    ])
+    expect(getCheckboxListValue(['alpha', 'missing'], ['beta'], options)).toEqual(['alpha'])
+  })
+
+  it('should normalize number and variable selector values', () => {
+    expect(getNumberInputValue(Number.NaN)).toBe('')
+    expect(getNumberInputValue(2)).toBe(2)
+    expect(getNumberInputValue('3')).toBe('3')
+    expect(getNumberInputValue(undefined)).toBe('')
+    expect(normalizeVariableSelectorValue([])).toEqual([])
+    expect(normalizeVariableSelectorValue(['node', 'answer'])).toEqual(['node', 'answer'])
+    expect(normalizeVariableSelectorValue('')).toBe('')
+  })
+
+  it('should derive remaining target variable types and label states', () => {
+    const objectState = getFormInputState(createSchema({ type: FormTypeEnum.object }), undefined)
+    const arrayState = getFormInputState(createSchema({ type: FormTypeEnum.array }), undefined)
+
+    expect(getTargetVarType(objectState)).toBe(VarType.object)
+    expect(getTargetVarType(arrayState)).toBe(VarType.arrayObject)
+    expect(getSelectedLabels(undefined, [], 'en_US')).toBe('')
+    expect(getCheckboxListValue('alpha', [], [createOption('alpha')])).toEqual(['alpha'])
+  })
+})

web/app/components/workflow/nodes/_base/components/__tests__/form-input-item.sections.spec.tsx

@@ -0,0 +1,60 @@
+import { fireEvent, screen } from '@testing-library/react'
+import { renderWorkflowComponent } from '@/app/components/workflow/__tests__/workflow-test-env'
+import {
+  JsonEditorField,
+  MultiSelectField,
+} from '../form-input-item.sections'
+
+describe('form-input-item sections', () => {
+  it('should render a loading multi-select label', () => {
+    renderWorkflowComponent(
+      <MultiSelectField
+        disabled={false}
+        isLoading
+        items={[{ name: 'Alpha', value: 'alpha' }]}
+        onChange={vi.fn()}
+        selectedLabel=""
+        value={[]}
+      />,
+    )
+
+    expect(screen.getByText('Loading...')).toBeInTheDocument()
+  })
+
+  it('should render the shared json editor section', () => {
+    renderWorkflowComponent(
+      <JsonEditorField
+        value={'{"enabled":true}'}
+        onChange={vi.fn()}
+        placeholder={<div>JSON placeholder</div>}
+      />,
+    )
+
+    expect(screen.getByText('JSON')).toBeInTheDocument()
+  })
+
+  it('should render placeholder, icons, and select multi-select options', () => {
+    const onChange = vi.fn()
+
+    renderWorkflowComponent(
+      <MultiSelectField
+        disabled={false}
+        items={[
+          { name: 'Alpha', value: 'alpha', icon: '/alpha.svg' },
+          { name: 'Beta', value: 'beta' },
+        ]}
+        onChange={onChange}
+        placeholder="Choose options"
+        selectedLabel=""
+        value={[]}
+      />,
+    )
+
+    expect(screen.getByText('Choose options')).toBeInTheDocument()
+    fireEvent.click(screen.getByRole('button'))
+    fireEvent.click(screen.getByText('Alpha'))
+
+    expect(document.querySelector('img[src="/alpha.svg"]')).toBeInTheDocument()
+    expect(onChange).toHaveBeenCalled()
+  })
+})

web/app/components/workflow/nodes/_base/components/__tests__/form-input-item.spec.tsx

@@ -0,0 +1,148 @@
+import type { ComponentProps } from 'react'
+import type { CredentialFormSchema, FormOption } from '@/app/components/header/account-setting/model-provider-page/declarations'
+import { fireEvent, screen } from '@testing-library/react'
+import { FormTypeEnum } from '@/app/components/header/account-setting/model-provider-page/declarations'
+import { renderWorkflowFlowComponent } from '@/app/components/workflow/__tests__/workflow-test-env'
+import { VarKindType } from '../../types'
+import FormInputItem from '../form-input-item'
+
+const createSchema = (
+  overrides: Partial<CredentialFormSchema & {
+    _type?: FormTypeEnum
+    multiple?: boolean
+    options?: FormOption[]
+  }> = {},
+) => ({
+  label: { en_US: 'Field', zh_Hans: '字段' },
+  name: 'field',
+  required: false,
+  show_on: [],
+  type: FormTypeEnum.textInput,
+  variable: 'field',
+  ...overrides,
+}) as CredentialFormSchema & {
+  _type?: FormTypeEnum
+  multiple?: boolean
+  options?: FormOption[]
+}
+
+const createOption = (
+  value: string,
+  overrides: Partial<FormOption> = {},
+): FormOption => ({
+  label: { en_US: value, zh_Hans: value },
+  show_on: [],
+  value,
+  ...overrides,
+})
+
+const renderFormInputItem = (props: Partial<ComponentProps<typeof FormInputItem>> = {}) => {
+  const onChange = vi.fn()
+  renderWorkflowFlowComponent(
+    <FormInputItem
+      readOnly={false}
+      nodeId="node-1"
+      schema={createSchema()}
+      value={{
+        field: {
+          type: VarKindType.constant,
+          value: '',
+        },
+      }}
+      onChange={onChange}
+      {...props}
+    />,
+    {
+      edges: [],
+      hooksStoreProps: {},
+      nodes: [],
+    },
+  )
+
+  return { onChange }
+}
+
+describe('FormInputItem', () => {
+  it('should parse number inputs as numbers', () => {
+    const { onChange } = renderFormInputItem({
+      schema: createSchema({ type: FormTypeEnum.textNumber }),
+      value: {
+        field: {
+          type: VarKindType.constant,
+          value: 1,
+        },
+      },
+    })
+
+    fireEvent.change(screen.getByRole('spinbutton'), { target: { value: '3.5' } })
+
+    expect(onChange).toHaveBeenCalledWith({
+      field: {
+        type: VarKindType.constant,
+        value: 3.5,
+      },
+    })
+  })
+
+  it('should toggle boolean fields using the shared boolean input', () => {
+    const { onChange } = renderFormInputItem({
+      schema: createSchema({
+        _type: FormTypeEnum.boolean,
+        type: FormTypeEnum.textInput,
+      }),
+      value: {
+        field: {
+          type: VarKindType.constant,
+          value: true,
+        },
+      },
+    })
+
+    fireEvent.click(screen.getByText('False'))
+
+    expect(onChange).toHaveBeenCalledWith({
+      field: {
+        type: VarKindType.constant,
+        value: false,
+      },
+    })
+  })
+
+  it('should filter checkbox options by show_on and update selected values', () => {
+    const { onChange } = renderFormInputItem({
+      schema: createSchema({
+        _type: FormTypeEnum.checkbox,
+        options: [
+          createOption('basic'),
+          createOption('pro', {
+            show_on: [{ variable: 'mode', value: 'pro' }],
+          }),
+        ],
+        type: FormTypeEnum.textInput,
+      }),
+      value: {
+        field: {
+          type: VarKindType.constant,
+          value: ['basic'],
+        },
+        mode: {
+          type: VarKindType.constant,
+          value: 'pro',
+        },
+      },
+    })
+
+    fireEvent.click(screen.getByText('pro'))
+
+    expect(onChange).toHaveBeenCalledWith({
+      field: {
+        type: VarKindType.constant,
+        value: ['basic', 'pro'],
+      },
+      mode: {
+        type: VarKindType.constant,
+        value: 'pro',
+      },
+    })
+  })
+})

web/app/components/workflow/nodes/_base/components/before-run-form/__tests__/helpers.spec.ts

@@ -0,0 +1,115 @@
+import type { InputVar } from '@/app/components/workflow/types'
+import { BlockEnum, InputVarType } from '@/app/components/workflow/types'
+import { TransferMethod } from '@/types/app'
+import {
+  buildSubmitData,
+  formatValue,
+  getFormErrorMessage,
+  isFilesLoaded,
+  shouldAutoRunBeforeRunForm,
+  shouldAutoShowGeneratedForm,
+} from '../helpers'
+
+type FormArg = Parameters<typeof buildSubmitData>[0][number]
+
+describe('before-run-form helpers', () => {
+  const createValues = (values: Record<string, unknown>) => values as unknown as Record<string, string>
+  const createInput = (input: Partial<InputVar>): InputVar => ({
+    variable: 'field',
+    label: 'Field',
+    type: InputVarType.textInput,
+    required: false,
+    ...input,
+  })
+  const createForm = (form: Partial<FormArg>): FormArg => ({
+    inputs: [],
+    values: createValues({}),
+    onChange: vi.fn(),
+    ...form,
+  } as FormArg)
+
+  it('should format values by input type', () => {
+    expect(formatValue('12.5', InputVarType.number)).toBe(12.5)
+    expect(formatValue('{"foo":1}', InputVarType.json)).toEqual({ foo: 1 })
+    expect(formatValue('', InputVarType.checkbox)).toBe(false)
+    expect(formatValue(['{"foo":1}'], InputVarType.contexts)).toEqual([{ foo: 1 }])
+    expect(formatValue(null, InputVarType.singleFile)).toBeNull()
+    expect(formatValue([{ transfer_method: TransferMethod.remote_url, related_id: '3' }], InputVarType.singleFile)).toEqual(expect.any(Array))
+    expect(formatValue('', InputVarType.singleFile)).toBeUndefined()
+  })
+
+  it('should detect when file uploads are still in progress', () => {
+    expect(isFilesLoaded([])).toBe(true)
+    expect(isFilesLoaded([createForm({ inputs: [], values: {} })])).toBe(true)
+    expect(isFilesLoaded([createForm({
+      inputs: [],
+      values: createValues({
+        '#files#': [{ transfer_method: TransferMethod.local_file }],
+      }),
+    })])).toBe(false)
+  })
+
+  it('should report required and uploading file errors', () => {
+    const t = (key: string, options?: Record<string, unknown>) => `${key}:${options?.field ?? ''}`
+
+    expect(getFormErrorMessage([createForm({
+      inputs: [createInput({ variable: 'query', label: 'Query', required: true })],
+      values: createValues({ query: '' }),
+    })], [{}], t)).toContain('errorMsg.fieldRequired')
+
+    expect(getFormErrorMessage([createForm({
+      inputs: [createInput({ variable: 'file', label: 'File', type: InputVarType.singleFile })],
+      values: createValues({ file: { transferMethod: TransferMethod.local_file } }),
+    })], [{}], t)).toContain('errorMessage.waitForFileUpload')
+
+    expect(getFormErrorMessage([createForm({
+      inputs: [createInput({ variable: 'files', label: 'Files', type: InputVarType.multiFiles })],
+      values: createValues({ files: [{ transferMethod: TransferMethod.local_file }] }),
+    })], [{}], t)).toContain('errorMessage.waitForFileUpload')
+
+    expect(getFormErrorMessage([createForm({
+      inputs: [createInput({
+        variable: 'config',
+        label: { nodeType: BlockEnum.Tool, nodeName: 'Tool', variable: 'Config' },
+        required: true,
+      })],
+      values: createValues({ config: '' }),
+    })], [{}], t)).toContain('Config')
+  })
+
+  it('should build submit data and keep parse errors', () => {
+    expect(buildSubmitData([createForm({
+      inputs: [createInput({ variable: 'query' })],
+      values: createValues({ query: 'hello' }),
+    })])).toEqual({
+      submitData: { query: 'hello' },
+      parseErrorJsonField: '',
+    })
+
+    expect(buildSubmitData([createForm({
+      inputs: [createInput({ variable: 'payload', type: InputVarType.json })],
+      values: createValues({ payload: '{' }),
+    })]).parseErrorJsonField).toBe('payload')
+
+    expect(buildSubmitData([createForm({
+      inputs: [
+        createInput({ variable: 'files', type: InputVarType.multiFiles }),
+        createInput({ variable: 'file', type: InputVarType.singleFile }),
+      ],
+      values: createValues({
+        files: [{ transfer_method: TransferMethod.remote_url, related_id: '1' }],
+        file: { transfer_method: TransferMethod.remote_url, related_id: '2' },
+      }),
+    })]).submitData).toEqual(expect.objectContaining({
+      files: expect.any(Array),
+      file: expect.any(Object),
+    }))
+  })
+
+  it('should derive the zero-form auto behaviors', () => {
+    expect(shouldAutoRunBeforeRunForm([], false)).toBe(true)
+    expect(shouldAutoRunBeforeRunForm([], true)).toBe(false)
+    expect(shouldAutoShowGeneratedForm([], true)).toBe(true)
+    expect(shouldAutoShowGeneratedForm([createForm({})], true)).toBe(false)
+  })
+})

web/app/components/workflow/nodes/_base/components/before-run-form/__tests__/index.spec.tsx

@@ -0,0 +1,226 @@
+import type { Props as FormProps } from '../form'
+import type { BeforeRunFormProps } from '../index'
+import { fireEvent, render, screen } from '@testing-library/react'
+import { toast } from '@/app/components/base/ui/toast'
+import { BlockEnum, InputVarType } from '@/app/components/workflow/types'
+import BeforeRunForm from '../index'
+
+vi.mock('@/app/components/base/ui/toast', () => ({
+  toast: {
+    error: vi.fn(),
+  },
+}))
+
+vi.mock('../form', () => ({
+  default: ({ values }: { values: Record<string, unknown> }) => <div>{Object.keys(values).join(',')}</div>,
+}))
+
+vi.mock('../panel-wrap', () => ({
+  default: ({ children, nodeName }: { children: React.ReactNode, nodeName: string }) => (
+    <div>
+      <div>{nodeName}</div>
+      {children}
+    </div>
+  ),
+}))
+
+vi.mock('@/app/components/workflow/nodes/human-input/components/single-run-form', () => ({
+  default: ({ onSubmit, handleBack }: { onSubmit: (data: Record<string, unknown>) => void, handleBack?: () => void }) => (
+    <div>
+      <div>single-run-form</div>
+      <button onClick={() => onSubmit({ approved: true })}>submit-generated-form</button>
+      <button onClick={handleBack}>back-generated-form</button>
+    </div>
+  ),
+}))
+
+describe('BeforeRunForm', () => {
+  const mockToastError = vi.mocked(toast.error)
+
+  const createForm = (form: Partial<FormProps>): FormProps => ({
+    inputs: [],
+    values: {},
+    onChange: vi.fn(),
+    ...form,
+  })
+  const createProps = (props: Partial<BeforeRunFormProps>): BeforeRunFormProps => ({
+    nodeName: 'Tool',
+    onHide: vi.fn(),
+    onRun: vi.fn(),
+    onStop: vi.fn(),
+    runningStatus: 'idle' as BeforeRunFormProps['runningStatus'],
+    forms: [],
+    filteredExistVarForms: [],
+    existVarValuesInForms: [],
+    ...props,
+  })
+
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  it('should auto run and render nothing when there are no filtered forms', () => {
+    const onRun = vi.fn()
+    const { container } = render(
+      <BeforeRunForm
+        {...createProps({
+          onRun,
+        })}
+      />,
+    )
+
+    expect(onRun).toHaveBeenCalledWith({})
+    expect(container).toBeEmptyDOMElement()
+  })
+
+  it('should show an error toast when required fields are missing', () => {
+    render(
+      <BeforeRunForm
+        {...createProps({
+          forms: [createForm({
+            inputs: [{ variable: 'query', label: 'Query', type: InputVarType.textInput, required: true }],
+            values: { query: '' },
+          })],
+          filteredExistVarForms: [createForm({
+            inputs: [{ variable: 'query', label: 'Query', type: InputVarType.textInput, required: true }],
+            values: { query: '' },
+          })],
+          existVarValuesInForms: [{}],
+        })}
+      />,
+    )
+
+    fireEvent.click(screen.getByRole('button', { name: 'workflow.singleRun.startRun' }))
+
+    expect(mockToastError).toHaveBeenCalled()
+  })
+
+  it('should generate the human input form instead of running immediately', () => {
+    const handleShowGeneratedForm = vi.fn()
+
+    render(
+      <BeforeRunForm
+        {...createProps({
+          nodeName: 'Human input',
+          nodeType: BlockEnum.HumanInput,
+          forms: [createForm({
+            inputs: [{ variable: 'query', label: 'Query', type: InputVarType.textInput, required: true }],
+            values: { query: 'hello' },
+          })],
+          filteredExistVarForms: [createForm({
+            inputs: [{ variable: 'query', label: 'Query', type: InputVarType.textInput, required: true }],
+            values: { query: 'hello' },
+          })],
+          existVarValuesInForms: [{}],
+          handleShowGeneratedForm,
+        })}
+      />,
+    )
+
+    fireEvent.click(screen.getByRole('button', { name: 'workflow.nodes.humanInput.singleRun.button' }))
+
+    expect(handleShowGeneratedForm).toHaveBeenCalledWith({ query: 'hello' })
+  })
+
+  it('should render the generated human input form and submit it', async () => {
+    const handleSubmitHumanInputForm = vi.fn().mockResolvedValue(undefined)
+    const handleAfterHumanInputStepRun = vi.fn()
+    const handleHideGeneratedForm = vi.fn()
+
+    render(
+      <BeforeRunForm
+        {...createProps({
+          nodeName: 'Human input',
+          nodeType: BlockEnum.HumanInput,
+          forms: [createForm({
+            inputs: [{ variable: 'query', label: 'Query', type: InputVarType.textInput, required: true }],
+            values: { query: 'hello' },
+          })],
+          filteredExistVarForms: [createForm({
+            inputs: [{ variable: 'query', label: 'Query', type: InputVarType.textInput, required: true }],
+            values: { query: 'hello' },
+          })],
+          existVarValuesInForms: [{}],
+          showGeneratedForm: true,
+          formData: {} as BeforeRunFormProps['formData'],
+          handleSubmitHumanInputForm,
+          handleAfterHumanInputStepRun,
+          handleHideGeneratedForm,
+        })}
+      />,
+    )
+
+    expect(screen.getByText('single-run-form')).toBeInTheDocument()
+    fireEvent.click(screen.getByText('submit-generated-form'))
+
+    await Promise.resolve()
+    expect(handleSubmitHumanInputForm).toHaveBeenCalledWith({ approved: true })
+    expect(handleAfterHumanInputStepRun).toHaveBeenCalledTimes(1)
+
+    fireEvent.click(screen.getByText('back-generated-form'))
+    expect(handleHideGeneratedForm).toHaveBeenCalledTimes(1)
+  })
+
+  it('should run immediately when the form is valid', () => {
+    const onRun = vi.fn()
+
+    render(
+      <BeforeRunForm
+        {...createProps({
+          onRun,
+          forms: [createForm({
+            inputs: [{ variable: 'query', label: 'Query', type: InputVarType.textInput, required: true }],
+            values: { query: 'hello' },
+          })],
+          filteredExistVarForms: [createForm({
+            inputs: [{ variable: 'query', label: 'Query', type: InputVarType.textInput, required: true }],
+            values: { query: 'hello' },
+          })],
+          existVarValuesInForms: [{}],
+        })}
+      />,
+    )
+
+    fireEvent.click(screen.getByRole('button', { name: 'workflow.singleRun.startRun' }))
+
+    expect(onRun).toHaveBeenCalledWith({ query: 'hello' })
+  })
+
+  it('should auto show the generated form when human input has no filtered vars', () => {
+    const handleShowGeneratedForm = vi.fn()
+    render(
+      <BeforeRunForm
+        {...createProps({
+          nodeName: 'Human input',
+          nodeType: BlockEnum.HumanInput,
+          handleShowGeneratedForm,
+        })}
+      />,
+    )
+
+    expect(handleShowGeneratedForm).toHaveBeenCalledWith({})
+    expect(screen.getByRole('button', { name: 'workflow.nodes.humanInput.singleRun.button' })).toBeInTheDocument()
+  })
+
+  it('should show an error toast when json input is invalid', () => {
+    render(
+      <BeforeRunForm
+        {...createProps({
+          forms: [createForm({
+            inputs: [{ variable: 'payload', label: 'Payload', type: InputVarType.json, required: true }],
+            values: { payload: '{' },
+          })],
+          filteredExistVarForms: [createForm({
+            inputs: [{ variable: 'payload', label: 'Payload', type: InputVarType.json, required: true }],
+            values: { payload: '{' },
+          })],
+          existVarValuesInForms: [{}],
+        })}
+      />,
+    )
+
+    fireEvent.click(screen.getByRole('button', { name: 'workflow.singleRun.startRun' }))
+
+    expect(mockToastError).toHaveBeenCalled()
+  })
+})

web/app/components/workflow/nodes/_base/components/before-run-form/helpers.ts

@@ -0,0 +1,105 @@
+import type { Props as FormProps } from './form'
+import type { FileEntity } from '@/app/components/base/file-uploader/types'
+import { getProcessedFiles } from '@/app/components/base/file-uploader/utils'
+import { InputVarType } from '@/app/components/workflow/types'
+import { TransferMethod } from '@/types/app'
+
+export function formatValue(value: unknown, type: InputVarType) {
+  if (type === InputVarType.checkbox)
+    return !!value
+  if (value === undefined || value === null)
+    return value
+  if (type === InputVarType.number)
+    return Number.parseFloat(String(value))
+  if (type === InputVarType.json)
+    return JSON.parse(String(value))
+  if (type === InputVarType.contexts)
+    return (value as string[]).map(item => JSON.parse(item))
+  if (type === InputVarType.multiFiles)
+    return getProcessedFiles(value as FileEntity[])
+
+  if (type === InputVarType.singleFile) {
+    if (Array.isArray(value))
+      return getProcessedFiles(value as FileEntity[])
+    if (!value)
+      return undefined
+    return getProcessedFiles([value as FileEntity])[0]
+  }
+
+  return value
+}
+
+export const isFilesLoaded = (forms: FormProps[]) => {
+  if (!forms.length)
+    return true
+
+  const filesForm = forms.find(item => !!item.values['#files#'])
+  if (!filesForm)
+    return true
+
+  const files = filesForm.values['#files#'] as unknown as Array<{ transfer_method?: TransferMethod, upload_file_id?: string }> | undefined
+  return !files?.some(item => item.transfer_method === TransferMethod.local_file && !item.upload_file_id)
+}
+
+export const getFormErrorMessage = (
+  forms: FormProps[],
+  existVarValuesInForms: Record<string, unknown>[],
+  t: (key: string, options?: Record<string, unknown>) => string,
+) => {
+  let errMsg = ''
+
+  forms.forEach((form, index) => {
+    const existVarValuesInForm = existVarValuesInForms[index]
+
+    form.inputs.forEach((input) => {
+      const value = form.values[input.variable] as unknown
+      const missingRequired = input.required
+        && input.type !== InputVarType.checkbox
+        && !(input.variable in existVarValuesInForm)
+        && (value === '' || value === undefined || value === null || (input.type === InputVarType.files && Array.isArray(value) && value.length === 0))
+
+      if (!errMsg && missingRequired) {
+        errMsg = t('errorMsg.fieldRequired', { ns: 'workflow', field: typeof input.label === 'object' ? input.label.variable : input.label })
+        return
+      }
+
+      if (!errMsg && (input.type === InputVarType.singleFile || input.type === InputVarType.multiFiles) && value) {
+        const fileIsUploading = Array.isArray(value)
+          ? value.find((item: { transferMethod?: TransferMethod, uploadedId?: string }) => item.transferMethod === TransferMethod.local_file && !item.uploadedId)
+          : (value as { transferMethod?: TransferMethod, uploadedId?: string }).transferMethod === TransferMethod.local_file
+            && !(value as { transferMethod?: TransferMethod, uploadedId?: string }).uploadedId
+
+        if (fileIsUploading)
+          errMsg = t('errorMessage.waitForFileUpload', { ns: 'appDebug' })
+      }
+    })
+  })
+
+  return errMsg
+}
+
+export const buildSubmitData = (forms: FormProps[]) => {
+  const submitData: Record<string, unknown> = {}
+  let parseErrorJsonField = ''
+
+  forms.forEach((form) => {
+    form.inputs.forEach((input) => {
+      try {
+        submitData[input.variable] = formatValue(form.values[input.variable], input.type)
+      }
+      catch {
+        parseErrorJsonField = input.variable
+      }
+    })
+  })
+
+  return { submitData, parseErrorJsonField }
+}
+
+export const shouldAutoRunBeforeRunForm = (filteredExistVarForms: FormProps[], isHumanInput: boolean) => {
+  return filteredExistVarForms.length === 0 && !isHumanInput
+}
+
+export const shouldAutoShowGeneratedForm = (filteredExistVarForms: FormProps[], isHumanInput: boolean) => {
+  return filteredExistVarForms.length === 0 && isHumanInput
+}

web/app/components/workflow/nodes/_base/components/before-run-form/index.tsx

@@ -9,14 +9,19 @@ import * as React from 'react'
 import { useEffect, useRef } from 'react'
 import { useTranslation } from 'react-i18next'
 import Button from '@/app/components/base/button'
-import { getProcessedFiles } from '@/app/components/base/file-uploader/utils'
 import { toast } from '@/app/components/base/ui/toast'
 import Split from '@/app/components/workflow/nodes/_base/components/split'
 import SingleRunForm from '@/app/components/workflow/nodes/human-input/components/single-run-form'
-import { BlockEnum, InputVarType } from '@/app/components/workflow/types'
-import { TransferMethod } from '@/types/app'
+import { BlockEnum } from '@/app/components/workflow/types'
 import { cn } from '@/utils/classnames'
 import Form from './form'
+import {
+  buildSubmitData,
+  getFormErrorMessage,
+  isFilesLoaded,
+  shouldAutoRunBeforeRunForm,
+  shouldAutoShowGeneratedForm,
+} from './helpers'
 import PanelWrap from './panel-wrap'
 
 const i18nPrefix = 'singleRun'
@@ -41,33 +46,6 @@ export type BeforeRunFormProps = {
   handleAfterHumanInputStepRun?: () => void
 } & Partial<SpecialResultPanelProps>
 
-function formatValue(value: string | any, type: InputVarType) {
-  if (type === InputVarType.checkbox)
-    return !!value
-  if (value === undefined || value === null)
-    return value
-  if (type === InputVarType.number)
-    return Number.parseFloat(value)
-  if (type === InputVarType.json)
-    return JSON.parse(value)
-  if (type === InputVarType.contexts) {
-    return value.map((item: any) => {
-      return JSON.parse(item)
-    })
-  }
-  if (type === InputVarType.multiFiles)
-    return getProcessedFiles(value)
-
-  if (type === InputVarType.singleFile) {
-    if (Array.isArray(value))
-      return getProcessedFiles(value)
-    if (!value)
-      return undefined
-    return getProcessedFiles([value])[0]
-  }
-
-  return value
-}
 const BeforeRunForm: FC<BeforeRunFormProps> = ({
   nodeName,
   nodeType,
@@ -88,61 +66,16 @@ const BeforeRunForm: FC<BeforeRunFormProps> = ({
   const isHumanInput = nodeType === BlockEnum.HumanInput
   const showBackButton = filteredExistVarForms.length > 0
 
-  const isFileLoaded = (() => {
-    if (!forms || forms.length === 0)
-      return true
-    // system files
-    const filesForm = forms.find(item => !!item.values['#files#'])
-    if (!filesForm)
-      return true
-
-    const files = filesForm.values['#files#'] as any
-    if (files?.some((item: any) => item.transfer_method === TransferMethod.local_file && !item.upload_file_id))
-      return false
-
-    return true
-  })()
+  const isFileLoaded = isFilesLoaded(forms)
 
   const handleRunOrGenerateForm = () => {
-    let errMsg = ''
-    forms.forEach((form, i) => {
-      const existVarValuesInForm = existVarValuesInForms[i]
-
-      form.inputs.forEach((input) => {
-        const value = form.values[input.variable] as any
-        if (!errMsg && input.required && (input.type !== InputVarType.checkbox) && !(input.variable in existVarValuesInForm) && (value === '' || value === undefined || value === null || (input.type === InputVarType.files && value.length === 0)))
-          errMsg = t('errorMsg.fieldRequired', { ns: 'workflow', field: typeof input.label === 'object' ? input.label.variable : input.label })
-
-        if (!errMsg && (input.type === InputVarType.singleFile || input.type === InputVarType.multiFiles) && value) {
-          let fileIsUploading = false
-          if (Array.isArray(value))
-            fileIsUploading = value.find(item => item.transferMethod === TransferMethod.local_file && !item.uploadedId)
-          else
-            fileIsUploading = value.transferMethod === TransferMethod.local_file && !value.uploadedId
-
-          if (fileIsUploading)
-            errMsg = t('errorMessage.waitForFileUpload', { ns: 'appDebug' })
-        }
-      })
-    })
+    const errMsg = getFormErrorMessage(forms, existVarValuesInForms, t)
     if (errMsg) {
       toast.error(errMsg)
       return
     }
 
-    const submitData: Record<string, any> = {}
-    let parseErrorJsonField = ''
-    forms.forEach((form) => {
-      form.inputs.forEach((input) => {
-        try {
-          const value = formatValue(form.values[input.variable], input.type)
-          submitData[input.variable] = value
-        }
-        catch {
-          parseErrorJsonField = input.variable
-        }
-      })
-    })
+    const { submitData, parseErrorJsonField } = buildSubmitData(forms)
     if (parseErrorJsonField) {
       toast.error(t('errorMsg.invalidJson', { ns: 'workflow', field: parseErrorJsonField }))
       return
@@ -165,13 +98,13 @@ const BeforeRunForm: FC<BeforeRunFormProps> = ({
     if (hasRun.current)
       return
     hasRun.current = true
-    if (filteredExistVarForms.length === 0 && !isHumanInput)
+    if (shouldAutoRunBeforeRunForm(filteredExistVarForms, isHumanInput))
       onRun({})
-    if (filteredExistVarForms.length === 0 && isHumanInput)
+    if (shouldAutoShowGeneratedForm(filteredExistVarForms, isHumanInput))
       handleShowGeneratedForm?.({})
   }, [filteredExistVarForms, handleShowGeneratedForm, isHumanInput, onRun])
 
-  if (filteredExistVarForms.length === 0 && !isHumanInput)
+  if (shouldAutoRunBeforeRunForm(filteredExistVarForms, isHumanInput))
     return null
 
   return (

web/app/components/workflow/nodes/_base/components/form-input-item.helpers.ts

@@ -0,0 +1,259 @@
+'use client'
+
+import type { ResourceVarInputs } from '../types'
+import type {
+  CredentialFormSchema,
+  FormOption,
+  TypeWithI18N,
+} from '@/app/components/header/account-setting/model-provider-page/declarations'
+import type { ValueSelector, Var } from '@/app/components/workflow/types'
+import { FormTypeEnum } from '@/app/components/header/account-setting/model-provider-page/declarations'
+import { VarType } from '@/app/components/workflow/types'
+import { VarKindType } from '../types'
+
+type FormInputSchema = CredentialFormSchema & Partial<{
+  _type: FormTypeEnum
+  multiple: boolean
+  options: FormOption[]
+  placeholder: TypeWithI18N
+  scope: string
+}>
+
+type FormInputValue = ResourceVarInputs[string] | undefined
+
+type ShowOnCondition = {
+  value: unknown
+  variable: string
+}
+
+type OptionLabel = string | TypeWithI18N
+
+type SelectableOption = {
+  icon?: string
+  label: OptionLabel
+  show_on?: ShowOnCondition[]
+  value: string
+}
+
+export type SelectItem = {
+  icon?: string
+  name: string
+  value: string
+}
+
+export type FormInputState = {
+  defaultValue: unknown
+  isAppSelector: boolean
+  isArray: boolean
+  isBoolean: boolean
+  isCheckbox: boolean
+  isConstant: boolean
+  isDynamicSelect: boolean
+  isFile: boolean
+  isFiles: boolean
+  isModelSelector: boolean
+  isMultipleSelect: boolean
+  isNumber: boolean
+  isObject: boolean
+  isSelect: boolean
+  isShowJSONEditor: boolean
+  isString: boolean
+  options: FormOption[]
+  placeholder?: TypeWithI18N
+  scope?: string
+  showVariableSelector: boolean
+  showTypeSwitch: boolean
+  variable: string
+}
+
+const optionMatchesValue = (
+  values: ResourceVarInputs,
+  showOnItem: ShowOnCondition,
+) => values[showOnItem.variable]?.value === showOnItem.value || values[showOnItem.variable] === showOnItem.value
+
+const getOptionLabel = (option: SelectableOption, language: string) => {
+  if (typeof option.label === 'string')
+    return option.label
+
+  return option.label[language] || option.label.en_US || option.value
+}
+
+export const getFormInputState = (
+  schema: FormInputSchema,
+  varInput: FormInputValue,
+): FormInputState => {
+  const {
+    default: defaultValue,
+    multiple = false,
+    options = [],
+    placeholder,
+    scope,
+    type,
+    variable,
+    _type,
+  } = schema
+
+  const isString = type === FormTypeEnum.textInput || type === FormTypeEnum.secretInput
+  const isNumber = type === FormTypeEnum.textNumber
+  const isObject = type === FormTypeEnum.object
+  const isArray = type === FormTypeEnum.array
+  const isShowJSONEditor = isObject || isArray
+  const isFile = type === FormTypeEnum.file || type === FormTypeEnum.files
+  const isFiles = type === FormTypeEnum.files
+  const isBoolean = _type === FormTypeEnum.boolean
+  const isCheckbox = _type === FormTypeEnum.checkbox
+  const isSelect = type === FormTypeEnum.select
+  const isDynamicSelect = type === FormTypeEnum.dynamicSelect
+  const isAppSelector = type === FormTypeEnum.appSelector
+  const isModelSelector = type === FormTypeEnum.modelSelector
+  const showTypeSwitch = isNumber || isBoolean || isObject || isArray || isSelect
+  const isConstant = varInput?.type === VarKindType.constant || !varInput?.type
+  const showVariableSelector = isFile || varInput?.type === VarKindType.variable
+  const isMultipleSelect = multiple && (isSelect || isDynamicSelect)
+
+  return {
+    defaultValue,
+    isAppSelector,
+    isArray,
+    isBoolean,
+    isCheckbox,
+    isConstant,
+    isDynamicSelect,
+    isFile,
+    isFiles,
+    isModelSelector,
+    isMultipleSelect,
+    isNumber,
+    isObject,
+    isSelect,
+    isShowJSONEditor,
+    isString,
+    options,
+    placeholder,
+    scope,
+    showTypeSwitch,
+    showVariableSelector,
+    variable,
+  }
+}
+
+export const getTargetVarType = (state: FormInputState) => {
+  if (state.isString)
+    return VarType.string
+  if (state.isNumber)
+    return VarType.number
+  if (state.isFile)
+    return state.isFiles ? VarType.arrayFile : VarType.file
+  if (state.isSelect)
+    return VarType.string
+  if (state.isBoolean)
+    return VarType.boolean
+  if (state.isObject)
+    return VarType.object
+  if (state.isArray)
+    return VarType.arrayObject
+  return VarType.string
+}
+
+export const getFilterVar = (state: FormInputState) => {
+  if (state.isNumber)
+    return (varPayload: Var) => varPayload.type === VarType.number
+  if (state.isString)
+    return (varPayload: Var) => [VarType.string, VarType.number, VarType.secret].includes(varPayload.type)
+  if (state.isFile)
+    return (varPayload: Var) => [VarType.file, VarType.arrayFile].includes(varPayload.type)
+  if (state.isBoolean)
+    return (varPayload: Var) => varPayload.type === VarType.boolean
+  if (state.isObject)
+    return (varPayload: Var) => varPayload.type === VarType.object
+  if (state.isArray)
+    return (varPayload: Var) => [VarType.array, VarType.arrayString, VarType.arrayNumber, VarType.arrayObject].includes(varPayload.type)
+  return undefined
+}
+
+export const getVarKindType = (state: FormInputState) => {
+  if (state.isFile)
+    return VarKindType.variable
+  if (state.isSelect || state.isDynamicSelect || state.isBoolean || state.isNumber || state.isArray || state.isObject)
+    return VarKindType.constant
+  if (state.isString)
+    return VarKindType.mixed
+  return undefined
+}
+
+export const filterVisibleOptions = (
+  options: SelectableOption[],
+  values: ResourceVarInputs,
+) => options.filter((option) => {
+  if (option.show_on?.length)
+    return option.show_on.every(showOnItem => optionMatchesValue(values, showOnItem))
+  return true
+})
+
+export const mapSelectItems = (
+  options: SelectableOption[],
+  language: string,
+): SelectItem[] => options.map(option => ({
+  icon: option.icon,
+  name: getOptionLabel(option, language),
+  value: option.value,
+}))
+
+export const hasOptionIcon = (options: SelectableOption[]) => options.some(option => !!option.icon)
+
+export const getSelectedLabels = (
+  selectedValues: string[] | undefined,
+  options: SelectableOption[],
+  language: string,
+) => {
+  if (!selectedValues?.length)
+    return ''
+
+  const selectedOptions = options.filter(option => selectedValues.includes(option.value))
+  if (selectedOptions.length <= 2) {
+    return selectedOptions
+      .map(option => getOptionLabel(option, language))
+      .join(', ')
+  }
+
+  return `${selectedOptions.length} selected`
+}
+
+export const getCheckboxListOptions = (
+  options: SelectableOption[],
+  language: string,
+) => options.map(option => ({
+  label: getOptionLabel(option, language),
+  value: option.value,
+}))
+
+export const getCheckboxListValue = (
+  currentValue: unknown,
+  defaultValue: unknown,
+  availableOptions: SelectableOption[],
+) => {
+  let current: string[] = []
+
+  if (Array.isArray(currentValue))
+    current = currentValue as string[]
+  else if (typeof currentValue === 'string')
+    current = [currentValue]
+  else if (Array.isArray(defaultValue))
+    current = defaultValue as string[]
+
+  const allowedValues = new Set(availableOptions.map(option => option.value))
+  return current.filter(item => allowedValues.has(item))
+}
+
+export const getNumberInputValue = (currentValue: unknown): number | string => {
+  if (typeof currentValue === 'number')
+    return Number.isNaN(currentValue) ? '' : currentValue
+
+  if (typeof currentValue === 'string')
+    return currentValue
+
+  return ''
+}
+
+export const normalizeVariableSelectorValue = (value: ValueSelector | string) =>
+  value || ''

web/app/components/workflow/nodes/_base/components/form-input-item.sections.tsx

@@ -0,0 +1,129 @@
+'use client'
+
+import type { FC, ReactElement } from 'react'
+import type { SelectItem } from './form-input-item.helpers'
+import { Listbox, ListboxButton, ListboxOption, ListboxOptions } from '@headlessui/react'
+import { ChevronDownIcon } from '@heroicons/react/20/solid'
+import { RiCheckLine, RiLoader4Line } from '@remixicon/react'
+import CodeEditor from '@/app/components/workflow/nodes/_base/components/editor/code-editor'
+import { CodeLanguage } from '@/app/components/workflow/nodes/code/types'
+import { cn } from '@/utils/classnames'
+
+type MultiSelectFieldProps = {
+  disabled: boolean
+  isLoading?: boolean
+  items: SelectItem[]
+  onChange: (value: string[]) => void
+  placeholder?: string
+  selectedLabel: string
+  value: string[]
+}
+
+const LoadingIndicator = () => (
+  <RiLoader4Line className="h-3.5 w-3.5 animate-spin text-text-secondary" />
+)
+
+const ToggleIndicator = () => (
+  <ChevronDownIcon
+    className="h-4 w-4 text-text-quaternary group-hover/simple-select:text-text-secondary"
+    aria-hidden="true"
+  />
+)
+
+const SelectedMark = () => (
+  <span className="absolute inset-y-0 right-0 flex items-center pr-2 text-text-accent">
+    <RiCheckLine className="h-4 w-4" aria-hidden="true" />
+  </span>
+)
+
+export const MultiSelectField: FC<MultiSelectFieldProps> = ({
+  disabled,
+  isLoading = false,
+  items,
+  onChange,
+  placeholder,
+  selectedLabel,
+  value,
+}) => {
+  const textClassName = cn(
+    'block truncate text-left system-sm-regular',
+    isLoading
+      ? 'text-components-input-text-placeholder'
+      : value.length > 0
+        ? 'text-components-input-text-filled'
+        : 'text-components-input-text-placeholder',
+  )
+
+  const renderLabel = () => {
+    if (isLoading)
+      return 'Loading...'
+
+    return selectedLabel || placeholder || 'Select options'
+  }
+
+  return (
+    <Listbox multiple value={value} onChange={onChange} disabled={disabled}>
+      <div className="group/simple-select relative h-8 grow">
+        <ListboxButton className="flex h-full w-full cursor-pointer items-center rounded-lg border-0 bg-components-input-bg-normal pl-3 pr-10 focus-visible:bg-state-base-hover-alt focus-visible:outline-none group-hover/simple-select:bg-state-base-hover-alt sm:text-sm sm:leading-6">
+          <span className={textClassName}>
+            {renderLabel()}
+          </span>
+          <span className="absolute inset-y-0 right-0 flex items-center pr-2">
+            {isLoading ? <LoadingIndicator /> : <ToggleIndicator />}
+          </span>
+        </ListboxButton>
+        <ListboxOptions className="absolute z-10 mt-1 max-h-60 w-full overflow-auto rounded-xl border-[0.5px] border-components-panel-border bg-components-panel-bg-blur px-1 py-1 text-base shadow-lg backdrop-blur-sm focus:outline-none sm:text-sm">
+          {items.map(item => (
+            <ListboxOption
+              key={item.value}
+              value={item.value}
+              className={({ focus }) =>
+                cn('relative cursor-pointer select-none rounded-lg py-2 pl-3 pr-9 text-text-secondary hover:bg-state-base-hover', focus && 'bg-state-base-hover')}
+            >
+              {({ selected }) => (
+                <>
+                  <div className="flex items-center">
+                    {item.icon && (
+                      <img src={item.icon} alt="" className="mr-2 h-4 w-4" />
+                    )}
+                    <span className={cn('block truncate', selected && 'font-normal')}>
+                      {item.name}
+                    </span>
+                  </div>
+                  {selected && <SelectedMark />}
+                </>
+              )}
+            </ListboxOption>
+          ))}
+        </ListboxOptions>
+      </div>
+    </Listbox>
+  )
+}
+
+type JsonEditorFieldProps = {
+  onChange: (value: string) => void
+  placeholder?: ReactElement | string
+  value: string
+}
+
+export const JsonEditorField: FC<JsonEditorFieldProps> = ({
+  onChange,
+  placeholder,
+  value,
+}) => {
+  return (
+    <div className="mt-1 w-full">
+      <CodeEditor
+        title="JSON"
+        value={value}
+        isExpand
+        isInNode
+        language={CodeLanguage.json}
+        onChange={onChange}
+        className="w-full"
+        placeholder={placeholder}
+      />
+    </div>
+  )
+}

web/app/components/workflow/nodes/_base/components/form-input-item.tsx

@@ -1,27 +1,20 @@
 'use client'
 import type { FC } from 'react'
 import type { ResourceVarInputs } from '../types'
-import type { CredentialFormSchema, FormOption } from '@/app/components/header/account-setting/model-provider-page/declarations'
+import type { CredentialFormSchema, FormOption, FormTypeEnum } from '@/app/components/header/account-setting/model-provider-page/declarations'
 import type { Event, Tool } from '@/app/components/tools/types'
 import type { TriggerWithProvider } from '@/app/components/workflow/block-selector/types'
 import type { ToolWithProvider, ValueSelector, Var } from '@/app/components/workflow/types'
-import { Listbox, ListboxButton, ListboxOption, ListboxOptions } from '@headlessui/react'
-import { ChevronDownIcon } from '@heroicons/react/20/solid'
-
-import { RiCheckLine, RiLoader4Line } from '@remixicon/react'
 import { useEffect, useMemo, useState } from 'react'
 import CheckboxList from '@/app/components/base/checkbox-list'
 import Input from '@/app/components/base/input'
 import { SimpleSelect } from '@/app/components/base/select'
-import { FormTypeEnum } from '@/app/components/header/account-setting/model-provider-page/declarations'
 import { useLanguage } from '@/app/components/header/account-setting/model-provider-page/hooks'
 import AppSelector from '@/app/components/plugins/plugin-detail-panel/app-selector'
 import ModelParameterModal from '@/app/components/plugins/plugin-detail-panel/model-selector'
 import { PluginCategoryEnum } from '@/app/components/plugins/types'
-import CodeEditor from '@/app/components/workflow/nodes/_base/components/editor/code-editor'
 import VarReferencePicker from '@/app/components/workflow/nodes/_base/components/variable/var-reference-picker'
 import useAvailableVarList from '@/app/components/workflow/nodes/_base/hooks/use-available-var-list'
-import { CodeLanguage } from '@/app/components/workflow/nodes/code/types'
 import MixedVariableTextInput from '@/app/components/workflow/nodes/tool/components/mixed-variable-text-input'
 import { VarType } from '@/app/components/workflow/types'
 import { useFetchDynamicOptions } from '@/service/use-plugins'
@@ -29,6 +22,24 @@ import { useTriggerPluginDynamicOptions } from '@/service/use-triggers'
 import { cn } from '@/utils/classnames'
 import { VarKindType } from '../types'
 import FormInputBoolean from './form-input-boolean'
+import {
+  filterVisibleOptions,
+  getCheckboxListOptions,
+  getCheckboxListValue,
+  getFilterVar,
+  getFormInputState,
+  getNumberInputValue,
+  getSelectedLabels,
+  getTargetVarType,
+  getVarKindType,
+  hasOptionIcon,
+  mapSelectItems,
+  normalizeVariableSelectorValue,
+} from './form-input-item.helpers'
+import {
+  JsonEditorField,
+  MultiSelectField,
+} from './form-input-item.sections'
 import FormInputTypeSwitch from './form-input-type-switch'
 
 type Props = {
@@ -66,33 +77,34 @@ const FormInputItem: FC<Props> = ({
   const [toolsOptions, setToolsOptions] = useState<FormOption[] | null>(null)
   const [isLoadingToolsOptions, setIsLoadingToolsOptions] = useState(false)
 
+  const formState = getFormInputState(schema as CredentialFormSchema & {
+    _type?: FormTypeEnum
+    multiple?: boolean
+    options?: FormOption[]
+    scope?: string
+  }, value[schema.variable])
+
   const {
-    placeholder,
-    variable,
-    type,
-    _type,
-    default: defaultValue,
+    defaultValue,
+    isAppSelector,
+    isBoolean,
+    isCheckbox,
+    isConstant,
+    isDynamicSelect,
+    isModelSelector,
+    isMultipleSelect,
+    isNumber,
+    isSelect,
+    isShowJSONEditor,
+    isString,
     options,
-    multiple,
+    placeholder,
     scope,
-  } = schema as any
+    showTypeSwitch,
+    showVariableSelector,
+    variable,
+  } = formState
   const varInput = value[variable]
-  const isString = type === FormTypeEnum.textInput || type === FormTypeEnum.secretInput
-  const isNumber = type === FormTypeEnum.textNumber
-  const isObject = type === FormTypeEnum.object
-  const isArray = type === FormTypeEnum.array
-  const isShowJSONEditor = isObject || isArray
-  const isFile = type === FormTypeEnum.file || type === FormTypeEnum.files
-  const isBoolean = _type === FormTypeEnum.boolean
-  const isCheckbox = _type === FormTypeEnum.checkbox
-  const isSelect = type === FormTypeEnum.select
-  const isDynamicSelect = type === FormTypeEnum.dynamicSelect
-  const isAppSelector = type === FormTypeEnum.appSelector
-  const isModelSelector = type === FormTypeEnum.modelSelector
-  const showTypeSwitch = isNumber || isBoolean || isObject || isArray || isSelect
-  const isConstant = varInput?.type === VarKindType.constant || !varInput?.type
-  const showVariableSelector = isFile || varInput?.type === VarKindType.variable
-  const isMultipleSelect = multiple && (isSelect || isDynamicSelect)
 
   const { availableVars, availableNodesWithParent } = useAvailableVarList(nodeId, {
     onlyLeafNodeVar: false,
@@ -101,56 +113,6 @@ const FormInputItem: FC<Props> = ({
     },
   })
 
-  const targetVarType = () => {
-    if (isString)
-      return VarType.string
-    else if (isNumber)
-      return VarType.number
-    else if (type === FormTypeEnum.files)
-      return VarType.arrayFile
-    else if (type === FormTypeEnum.file)
-      return VarType.file
-    else if (isSelect)
-      return VarType.string
-    // else if (isAppSelector)
-    //   return VarType.appSelector
-    // else if (isModelSelector)
-    //   return VarType.modelSelector
-    else if (isBoolean)
-      return VarType.boolean
-    else if (isObject)
-      return VarType.object
-    else if (isArray)
-      return VarType.arrayObject
-    else
-      return VarType.string
-  }
-
-  const getFilterVar = () => {
-    if (isNumber)
-      return (varPayload: any) => varPayload.type === VarType.number
-    else if (isString)
-      return (varPayload: any) => [VarType.string, VarType.number, VarType.secret].includes(varPayload.type)
-    else if (isFile)
-      return (varPayload: any) => [VarType.file, VarType.arrayFile].includes(varPayload.type)
-    else if (isBoolean)
-      return (varPayload: any) => varPayload.type === VarType.boolean
-    else if (isObject)
-      return (varPayload: any) => varPayload.type === VarType.object
-    else if (isArray)
-      return (varPayload: any) => [VarType.array, VarType.arrayString, VarType.arrayNumber, VarType.arrayObject].includes(varPayload.type)
-    return undefined
-  }
-
-  const getVarKindType = () => {
-    if (isFile)
-      return VarKindType.variable
-    if (isSelect || isDynamicSelect || isBoolean || isNumber || isArray || isObject)
-      return VarKindType.constant
-    if (isString)
-      return VarKindType.mixed
-  }
-
   // Fetch dynamic options hook for tools
   const { mutateAsync: fetchDynamicOptions } = useFetchDynamicOptions(
     currentProvider?.plugin_id || '',
@@ -238,30 +200,12 @@ const FormInputItem: FC<Props> = ({
       ...value,
       [variable]: {
         ...varInput,
-        type: getVarKindType(),
+        type: getVarKindType(formState),
         value: isNumber ? Number.parseFloat(newValue) : newValue,
       },
     })
   }
 
-  const getSelectedLabels = (selectedValues: any[]) => {
-    if (!selectedValues || selectedValues.length === 0)
-      return ''
-
-    const optionsList = isDynamicSelect ? (dynamicOptions || options || []) : (options || [])
-    const selectedOptions = optionsList.filter((opt: any) =>
-      selectedValues.includes(opt.value),
-    )
-
-    if (selectedOptions.length <= 2) {
-      return selectedOptions
-        .map((opt: any) => opt.label?.[language] || opt.label?.en_US || opt.value)
-        .join(', ')
-    }
-
-    return `${selectedOptions.length} selected`
-  }
-
   const handleAppOrModelSelect = (newValue: any) => {
     onChange({
       ...value,
@@ -278,38 +222,44 @@ const FormInputItem: FC<Props> = ({
       [variable]: {
         ...varInput,
         type: VarKindType.variable,
-        value: newValue || '',
+        value: normalizeVariableSelectorValue(newValue),
       },
     })
   }
 
-  const availableCheckboxOptions = useMemo(() => (
-    (options || []).filter((option: { show_on?: Array<{ variable: string, value: any }> }) => {
-      if (option.show_on?.length)
-        return option.show_on.every(showOnItem => value[showOnItem.variable]?.value === showOnItem.value || value[showOnItem.variable] === showOnItem.value)
-      return true
-    })
-  ), [options, value])
+  const availableCheckboxOptions = useMemo(
+    () => filterVisibleOptions(options, value),
+    [options, value],
+  )
+  const checkboxListOptions = useMemo(
+    () => getCheckboxListOptions(availableCheckboxOptions, language),
+    [availableCheckboxOptions, language],
+  )
+  const checkboxListValue = useMemo(
+    () => getCheckboxListValue(varInput?.value, defaultValue, availableCheckboxOptions),
+    [availableCheckboxOptions, defaultValue, varInput?.value],
+  )
 
-  const checkboxListOptions = useMemo(() => (
-    availableCheckboxOptions.map((option: { value: string, label: Record<string, string> }) => ({
-      value: option.value,
-      label: option.label?.[language] || option.label?.en_US || option.value,
-    }))
-  ), [availableCheckboxOptions, language])
-
-  const checkboxListValue = useMemo(() => {
-    let current: string[] = []
-    if (Array.isArray(varInput?.value))
-      current = varInput.value as string[]
-    else if (typeof varInput?.value === 'string')
-      current = [varInput.value as string]
-    else if (Array.isArray(defaultValue))
-      current = defaultValue as string[]
-
-    const allowedValues = new Set(availableCheckboxOptions.map((option: { value: string }) => option.value))
-    return current.filter(item => allowedValues.has(item))
-  }, [varInput?.value, defaultValue, availableCheckboxOptions])
+  const visibleSelectOptions = useMemo(
+    () => filterVisibleOptions(options, value),
+    [options, value],
+  )
+  const visibleDynamicOptions = useMemo(
+    () => filterVisibleOptions(dynamicOptions || options || [], value),
+    [dynamicOptions, options, value],
+  )
+  const staticSelectItems = useMemo(
+    () => mapSelectItems(visibleSelectOptions, language),
+    [language, visibleSelectOptions],
+  )
+  const dynamicSelectItems = useMemo(
+    () => mapSelectItems(visibleDynamicOptions, language),
+    [language, visibleDynamicOptions],
+  )
+  const selectedLabels = useMemo(
+    () => getSelectedLabels(varInput?.value as string[] | undefined, isDynamicSelect ? visibleDynamicOptions : visibleSelectOptions, language),
+    [isDynamicSelect, language, varInput?.value, visibleDynamicOptions, visibleSelectOptions],
+  )
 
   const handleCheckboxListChange = (selected: string[]) => {
     onChange({
@@ -343,7 +293,7 @@ const FormInputItem: FC<Props> = ({
         <Input
           className="h-8 grow"
           type="number"
-          value={Number.isNaN(varInput?.value) ? '' : varInput?.value}
+          value={getNumberInputValue(varInput?.value)}
           onChange={e => handleValueChange(e.target.value)}
           placeholder={placeholder?.[language] || placeholder?.en_US}
         />
@@ -368,20 +318,11 @@ const FormInputItem: FC<Props> = ({
         <SimpleSelect
           wrapperClassName="h-8 grow"
           disabled={readOnly}
-          defaultValue={varInput?.value}
-          items={options.filter((option: { show_on: any[] }) => {
-            if (option.show_on.length)
-              return option.show_on.every(showOnItem => value[showOnItem.variable] === showOnItem.value)
-
-            return true
-          }).map((option: { value: any, label: { [x: string]: any, en_US: any }, icon?: string }) => ({
-            value: option.value,
-            name: option.label[language] || option.label.en_US,
-            icon: option.icon,
-          }))}
+          defaultValue={varInput?.value as string | undefined}
+          items={staticSelectItems}
           onSelect={item => handleValueChange(item.value as string)}
           placeholder={placeholder?.[language] || placeholder?.en_US}
-          renderOption={options.some((opt: any) => opt.icon)
+          renderOption={hasOptionIcon(visibleSelectOptions)
             ? ({ item }) => (
                 <div className="flex items-center">
                   {item.icon && (
@@ -394,74 +335,21 @@ const FormInputItem: FC<Props> = ({
         />
       )}
       {isSelect && isConstant && isMultipleSelect && (
-        <Listbox
-          multiple
-          value={varInput?.value || []}
-          onChange={handleValueChange}
+        <MultiSelectField
           disabled={readOnly}
-        >
-          <div className="group/simple-select relative h-8 grow">
-            <ListboxButton className="flex h-full w-full cursor-pointer items-center rounded-lg border-0 bg-components-input-bg-normal pl-3 pr-10 focus-visible:bg-state-base-hover-alt focus-visible:outline-none group-hover/simple-select:bg-state-base-hover-alt sm:text-sm sm:leading-6">
-              <span className={cn('system-sm-regular block truncate text-left', varInput?.value?.length > 0 ? 'text-components-input-text-filled' : 'text-components-input-text-placeholder')}>
-                {getSelectedLabels(varInput?.value) || placeholder?.[language] || placeholder?.en_US || 'Select options'}
-              </span>
-              <span className="absolute inset-y-0 right-0 flex items-center pr-2">
-                <ChevronDownIcon
-                  className="h-4 w-4 text-text-quaternary group-hover/simple-select:text-text-secondary"
-                  aria-hidden="true"
-                />
-              </span>
-            </ListboxButton>
-            <ListboxOptions className="absolute z-10 mt-1 max-h-60 w-full overflow-auto rounded-xl border-[0.5px] border-components-panel-border bg-components-panel-bg-blur px-1 py-1 text-base shadow-lg backdrop-blur-sm focus:outline-none sm:text-sm">
-              {options.filter((option: { show_on: any[] }) => {
-                if (option.show_on?.length)
-                  return option.show_on.every(showOnItem => value[showOnItem.variable] === showOnItem.value)
-                return true
-              }).map((option: { value: any, label: { [x: string]: any, en_US: any }, icon?: string }) => (
-                <ListboxOption
-                  key={option.value}
-                  value={option.value}
-                  className={({ focus }) =>
-                    cn('relative cursor-pointer select-none rounded-lg py-2 pl-3 pr-9 text-text-secondary hover:bg-state-base-hover', focus && 'bg-state-base-hover')}
-                >
-                  {({ selected }) => (
-                    <>
-                      <div className="flex items-center">
-                        {option.icon && (
-                          <img src={option.icon} alt="" className="mr-2 h-4 w-4" />
-                        )}
-                        <span className={cn('block truncate', selected && 'font-normal')}>
-                          {option.label[language] || option.label.en_US}
-                        </span>
-                      </div>
-                      {selected && (
-                        <span className="absolute inset-y-0 right-0 flex items-center pr-2 text-text-accent">
-                          <RiCheckLine className="h-4 w-4" aria-hidden="true" />
-                        </span>
-                      )}
-                    </>
-                  )}
-                </ListboxOption>
-              ))}
-            </ListboxOptions>
-          </div>
-        </Listbox>
+          value={(varInput?.value as string[] | undefined) || []}
+          items={staticSelectItems}
+          onChange={handleValueChange}
+          placeholder={placeholder?.[language] || placeholder?.en_US}
+          selectedLabel={selectedLabels}
+        />
       )}
       {isDynamicSelect && !isMultipleSelect && (
         <SimpleSelect
           wrapperClassName="h-8 grow"
           disabled={readOnly || isLoadingOptions}
-          defaultValue={varInput?.value}
-          items={(dynamicOptions || options || []).filter((option: { show_on?: any[] }) => {
-            if (option.show_on?.length)
-              return option.show_on.every(showOnItem => value[showOnItem.variable] === showOnItem.value)
-
-            return true
-          }).map((option: { value: any, label: { [x: string]: any, en_US: any }, icon?: string }) => ({
-            value: option.value,
-            name: option.label[language] || option.label.en_US,
-            icon: option.icon,
-          }))}
+          defaultValue={varInput?.value as string | undefined}
+          items={dynamicSelectItems}
           onSelect={item => handleValueChange(item.value as string)}
           placeholder={isLoadingOptions ? 'Loading...' : (placeholder?.[language] || placeholder?.en_US)}
           renderOption={({ item }) => (
@@ -475,83 +363,22 @@ const FormInputItem: FC<Props> = ({
         />
       )}
       {isDynamicSelect && isMultipleSelect && (
-        <Listbox
-          multiple
-          value={varInput?.value || []}
-          onChange={handleValueChange}
+        <MultiSelectField
           disabled={readOnly || isLoadingOptions}
-        >
-          <div className="group/simple-select relative h-8 grow">
-            <ListboxButton className="flex h-full w-full cursor-pointer items-center rounded-lg border-0 bg-components-input-bg-normal pl-3 pr-10 focus-visible:bg-state-base-hover-alt focus-visible:outline-none group-hover/simple-select:bg-state-base-hover-alt sm:text-sm sm:leading-6">
-              <span className={cn('system-sm-regular block truncate text-left', isLoadingOptions
-                ? 'text-components-input-text-placeholder'
-                : varInput?.value?.length > 0 ? 'text-components-input-text-filled' : 'text-components-input-text-placeholder')}
-              >
-                {isLoadingOptions
-                  ? 'Loading...'
-                  : getSelectedLabels(varInput?.value) || placeholder?.[language] || placeholder?.en_US || 'Select options'}
-              </span>
-              <span className="absolute inset-y-0 right-0 flex items-center pr-2">
-                {isLoadingOptions
-                  ? (
-                      <RiLoader4Line className="h-3.5 w-3.5 animate-spin text-text-secondary" />
-                    )
-                  : (
-                      <ChevronDownIcon
-                        className="h-4 w-4 text-text-quaternary group-hover/simple-select:text-text-secondary"
-                        aria-hidden="true"
-                      />
-                    )}
-              </span>
-            </ListboxButton>
-            <ListboxOptions className="absolute z-10 mt-1 max-h-60 w-full overflow-auto rounded-xl border-[0.5px] border-components-panel-border bg-components-panel-bg-blur px-1 py-1 text-base shadow-lg backdrop-blur-sm focus:outline-none sm:text-sm">
-              {(dynamicOptions || options || []).filter((option: { show_on?: any[] }) => {
-                if (option.show_on?.length)
-                  return option.show_on.every(showOnItem => value[showOnItem.variable] === showOnItem.value)
-                return true
-              }).map((option: { value: any, label: { [x: string]: any, en_US: any }, icon?: string }) => (
-                <ListboxOption
-                  key={option.value}
-                  value={option.value}
-                  className={({ focus }) =>
-                    cn('relative cursor-pointer select-none rounded-lg py-2 pl-3 pr-9 text-text-secondary hover:bg-state-base-hover', focus && 'bg-state-base-hover')}
-                >
-                  {({ selected }) => (
-                    <>
-                      <div className="flex items-center">
-                        {option.icon && (
-                          <img src={option.icon} alt="" className="mr-2 h-4 w-4" />
-                        )}
-                        <span className={cn('block truncate', selected && 'font-normal')}>
-                          {option.label[language] || option.label.en_US}
-                        </span>
-                      </div>
-                      {selected && (
-                        <span className="absolute inset-y-0 right-0 flex items-center pr-2 text-text-accent">
-                          <RiCheckLine className="h-4 w-4" aria-hidden="true" />
-                        </span>
-                      )}
-                    </>
-                  )}
-                </ListboxOption>
-              ))}
-            </ListboxOptions>
-          </div>
-        </Listbox>
+          isLoading={isLoadingOptions}
+          value={(varInput?.value as string[] | undefined) || []}
+          items={dynamicSelectItems}
+          onChange={handleValueChange}
+          placeholder={placeholder?.[language] || placeholder?.en_US}
+          selectedLabel={selectedLabels}
+        />
       )}
       {isShowJSONEditor && isConstant && (
-        <div className="mt-1 w-full">
-          <CodeEditor
-            title="JSON"
-            value={varInput?.value as any}
-            isExpand
-            isInNode
-            language={CodeLanguage.json}
-            onChange={handleValueChange}
-            className="w-full"
-            placeholder={<div className="whitespace-pre">{placeholder?.[language] || placeholder?.en_US}</div>}
-          />
-        </div>
+        <JsonEditorField
+          value={(varInput?.value as string) || ''}
+          onChange={handleValueChange}
+          placeholder={<div className="whitespace-pre">{placeholder?.[language] || placeholder?.en_US}</div>}
+        />
       )}
       {isAppSelector && (
         <AppSelector
@@ -581,9 +408,9 @@ const FormInputItem: FC<Props> = ({
           nodeId={nodeId}
           value={varInput?.value || []}
           onChange={value => handleVariableSelectorChange(value, variable)}
-          filterVar={getFilterVar()}
+          filterVar={getFilterVar(formState)}
           schema={schema}
-          valueTypePlaceHolder={targetVarType()}
+          valueTypePlaceHolder={getTargetVarType(formState)}
           currentTool={currentTool}
           currentProvider={currentProvider}
           isFilterFileVar={isBoolean}

web/app/components/workflow/nodes/_base/components/variable/__tests__/var-reference-picker.branches.spec.tsx

@@ -0,0 +1,226 @@
+import type { ComponentProps } from 'react'
+import type { FormOption } from '@/app/components/header/account-setting/model-provider-page/declarations'
+import type { NodeOutPutVar } from '@/app/components/workflow/types'
+import { fireEvent, screen, waitFor } from '@testing-library/react'
+import { createNode, createStartNode, resetFixtureCounters } from '@/app/components/workflow/__tests__/fixtures'
+import { renderWorkflowFlowComponent } from '@/app/components/workflow/__tests__/workflow-test-env'
+import { BlockEnum, InputVarType, VarType } from '@/app/components/workflow/types'
+import { VarType as VarKindType } from '../../../../tool/types'
+import VarReferencePicker from '../var-reference-picker'
+
+const {
+  mockFetchDynamicOptions,
+} = vi.hoisted(() => ({
+  mockFetchDynamicOptions: vi.fn(),
+}))
+
+vi.mock('@/service/use-plugins', () => ({
+  useFetchDynamicOptions: () => ({
+    mutateAsync: mockFetchDynamicOptions,
+  }),
+}))
+
+vi.mock('../var-reference-popup', () => ({
+  default: ({
+    onChange,
+  }: {
+    onChange: (value: string[], item: { variable: string, type: VarType }) => void
+  }) => (
+    <div>
+      <button onClick={() => onChange(['node-a', 'answer'], { variable: 'answer', type: VarType.string })}>select-normal</button>
+      <button onClick={() => onChange(['node-a', 'sys.query'], { variable: 'sys.query', type: VarType.string })}>select-system</button>
+    </div>
+  ),
+}))
+
+describe('VarReferencePicker branches', () => {
+  const startNode = createStartNode({
+    id: 'start-node',
+    data: {
+      title: 'Start',
+      variables: [{
+        variable: 'query',
+        label: 'Query',
+        type: InputVarType.textInput,
+        required: false,
+      }],
+    },
+  })
+  const sourceNode = createNode({
+    id: 'node-a',
+    width: 120,
+    height: 60,
+    position: { x: 120, y: 80 },
+    data: {
+      type: BlockEnum.Code,
+      title: 'Source Node',
+      outputs: {
+        answer: { type: VarType.string },
+      },
+    },
+  })
+  const currentNode = createNode({
+    id: 'node-current',
+    data: { type: BlockEnum.Code, title: 'Current Node' },
+  })
+
+  const availableVars: NodeOutPutVar[] = [{
+    nodeId: 'node-a',
+    title: 'Source Node',
+    vars: [
+      { variable: 'answer', type: VarType.string },
+    ],
+  }]
+
+  const renderPicker = (props: Partial<ComponentProps<typeof VarReferencePicker>> = {}) => {
+    const onChange = vi.fn()
+    const onOpen = vi.fn()
+
+    const result = renderWorkflowFlowComponent(
+      <div id="workflow-container" style={{ width: 800, height: 600 }}>
+        <VarReferencePicker
+          nodeId="node-current"
+          readonly={false}
+          value={[]}
+          onChange={onChange}
+          onOpen={onOpen}
+          availableNodes={[startNode, sourceNode, currentNode]}
+          availableVars={availableVars}
+          {...props}
+        />
+      </div>,
+      {
+        nodes: [startNode, sourceNode, currentNode],
+        edges: [],
+        hooksStoreProps: {},
+      },
+    )
+
+    return { ...result, onChange, onOpen }
+  }
+
+  beforeEach(() => {
+    resetFixtureCounters()
+    vi.clearAllMocks()
+    mockFetchDynamicOptions.mockResolvedValue({ options: [] as FormOption[] })
+  })
+
+  it('should toggle a custom trigger and call onOpen when opening the popup', async () => {
+    const { onOpen } = renderPicker({
+      trigger: <button>custom-trigger</button>,
+    })
+
+    fireEvent.click(screen.getByText('custom-trigger'))
+
+    expect(await screen.findByText('select-normal')).toBeInTheDocument()
+    await waitFor(() => {
+      expect(onOpen).toHaveBeenCalled()
+    })
+  })
+
+  it('should rewrite system selectors before forwarding the selection', async () => {
+    const { onChange } = renderPicker()
+
+    fireEvent.click(screen.getByTestId('var-reference-picker-trigger'))
+    fireEvent.click(await screen.findByText('select-system'))
+
+    expect(onChange).toHaveBeenCalledWith(
+      ['sys', 'query'],
+      VarKindType.constant,
+      expect.objectContaining({
+        variable: 'sys.query',
+        type: VarType.string,
+      }),
+    )
+  })
+
+  it('should clear variable-mode values to an empty selector array', () => {
+    const { onChange } = renderPicker({
+      defaultVarKindType: VarKindType.variable,
+      isSupportConstantValue: true,
+      value: ['node-a', 'answer'],
+    })
+
+    fireEvent.click(screen.getByTestId('var-reference-picker-clear'))
+
+    expect(onChange).toHaveBeenCalledWith([], VarKindType.variable)
+  })
+
+  it('should jump to the selected node when ctrl-clicking the node name', () => {
+    const { onChange } = renderPicker({
+      value: ['node-a', 'answer'],
+    })
+
+    fireEvent.click(screen.getByText('Source Node'), { ctrlKey: true })
+
+    expect(onChange).not.toHaveBeenCalled()
+  })
+
+  it('should fetch dynamic options for supported constant fields', async () => {
+    mockFetchDynamicOptions.mockResolvedValueOnce({
+      options: [{
+        value: 'dyn-1',
+        label: { en_US: 'Dynamic 1', zh_Hans: '动态 1' },
+        show_on: [],
+      }],
+    })
+
+    renderPicker({
+      currentProvider: { plugin_id: 'provider-1', name: 'provider-1' } as never,
+      currentTool: { name: 'tool-1' } as never,
+      isSupportConstantValue: true,
+      schema: {
+        variable: 'field',
+        type: 'dynamic-select',
+      } as never,
+      value: 'dyn-1',
+    })
+
+    await waitFor(() => {
+      expect(mockFetchDynamicOptions).toHaveBeenCalledTimes(1)
+    })
+  })
+
+  it('should focus the hidden control input for supported constant values', async () => {
+    const { container } = renderPicker({
+      isSupportConstantValue: true,
+      schema: {
+        type: 'text-input',
+      } as never,
+      value: 'constant-value',
+    })
+
+    fireEvent.click(screen.getByTestId('var-reference-picker-trigger'))
+
+    const hiddenInput = container.querySelector('input.sr-only') as HTMLInputElement
+    await waitFor(() => {
+      expect(document.activeElement).toBe(hiddenInput)
+    })
+  })
+
+  it('should render tooltip branches for partial paths and invalid variables without changing behavior', () => {
+    const objectVars: NodeOutPutVar[] = [{
+      nodeId: 'node-a',
+      title: 'Source Node',
+      vars: [{
+        variable: 'payload',
+        type: VarType.object,
+        children: [{ variable: 'child', type: VarType.string }],
+      }],
+    }]
+
+    const { unmount } = renderPicker({
+      availableVars: objectVars,
+      value: ['node-a', 'payload', 'child'],
+    })
+
+    expect(screen.getByText('child')).toBeInTheDocument()
+    unmount()
+
+    renderPicker({
+      value: ['missing-node', 'answer'],
+    })
+
+    expect(screen.getByText('answer')).toBeInTheDocument()
+  })
+})

web/app/components/workflow/nodes/_base/components/variable/__tests__/var-reference-picker.helpers.spec.ts

@@ -0,0 +1,236 @@
+import type { CredentialFormSchema } from '@/app/components/header/account-setting/model-provider-page/declarations'
+import type { CommonNodeType, Node, ValueSelector } from '@/app/components/workflow/types'
+import { FormTypeEnum } from '@/app/components/header/account-setting/model-provider-page/declarations'
+import { createLoopNode, createNode, createStartNode } from '@/app/components/workflow/__tests__/fixtures'
+import { BlockEnum, VarType } from '@/app/components/workflow/types'
+import {
+  getDynamicSelectSchema,
+  getHasValue,
+  getIsIterationVar,
+  getIsLoopVar,
+  getOutputVarNode,
+  getOutputVarNodeId,
+  getTooltipContent,
+  getVarDisplayName,
+  getVariableCategory,
+  getVariableMeta,
+  getWidthAllocations,
+  isShowAPartSelector,
+} from '../var-reference-picker.helpers'
+
+describe('var-reference-picker.helpers', () => {
+  it('should detect whether the picker has a variable value', () => {
+    expect(getHasValue(false, ['node-1', 'answer'])).toBe(true)
+    expect(getHasValue(true, 'constant')).toBe(false)
+    expect(getHasValue(false, [])).toBe(false)
+  })
+
+  it('should detect iteration and loop variables by parent node id', () => {
+    expect(getIsIterationVar(true, ['iter-parent', 'item'], 'iter-parent')).toBe(true)
+    expect(getIsIterationVar(true, ['iter-parent', 'value'], 'iter-parent')).toBe(false)
+    expect(getIsLoopVar(true, ['loop-parent', 'index'], 'loop-parent')).toBe(true)
+    expect(getIsLoopVar(false, ['loop-parent', 'item'], 'loop-parent')).toBe(false)
+  })
+
+  it('should resolve output variable nodes for normal, system, iteration, and loop variables', () => {
+    const startNode = createStartNode({ id: 'start-1', data: { title: 'Start Node' } })
+    const normalNode = createNode({ id: 'node-a', data: { type: BlockEnum.Code, title: 'Answer Node' } })
+    const iterationNode = createNode({ id: 'iter-parent', data: { type: BlockEnum.Iteration, title: 'Iteration Parent' } }) as Node<CommonNodeType>
+    const loopNode = createLoopNode({ id: 'loop-parent', data: { title: 'Loop Parent' } }) as Node<CommonNodeType>
+
+    expect(getOutputVarNode({
+      availableNodes: [normalNode],
+      hasValue: true,
+      isConstant: false,
+      isIterationVar: false,
+      isLoopVar: false,
+      iterationNode: null,
+      loopNode: null,
+      outputVarNodeId: 'node-a',
+      startNode,
+      value: ['node-a', 'answer'],
+    })).toMatchObject({ id: 'node-a', title: 'Answer Node' })
+
+    expect(getOutputVarNode({
+      availableNodes: [normalNode],
+      hasValue: true,
+      isConstant: false,
+      isIterationVar: false,
+      isLoopVar: false,
+      iterationNode: null,
+      loopNode: null,
+      outputVarNodeId: 'sys',
+      startNode,
+      value: ['sys', 'files'],
+    })).toEqual(startNode.data)
+
+    expect(getOutputVarNode({
+      availableNodes: [normalNode],
+      hasValue: true,
+      isConstant: false,
+      isIterationVar: true,
+      isLoopVar: false,
+      iterationNode,
+      loopNode: null,
+      outputVarNodeId: 'iter-parent',
+      startNode,
+      value: ['iter-parent', 'item'],
+    })).toEqual(iterationNode.data)
+
+    expect(getOutputVarNode({
+      availableNodes: [normalNode],
+      hasValue: true,
+      isConstant: false,
+      isIterationVar: false,
+      isLoopVar: true,
+      iterationNode: null,
+      loopNode,
+      outputVarNodeId: 'loop-parent',
+      startNode,
+      value: ['loop-parent', 'item'],
+    })).toEqual(loopNode.data)
+
+    expect(getOutputVarNode({
+      availableNodes: [normalNode],
+      hasValue: true,
+      isConstant: false,
+      isIterationVar: false,
+      isLoopVar: false,
+      iterationNode: null,
+      loopNode: null,
+      outputVarNodeId: 'missing-node',
+      startNode,
+      value: ['missing-node', 'answer'],
+    })).toBeNull()
+  })
+
+  it('should format display names and output node ids correctly', () => {
+    expect(getOutputVarNodeId(true, ['node-a', 'answer'])).toBe('node-a')
+    expect(getOutputVarNodeId(false, [])).toBe('')
+
+    expect(getVarDisplayName(true, ['sys', 'query'])).toBe('query')
+    expect(getVarDisplayName(true, ['node-a', 'answer'])).toBe('answer')
+    expect(getVarDisplayName(false, [])).toBe('')
+  })
+
+  it('should derive variable meta and category from selectors', () => {
+    const meta = getVariableMeta({ type: BlockEnum.Code }, ['env', 'API_KEY'], 'API_KEY')
+    expect(meta).toMatchObject({
+      isEnv: true,
+      isValidVar: true,
+      isException: true,
+    })
+
+    expect(getVariableCategory({
+      isChatVar: true,
+      isEnv: false,
+      isGlobal: false,
+      isLoopVar: false,
+      isRagVar: false,
+    })).toBe('conversation')
+
+    expect(getVariableCategory({
+      isChatVar: false,
+      isEnv: false,
+      isGlobal: true,
+      isLoopVar: false,
+      isRagVar: false,
+    })).toBe('global')
+
+    expect(getVariableCategory({
+      isChatVar: false,
+      isEnv: false,
+      isGlobal: false,
+      isLoopVar: true,
+      isRagVar: false,
+    })).toBe('loop')
+
+    expect(getVariableCategory({
+      isChatVar: false,
+      isEnv: true,
+      isGlobal: false,
+      isLoopVar: false,
+      isRagVar: false,
+    })).toBe('environment')
+
+    expect(getVariableCategory({
+      isChatVar: false,
+      isEnv: false,
+      isGlobal: false,
+      isLoopVar: false,
+      isRagVar: true,
+    })).toBe('rag')
+  })
+
+  it('should calculate width allocations and tooltip behavior', () => {
+    expect(getWidthAllocations(240, 'Node', 'answer', 'string')).toEqual({
+      maxNodeNameWidth: expect.any(Number),
+      maxTypeWidth: expect.any(Number),
+      maxVarNameWidth: expect.any(Number),
+    })
+
+    expect(getTooltipContent(true, true, true)).toBe('full-path')
+    expect(getTooltipContent(true, false, false)).toBe('invalid-variable')
+    expect(getTooltipContent(false, false, true)).toBeNull()
+  })
+
+  it('should produce dynamic select schemas and detect partial selectors', () => {
+    const value = 'selected'
+    const schema: Partial<CredentialFormSchema> = {
+      type: 'dynamic-select',
+    } as Partial<CredentialFormSchema>
+
+    expect(getDynamicSelectSchema({
+      dynamicOptions: [{
+        value: 'a',
+        label: { en_US: 'A', zh_Hans: 'A' },
+        show_on: [],
+      }],
+      isLoading: false,
+      schema,
+      value,
+    })).toMatchObject({
+      options: [{ value: 'a' }],
+    })
+
+    expect(getDynamicSelectSchema({
+      dynamicOptions: null,
+      isLoading: true,
+      schema,
+      value,
+    })).toMatchObject({
+      options: [{ value: 'selected' }],
+    })
+
+    expect(getDynamicSelectSchema({
+      dynamicOptions: null,
+      isLoading: false,
+      schema,
+      value,
+    })).toMatchObject({ options: [] })
+
+    expect(isShowAPartSelector(['node-a', 'payload', 'child'] as ValueSelector)).toBe(true)
+    expect(isShowAPartSelector(['rag', 'node-a', 'payload'] as ValueSelector)).toBe(false)
+  })
+
+  it('should keep mapped variable names for known workflow aliases', () => {
+    expect(getVarDisplayName(true, ['sys', 'files'])).toBe('files')
+    expect(getVariableMeta({ type: VarType.string }, ['conversation', 'name'], 'name')).toMatchObject({
+      isChatVar: true,
+      isValidVar: true,
+    })
+  })
+
+  it('should preserve non-dynamic schemas', () => {
+    const schema: Partial<CredentialFormSchema> = {
+      type: FormTypeEnum.textInput,
+    }
+
+    expect(getDynamicSelectSchema({
+      dynamicOptions: null,
+      isLoading: false,
+      schema,
+      value: '',
+    })).toEqual(schema)
+  })
+})

web/app/components/workflow/nodes/_base/components/variable/__tests__/var-reference-picker.spec.tsx

@@ -0,0 +1,140 @@
+import type { ComponentProps } from 'react'
+import type { NodeOutPutVar } from '@/app/components/workflow/types'
+import { fireEvent, screen, waitFor } from '@testing-library/react'
+import { createNode, createStartNode, resetFixtureCounters } from '@/app/components/workflow/__tests__/fixtures'
+import { renderWorkflowFlowComponent } from '@/app/components/workflow/__tests__/workflow-test-env'
+import { BlockEnum, InputVarType, VarType } from '@/app/components/workflow/types'
+import VarReferencePicker from '../var-reference-picker'
+
+describe('VarReferencePicker', () => {
+  const startNode = createStartNode({
+    id: 'start-node',
+    data: {
+      title: 'Start',
+      variables: [{
+        variable: 'query',
+        label: 'Query',
+        type: InputVarType.textInput,
+        required: false,
+      }],
+    },
+  })
+  const sourceNode = createNode({
+    id: 'node-a',
+    data: {
+      type: BlockEnum.Code,
+      title: 'Source Node',
+      outputs: {
+        answer: { type: VarType.string },
+        payload: { type: VarType.object },
+      },
+    },
+  })
+  const currentNode = createNode({
+    id: 'node-current',
+    data: { type: BlockEnum.Code, title: 'Current Node' },
+  })
+
+  const availableVars: NodeOutPutVar[] = [{
+    nodeId: 'node-a',
+    title: 'Source Node',
+    vars: [
+      { variable: 'answer', type: VarType.string },
+      {
+        variable: 'payload',
+        type: VarType.object,
+        children: [{ variable: 'child', type: VarType.string }],
+      },
+    ],
+  }]
+
+  const renderPicker = (props: Partial<ComponentProps<typeof VarReferencePicker>> = {}) => {
+    const onChange = vi.fn()
+
+    const result = renderWorkflowFlowComponent(
+      <div id="workflow-container">
+        <VarReferencePicker
+          nodeId="node-current"
+          readonly={false}
+          value={[]}
+          onChange={onChange}
+          availableNodes={[startNode, sourceNode, currentNode]}
+          availableVars={availableVars}
+          {...props}
+        />
+      </div>,
+      {
+        nodes: [startNode, sourceNode, currentNode],
+        edges: [],
+        hooksStoreProps: {},
+      },
+    )
+
+    return { ...result, onChange }
+  }
+
+  beforeEach(() => {
+    resetFixtureCounters()
+  })
+
+  it('should open the popup and select a variable from the available list', async () => {
+    const { onChange } = renderPicker()
+
+    fireEvent.click(screen.getByTestId('var-reference-picker-trigger'))
+
+    fireEvent.click(await screen.findByText('answer'))
+
+    expect(onChange).toHaveBeenCalledWith(
+      ['node-a', 'answer'],
+      'constant',
+      expect.objectContaining({
+        variable: 'answer',
+        type: VarType.string,
+      }),
+    )
+  })
+
+  it('should render the selected node and variable name, then clear it', async () => {
+    const { onChange } = renderPicker({
+      value: ['node-a', 'answer'],
+    })
+
+    expect(screen.getByText('Source Node')).toBeInTheDocument()
+    expect(screen.getByText('answer')).toBeInTheDocument()
+
+    fireEvent.click(screen.getByTestId('var-reference-picker-clear'))
+    expect(onChange).toHaveBeenCalledWith('', 'constant')
+  })
+
+  it('should show object variables in the popup and select the root object path', async () => {
+    const { onChange } = renderPicker()
+
+    fireEvent.click(screen.getByTestId('var-reference-picker-trigger'))
+    fireEvent.click(await screen.findByText('payload'))
+
+    expect(onChange).toHaveBeenCalledWith(
+      ['node-a', 'payload'],
+      'constant',
+      expect.objectContaining({
+        variable: 'payload',
+        type: VarType.object,
+      }),
+    )
+  })
+
+  it('should render a placeholder and respect readonly mode', async () => {
+    const { onChange } = renderPicker({
+      readonly: true,
+      placeholder: 'Pick a variable',
+    })
+
+    expect(screen.getByText('Pick a variable')).toBeInTheDocument()
+
+    fireEvent.click(screen.getByTestId('var-reference-picker-trigger'))
+
+    await waitFor(() => {
+      expect(screen.queryByText('answer')).not.toBeInTheDocument()
+    })
+    expect(onChange).not.toHaveBeenCalled()
+  })
+})

web/app/components/workflow/nodes/_base/components/variable/__tests__/var-reference-picker.trigger.spec.tsx

@@ -0,0 +1,176 @@
+import type { ComponentProps } from 'react'
+import { fireEvent, render, screen } from '@testing-library/react'
+import { BlockEnum, VarType } from '@/app/components/workflow/types'
+import { VarType as VarKindType } from '../../../../tool/types'
+import VarReferencePickerTrigger from '../var-reference-picker.trigger'
+
+const createProps = (
+  overrides: Partial<ComponentProps<typeof VarReferencePickerTrigger>> = {},
+): ComponentProps<typeof VarReferencePickerTrigger> => ({
+  controlFocus: 0,
+  handleClearVar: vi.fn(),
+  handleVarKindTypeChange: vi.fn(),
+  handleVariableJump: vi.fn(),
+  hasValue: false,
+  inputRef: { current: null },
+  isConstant: false,
+  isException: false,
+  isFocus: false,
+  isLoading: false,
+  isShowAPart: false,
+  isShowNodeName: true,
+  maxNodeNameWidth: 80,
+  maxTypeWidth: 60,
+  maxVarNameWidth: 80,
+  onChange: vi.fn(),
+  open: false,
+  outputVarNode: null,
+  readonly: false,
+  setControlFocus: vi.fn(),
+  setOpen: vi.fn(),
+  tooltipPopup: null,
+  triggerRef: { current: null },
+  value: [],
+  varKindType: VarKindType.constant,
+  varKindTypes: [
+    { label: 'Variable', value: VarKindType.variable },
+    { label: 'Constant', value: VarKindType.constant },
+  ],
+  varName: '',
+  variableCategory: 'system',
+  WrapElem: 'div',
+  VarPickerWrap: 'div',
+  ...overrides,
+})
+
+describe('VarReferencePickerTrigger', () => {
+  it('should show the placeholder state and open the picker for variable mode', () => {
+    const setOpen = vi.fn()
+    render(
+      <VarReferencePickerTrigger
+        {...createProps({
+          placeholder: 'Pick variable',
+          setOpen,
+        })}
+      />,
+    )
+
+    expect(screen.getByText('Pick variable')).toBeInTheDocument()
+    fireEvent.click(screen.getByTestId('var-reference-picker-trigger'))
+    expect(setOpen).toHaveBeenCalledWith(true)
+  })
+
+  it('should render the selected variable state and clear it', () => {
+    const handleClearVar = vi.fn()
+    const handleVariableJump = vi.fn()
+
+    render(
+      <VarReferencePickerTrigger
+        {...createProps({
+          handleClearVar,
+          handleVariableJump,
+          hasValue: true,
+          outputVarNode: { title: 'Source Node', desc: '', type: BlockEnum.Code },
+          outputVarNodeId: 'node-a',
+          type: VarType.string,
+          value: ['node-a', 'answer'],
+          varName: 'answer',
+        })}
+      />,
+    )
+
+    expect(screen.getByText('Source Node')).toBeInTheDocument()
+    expect(screen.getByText('answer')).toBeInTheDocument()
+
+    fireEvent.click(screen.getByText('Source Node'), { ctrlKey: true })
+    expect(handleVariableJump).toHaveBeenCalledWith('node-a')
+
+    fireEvent.click(screen.getByTestId('var-reference-picker-clear'))
+    expect(handleClearVar).toHaveBeenCalledTimes(1)
+  })
+
+  it('should render the support-constant trigger and focus constant input when clicked', () => {
+    const setControlFocus = vi.fn()
+    const setOpen = vi.fn()
+
+    render(
+      <VarReferencePickerTrigger
+        {...createProps({
+          isConstant: true,
+          isSupportConstantValue: true,
+          schemaWithDynamicSelect: {
+            type: 'text-input',
+          } as never,
+          setOpen,
+          setControlFocus,
+          value: 'constant-value',
+        })}
+      />,
+    )
+
+    fireEvent.click(screen.getByTestId('var-reference-picker-trigger'))
+    expect(setControlFocus).toHaveBeenCalledTimes(1)
+
+    fireEvent.click(screen.getByText('Constant'))
+    expect(setOpen).toHaveBeenCalledWith(false)
+  })
+
+  it('should render add button trigger in table mode', () => {
+    render(
+      <VarReferencePickerTrigger
+        {...createProps({
+          hasValue: true,
+          isAddBtnTrigger: true,
+          isInTable: true,
+          value: ['node-a', 'answer'],
+          varName: 'answer',
+        })}
+      />,
+    )
+
+    expect(document.querySelector('button')).toBeInTheDocument()
+  })
+
+  it('should stay inert in readonly mode and show value type placeholder badge', () => {
+    const setOpen = vi.fn()
+
+    render(
+      <VarReferencePickerTrigger
+        {...createProps({
+          placeholder: 'Readonly placeholder',
+          readonly: true,
+          setOpen,
+          typePlaceHolder: 'string',
+          valueTypePlaceHolder: 'text',
+        })}
+      />,
+    )
+
+    fireEvent.click(screen.getByTestId('var-reference-picker-trigger'))
+    expect(setOpen).not.toHaveBeenCalled()
+    expect(screen.getByText('string')).toBeInTheDocument()
+    expect(screen.getByText('text')).toBeInTheDocument()
+  })
+
+  it('should show loading placeholder and remove rows in table mode', () => {
+    const onRemove = vi.fn()
+
+    render(
+      <VarReferencePickerTrigger
+        {...createProps({
+          hasValue: false,
+          isInTable: true,
+          isLoading: true,
+          onRemove,
+          placeholder: 'Loading variable',
+        })}
+      />,
+    )
+
+    expect(screen.getByText('Loading variable')).toBeInTheDocument()
+
+    const buttons = screen.getAllByRole('button')
+    fireEvent.click(buttons[buttons.length - 1])
+    expect(onRemove).toHaveBeenCalledTimes(1)
+  })
+})

web/app/components/workflow/nodes/_base/components/variable/__tests__/var-reference-vars.helpers.spec.ts

@@ -0,0 +1,84 @@
+import type { NodeOutPutVar, Var } from '@/app/components/workflow/types'
+import { VarType } from '@/app/components/workflow/types'
+import {
+  filterReferenceVars,
+  getValueSelector,
+  getVariableCategory,
+  getVariableDisplayName,
+} from '../var-reference-vars.helpers'
+
+describe('var-reference-vars helpers', () => {
+  it('should derive display names for flat and mapped variables', () => {
+    expect(getVariableDisplayName('sys.files', false)).toBe('files')
+    expect(getVariableDisplayName('current', true, true)).toBe('current_code')
+    expect(getVariableDisplayName('foo', true, false)).toBe('foo')
+  })
+
+  it('should resolve variable categories', () => {
+    expect(getVariableCategory({ isEnv: true, isChatVar: false })).toBe('environment')
+    expect(getVariableCategory({ isEnv: false, isChatVar: true })).toBe('conversation')
+    expect(getVariableCategory({ isEnv: false, isChatVar: false, isLoopVar: true })).toBe('loop')
+    expect(getVariableCategory({ isEnv: false, isChatVar: false, isRagVariable: true })).toBe('rag')
+  })
+
+  it('should build selectors by variable scope and file support', () => {
+    const itemData: Var = { variable: 'output', type: VarType.string }
+    expect(getValueSelector({
+      itemData,
+      isFlat: true,
+      isSupportFileVar: true,
+      isFile: false,
+      isSys: false,
+      isEnv: false,
+      isChatVar: false,
+      nodeId: 'node-1',
+      objPath: [],
+    })).toEqual(['output'])
+
+    expect(getValueSelector({
+      itemData: { variable: 'env.apiKey', type: VarType.string },
+      isFlat: false,
+      isSupportFileVar: true,
+      isFile: false,
+      isSys: false,
+      isEnv: true,
+      isChatVar: false,
+      nodeId: 'node-1',
+      objPath: ['parent'],
+    })).toEqual(['parent', 'env', 'apiKey'])
+
+    expect(getValueSelector({
+      itemData: { variable: 'file', type: VarType.file },
+      isFlat: false,
+      isSupportFileVar: false,
+      isFile: true,
+      isSys: false,
+      isEnv: false,
+      isChatVar: false,
+      nodeId: 'node-1',
+      objPath: [],
+    })).toBeUndefined()
+  })
+
+  it('should filter out invalid vars and apply search text', () => {
+    const vars = filterReferenceVars([
+      {
+        title: 'Node A',
+        nodeId: 'node-a',
+        vars: [
+          { variable: 'valid_name', type: VarType.string },
+          { variable: 'invalid-key', type: VarType.string },
+        ],
+      },
+      {
+        title: 'Node B',
+        nodeId: 'node-b',
+        vars: [{ variable: 'another_value', type: VarType.string }],
+      },
+    ] as NodeOutPutVar[], 'another')
+
+    expect(vars).toHaveLength(1)
+    expect(vars[0].title).toBe('Node B')
+    expect(vars[0].vars).toEqual([expect.objectContaining({ variable: 'another_value' })])
+  })
+})

web/app/components/workflow/nodes/_base/components/variable/__tests__/var-reference-vars.spec.tsx

@@ -0,0 +1,226 @@
+import type { NodeOutPutVar } from '@/app/components/workflow/types'
+import { fireEvent, render, screen } from '@testing-library/react'
+import { VarType } from '@/app/components/workflow/types'
+import VarReferenceVars from '../var-reference-vars'
+
+vi.mock('../object-child-tree-panel/picker', () => ({
+  default: ({
+    onHovering,
+    onSelect,
+  }: {
+    onHovering?: (value: boolean) => void
+    onSelect?: (value: string[]) => void
+  }) => (
+    <div>
+      <button onMouseEnter={() => onHovering?.(true)} onMouseLeave={() => onHovering?.(false)}>
+        picker-panel
+      </button>
+      <button onClick={() => onSelect?.(['node-obj', 'payload', 'child'])}>pick-child</button>
+    </div>
+  ),
+}))
+
+vi.mock('../manage-input-field', () => ({
+  default: ({ onManage }: { onManage: () => void }) => <button onClick={onManage}>manage-input</button>,
+}))
+
+describe('VarReferenceVars', () => {
+  const createVars = (vars: NodeOutPutVar[]) => vars
+
+  const baseVars = createVars([{
+    title: 'Node A',
+    nodeId: 'node-a',
+    vars: [{ variable: 'valid_name', type: VarType.string }],
+  }])
+
+  it('should filter vars through the search box and call onClose on escape', () => {
+    const onClose = vi.fn()
+    render(
+      <VarReferenceVars
+        vars={baseVars}
+        onChange={vi.fn()}
+        onClose={onClose}
+      />,
+    )
+
+    fireEvent.change(screen.getByPlaceholderText('workflow.common.searchVar'), {
+      target: { value: 'valid' },
+    })
+    expect(screen.getByText('valid_name')).toBeInTheDocument()
+
+    fireEvent.keyDown(screen.getByPlaceholderText('workflow.common.searchVar'), { key: 'Escape' })
+    expect(onClose).toHaveBeenCalledTimes(1)
+  })
+
+  it('should call onChange when a variable item is chosen', () => {
+    const onChange = vi.fn()
+
+    render(
+      <VarReferenceVars
+        vars={baseVars}
+        onChange={onChange}
+      />,
+    )
+
+    fireEvent.click(screen.getByText('valid_name'))
+
+    expect(onChange).toHaveBeenCalledWith(['node-a', 'valid_name'], expect.objectContaining({
+      variable: 'valid_name',
+    }))
+  })
+
+  it('should render empty state and manage input action', () => {
+    const onManageInputField = vi.fn()
+
+    render(
+      <VarReferenceVars
+        vars={[]}
+        onChange={vi.fn()}
+        showManageInputField
+        onManageInputField={onManageInputField}
+      />,
+    )
+
+    expect(screen.getByText('workflow.common.noVar')).toBeInTheDocument()
+
+    fireEvent.click(screen.getByText('manage-input'))
+    expect(onManageInputField).toHaveBeenCalledTimes(1)
+  })
+
+  it('should render special variable labels and schema types', () => {
+    render(
+      <VarReferenceVars
+        hideSearch
+        preferSchemaType
+        vars={createVars([
+          {
+            title: 'Specials',
+            nodeId: 'node-special',
+            vars: [
+              { variable: 'env.API_KEY', type: VarType.string, schemaType: 'secret' },
+              { variable: 'conversation.user_name', type: VarType.string, des: 'User name' },
+              { variable: 'retrieval.source.title', type: VarType.string, isRagVariable: true },
+            ],
+          },
+        ])}
+        onChange={vi.fn()}
+      />,
+    )
+
+    expect(screen.queryByPlaceholderText('workflow.common.searchVar')).not.toBeInTheDocument()
+    expect(screen.getByText('API_KEY')).toBeInTheDocument()
+    expect(screen.getByText('user_name')).toBeInTheDocument()
+    expect(screen.getByText('secret')).toBeInTheDocument()
+  })
+
+  it('should render flat vars and the last output separator', () => {
+    render(
+      <VarReferenceVars
+        hideSearch
+        vars={createVars([
+          {
+            title: 'Flat',
+            nodeId: 'node-flat',
+            isFlat: true,
+            vars: [{ variable: 'current', type: VarType.string }],
+          },
+          {
+            title: 'Node B',
+            nodeId: 'node-b',
+            vars: [{ variable: 'payload', type: VarType.string }],
+          },
+        ])}
+        onChange={vi.fn()}
+      />,
+    )
+
+    expect(screen.getByText('workflow.debug.lastOutput')).toBeInTheDocument()
+    expect(screen.getByText('current_prompt')).toBeInTheDocument()
+  })
+
+  it('should resolve selectors for special variables and file support', () => {
+    const onChange = vi.fn()
+
+    render(
+      <VarReferenceVars
+        hideSearch
+        isSupportFileVar
+        vars={createVars([
+          {
+            title: 'Specials',
+            nodeId: 'node-special',
+            vars: [
+              { variable: 'env.API_KEY', type: VarType.string },
+              { variable: 'conversation.user_name', type: VarType.string, des: 'User name' },
+              { variable: 'current', type: VarType.string },
+              { variable: 'asset', type: VarType.file },
+            ],
+          },
+        ])}
+        onChange={onChange}
+      />,
+    )
+
+    fireEvent.click(screen.getByText('API_KEY'))
+    fireEvent.click(screen.getByText('user_name'))
+    fireEvent.click(screen.getByText('current'))
+    fireEvent.click(screen.getByText('asset'))
+
+    expect(onChange).toHaveBeenNthCalledWith(1, ['env', 'API_KEY'], expect.objectContaining({ variable: 'env.API_KEY' }))
+    expect(onChange).toHaveBeenNthCalledWith(2, ['conversation', 'user_name'], expect.objectContaining({ variable: 'conversation.user_name' }))
+    expect(onChange).toHaveBeenNthCalledWith(3, ['node-special', 'current'], expect.objectContaining({ variable: 'current' }))
+    expect(onChange).toHaveBeenNthCalledWith(4, ['node-special', 'asset'], expect.objectContaining({ variable: 'asset' }))
+  })
+
+  it('should render object vars and select them by node path', () => {
+    const onChange = vi.fn()
+
+    render(
+      <VarReferenceVars
+        hideSearch
+        vars={createVars([
+          {
+            title: 'Object vars',
+            nodeId: 'node-obj',
+            vars: [{
+              variable: 'payload',
+              type: VarType.object,
+              children: [{ variable: 'child', type: VarType.string }],
+            }],
+          },
+        ])}
+        onChange={onChange}
+      />,
+    )
+
+    fireEvent.click(screen.getByText('payload'))
+    expect(onChange).toHaveBeenCalledWith(['node-obj', 'payload'], expect.objectContaining({
+      variable: 'payload',
+    }))
+  })
+
+  it('should ignore file vars when file support is disabled and forward blur events', () => {
+    const onChange = vi.fn()
+    const onBlur = vi.fn()
+
+    render(
+      <VarReferenceVars
+        vars={createVars([
+          {
+            title: 'Files',
+            nodeId: 'node-files',
+            vars: [{ variable: 'asset', type: VarType.file }],
+          },
+        ])}
+        onChange={onChange}
+        onBlur={onBlur}
+      />,
+    )
+
+    fireEvent.blur(screen.getByPlaceholderText('workflow.common.searchVar'))
+    expect(onBlur).toHaveBeenCalledTimes(1)
+
+    fireEvent.click(screen.getByText('asset'))
+    expect(onChange).not.toHaveBeenCalled()
+  })
+})

web/app/components/workflow/nodes/_base/components/variable/var-reference-picker.helpers.ts

@@ -0,0 +1,221 @@
+'use client'
+
+import type { VarType as VarKindType } from '../../../tool/types'
+import type { CredentialFormSchema, FormOption } from '@/app/components/header/account-setting/model-provider-page/declarations'
+import type { CommonNodeType, Node, ValueSelector } from '@/app/components/workflow/types'
+import { VAR_SHOW_NAME_MAP } from '@/app/components/workflow/constants'
+import { getNodeInfoById, isConversationVar, isENV, isGlobalVar, isRagVariableVar, isSystemVar } from './utils'
+
+type DynamicSchemaParams = {
+  dynamicOptions: FormOption[] | null
+  isLoading: boolean
+  schema?: Partial<CredentialFormSchema>
+  value: ValueSelector | string
+}
+
+type VariableCategoryParams = {
+  isChatVar: boolean
+  isEnv: boolean
+  isGlobal: boolean
+  isLoopVar: boolean
+  isRagVar: boolean
+}
+
+type OutputVarNodeParams = {
+  availableNodes: Node[]
+  hasValue: boolean
+  isConstant: boolean
+  isIterationVar: boolean
+  isLoopVar: boolean
+  iterationNode: Node<CommonNodeType> | null
+  loopNode: Node<CommonNodeType> | null
+  outputVarNodeId: string
+  startNode?: Node | null
+  value: ValueSelector | string
+}
+
+export const getVarKindOptions = (variableLabel = 'Variable', constantLabel = 'Constant') => ([
+  { label: variableLabel, value: 'variable' as VarKindType },
+  { label: constantLabel, value: 'constant' as VarKindType },
+])
+
+export const getHasValue = (isConstant: boolean, value: ValueSelector | string) =>
+  !isConstant && value.length > 0
+
+export const getIsIterationVar = (
+  isInIteration: boolean,
+  value: ValueSelector | string,
+  parentId?: string,
+) => {
+  if (!isInIteration || !Array.isArray(value))
+    return false
+  return value[0] === parentId && ['item', 'index'].includes(value[1])
+}
+
+export const getIsLoopVar = (
+  isInLoop: boolean,
+  value: ValueSelector | string,
+  parentId?: string,
+) => {
+  if (!isInLoop || !Array.isArray(value))
+    return false
+  return value[0] === parentId && ['item', 'index'].includes(value[1])
+}
+
+export const getOutputVarNode = ({
+  availableNodes,
+  hasValue,
+  isConstant,
+  isIterationVar,
+  isLoopVar,
+  iterationNode,
+  loopNode,
+  outputVarNodeId,
+  startNode,
+  value,
+}: OutputVarNodeParams) => {
+  if (!hasValue || isConstant)
+    return null
+
+  if (isIterationVar)
+    return iterationNode?.data ?? null
+
+  if (isLoopVar)
+    return loopNode?.data ?? null
+
+  if (isSystemVar(value as ValueSelector))
+    return startNode?.data ?? null
+
+  const node = getNodeInfoById(availableNodes, outputVarNodeId)?.data
+  if (!node)
+    return null
+
+  return {
+    ...node,
+    id: outputVarNodeId,
+  }
+}
+
+export const getVarDisplayName = (
+  hasValue: boolean,
+  value: ValueSelector | string,
+) => {
+  if (!hasValue || !Array.isArray(value))
+    return ''
+
+  const showName = VAR_SHOW_NAME_MAP[value.join('.')]
+  if (showName)
+    return showName
+
+  const isSystem = isSystemVar(value)
+  const varName = value[value.length - 1] ?? ''
+  return `${isSystem ? 'sys.' : ''}${varName}`
+}
+
+export const getVariableMeta = (
+  outputVarNode: { type?: string } | null,
+  value: ValueSelector | string,
+  varName: string,
+) => {
+  const selector = value as ValueSelector
+  const isEnv = isENV(selector)
+  const isChatVar = isConversationVar(selector)
+  const isGlobal = isGlobalVar(selector)
+  const isRagVar = isRagVariableVar(selector)
+  const isValidVar = Boolean(outputVarNode) || isEnv || isChatVar || isGlobal || isRagVar
+  return {
+    isChatVar,
+    isEnv,
+    isGlobal,
+    isRagVar,
+    isValidVar,
+    isException: Boolean(varName && outputVarNode?.type),
+  }
+}
+
+export const getVariableCategory = ({
+  isChatVar,
+  isEnv,
+  isGlobal,
+  isLoopVar,
+  isRagVar,
+}: VariableCategoryParams) => {
+  if (isEnv)
+    return 'environment'
+  if (isChatVar)
+    return 'conversation'
+  if (isGlobal)
+    return 'global'
+  if (isLoopVar)
+    return 'loop'
+  if (isRagVar)
+    return 'rag'
+  return 'system'
+}
+
+export const getWidthAllocations = (
+  triggerWidth: number,
+  nodeTitle: string,
+  varName: string,
+  type: string,
+) => {
+  const availableWidth = triggerWidth - 56
+  const totalTextLength = (nodeTitle + varName + type).length || 1
+  const priorityWidth = 15
+  return {
+    maxNodeNameWidth: priorityWidth + Math.floor(nodeTitle.length / totalTextLength * availableWidth),
+    maxTypeWidth: Math.floor(type.length / totalTextLength * availableWidth),
+    maxVarNameWidth: -priorityWidth + Math.floor(varName.length / totalTextLength * availableWidth),
+  }
+}
+
+export const getDynamicSelectSchema = ({
+  dynamicOptions,
+  isLoading,
+  schema,
+  value,
+}: DynamicSchemaParams) => {
+  if (schema?.type !== 'dynamic-select')
+    return schema
+
+  if (dynamicOptions) {
+    return {
+      ...schema,
+      options: dynamicOptions,
+    }
+  }
+
+  if (isLoading && value && typeof value === 'string') {
+    return {
+      ...schema,
+      options: [{
+        value,
+        label: { en_US: value, zh_Hans: value },
+        show_on: [],
+      }],
+    }
+  }
+
+  return {
+    ...schema,
+    options: [],
+  }
+}
+
+export const getTooltipContent = (
+  hasValue: boolean,
+  isShowAPart: boolean,
+  isValidVar: boolean,
+) => {
+  if (isValidVar && isShowAPart)
+    return 'full-path'
+  if (!isValidVar && hasValue)
+    return 'invalid-variable'
+  return null
+}
+
+export const getOutputVarNodeId = (hasValue: boolean, value: ValueSelector | string) =>
+  hasValue && Array.isArray(value) ? value[0] : ''
+
+export const isShowAPartSelector = (value: ValueSelector | string) =>
+  Array.isArray(value) && value.length > 2 && !isRagVariableVar(value)

web/app/components/workflow/nodes/_base/components/variable/var-reference-picker.trigger.tsx

@@ -0,0 +1,315 @@
+'use client'
+
+import type { FC, ReactNode } from 'react'
+import type { VarType as VarKindType } from '../../../tool/types'
+import type { CredentialFormSchema, CredentialFormSchemaSelect } from '@/app/components/header/account-setting/model-provider-page/declarations'
+import type { Tool } from '@/app/components/tools/types'
+import type { TriggerWithProvider } from '@/app/components/workflow/block-selector/types'
+import type { Node, ToolWithProvider, ValueSelector, Var } from '@/app/components/workflow/types'
+import { RiArrowDownSLine, RiCloseLine, RiErrorWarningFill, RiLoader4Line, RiMoreLine } from '@remixicon/react'
+import Badge from '@/app/components/base/badge'
+import AddButton from '@/app/components/base/button/add-button'
+import { Line3 } from '@/app/components/base/icons/src/public/common'
+import { Variable02 } from '@/app/components/base/icons/src/vender/solid/development'
+import { Tooltip, TooltipContent, TooltipTrigger } from '@/app/components/base/ui/tooltip'
+import TypeSelector from '@/app/components/workflow/nodes/_base/components/selector'
+import { VariableIconWithColor } from '@/app/components/workflow/nodes/_base/components/variable/variable-label'
+import { cn } from '@/utils/classnames'
+import RemoveButton from '../remove-button'
+import ConstantField from './constant-field'
+
+type Props = {
+  className?: string
+  controlFocus: number
+  currentProvider?: ToolWithProvider | TriggerWithProvider
+  currentTool?: Tool
+  handleClearVar: () => void
+  handleVarKindTypeChange: (value: VarKindType) => void
+  handleVariableJump: (nodeId: string) => void
+  hasValue: boolean
+  inputRef: React.RefObject<HTMLInputElement | null>
+  inTable?: boolean
+  isAddBtnTrigger?: boolean
+  isConstant: boolean
+  isException: boolean
+  isFocus: boolean
+  isInTable?: boolean
+  isJustShowValue?: boolean
+  isLoading: boolean
+  isShowAPart: boolean
+  isShowNodeName: boolean
+  isSupportConstantValue?: boolean
+  maxNodeNameWidth: number
+  maxTypeWidth: number
+  maxVarNameWidth: number
+  onChange: (value: ValueSelector | string, varKindType: VarKindType, varInfo?: Var) => void
+  onRemove?: () => void
+  open: boolean
+  outputVarNode?: Node['data'] | null
+  outputVarNodeId?: string
+  placeholder?: string
+  readonly: boolean
+  schemaWithDynamicSelect?: Partial<CredentialFormSchema>
+  setControlFocus: (value: number) => void
+  setOpen: (value: boolean) => void
+  tooltipPopup: ReactNode
+  triggerRef: React.RefObject<HTMLDivElement | null>
+  type?: string
+  typePlaceHolder?: string
+  value: ValueSelector | string
+  valueTypePlaceHolder?: string
+  varKindType: VarKindType
+  varKindTypes: Array<{ label: string, value: VarKindType }>
+  varName: string
+  variableCategory: string
+  WrapElem: React.ElementType
+  VarPickerWrap: React.ElementType
+}
+
+const VarReferencePickerTrigger: FC<Props> = ({
+  className,
+  controlFocus,
+  handleClearVar,
+  handleVarKindTypeChange,
+  handleVariableJump,
+  hasValue,
+  inputRef,
+  isAddBtnTrigger,
+  isConstant,
+  isException,
+  isFocus,
+  isInTable,
+  isJustShowValue,
+  isLoading,
+  isShowAPart,
+  isShowNodeName,
+  isSupportConstantValue,
+  maxNodeNameWidth,
+  maxTypeWidth,
+  maxVarNameWidth,
+  onChange,
+  onRemove,
+  open,
+  outputVarNode,
+  outputVarNodeId,
+  placeholder,
+  readonly,
+  schemaWithDynamicSelect,
+  setControlFocus,
+  setOpen,
+  tooltipPopup,
+  triggerRef,
+  type,
+  typePlaceHolder,
+  value,
+  valueTypePlaceHolder,
+  varKindType,
+  varKindTypes,
+  varName,
+  variableCategory,
+  VarPickerWrap,
+  WrapElem,
+}) => {
+  return (
+    <WrapElem
+      onClick={() => {
+        if (readonly)
+          return
+        if (!isConstant)
+          setOpen(!open)
+        else
+          setControlFocus(Date.now())
+      }}
+      className={cn(className, 'group/picker-trigger-wrap relative !flex', !readonly && 'cursor-pointer')}
+      data-testid="var-reference-picker-trigger"
+    >
+      <>
+        {isAddBtnTrigger
+          ? (
+              <div>
+                <AddButton onClick={() => {}}></AddButton>
+              </div>
+            )
+          : (
+              <div ref={!isSupportConstantValue ? triggerRef : null} className={cn((open || isFocus) ? 'border-gray-300' : 'border-gray-100', 'group/wrap relative flex h-8 w-full items-center', !isSupportConstantValue && 'rounded-lg bg-components-input-bg-normal p-1', isInTable && 'border-none bg-transparent', readonly && 'bg-components-input-bg-disabled', isJustShowValue && 'h-6 bg-transparent p-0')}>
+                {isSupportConstantValue
+                  ? (
+                      <div
+                        onClick={(e) => {
+                          e.stopPropagation()
+                          setOpen(false)
+                          setControlFocus(Date.now())
+                        }}
+                        className="mr-1 flex h-full items-center space-x-1"
+                      >
+                        <TypeSelector
+                          noLeft
+                          trigger={(
+                            <div className="flex h-8 items-center bg-components-input-bg-normal px-2 radius-md">
+                              <div className="mr-1 text-components-input-text-filled system-sm-regular">{varKindTypes.find(item => item.value === varKindType)?.label}</div>
+                              <RiArrowDownSLine className="h-4 w-4 text-text-quaternary" />
+                            </div>
+                          )}
+                          popupClassName="top-8"
+                          readonly={readonly}
+                          value={varKindType}
+                          options={varKindTypes}
+                          onChange={handleVarKindTypeChange}
+                          showChecked
+                        />
+                      </div>
+                    )
+                  : (!hasValue && (
+                      <div className="ml-1.5 mr-1">
+                        <Variable02 className={`h-4 w-4 ${readonly ? 'text-components-input-text-disabled' : 'text-components-input-text-placeholder'}`} />
+                      </div>
+                    ))}
+                {isConstant
+                  ? (
+                      <ConstantField
+                        value={value as string}
+                        onChange={onChange as ((value: string | number, varKindType: VarKindType, varInfo?: Var) => void)}
+                        schema={schemaWithDynamicSelect as CredentialFormSchemaSelect}
+                        readonly={readonly}
+                        isLoading={isLoading}
+                      />
+                    )
+                  : (
+                      <VarPickerWrap
+                        onClick={() => {
+                          if (readonly)
+                            return
+                          if (!isConstant)
+                            setOpen(!open)
+                          else
+                            setControlFocus(Date.now())
+                        }}
+                        className="h-full grow"
+                      >
+                        <div ref={isSupportConstantValue ? triggerRef : null} className={cn('h-full', isSupportConstantValue && 'flex items-center rounded-lg bg-components-panel-bg py-1 pl-1')}>
+                          <Tooltip>
+                            <TooltipTrigger
+                              disabled={!tooltipPopup}
+                              render={(
+                                <div className={cn('h-full items-center rounded-[5px] px-1.5', hasValue ? 'inline-flex bg-components-badge-white-to-dark' : 'flex')}>
+                                  {hasValue
+                                    ? (
+                                        <>
+                                          {isShowNodeName && (
+                                            <div
+                                              className="flex items-center"
+                                              onClick={(e) => {
+                                                if (e.metaKey || e.ctrlKey)
+                                                  handleVariableJump(outputVarNodeId || '')
+                                              }}
+                                            >
+                                              <div className="h-3 px-[1px]">
+                                                {'type' in (outputVarNode || {}) && outputVarNode?.type && (
+                                                  <div className="h-3 w-3" />
+                                                )}
+                                              </div>
+                                              <div
+                                                className="mx-0.5 truncate text-xs font-medium text-text-secondary"
+                                                title={outputVarNode?.title as string | undefined}
+                                                style={{ maxWidth: maxNodeNameWidth }}
+                                              >
+                                                {outputVarNode?.title as string | undefined}
+                                              </div>
+                                              <Line3 className="mr-0.5"></Line3>
+                                            </div>
+                                          )}
+                                          {isShowAPart && (
+                                            <div className="flex items-center">
+                                              <RiMoreLine className="h-3 w-3 text-text-secondary" />
+                                              <Line3 className="mr-0.5 text-divider-deep"></Line3>
+                                            </div>
+                                          )}
+                                          <div className="flex items-center text-text-accent">
+                                            {isLoading && <RiLoader4Line className="h-3.5 w-3.5 animate-spin text-text-secondary" />}
+                                            <VariableIconWithColor
+                                              variables={value as ValueSelector}
+                                              variableCategory={variableCategory}
+                                              isExceptionVariable={isException}
+                                            />
+                                            <div
+                                              className={cn('ml-0.5 truncate text-xs font-medium', isException && 'text-text-warning')}
+                                              title={varName}
+                                              style={{ maxWidth: maxVarNameWidth }}
+                                            >
+                                              {varName}
+                                            </div>
+                                          </div>
+                                          <div
+                                            className="ml-0.5 truncate text-center capitalize text-text-tertiary system-xs-regular"
+                                            title={type}
+                                            style={{ maxWidth: maxTypeWidth }}
+                                          >
+                                            {type}
+                                          </div>
+                                          {!('title' in (outputVarNode || {})) && <RiErrorWarningFill className="ml-0.5 h-3 w-3 text-text-destructive" />}
+                                        </>
+                                      )
+                                    : (
+                                        <div className={`overflow-hidden ${readonly ? 'text-components-input-text-disabled' : 'text-components-input-text-placeholder'} text-ellipsis system-sm-regular`}>
+                                          {isLoading
+                                            ? (
+                                                <div className="flex items-center">
+                                                  <RiLoader4Line className="mr-1 h-3.5 w-3.5 animate-spin text-text-secondary" />
+                                                  <span>{placeholder}</span>
+                                                </div>
+                                              )
+                                            : placeholder}
+                                        </div>
+                                      )}
+                                </div>
+                              )}
+                            />
+                            {tooltipPopup !== null && tooltipPopup !== undefined && (
+                              <TooltipContent variant="plain">
+                                {tooltipPopup}
+                              </TooltipContent>
+                            )}
+                          </Tooltip>
+                        </div>
+
+                      </VarPickerWrap>
+                    )}
+                {(hasValue && !readonly && !isInTable && !isJustShowValue) && (
+                  <div
+                    className="group invisible absolute right-1 top-[50%] h-5 translate-y-[-50%] cursor-pointer rounded-md p-1 hover:bg-state-base-hover group-hover/wrap:visible"
+                    onClick={handleClearVar}
+                    data-testid="var-reference-picker-clear"
+                  >
+                    <RiCloseLine className="h-3.5 w-3.5 text-text-tertiary group-hover:text-text-secondary" />
+                  </div>
+                )}
+                {!hasValue && valueTypePlaceHolder && (
+                  <Badge
+                    className="absolute right-1 top-[50%] translate-y-[-50%] capitalize"
+                    text={valueTypePlaceHolder}
+                    uppercase={false}
+                  />
+                )}
+              </div>
+            )}
+        {!readonly && isInTable && (
+          <RemoveButton
+            className="absolute right-1 top-0.5 hidden group-hover/picker-trigger-wrap:block"
+            onClick={() => onRemove?.()}
+          />
+        )}
+
+        {!hasValue && typePlaceHolder && (
+          <Badge
+            className="absolute right-2 top-1.5"
+            text={typePlaceHolder}
+            uppercase={false}
+          />
+        )}
+      </>
+      <input ref={inputRef} className="sr-only" value={controlFocus} readOnly />
+    </WrapElem>
+  )
+}
+
+export default VarReferencePickerTrigger

web/app/components/workflow/nodes/_base/components/variable/var-reference-picker.tsx

@@ -4,13 +4,6 @@ import type { CredentialFormSchema, CredentialFormSchemaSelect, FormOption } fro
 import type { Tool } from '@/app/components/tools/types'
 import type { TriggerWithProvider } from '@/app/components/workflow/block-selector/types'
 import type { CommonNodeType, Node, NodeOutPutVar, ToolWithProvider, ValueSelector, Var } from '@/app/components/workflow/types'
-import {
-  RiArrowDownSLine,
-  RiCloseLine,
-  RiErrorWarningFill,
-  RiLoader4Line,
-  RiMoreLine,
-} from '@remixicon/react'
 import { noop } from 'es-toolkit/function'
 import { produce } from 'immer'
 import * as React from 'react'
@@ -21,36 +14,41 @@ import {
   useReactFlow,
   useStoreApi,
 } from 'reactflow'
-import Badge from '@/app/components/base/badge'
-import AddButton from '@/app/components/base/button/add-button'
-import { Line3 } from '@/app/components/base/icons/src/public/common'
-import { Variable02 } from '@/app/components/base/icons/src/vender/solid/development'
 import {
   PortalToFollowElem,
   PortalToFollowElemContent,
   PortalToFollowElemTrigger,
 } from '@/app/components/base/portal-to-follow-elem'
-import Tooltip from '@/app/components/base/tooltip'
 import { FormTypeEnum } from '@/app/components/header/account-setting/model-provider-page/declarations'
-import { VarBlockIcon } from '@/app/components/workflow/block-icon'
-import { VAR_SHOW_NAME_MAP } from '@/app/components/workflow/constants'
 import {
   useIsChatMode,
   useWorkflowVariables,
 } from '@/app/components/workflow/hooks'
 // import type { BaseResource, BaseResourceProvider } from '@/app/components/workflow/nodes/_base/types'
-import TypeSelector from '@/app/components/workflow/nodes/_base/components/selector'
-import { VariableIconWithColor } from '@/app/components/workflow/nodes/_base/components/variable/variable-label'
 import { VarType as VarKindType } from '@/app/components/workflow/nodes/tool/types'
 import { BlockEnum } from '@/app/components/workflow/types'
 import { isExceptionVariable } from '@/app/components/workflow/utils'
 import { useFetchDynamicOptions } from '@/service/use-plugins'
 import { cn } from '@/utils/classnames'
 import useAvailableVarList from '../../hooks/use-available-var-list'
-import RemoveButton from '../remove-button'
-import ConstantField from './constant-field'
-import { getNodeInfoById, isConversationVar, isENV, isGlobalVar, isRagVariableVar, isSystemVar, removeFileVars, varTypeToStructType } from './utils'
+import { removeFileVars, varTypeToStructType } from './utils'
 import VarFullPathPanel from './var-full-path-panel'
+import {
+  getDynamicSelectSchema,
+  getHasValue,
+  getIsIterationVar,
+  getIsLoopVar,
+  getOutputVarNode,
+  getOutputVarNodeId,
+  getTooltipContent,
+  getVarDisplayName,
+  getVariableCategory,
+  getVariableMeta,
+  getVarKindOptions,
+  getWidthAllocations,
+  isShowAPartSelector,
+} from './var-reference-picker.helpers'
+import VarReferencePickerTrigger from './var-reference-picker.trigger'
 import VarReferencePopup from './var-reference-popup'
 
 const TRIGGER_DEFAULT_WIDTH = 227
@@ -141,17 +139,17 @@ const VarReferencePicker: FC<Props> = ({
 
   const node = nodes.find(n => n.id === nodeId)
   const isInIteration = !!(node?.data as any)?.isInIteration
-  const iterationNode = isInIteration ? nodes.find(n => n.id === node?.parentId) : null
+  const iterationNode = isInIteration ? (nodes.find(n => n.id === node?.parentId) ?? null) : null
 
   const isInLoop = !!(node?.data as any)?.isInLoop
-  const loopNode = isInLoop ? nodes.find(n => n.id === node?.parentId) : null
+  const loopNode = isInLoop ? (nodes.find(n => n.id === node?.parentId) ?? null) : null
 
   const triggerRef = useRef<HTMLDivElement>(null)
   const [triggerWidth, setTriggerWidth] = useState(TRIGGER_DEFAULT_WIDTH)
   useEffect(() => {
     if (triggerRef.current)
       setTriggerWidth(triggerRef.current.clientWidth)
-  }, [triggerRef.current])
+  }, [])
 
   const [varKindType, setVarKindType] = useState<VarKindType>(defaultVarKindType)
   const isConstant = isSupportConstantValue && varKindType === VarKindType.constant
@@ -164,72 +162,41 @@ const VarReferencePicker: FC<Props> = ({
   const [open, setOpen] = useState(false)
   useEffect(() => {
     onOpen()
-  }, [open])
-  const hasValue = !isConstant && value.length > 0
+  }, [open, onOpen])
+  const hasValue = getHasValue(!!isConstant, value)
 
-  const isIterationVar = useMemo(() => {
-    if (!isInIteration)
-      return false
-    if (value[0] === node?.parentId && ['item', 'index'].includes(value[1]))
-      return true
-    return false
-  }, [isInIteration, value, node])
+  const isIterationVar = useMemo(
+    () => getIsIterationVar(isInIteration, value, node?.parentId),
+    [isInIteration, node?.parentId, value],
+  )
 
-  const isLoopVar = useMemo(() => {
-    if (!isInLoop)
-      return false
-    if (value[0] === node?.parentId && ['item', 'index'].includes(value[1]))
-      return true
-    return false
-  }, [isInLoop, value, node])
+  const isLoopVar = useMemo(
+    () => getIsLoopVar(isInLoop, value, node?.parentId),
+    [isInLoop, node?.parentId, value],
+  )
 
-  const outputVarNodeId = hasValue ? value[0] : ''
-  const outputVarNode = useMemo(() => {
-    if (!hasValue || isConstant)
-      return null
+  const outputVarNodeId = getOutputVarNodeId(hasValue, value)
+  const outputVarNode = useMemo(() => getOutputVarNode({
+    availableNodes,
+    hasValue,
+    isConstant: !!isConstant,
+    isIterationVar,
+    isLoopVar,
+    iterationNode,
+    loopNode,
+    outputVarNodeId,
+    startNode,
+    value,
+  }), [availableNodes, hasValue, isConstant, isIterationVar, isLoopVar, iterationNode, loopNode, outputVarNodeId, startNode, value])
 
-    if (isIterationVar)
-      return iterationNode?.data
+  const isShowAPart = isShowAPartSelector(value)
 
-    if (isLoopVar)
-      return loopNode?.data
+  const varName = useMemo(
+    () => getVarDisplayName(hasValue, value),
+    [hasValue, value],
+  )
 
-    if (isSystemVar(value as ValueSelector))
-      return startNode?.data
-
-    const node = getNodeInfoById(availableNodes, outputVarNodeId)?.data
-    if (node) {
-      return {
-        ...node,
-        id: outputVarNodeId,
-      }
-    }
-  }, [value, hasValue, isConstant, isIterationVar, iterationNode, availableNodes, outputVarNodeId, startNode, isLoopVar, loopNode])
-
-  const isShowAPart = (value as ValueSelector).length > 2 && !isRagVariableVar((value as ValueSelector))
-
-  const varName = useMemo(() => {
-    if (!hasValue)
-      return ''
-    const showName = VAR_SHOW_NAME_MAP[(value as ValueSelector).join('.')]
-    if (showName)
-      return showName
-
-    const isSystem = isSystemVar(value as ValueSelector)
-    const varName = Array.isArray(value) ? value[(value as ValueSelector).length - 1] : ''
-    return `${isSystem ? 'sys.' : ''}${varName}`
-  }, [hasValue, value])
-
-  const varKindTypes = [
-    {
-      label: 'Variable',
-      value: VarKindType.variable,
-    },
-    {
-      label: 'Constant',
-      value: VarKindType.constant,
-    },
-  ]
+  const varKindTypes = getVarKindOptions()
 
   const handleVarKindTypeChange = useCallback((value: VarKindType) => {
     setVarKindType(value)
@@ -302,39 +269,28 @@ const VarReferencePicker: FC<Props> = ({
     preferSchemaType,
   })
 
-  const { isEnv, isChatVar, isGlobal, isRagVar, isValidVar, isException } = useMemo(() => {
-    const isEnv = isENV(value as ValueSelector)
-    const isChatVar = isConversationVar(value as ValueSelector)
-    const isGlobal = isGlobalVar(value as ValueSelector)
-    const isRagVar = isRagVariableVar(value as ValueSelector)
-    const isValidVar = Boolean(outputVarNode) || isEnv || isChatVar || isGlobal || isRagVar
-    const isException = isExceptionVariable(varName, outputVarNode?.type)
-    return {
-      isEnv,
-      isChatVar,
-      isGlobal,
-      isRagVar,
-      isValidVar,
-      isException,
-    }
-  }, [value, outputVarNode, varName])
+  const { isEnv, isChatVar, isGlobal, isRagVar, isValidVar } = useMemo(
+    () => getVariableMeta(outputVarNode, value, varName),
+    [outputVarNode, value, varName],
+  )
+  const isException = useMemo(
+    () => isExceptionVariable(varName, outputVarNode?.type),
+    [outputVarNode?.type, varName],
+  )
 
   // 8(left/right-padding) + 14(icon) + 4 + 14 + 2 = 42 + 17 buff
-  const availableWidth = triggerWidth - 56
-  const [maxNodeNameWidth, maxVarNameWidth, maxTypeWidth] = (() => {
-    const totalTextLength = ((outputVarNode?.title || '') + (varName || '') + (type || '')).length
-    const PRIORITY_WIDTH = 15
-    const maxNodeNameWidth = PRIORITY_WIDTH + Math.floor((outputVarNode?.title?.length || 0) / totalTextLength * availableWidth)
-    const maxVarNameWidth = -PRIORITY_WIDTH + Math.floor((varName?.length || 0) / totalTextLength * availableWidth)
-    const maxTypeWidth = Math.floor((type?.length || 0) / totalTextLength * availableWidth)
-    return [maxNodeNameWidth, maxVarNameWidth, maxTypeWidth]
-  })()
+  const {
+    maxNodeNameWidth,
+    maxTypeWidth,
+    maxVarNameWidth,
+  } = getWidthAllocations(triggerWidth, outputVarNode?.title || '', varName || '', type || '')
 
   const WrapElem = isSupportConstantValue ? 'div' : PortalToFollowElemTrigger
   const VarPickerWrap = !isSupportConstantValue ? 'div' : PortalToFollowElemTrigger
 
   const tooltipPopup = useMemo(() => {
-    if (isValidVar && isShowAPart) {
+    const tooltipType = getTooltipContent(hasValue, isShowAPart, isValidVar)
+    if (tooltipType === 'full-path') {
       return (
         <VarFullPathPanel
           nodeName={outputVarNode?.title}
@@ -344,7 +300,7 @@ const VarReferencePicker: FC<Props> = ({
         />
       )
     }
-    if (!isValidVar && hasValue)
+    if (tooltipType === 'invalid-variable')
       return t('errorMsg.invalidVariable', { ns: 'workflow' })
 
     return null
@@ -359,7 +315,7 @@ const VarReferencePicker: FC<Props> = ({
     (schema as CredentialFormSchemaSelect)?.variable || '',
     'tool',
   )
-  const handleFetchDynamicOptions = async () => {
+  const handleFetchDynamicOptions = useCallback(async () => {
     if (schema?.type !== FormTypeEnum.dynamicSelect || !currentTool || !currentProvider)
       return
     setIsLoading(true)
@@ -370,58 +326,25 @@ const VarReferencePicker: FC<Props> = ({
     finally {
       setIsLoading(false)
     }
-  }
+  }, [currentProvider, currentTool, fetchDynamicOptions, schema?.type])
   useEffect(() => {
     handleFetchDynamicOptions()
-  }, [currentTool, currentProvider, schema])
+  }, [handleFetchDynamicOptions])
 
-  const schemaWithDynamicSelect = useMemo(() => {
-    if (schema?.type !== FormTypeEnum.dynamicSelect)
-      return schema
-    // rewrite schema.options with dynamicOptions
-    if (dynamicOptions) {
-      return {
-        ...schema,
-        options: dynamicOptions,
-      }
-    }
+  const schemaWithDynamicSelect = useMemo(
+    () => getDynamicSelectSchema({ dynamicOptions, isLoading, schema, value }),
+    [dynamicOptions, isLoading, schema, value],
+  )
 
-    // If we don't have dynamic options but we have a selected value, create a temporary option to preserve the selection during loading
-    if (isLoading && value && typeof value === 'string') {
-      const preservedOptions = [{
-        value,
-        label: { en_US: value, zh_Hans: value },
-        show_on: [],
-      }]
-      return {
-        ...schema,
-        options: preservedOptions,
-      }
-    }
+  const variableCategory = useMemo(
+    () => getVariableCategory({ isChatVar, isEnv, isGlobal, isLoopVar, isRagVar }),
+    [isChatVar, isEnv, isGlobal, isLoopVar, isRagVar],
+  )
 
-    // Default case: return schema with empty options
-    return {
-      ...schema,
-      options: [],
-    }
-  }, [schema, dynamicOptions, isLoading, value])
-
-  const variableCategory = useMemo(() => {
-    if (isEnv)
-      return 'environment'
-    if (isChatVar)
-      return 'conversation'
-    if (isGlobal)
-      return 'global'
-    if (isLoopVar)
-      return 'loop'
-    if (isRagVar)
-      return 'rag'
-    return 'system'
-  }, [isEnv, isChatVar, isGlobal, isLoopVar, isRagVar])
+  const triggerPlaceholder = placeholder ?? t('common.setVarValuePlaceholder', { ns: 'workflow' })
 
   return (
-    <div className={cn(className, !readonly && 'cursor-pointer')}>
+    <div className={cn(className)}>
       <PortalToFollowElem
         open={open}
         onOpenChange={setOpen}
@@ -429,204 +352,52 @@ const VarReferencePicker: FC<Props> = ({
       >
         {!!trigger && <PortalToFollowElemTrigger onClick={() => setOpen(!open)}>{trigger}</PortalToFollowElemTrigger>}
         {!trigger && (
-          <WrapElem
-            onClick={() => {
-              if (readonly)
-                return
-              if (!isConstant)
-                setOpen(!open)
-              else
-                setControlFocus(Date.now())
-            }}
-            className="group/picker-trigger-wrap relative !flex"
-          >
-            <>
-              {isAddBtnTrigger
-                ? (
-                    <div>
-                      <AddButton onClick={noop}></AddButton>
-                    </div>
-                  )
-                : (
-                    <div ref={!isSupportConstantValue ? triggerRef : null} className={cn((open || isFocus) ? 'border-gray-300' : 'border-gray-100', 'group/wrap relative flex h-8 w-full items-center', !isSupportConstantValue && 'rounded-lg bg-components-input-bg-normal p-1', isInTable && 'border-none bg-transparent', readonly && 'bg-components-input-bg-disabled', isJustShowValue && 'h-6 bg-transparent p-0')}>
-                      {isSupportConstantValue
-                        ? (
-                            <div
-                              onClick={(e) => {
-                                e.stopPropagation()
-                                setOpen(false)
-                                setControlFocus(Date.now())
-                              }}
-                              className="mr-1 flex h-full items-center space-x-1"
-                            >
-                              <TypeSelector
-                                noLeft
-                                trigger={(
-                                  <div className="radius-md flex h-8 items-center bg-components-input-bg-normal px-2">
-                                    <div className="system-sm-regular mr-1 text-components-input-text-filled">{varKindTypes.find(item => item.value === varKindType)?.label}</div>
-                                    <RiArrowDownSLine className="h-4 w-4 text-text-quaternary" />
-                                  </div>
-                                )}
-                                popupClassName="top-8"
-                                readonly={readonly}
-                                value={varKindType}
-                                options={varKindTypes}
-                                onChange={handleVarKindTypeChange}
-                                showChecked
-                              />
-                            </div>
-                          )
-                        : (!hasValue && (
-                            <div className="ml-1.5 mr-1">
-                              <Variable02 className={`h-4 w-4 ${readonly ? 'text-components-input-text-disabled' : 'text-components-input-text-placeholder'}`} />
-                            </div>
-                          ))}
-                      {isConstant
-                        ? (
-                            <ConstantField
-                              value={value as string}
-                              onChange={onChange as ((value: string | number, varKindType: VarKindType, varInfo?: Var) => void)}
-                              schema={schemaWithDynamicSelect as CredentialFormSchema}
-                              readonly={readonly}
-                              isLoading={isLoading}
-                            />
-                          )
-                        : (
-                            <VarPickerWrap
-                              onClick={() => {
-                                if (readonly)
-                                  return
-                                if (!isConstant)
-                                  setOpen(!open)
-                                else
-                                  setControlFocus(Date.now())
-                              }}
-                              className="h-full grow"
-                            >
-                              <div ref={isSupportConstantValue ? triggerRef : null} className={cn('h-full', isSupportConstantValue && 'flex items-center rounded-lg bg-components-panel-bg py-1 pl-1')}>
-                                <Tooltip noDecoration={isShowAPart} popupContent={tooltipPopup}>
-                                  <div className={cn('h-full items-center rounded-[5px] px-1.5', hasValue ? 'inline-flex bg-components-badge-white-to-dark' : 'flex')}>
-                                    {hasValue
-                                      ? (
-                                          <>
-                                            {isShowNodeName && !isEnv && !isChatVar && !isGlobal && !isRagVar && (
-                                              <div
-                                                className="flex items-center"
-                                                onClick={(e) => {
-                                                  if (e.metaKey || e.ctrlKey) {
-                                                    e.stopPropagation()
-                                                    handleVariableJump(outputVarNode?.id)
-                                                  }
-                                                }}
-                                              >
-                                                <div className="h-3 px-[1px]">
-                                                  {outputVarNode?.type && (
-                                                    <VarBlockIcon
-                                                      className="!text-text-primary"
-                                                      type={outputVarNode.type}
-                                                    />
-                                                  )}
-                                                </div>
-                                                <div
-                                                  className="mx-0.5 truncate text-xs font-medium text-text-secondary"
-                                                  title={outputVarNode?.title}
-                                                  style={{
-                                                    maxWidth: maxNodeNameWidth,
-                                                  }}
-                                                >
-                                                  {outputVarNode?.title}
-                                                </div>
-                                                <Line3 className="mr-0.5"></Line3>
-                                              </div>
-                                            )}
-                                            {isShowAPart && (
-                                              <div className="flex items-center">
-                                                <RiMoreLine className="h-3 w-3 text-text-secondary" />
-                                                <Line3 className="mr-0.5 text-divider-deep"></Line3>
-                                              </div>
-                                            )}
-                                            <div className="flex items-center text-text-accent">
-                                              {isLoading && <RiLoader4Line className="h-3.5 w-3.5 animate-spin text-text-secondary" />}
-                                              <VariableIconWithColor
-                                                variables={value as ValueSelector}
-                                                variableCategory={variableCategory}
-                                                isExceptionVariable={isException}
-                                              />
-                                              <div
-                                                className={cn('ml-0.5 truncate text-xs font-medium', isEnv && '!text-text-secondary', isChatVar && 'text-util-colors-teal-teal-700', isException && 'text-text-warning', isGlobal && 'text-util-colors-orange-orange-600')}
-                                                title={varName}
-                                                style={{
-                                                  maxWidth: maxVarNameWidth,
-                                                }}
-                                              >
-                                                {varName}
-                                              </div>
-                                            </div>
-                                            <div
-                                              className="system-xs-regular ml-0.5 truncate text-center capitalize text-text-tertiary"
-                                              title={type}
-                                              style={{
-                                                maxWidth: maxTypeWidth,
-                                              }}
-                                            >
-                                              {type}
-                                            </div>
-                                            {!isValidVar && <RiErrorWarningFill className="ml-0.5 h-3 w-3 text-text-destructive" />}
-                                          </>
-                                        )
-                                      : (
-                                          <div className={`overflow-hidden ${readonly ? 'text-components-input-text-disabled' : 'text-components-input-text-placeholder'} system-sm-regular text-ellipsis`}>
-                                            {isLoading
-                                              ? (
-                                                  <div className="flex items-center">
-                                                    <RiLoader4Line className="mr-1 h-3.5 w-3.5 animate-spin text-text-secondary" />
-                                                    <span>{placeholder ?? t('common.setVarValuePlaceholder', { ns: 'workflow' })}</span>
-                                                  </div>
-                                                )
-                                              : (
-                                                  placeholder ?? t('common.setVarValuePlaceholder', { ns: 'workflow' })
-                                                )}
-                                          </div>
-                                        )}
-                                  </div>
-                                </Tooltip>
-                              </div>
-
-                            </VarPickerWrap>
-                          )}
-                      {(hasValue && !readonly && !isInTable && !isJustShowValue) && (
-                        <div
-                          className="group invisible absolute right-1 top-[50%] h-5 translate-y-[-50%] cursor-pointer rounded-md p-1 hover:bg-state-base-hover group-hover/wrap:visible"
-                          onClick={handleClearVar}
-                        >
-                          <RiCloseLine className="h-3.5 w-3.5 text-text-tertiary group-hover:text-text-secondary" />
-                        </div>
-                      )}
-                      {!hasValue && valueTypePlaceHolder && (
-                        <Badge
-                          className=" absolute right-1 top-[50%] translate-y-[-50%] capitalize"
-                          text={valueTypePlaceHolder}
-                          uppercase={false}
-                        />
-                      )}
-                    </div>
-                  )}
-              {!readonly && isInTable && (
-                <RemoveButton
-                  className="absolute right-1 top-0.5 hidden group-hover/picker-trigger-wrap:block"
-                  onClick={() => onRemove?.()}
-                />
-              )}
-
-              {!hasValue && typePlaceHolder && (
-                <Badge
-                  className="absolute right-2 top-1.5"
-                  text={typePlaceHolder}
-                  uppercase={false}
-                />
-              )}
-            </>
-          </WrapElem>
+          <VarReferencePickerTrigger
+            className={className}
+            controlFocus={controlFocus}
+            currentProvider={currentProvider}
+            currentTool={currentTool}
+            handleClearVar={handleClearVar}
+            handleVarKindTypeChange={handleVarKindTypeChange}
+            handleVariableJump={handleVariableJump}
+            hasValue={hasValue}
+            inputRef={inputRef}
+            isAddBtnTrigger={isAddBtnTrigger}
+            isConstant={!!isConstant}
+            isException={isException}
+            isFocus={isFocus}
+            isInTable={isInTable}
+            isJustShowValue={isJustShowValue}
+            isLoading={isLoading}
+            isShowAPart={isShowAPart}
+            isShowNodeName={isShowNodeName && !isEnv && !isChatVar && !isGlobal && !isRagVar}
+            isSupportConstantValue={isSupportConstantValue}
+            maxNodeNameWidth={maxNodeNameWidth}
+            maxTypeWidth={maxTypeWidth}
+            maxVarNameWidth={maxVarNameWidth}
+            onChange={onChange}
+            onRemove={onRemove}
+            open={open}
+            outputVarNode={outputVarNode as Node['data'] | null}
+            outputVarNodeId={outputVarNodeId}
+            placeholder={triggerPlaceholder}
+            readonly={readonly}
+            schemaWithDynamicSelect={schemaWithDynamicSelect}
+            setControlFocus={setControlFocus}
+            setOpen={setOpen}
+            tooltipPopup={tooltipPopup}
+            triggerRef={triggerRef}
+            type={type}
+            typePlaceHolder={typePlaceHolder}
+            value={value}
+            valueTypePlaceHolder={valueTypePlaceHolder}
+            varKindType={varKindType}
+            varKindTypes={varKindTypes}
+            varName={varName}
+            variableCategory={variableCategory}
+            VarPickerWrap={VarPickerWrap}
+            WrapElem={WrapElem}
+          />
         )}
         <PortalToFollowElemContent
           style={{

web/app/components/workflow/nodes/_base/components/variable/var-reference-vars.helpers.ts

@@ -0,0 +1,100 @@
+import type { NodeOutPutVar, ValueSelector, Var } from '@/app/components/workflow/types'
+import { VAR_SHOW_NAME_MAP } from '@/app/components/workflow/constants'
+import { checkKeys } from '@/utils/var'
+import { isSpecialVar } from './utils'
+
+export const getVariableDisplayName = (
+  variable: string,
+  isFlat: boolean,
+  isInCodeGeneratorInstructionEditor?: boolean,
+) => {
+  if (VAR_SHOW_NAME_MAP[variable])
+    return VAR_SHOW_NAME_MAP[variable]
+  if (!isFlat)
+    return variable
+  if (variable === 'current')
+    return isInCodeGeneratorInstructionEditor ? 'current_code' : 'current_prompt'
+  return variable
+}
+
+export const getVariableCategory = ({
+  isEnv,
+  isChatVar,
+  isLoopVar,
+  isRagVariable,
+}: {
+  isEnv: boolean
+  isChatVar: boolean
+  isLoopVar?: boolean
+  isRagVariable?: boolean
+}) => {
+  if (isEnv)
+    return 'environment'
+  if (isChatVar)
+    return 'conversation'
+  if (isLoopVar)
+    return 'loop'
+  if (isRagVariable)
+    return 'rag'
+  return 'system'
+}
+
+export const getValueSelector = ({
+  itemData,
+  isFlat,
+  isSupportFileVar,
+  isFile,
+  isSys,
+  isEnv,
+  isChatVar,
+  isRagVariable,
+  nodeId,
+  objPath,
+}: {
+  itemData: Var
+  isFlat?: boolean
+  isSupportFileVar?: boolean
+  isFile: boolean
+  isSys: boolean
+  isEnv: boolean
+  isChatVar: boolean
+  isRagVariable?: boolean
+  nodeId: string
+  objPath: string[]
+}): ValueSelector | undefined => {
+  if (!isSupportFileVar && isFile)
+    return undefined
+
+  if (isFlat)
+    return [itemData.variable]
+  if (isSys || isEnv || isChatVar || isRagVariable)
+    return [...objPath, ...itemData.variable.split('.')]
+  return [nodeId, ...objPath, itemData.variable]
+}
+
+const getVisibleChildren = (vars: Var[]) => {
+  return vars.filter(variable => checkKeys([variable.variable], false).isValid || isSpecialVar(variable.variable.split('.')[0]))
+}
+
+export const filterReferenceVars = (vars: NodeOutPutVar[], searchText: string) => {
+  const searchTextLower = searchText.toLowerCase()
+
+  return vars
+    .map(node => ({ ...node, vars: getVisibleChildren(node.vars) }))
+    .filter(node => node.vars.length > 0)
+    .filter((node) => {
+      if (!searchText)
+        return true
+      return node.vars.some(variable => variable.variable.toLowerCase().includes(searchTextLower))
+        || node.title.toLowerCase().includes(searchTextLower)
+    })
+    .map((node) => {
+      if (!searchText || node.title.toLowerCase().includes(searchTextLower))
+        return node
+
+      return {
+        ...node,
+        vars: node.vars.filter(variable => variable.variable.toLowerCase().includes(searchTextLower)),
+      }
+    })
+}

web/app/components/workflow/nodes/_base/components/variable/var-reference-vars.tsx

@@ -17,15 +17,19 @@ import {
   PortalToFollowElemContent,
   PortalToFollowElemTrigger,
 } from '@/app/components/base/portal-to-follow-elem'
-import { VAR_SHOW_NAME_MAP } from '@/app/components/workflow/constants'
 import PickerStructurePanel from '@/app/components/workflow/nodes/_base/components/variable/object-child-tree-panel/picker'
 import { VariableIconWithColor } from '@/app/components/workflow/nodes/_base/components/variable/variable-label'
 import { VarType } from '@/app/components/workflow/types'
 import { cn } from '@/utils/classnames'
-import { checkKeys } from '@/utils/var'
 import { Type } from '../../../llm/types'
 import ManageInputField from './manage-input-field'
-import { isSpecialVar, varTypeToStructType } from './utils'
+import { varTypeToStructType } from './utils'
+import {
+  filterReferenceVars,
+  getValueSelector,
+  getVariableCategory,
+  getVariableDisplayName,
+} from './var-reference-vars.helpers'
 
 type ItemProps = {
   nodeId: string
@@ -84,17 +88,10 @@ const Item: FC<ItemProps> = ({
     }
   }, [isFlat, isInCodeGeneratorInstructionEditor, itemData.variable])
 
-  const varName = useMemo(() => {
-    if (VAR_SHOW_NAME_MAP[itemData.variable])
-      return VAR_SHOW_NAME_MAP[itemData.variable]
-
-    if (!isFlat)
-      return itemData.variable
-    if (itemData.variable === 'current')
-      return isInCodeGeneratorInstructionEditor ? 'current_code' : 'current_prompt'
-
-    return itemData.variable
-  }, [isFlat, isInCodeGeneratorInstructionEditor, itemData.variable])
+  const varName = useMemo(
+    () => getVariableDisplayName(itemData.variable, !!isFlat, isInCodeGeneratorInstructionEditor),
+    [isFlat, isInCodeGeneratorInstructionEditor, itemData.variable],
+  )
 
   const objStructuredOutput: StructuredOutput | null = useMemo(() => {
     if (!isObj)
@@ -150,30 +147,26 @@ const Item: FC<ItemProps> = ({
   const handleChosen = (e: React.MouseEvent) => {
     e.stopPropagation()
     e.nativeEvent.stopImmediatePropagation()
-    if (!isSupportFileVar && isFile)
-      return
+    const valueSelector = getValueSelector({
+      itemData,
+      isFlat,
+      isSupportFileVar,
+      isFile,
+      isSys,
+      isEnv,
+      isChatVar,
+      isRagVariable,
+      nodeId,
+      objPath,
+    })
 
-    if (isFlat) {
-      onChange([itemData.variable], itemData)
-    }
-    else if (isSys || isEnv || isChatVar || isRagVariable) { // system variable | environment variable | conversation variable
-      onChange([...objPath, ...itemData.variable.split('.')], itemData)
-    }
-    else {
-      onChange([nodeId, ...objPath, itemData.variable], itemData)
-    }
+    if (valueSelector)
+      onChange(valueSelector, itemData)
   }
-  const variableCategory = useMemo(() => {
-    if (isEnv)
-      return 'environment'
-    if (isChatVar)
-      return 'conversation'
-    if (isLoopVar)
-      return 'loop'
-    if (isRagVariable)
-      return 'rag'
-    return 'system'
-  }, [isEnv, isChatVar, isSys, isLoopVar, isRagVariable])
+  const variableCategory = useMemo(
+    () => getVariableCategory({ isEnv, isChatVar, isLoopVar, isRagVariable }),
+    [isEnv, isChatVar, isLoopVar, isRagVariable],
+  )
   return (
     <PortalToFollowElem
       open={open}
@@ -290,30 +283,7 @@ const VarReferenceVars: FC<Props> = ({
     }
   }
 
-  const filteredVars = vars.filter((v) => {
-    const children = v.vars.filter(v => checkKeys([v.variable], false).isValid || isSpecialVar(v.variable.split('.')[0]))
-    return children.length > 0
-  }).filter((node) => {
-    if (!searchText)
-      return node
-    const children = node.vars.filter((v) => {
-      const searchTextLower = searchText.toLowerCase()
-      return v.variable.toLowerCase().includes(searchTextLower) || node.title.toLowerCase().includes(searchTextLower)
-    })
-    return children.length > 0
-  }).map((node) => {
-    let vars = node.vars.filter(v => checkKeys([v.variable], false).isValid || isSpecialVar(v.variable.split('.')[0]))
-    if (searchText) {
-      const searchTextLower = searchText.toLowerCase()
-      if (!node.title.toLowerCase().includes(searchTextLower))
-        vars = vars.filter(v => v.variable.toLowerCase().includes(searchText.toLowerCase()))
-    }
-
-    return {
-      ...node,
-      vars,
-    }
-  })
+  const filteredVars = useMemo(() => filterReferenceVars(vars, searchText), [vars, searchText])
 
   return (
     <>

web/app/components/workflow/nodes/_base/components/workflow-panel/__tests__/helpers.spec.tsx

@@ -0,0 +1,90 @@
+import type { TriggerWithProvider } from '@/app/components/workflow/block-selector/types'
+import type { CustomRunFormProps } from '@/app/components/workflow/nodes/data-source/types'
+import type { Node, ToolWithProvider } from '@/app/components/workflow/types'
+import { BlockEnum } from '@/app/components/workflow/types'
+import {
+  clampNodePanelWidth,
+  getCompressedNodePanelWidth,
+  getCurrentDataSource,
+  getCurrentToolCollection,
+  getCurrentTriggerPlugin,
+  getCustomRunForm,
+  getMaxNodePanelWidth,
+} from '../helpers'
+
+describe('workflow-panel helpers', () => {
+  const asToolList = (tools: Array<Partial<ToolWithProvider>>) => tools as ToolWithProvider[]
+  const asTriggerList = (triggers: Array<Partial<TriggerWithProvider>>) => triggers as TriggerWithProvider[]
+  const asNodeData = (data: Partial<Node['data']>) => data as Node['data']
+  const createCustomRunFormProps = (payload: Partial<CustomRunFormProps['payload']>): CustomRunFormProps => ({
+    nodeId: 'node-1',
+    flowId: 'flow-1',
+    flowType: 'app' as CustomRunFormProps['flowType'],
+    payload: payload as CustomRunFormProps['payload'],
+    setRunResult: vi.fn(),
+    setIsRunAfterSingleRun: vi.fn(),
+    isPaused: false,
+    isRunAfterSingleRun: false,
+    onSuccess: vi.fn(),
+    onCancel: vi.fn(),
+    appendNodeInspectVars: vi.fn(),
+  })
+
+  describe('panel width helpers', () => {
+    it('should use the default max width when canvas width is unavailable', () => {
+      expect(getMaxNodePanelWidth(undefined, 120)).toBe(720)
+    })
+
+    it('should clamp width into the supported panel range', () => {
+      expect(clampNodePanelWidth(320, 800)).toBe(400)
+      expect(clampNodePanelWidth(960, 800)).toBe(800)
+      expect(clampNodePanelWidth(640, 800)).toBe(640)
+    })
+
+    it('should return a compressed width only when the canvas overflows', () => {
+      expect(getCompressedNodePanelWidth(500, 1500, 300)).toBeUndefined()
+      expect(getCompressedNodePanelWidth(900, 1200, 200)).toBe(600)
+    })
+  })
+
+  describe('tool and provider lookup', () => {
+    it('should prefer fresh built-in tool data when it is available', () => {
+      const storeTools = [{ id: 'legacy/tool', allow_delete: false }]
+      const queryTools = [{ id: 'provider/tool', allow_delete: true }]
+
+      expect(getCurrentToolCollection(asToolList(queryTools), asToolList(storeTools), 'provider/tool')).toEqual(queryTools[0])
+    })
+
+    it('should fall back to store data when query data is unavailable', () => {
+      const storeTools = [{ id: 'provider/tool', allow_delete: false }]
+
+      expect(getCurrentToolCollection(undefined, asToolList(storeTools), 'provider/tool')).toEqual(storeTools[0])
+    })
+
+    it('should resolve the current trigger plugin and datasource only for matching node types', () => {
+      const triggerData = asNodeData({ type: BlockEnum.TriggerPlugin, plugin_id: 'trigger-1' })
+      const dataSourceData = asNodeData({ type: BlockEnum.DataSource, plugin_id: 'source-1', provider_type: 'remote' })
+      const triggerPlugins = [{ plugin_id: 'trigger-1', id: '1' }]
+      const dataSources = [{ plugin_id: 'source-1' }]
+
+      expect(getCurrentTriggerPlugin(triggerData, asTriggerList(triggerPlugins))).toEqual(triggerPlugins[0])
+      expect(getCurrentDataSource(dataSourceData, dataSources)).toEqual(dataSources[0])
+      expect(getCurrentTriggerPlugin(asNodeData({ type: BlockEnum.Tool }), asTriggerList(triggerPlugins))).toBeUndefined()
+      expect(getCurrentDataSource(asNodeData({ type: BlockEnum.Tool }), dataSources)).toBeUndefined()
+    })
+  })
+
+  describe('custom run form fallback', () => {
+    it('should return a fallback message for unsupported custom run form nodes', () => {
+      const form = getCustomRunForm({
+        ...createCustomRunFormProps({ type: BlockEnum.Tool }),
+      })
+
+      expect(form).toMatchObject({
+        props: {
+          children: expect.arrayContaining(['Custom Run Form:', ' ', 'not found']),
+        },
+      })
+    })
+  })
+})

web/app/components/workflow/nodes/_base/components/workflow-panel/__tests__/index.spec.tsx

@@ -1,146 +1,615 @@
-/**
- * Workflow Panel Width Persistence Tests
- * Tests for GitHub issue #22745: Panel width persistence bug fix
- */
+import type { PropsWithChildren } from 'react'
+import type { ToolWithProvider } from '@/app/components/workflow/types'
+import { fireEvent, screen, waitFor } from '@testing-library/react'
+import * as React from 'react'
+import { renderWorkflowComponent } from '@/app/components/workflow/__tests__/workflow-test-env'
+import { BlockEnum, NodeRunningStatus } from '@/app/components/workflow/types'
+import BasePanel from '../index'
 
-export {}
+const mockHandleNodeSelect = vi.fn()
+const mockHandleNodeDataUpdate = vi.fn()
+const mockHandleNodeDataUpdateWithSyncDraft = vi.fn()
+const mockSaveStateToHistory = vi.fn()
+const mockSetDetail = vi.fn()
+const mockSetShowAccountSettingModal = vi.fn()
+const mockHandleSingleRun = vi.fn()
+const mockHandleStop = vi.fn()
+const mockHandleRunWithParams = vi.fn()
+let mockShowMessageLogModal = false
+let mockBuiltInTools = [{
+  id: 'provider/tool',
+  name: 'Tool',
+  type: 'builtin',
+  allow_delete: true,
+}]
+let mockTriggerPlugins: Array<Record<string, unknown>> = []
 
-type PanelWidthSource = 'user' | 'system'
-
-// Core panel width logic extracted from the component
-const createPanelWidthManager = (storageKey: string) => {
-  return {
-    updateWidth: (width: number, source: PanelWidthSource = 'user') => {
-      const newValue = Math.max(400, Math.min(width, 800))
-      if (source === 'user')
-        localStorage.setItem(storageKey, `${newValue}`)
-
-      return newValue
-    },
-    getStoredWidth: () => {
-      const stored = localStorage.getItem(storageKey)
-      return stored ? Number.parseFloat(stored) : 400
-    },
-  }
+const mockLogsState = {
+  showSpecialResultPanel: false,
 }
 
-describe('Workflow Panel Width Persistence', () => {
-  describe('Node Panel Width Management', () => {
-    const storageKey = 'workflow-node-panel-width'
+const mockLastRunState = {
+  isShowSingleRun: false,
+  hideSingleRun: vi.fn(),
+  runningStatus: NodeRunningStatus.Succeeded,
+  runInputData: {},
+  runInputDataRef: { current: {} },
+  runResult: {},
+  setRunResult: vi.fn(),
+  getInputVars: vi.fn(),
+  toVarInputs: vi.fn(),
+  tabType: 'settings',
+  isRunAfterSingleRun: false,
+  setIsRunAfterSingleRun: vi.fn(),
+  setTabType: vi.fn(),
+  handleAfterCustomSingleRun: vi.fn(),
+  singleRunParams: {
+    forms: [],
+    onStop: vi.fn(),
+    runningStatus: NodeRunningStatus.Succeeded,
+    existVarValuesInForms: [],
+    filteredExistVarForms: [],
+  },
+  nodeInfo: { id: 'node-1' },
+  setRunInputData: vi.fn(),
+  handleStop: () => mockHandleStop(),
+  handleSingleRun: () => mockHandleSingleRun(),
+  handleRunWithParams: (...args: unknown[]) => mockHandleRunWithParams(...args),
+  getExistVarValuesInForms: vi.fn(() => []),
+  getFilteredExistVarForms: vi.fn(() => []),
+}
 
-    it('should save user resize to localStorage', () => {
-      const manager = createPanelWidthManager(storageKey)
+const createDataSourceCollection = (overrides: Partial<ToolWithProvider> = {}): ToolWithProvider => ({
+  id: 'source-1',
+  name: 'Source',
+  author: 'Author',
+  description: { en_US: 'Source description', zh_Hans: 'Source description' },
+  icon: 'source-icon',
+  label: { en_US: 'Source', zh_Hans: 'Source' },
+  type: 'datasource',
+  team_credentials: {},
+  is_team_authorization: false,
+  allow_delete: false,
+  labels: [],
+  plugin_id: 'source-1',
+  tools: [],
+  meta: {} as ToolWithProvider['meta'],
+  ...overrides,
+}) as ToolWithProvider
 
-      const result = manager.updateWidth(500, 'user')
+vi.mock('@/app/components/app/store', () => ({
+  useStore: (selector: (state: { showMessageLogModal: boolean, appDetail: { id: string } }) => unknown) => selector({
+    showMessageLogModal: mockShowMessageLogModal,
+    appDetail: { id: 'app-1' },
+  }),
+}))
 
-      expect(result).toBe(500)
-      expect(localStorage.setItem).toHaveBeenCalledWith(storageKey, '500')
+vi.mock('@/app/components/header/account-setting/model-provider-page/hooks', () => ({
+  useLanguage: () => 'en_US',
+}))
+
+vi.mock('@/app/components/plugins/plugin-detail-panel/store', () => ({
+  usePluginStore: () => ({
+    setDetail: mockSetDetail,
+  }),
+}))
+
+vi.mock('@/app/components/workflow/hooks', () => ({
+  useAvailableBlocks: () => ({ availableNextBlocks: [] }),
+  useEdgesInteractions: () => ({
+    handleEdgeDeleteByDeleteBranch: vi.fn(),
+  }),
+  useNodeDataUpdate: () => ({
+    handleNodeDataUpdate: mockHandleNodeDataUpdate,
+    handleNodeDataUpdateWithSyncDraft: mockHandleNodeDataUpdateWithSyncDraft,
+  }),
+  useNodesInteractions: () => ({
+    handleNodeSelect: mockHandleNodeSelect,
+  }),
+  useNodesMetaData: () => ({
+    nodesMap: {
+      [BlockEnum.Tool]: { defaultRunInputData: {}, metaData: { helpLinkUri: '' } },
+      [BlockEnum.DataSource]: { defaultRunInputData: {}, metaData: { helpLinkUri: '' } },
+    },
+  }),
+  useNodesReadOnly: () => ({
+    nodesReadOnly: false,
+  }),
+  useToolIcon: () => undefined,
+  useWorkflowHistory: () => ({
+    saveStateToHistory: mockSaveStateToHistory,
+  }),
+  WorkflowHistoryEvent: {
+    NodeTitleChange: 'NodeTitleChange',
+    NodeDescriptionChange: 'NodeDescriptionChange',
+  },
+}))
+
+vi.mock('@/app/components/workflow/hooks-store', () => ({
+  useHooksStore: (selector: (state: { configsMap: { flowId: string, flowType: string } }) => unknown) => selector({
+    configsMap: {
+      flowId: 'flow-1',
+      flowType: 'app',
+    },
+  }),
+}))
+
+vi.mock('@/app/components/workflow/hooks/use-inspect-vars-crud', () => ({
+  default: () => ({
+    appendNodeInspectVars: vi.fn(),
+  }),
+}))
+
+vi.mock('@/app/components/workflow/run/hooks', () => ({
+  useLogs: () => mockLogsState,
+}))
+
+vi.mock('@/service/use-tools', () => ({
+  useAllBuiltInTools: () => ({
+    data: mockBuiltInTools,
+  }),
+}))
+
+vi.mock('@/service/use-triggers', () => ({
+  useAllTriggerPlugins: () => ({
+    data: mockTriggerPlugins,
+  }),
+}))
+
+vi.mock('@/context/modal-context', () => ({
+  useModalContext: () => ({
+    setShowAccountSettingModal: mockSetShowAccountSettingModal,
+  }),
+}))
+
+vi.mock('@/app/components/workflow/utils', async (importOriginal) => {
+  const actual = await importOriginal<typeof import('@/app/components/workflow/utils')>()
+  return {
+    ...actual,
+    canRunBySingle: () => true,
+    hasErrorHandleNode: () => false,
+    hasRetryNode: () => false,
+    isSupportCustomRunForm: (type: string) => type === BlockEnum.DataSource,
+  }
+})
+
+vi.mock('../hooks/use-resize-panel', () => ({
+  useResizePanel: () => ({
+    triggerRef: { current: null },
+    containerRef: { current: null },
+  }),
+}))
+
+vi.mock('../last-run/use-last-run', () => ({
+  default: () => mockLastRunState,
+}))
+
+vi.mock('@/app/components/plugins/plugin-auth', () => ({
+  PluginAuth: ({ children }: PropsWithChildren) => <div>{children}</div>,
+  AuthorizedInNode: ({ onAuthorizationItemClick }: { onAuthorizationItemClick?: (credentialId: string) => void }) => (
+    <button onClick={() => onAuthorizationItemClick?.('credential-1')}>authorized-in-node</button>
+  ),
+  PluginAuthInDataSourceNode: ({ children, onJumpToDataSourcePage }: PropsWithChildren<{ onJumpToDataSourcePage?: () => void }>) => (
+    <div>
+      <button onClick={onJumpToDataSourcePage}>jump-to-datasource</button>
+      {children}
+    </div>
+  ),
+  AuthorizedInDataSourceNode: ({ onJumpToDataSourcePage }: { onJumpToDataSourcePage?: () => void }) => (
+    <button onClick={onJumpToDataSourcePage}>authorized-in-datasource-node</button>
+  ),
+  AuthCategory: { tool: 'tool' },
+}))
+
+vi.mock('@/app/components/plugins/readme-panel/entrance', () => ({
+  ReadmeEntrance: () => <div>readme-entrance</div>,
+}))
+
+vi.mock('@/app/components/workflow/block-icon', () => ({
+  default: () => <div>block-icon</div>,
+}))
+
+vi.mock('@/app/components/workflow/nodes/_base/components/split', () => ({
+  default: () => <div>split</div>,
+}))
+
+vi.mock('@/app/components/workflow/nodes/data-source/before-run-form', () => ({
+  default: () => <div>data-source-before-run-form</div>,
+}))
+
+vi.mock('@/app/components/workflow/run/special-result-panel', () => ({
+  default: () => <div>special-result-panel</div>,
+}))
+
+vi.mock('../before-run-form', () => ({
+  default: () => <div>before-run-form</div>,
+}))
+
+vi.mock('../before-run-form/panel-wrap', () => ({
+  default: ({ children }: PropsWithChildren<{ nodeName: string, onHide: () => void }>) => <div>{children}</div>,
+}))
+
+vi.mock('../error-handle/error-handle-on-panel', () => ({
+  default: () => <div>error-handle-panel</div>,
+}))
+
+vi.mock('../help-link', () => ({
+  default: () => <div>help-link</div>,
+}))
+
+vi.mock('../next-step', () => ({
+  default: () => <div>next-step</div>,
+}))
+
+vi.mock('../panel-operator', () => ({
+  default: () => <div>panel-operator</div>,
+}))
+
+vi.mock('../retry/retry-on-panel', () => ({
+  default: () => <div>retry-panel</div>,
+}))
+
+vi.mock('../title-description-input', () => ({
+  TitleInput: ({ value, onBlur }: { value: string, onBlur: (value: string) => void }) => (
+    <input aria-label="title-input" defaultValue={value} onBlur={event => onBlur(event.target.value)} />
+  ),
+  DescriptionInput: ({ value, onChange }: { value: string, onChange: (value: string) => void }) => (
+    <textarea aria-label="description-input" defaultValue={value} onChange={event => onChange(event.target.value)} />
+  ),
+}))
+
+vi.mock('../last-run', () => ({
+  default: ({
+    isPaused,
+    updateNodeRunningStatus,
+  }: {
+    isPaused?: boolean
+    updateNodeRunningStatus?: (status: NodeRunningStatus) => void
+  }) => (
+    <div>
+      <div>{isPaused ? 'paused' : 'active'}</div>
+      <button onClick={() => updateNodeRunningStatus?.(NodeRunningStatus.Running)}>last-run-update-status</button>
+      <div>last-run-panel</div>
+    </div>
+  ),
+}))
+
+vi.mock('../tab', () => ({
+  __esModule: true,
+  TabType: { settings: 'settings', lastRun: 'lastRun' },
+  default: ({ value, onChange }: { value: string, onChange: (value: string) => void }) => (
+    <div>
+      <button onClick={() => onChange('settings')}>settings-tab</button>
+      <button onClick={() => onChange('lastRun')}>last-run-tab</button>
+      <span>{value}</span>
+    </div>
+  ),
+}))
+
+vi.mock('../trigger-subscription', () => ({
+  TriggerSubscription: ({ children, onSubscriptionChange }: PropsWithChildren<{ onSubscriptionChange?: (value: { id: string }, callback?: () => void) => void }>) => (
+    <div>
+      <button onClick={() => onSubscriptionChange?.({ id: 'subscription-1' }, vi.fn())}>change-subscription</button>
+      {children}
+    </div>
+  ),
+}))
+
+const createData = (overrides: Record<string, unknown> = {}) => ({
+  title: 'Tool Node',
+  desc: 'Node description',
+  type: BlockEnum.Tool,
+  provider_id: 'provider/tool',
+  _singleRunningStatus: undefined,
+  ...overrides,
+})
+
+describe('workflow-panel index', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockShowMessageLogModal = false
+    mockBuiltInTools = [{
+      id: 'provider/tool',
+      name: 'Tool',
+      type: 'builtin',
+      allow_delete: true,
+    }]
+    mockTriggerPlugins = []
+    mockLogsState.showSpecialResultPanel = false
+    mockLastRunState.isShowSingleRun = false
+    mockLastRunState.tabType = 'settings'
+  })
+
+  it('should render the settings panel and wire title, description, run, and close actions', async () => {
+    const { container } = renderWorkflowComponent(
+      <BasePanel id="node-1" data={createData() as never}>
+        <div>panel-child</div>
+      </BasePanel>,
+      {
+        initialStoreState: {
+          showSingleRunPanel: false,
+          workflowCanvasWidth: 1200,
+          nodePanelWidth: 480,
+          otherPanelWidth: 200,
+          buildInTools: [],
+          dataSourceList: [],
+        },
+      },
+    )
+
+    expect(screen.getByText('panel-child')).toBeInTheDocument()
+    expect(screen.getByText('authorized-in-node')).toBeInTheDocument()
+
+    fireEvent.blur(screen.getByDisplayValue('Tool Node'), { target: { value: 'Updated title' } })
+    fireEvent.change(screen.getByDisplayValue('Node description'), { target: { value: 'Updated description' } })
+
+    await waitFor(() => {
+      expect(mockHandleNodeDataUpdateWithSyncDraft).toHaveBeenCalled()
     })
+    expect(mockSaveStateToHistory).toHaveBeenCalled()
+    fireEvent.click(screen.getByText('authorized-in-node'))
 
-    it('should not save system compression to localStorage', () => {
-      const manager = createPanelWidthManager(storageKey)
+    const clickableItems = container.querySelectorAll('.cursor-pointer')
+    fireEvent.click(clickableItems[0] as HTMLElement)
+    fireEvent.click(clickableItems[clickableItems.length - 1] as HTMLElement)
 
-      const result = manager.updateWidth(200, 'system')
+    expect(mockHandleSingleRun).toHaveBeenCalledTimes(1)
+    expect(mockHandleNodeSelect).toHaveBeenCalledWith('node-1', true)
+    expect(mockHandleNodeDataUpdateWithSyncDraft).toHaveBeenCalledWith(expect.objectContaining({
+      data: expect.objectContaining({ credential_id: 'credential-1' }),
+    }))
+  })
 
-      expect(result).toBe(400) // Respects minimum width
-      expect(localStorage.setItem).not.toHaveBeenCalled()
-    })
+  it('should render the special result panel when logs request it', () => {
+    mockLogsState.showSpecialResultPanel = true
 
-    it('should enforce minimum width of 400px', () => {
-      const manager = createPanelWidthManager(storageKey)
+    renderWorkflowComponent(
+      <BasePanel id="node-1" data={createData() as never}>
+        <div>panel-child</div>
+      </BasePanel>,
+      {
+        initialStoreState: {
+          nodePanelWidth: 480,
+          otherPanelWidth: 200,
+        },
+      },
+    )
 
-      // User tries to set below minimum
-      const userResult = manager.updateWidth(300, 'user')
-      expect(userResult).toBe(400)
-      expect(localStorage.setItem).toHaveBeenCalledWith(storageKey, '400')
+    expect(screen.getByText('special-result-panel')).toBeInTheDocument()
+  })
 
-      // System compression below minimum
-      const systemResult = manager.updateWidth(150, 'system')
-      expect(systemResult).toBe(400)
-      expect(localStorage.setItem).toHaveBeenCalledTimes(1) // Only user call
-    })
+  it('should render last-run content when the tab switches', () => {
+    mockLastRunState.tabType = 'lastRun'
 
-    it('should preserve user preferences during system compression', () => {
-      localStorage.setItem(storageKey, '600')
-      const manager = createPanelWidthManager(storageKey)
+    renderWorkflowComponent(
+      <BasePanel id="node-1" data={createData() as never}>
+        <div>panel-child</div>
+      </BasePanel>,
+      {
+        initialStoreState: {
+          nodePanelWidth: 480,
+          otherPanelWidth: 200,
+        },
+      },
+    )
 
-      // System compresses panel
-      manager.updateWidth(200, 'system')
+    expect(screen.getByText('last-run-panel')).toBeInTheDocument()
+  })
 
-      // User preference should remain unchanged
-      expect(localStorage.getItem(storageKey)).toBe('600')
+  it('should render the plain tab layout and allow last-run status updates', async () => {
+    mockLastRunState.tabType = 'lastRun'
+
+    renderWorkflowComponent(
+      <BasePanel id="node-plain" data={createData({ type: 'custom' }) as never}>
+        <div>panel-child</div>
+      </BasePanel>,
+      {
+        initialStoreState: {
+          nodePanelWidth: 480,
+          otherPanelWidth: 200,
+        },
+      },
+    )
+
+    expect(screen.queryByText('authorized-in-node')).not.toBeInTheDocument()
+
+    fireEvent.click(screen.getByText('last-run-update-status'))
+
+    await waitFor(() => {
+      expect(mockHandleNodeDataUpdate).toHaveBeenCalledWith(expect.objectContaining({
+        id: 'node-plain',
+        data: expect.objectContaining({
+          _singleRunningStatus: NodeRunningStatus.Running,
+        }),
+      }))
     })
   })
 
-  describe('Bug Scenario Reproduction', () => {
-    it('should reproduce original bug behavior (for comparison)', () => {
-      const storageKey = 'workflow-node-panel-width'
+  it('should mark the last run as paused after a running single-run completes', async () => {
+    mockLastRunState.tabType = 'lastRun'
 
-      // Original buggy behavior - always saves regardless of source
-      const buggyUpdate = (width: number) => {
-        localStorage.setItem(storageKey, `${width}`)
-        return Math.max(400, width)
-      }
+    const { rerender } = renderWorkflowComponent(
+      <BasePanel id="node-pause" data={createData({ _singleRunningStatus: NodeRunningStatus.Running }) as never}>
+        <div>panel-child</div>
+      </BasePanel>,
+      {
+        initialStoreState: {
+          nodePanelWidth: 480,
+          otherPanelWidth: 200,
+        },
+      },
+    )
 
-      localStorage.setItem(storageKey, '500') // User preference
-      buggyUpdate(200) // System compression pollutes localStorage
+    expect(screen.getByText('active')).toBeInTheDocument()
 
-      expect(localStorage.getItem(storageKey)).toBe('200') // Bug: corrupted state
-    })
+    rerender(
+      <BasePanel id="node-pause" data={createData({ _isSingleRun: true, _singleRunningStatus: undefined }) as never}>
+        <div>panel-child</div>
+      </BasePanel>,
+    )
 
-    it('should verify fix prevents localStorage pollution', () => {
-      const storageKey = 'workflow-node-panel-width'
-      const manager = createPanelWidthManager(storageKey)
-
-      localStorage.setItem(storageKey, '500') // User preference
-      manager.updateWidth(200, 'system') // System compression
-
-      expect(localStorage.getItem(storageKey)).toBe('500') // Fix: preserved state
+    await waitFor(() => {
+      expect(screen.getByText('paused')).toBeInTheDocument()
     })
   })
 
-  describe('Edge Cases', () => {
-    it('should handle multiple rapid operations correctly', () => {
-      const manager = createPanelWidthManager('workflow-node-panel-width')
+  it('should render custom data source single run form for supported nodes', () => {
+    mockLastRunState.isShowSingleRun = true
 
-      // Rapid system adjustments
-      manager.updateWidth(300, 'system')
-      manager.updateWidth(250, 'system')
-      manager.updateWidth(180, 'system')
+    renderWorkflowComponent(
+      <BasePanel id="node-1" data={createData({ type: BlockEnum.DataSource }) as never}>
+        <div>panel-child</div>
+      </BasePanel>,
+      {
+        initialStoreState: {
+          nodePanelWidth: 480,
+          otherPanelWidth: 200,
+        },
+      },
+    )
 
-      // Single user adjustment
-      manager.updateWidth(550, 'user')
-
-      expect(localStorage.setItem).toHaveBeenCalledTimes(1)
-      expect(localStorage.setItem).toHaveBeenCalledWith('workflow-node-panel-width', '550')
-    })
-
-    it('should handle corrupted localStorage gracefully', () => {
-      localStorage.setItem('workflow-node-panel-width', '150') // Below minimum
-      const manager = createPanelWidthManager('workflow-node-panel-width')
-
-      const storedWidth = manager.getStoredWidth()
-      expect(storedWidth).toBe(150) // Returns raw value
-
-      // User can correct the preference
-      const correctedWidth = manager.updateWidth(500, 'user')
-      expect(correctedWidth).toBe(500)
-      expect(localStorage.getItem('workflow-node-panel-width')).toBe('500')
-    })
+    expect(screen.getByText('data-source-before-run-form')).toBeInTheDocument()
   })
 
-  describe('TypeScript Type Safety', () => {
-    it('should enforce source parameter type', () => {
-      const manager = createPanelWidthManager('workflow-node-panel-width')
+  it('should render data source authorization controls and jump to the settings modal', () => {
+    renderWorkflowComponent(
+      <BasePanel id="node-1" data={createData({ type: BlockEnum.DataSource, plugin_id: 'source-1', provider_type: 'remote' }) as never}>
+        <div>panel-child</div>
+      </BasePanel>,
+      {
+        initialStoreState: {
+          nodePanelWidth: 480,
+          otherPanelWidth: 200,
+          dataSourceList: [createDataSourceCollection({ is_authorized: false })],
+        },
+      },
+    )
 
-      // Valid source values
-      manager.updateWidth(500, 'user')
-      manager.updateWidth(500, 'system')
+    fireEvent.click(screen.getByText('authorized-in-datasource-node'))
 
-      // Default to 'user'
-      manager.updateWidth(500)
+    expect(mockSetShowAccountSettingModal).toHaveBeenCalled()
+  })
 
-      expect(localStorage.setItem).toHaveBeenCalledTimes(2) // user + default
+  it('should react to pending single run actions', () => {
+    renderWorkflowComponent(
+      <BasePanel id="node-1" data={createData() as never}>
+        <div>panel-child</div>
+      </BasePanel>,
+      {
+        initialStoreState: {
+          nodePanelWidth: 480,
+          otherPanelWidth: 200,
+          pendingSingleRun: {
+            nodeId: 'node-1',
+            action: 'run',
+          },
+        },
+      },
+    )
+
+    expect(mockHandleSingleRun).toHaveBeenCalledTimes(1)
+
+    renderWorkflowComponent(
+      <BasePanel id="node-1" data={createData() as never}>
+        <div>panel-child</div>
+      </BasePanel>,
+      {
+        initialStoreState: {
+          nodePanelWidth: 480,
+          otherPanelWidth: 200,
+          pendingSingleRun: {
+            nodeId: 'node-1',
+            action: 'stop',
+          },
+        },
+      },
+    )
+
+    expect(mockHandleStop).toHaveBeenCalledTimes(1)
+  })
+
+  it('should load trigger plugin details when the selected node is a trigger plugin', async () => {
+    mockTriggerPlugins = [{
+      id: 'trigger-1',
+      name: 'trigger-name',
+      plugin_id: 'plugin-id',
+      plugin_unique_identifier: 'plugin-uid',
+      label: {
+        en_US: 'Trigger Name',
+      },
+      declaration: {},
+      subscription_schema: [],
+      subscription_constructor: {},
+    }]
+
+    renderWorkflowComponent(
+      <BasePanel id="node-1" data={createData({ type: BlockEnum.TriggerPlugin, plugin_id: 'plugin-id' }) as never}>
+        <div>panel-child</div>
+      </BasePanel>,
+      {
+        initialStoreState: {
+          nodePanelWidth: 480,
+          otherPanelWidth: 200,
+        },
+      },
+    )
+
+    await waitFor(() => {
+      expect(mockSetDetail).toHaveBeenCalledWith(expect.objectContaining({
+        id: 'trigger-1',
+        name: 'Trigger Name',
+      }))
+    })
+
+    fireEvent.click(screen.getByText('change-subscription'))
+    expect(mockHandleNodeDataUpdateWithSyncDraft).toHaveBeenCalledWith(
+      { id: 'node-1', data: { subscription_id: 'subscription-1' } },
+      expect.objectContaining({ sync: true }),
+    )
+  })
+
+  it('should stop a running node and offset when the log modal is visible', () => {
+    mockShowMessageLogModal = true
+
+    const { container } = renderWorkflowComponent(
+      <BasePanel id="node-1" data={createData({ _singleRunningStatus: NodeRunningStatus.Running }) as never}>
+        <div>panel-child</div>
+      </BasePanel>,
+      {
+        initialStoreState: {
+          nodePanelWidth: 480,
+          otherPanelWidth: 240,
+        },
+      },
+    )
+
+    const root = container.firstElementChild as HTMLElement
+    expect(root.style.right).toBe('240px')
+    expect(root.className).toContain('absolute')
+
+    const clickableItems = container.querySelectorAll('.cursor-pointer')
+    fireEvent.click(clickableItems[0] as HTMLElement)
+
+    expect(mockHandleStop).toHaveBeenCalledTimes(1)
+  })
+
+  it('should persist user resize changes and compress oversized panel widths', async () => {
+    const { container } = renderWorkflowComponent(
+      <BasePanel id="node-resize" data={createData() as never}>
+        <div>panel-child</div>
+      </BasePanel>,
+      {
+        initialStoreState: {
+          workflowCanvasWidth: 800,
+          nodePanelWidth: 600,
+          otherPanelWidth: 200,
+        },
+      },
+    )
+
+    await waitFor(() => {
+      const panel = container.querySelector('[style*="width"]') as HTMLElement
+      expect(panel.style.width).toBe('400px')
     })
   })
 })

web/app/components/workflow/nodes/_base/components/workflow-panel/helpers.tsx

@@ -0,0 +1,80 @@
+import type { ReactNode } from 'react'
+import type { TriggerWithProvider } from '@/app/components/workflow/block-selector/types'
+import type { CustomRunFormProps } from '@/app/components/workflow/nodes/data-source/types'
+import type { Node, ToolWithProvider } from '@/app/components/workflow/types'
+import DataSourceBeforeRunForm from '@/app/components/workflow/nodes/data-source/before-run-form'
+import { DataSourceClassification } from '@/app/components/workflow/nodes/data-source/types'
+import { BlockEnum } from '@/app/components/workflow/types'
+import { canFindTool } from '@/utils'
+
+const MIN_NODE_PANEL_WIDTH = 400
+const DEFAULT_MAX_NODE_PANEL_WIDTH = 720
+
+export const getMaxNodePanelWidth = (workflowCanvasWidth?: number, otherPanelWidth?: number, reservedCanvasWidth = MIN_NODE_PANEL_WIDTH) => {
+  if (!workflowCanvasWidth)
+    return DEFAULT_MAX_NODE_PANEL_WIDTH
+
+  const available = workflowCanvasWidth - (otherPanelWidth || 0) - reservedCanvasWidth
+  return Math.max(available, MIN_NODE_PANEL_WIDTH)
+}
+
+export const clampNodePanelWidth = (width: number, maxNodePanelWidth: number) => {
+  return Math.max(MIN_NODE_PANEL_WIDTH, Math.min(width, maxNodePanelWidth))
+}
+
+export const getCompressedNodePanelWidth = (nodePanelWidth: number, workflowCanvasWidth?: number, otherPanelWidth?: number, reservedCanvasWidth = MIN_NODE_PANEL_WIDTH) => {
+  if (!workflowCanvasWidth)
+    return undefined
+
+  const total = nodePanelWidth + (otherPanelWidth || 0) + reservedCanvasWidth
+  if (total <= workflowCanvasWidth)
+    return undefined
+
+  return clampNodePanelWidth(workflowCanvasWidth - (otherPanelWidth || 0) - reservedCanvasWidth, getMaxNodePanelWidth(workflowCanvasWidth, otherPanelWidth, reservedCanvasWidth))
+}
+
+export const getCustomRunForm = (params: CustomRunFormProps): ReactNode => {
+  const nodeType = params.payload.type
+  switch (nodeType) {
+    case BlockEnum.DataSource:
+      return <DataSourceBeforeRunForm {...params} />
+    default:
+      return (
+        <div>
+          Custom Run Form:
+          {nodeType}
+          {' '}
+          not found
+        </div>
+      )
+  }
+}
+
+export const getCurrentToolCollection = (
+  buildInTools: ToolWithProvider[] | undefined,
+  storeBuildInTools: ToolWithProvider[] | undefined,
+  providerId?: string,
+) => {
+  const candidates = buildInTools ?? storeBuildInTools
+  return candidates?.find(item => canFindTool(item.id, providerId))
+}
+
+export const getCurrentDataSource = (
+  data: Node['data'],
+  dataSourceList: Array<{ plugin_id?: string, is_authorized?: boolean }> | undefined,
+) => {
+  if (data.type !== BlockEnum.DataSource || data.provider_type === DataSourceClassification.localFile)
+    return undefined
+
+  return dataSourceList?.find(item => item.plugin_id === data.plugin_id)
+}
+
+export const getCurrentTriggerPlugin = (
+  data: Node['data'],
+  triggerPlugins: TriggerWithProvider[] | undefined,
+) => {
+  if (data.type !== BlockEnum.TriggerPlugin || !data.plugin_id || !triggerPlugins?.length)
+    return undefined
+
+  return triggerPlugins.find(plugin => plugin.plugin_id === data.plugin_id)
+}

web/app/components/workflow/nodes/_base/components/workflow-panel/index.tsx

@@ -1,6 +1,5 @@
 import type { FC, ReactNode } from 'react'
 import type { SimpleSubscription } from '@/app/components/plugins/plugin-detail-panel/subscription-list'
-import type { CustomRunFormProps } from '@/app/components/workflow/nodes/data-source/types'
 import type { Node } from '@/app/components/workflow/types'
 import {
   RiCloseLine,
@@ -47,8 +46,6 @@ import {
 import { useHooksStore } from '@/app/components/workflow/hooks-store'
 import useInspectVarsCrud from '@/app/components/workflow/hooks/use-inspect-vars-crud'
 import Split from '@/app/components/workflow/nodes/_base/components/split'
-import DataSourceBeforeRunForm from '@/app/components/workflow/nodes/data-source/before-run-form'
-import { DataSourceClassification } from '@/app/components/workflow/nodes/data-source/types'
 import { useLogs } from '@/app/components/workflow/run/hooks'
 import SpecialResultPanel from '@/app/components/workflow/run/special-result-panel'
 import { useStore } from '@/app/components/workflow/store'
@@ -63,7 +60,6 @@ import { useModalContext } from '@/context/modal-context'
 import { useAllBuiltInTools } from '@/service/use-tools'
 import { useAllTriggerPlugins } from '@/service/use-triggers'
 import { FlowType } from '@/types/common'
-import { canFindTool } from '@/utils'
 import { cn } from '@/utils/classnames'
 import { useResizePanel } from '../../hooks/use-resize-panel'
 import BeforeRunForm from '../before-run-form'
@@ -74,28 +70,20 @@ import NextStep from '../next-step'
 import PanelOperator from '../panel-operator'
 import RetryOnPanel from '../retry/retry-on-panel'
 import { DescriptionInput, TitleInput } from '../title-description-input'
+import {
+  clampNodePanelWidth,
+  getCompressedNodePanelWidth,
+  getCurrentDataSource,
+  getCurrentToolCollection,
+  getCurrentTriggerPlugin,
+  getCustomRunForm,
+  getMaxNodePanelWidth,
+} from './helpers'
 import LastRun from './last-run'
 import useLastRun from './last-run/use-last-run'
 import Tab, { TabType } from './tab'
 import { TriggerSubscription } from './trigger-subscription'
 
-const getCustomRunForm = (params: CustomRunFormProps): React.JSX.Element => {
-  const nodeType = params.payload.type
-  switch (nodeType) {
-    case BlockEnum.DataSource:
-      return <DataSourceBeforeRunForm {...params} />
-    default:
-      return (
-        <div>
-          Custom Run Form:
-          {nodeType}
-          {' '}
-          not found
-        </div>
-      )
-  }
-}
-
 type BasePanelProps = {
   children: ReactNode
   id: Node['id']
@@ -124,17 +112,13 @@ const BasePanel: FC<BasePanelProps> = ({
 
   const reservedCanvasWidth = 400 // Reserve the minimum visible width for the canvas
 
-  const maxNodePanelWidth = useMemo(() => {
-    if (!workflowCanvasWidth)
-      return 720
-
-    const available = workflowCanvasWidth - (otherPanelWidth || 0) - reservedCanvasWidth
-    return Math.max(available, 400)
-  }, [workflowCanvasWidth, otherPanelWidth])
+  const maxNodePanelWidth = useMemo(
+    () => getMaxNodePanelWidth(workflowCanvasWidth, otherPanelWidth, reservedCanvasWidth),
+    [workflowCanvasWidth, otherPanelWidth],
+  )
 
   const updateNodePanelWidth = useCallback((width: number, source: 'user' | 'system' = 'user') => {
-    // Ensure the width is within the min and max range
-    const newValue = Math.max(400, Math.min(width, maxNodePanelWidth))
+    const newValue = clampNodePanelWidth(width, maxNodePanelWidth)
 
     if (source === 'user')
       localStorage.setItem('workflow-node-panel-width', `${newValue}`)
@@ -162,15 +146,9 @@ const BasePanel: FC<BasePanelProps> = ({
   })
 
   useEffect(() => {
-    if (!workflowCanvasWidth)
-      return
-
-    // If the total width of the three exceeds the canvas, shrink the node panel to the available range (at least 400px)
-    const total = nodePanelWidth + otherPanelWidth + reservedCanvasWidth
-    if (total > workflowCanvasWidth) {
-      const target = Math.max(workflowCanvasWidth - otherPanelWidth - reservedCanvasWidth, 400)
-      debounceUpdate(target)
-    }
+    const compressedWidth = getCompressedNodePanelWidth(nodePanelWidth, workflowCanvasWidth, otherPanelWidth, reservedCanvasWidth)
+    if (compressedWidth !== undefined)
+      debounceUpdate(compressedWidth)
   }, [nodePanelWidth, otherPanelWidth, workflowCanvasWidth, debounceUpdate])
 
   const { handleNodeSelect } = useNodesInteractions()
@@ -284,21 +262,17 @@ const BasePanel: FC<BasePanelProps> = ({
 
   const storeBuildInTools = useStore(s => s.buildInTools)
   const { data: buildInTools } = useAllBuiltInTools()
-  const currToolCollection = useMemo(() => {
-    const candidates = buildInTools ?? storeBuildInTools
-    return candidates?.find(item => canFindTool(item.id, data.provider_id))
-  }, [buildInTools, storeBuildInTools, data.provider_id])
+  const currToolCollection = useMemo(
+    () => getCurrentToolCollection(buildInTools, storeBuildInTools, data.provider_id),
+    [buildInTools, storeBuildInTools, data.provider_id],
+  )
   const needsToolAuth = useMemo(() => {
     return data.type === BlockEnum.Tool && currToolCollection?.allow_delete
   }, [data.type, currToolCollection?.allow_delete])
 
   // only fetch trigger plugins when the node is a trigger plugin
   const { data: triggerPlugins = [] } = useAllTriggerPlugins(data.type === BlockEnum.TriggerPlugin)
-  const currentTriggerPlugin = useMemo(() => {
-    if (data.type !== BlockEnum.TriggerPlugin || !data.plugin_id || !triggerPlugins?.length)
-      return undefined
-    return triggerPlugins?.find(p => p.plugin_id === data.plugin_id)
-  }, [data.type, data.plugin_id, triggerPlugins])
+  const currentTriggerPlugin = useMemo(() => getCurrentTriggerPlugin(data, triggerPlugins), [data, triggerPlugins])
   const { setDetail } = usePluginStore()
 
   useEffect(() => {
@@ -321,10 +295,7 @@ const BasePanel: FC<BasePanelProps> = ({
 
   const dataSourceList = useStore(s => s.dataSourceList)
 
-  const currentDataSource = useMemo(() => {
-    if (data.type === BlockEnum.DataSource && data.provider_type !== DataSourceClassification.localFile)
-      return dataSourceList?.find(item => item.plugin_id === data.plugin_id)
-  }, [data.type, data.provider_type, data.plugin_id, dataSourceList])
+  const currentDataSource = useMemo(() => getCurrentDataSource(data, dataSourceList), [data, dataSourceList])
 
   const handleAuthorizationItemClick = useCallback((credential_id: string) => {
     handleNodeDataUpdateWithSyncDraft({

web/app/components/workflow/nodes/_base/components/workflow-panel/last-run/__tests__/index.spec.tsx

@@ -0,0 +1,235 @@
+import { act, render, screen } from '@testing-library/react'
+import { NodeRunningStatus } from '@/app/components/workflow/types'
+import LastRun from '../index'
+
+const mockUseHooksStore = vi.hoisted(() => vi.fn())
+const mockUseLastRun = vi.hoisted(() => vi.fn())
+const mockResultPanel = vi.hoisted(() => vi.fn())
+
+vi.mock('@remixicon/react', () => ({
+  RiLoader2Line: () => <div data-testid="loading-icon" />,
+}))
+
+vi.mock('@/app/components/workflow/hooks-store', () => ({
+  useHooksStore: (selector: (state: {
+    configsMap?: { flowType?: string, flowId?: string }
+  }) => unknown) => mockUseHooksStore(selector),
+}))
+
+vi.mock('@/service/use-workflow', () => ({
+  useLastRun: (...args: unknown[]) => mockUseLastRun(...args),
+}))
+
+vi.mock('@/app/components/workflow/run/result-panel', () => ({
+  __esModule: true,
+  default: (props: Record<string, unknown>) => {
+    mockResultPanel(props)
+    return <div data-testid="result-panel">{String(props.status)}</div>
+  },
+}))
+
+vi.mock('../no-data', () => ({
+  __esModule: true,
+  default: ({ onSingleRun }: { onSingleRun: () => void }) => (
+    <button type="button" onClick={onSingleRun}>
+      no-data
+    </button>
+  ),
+}))
+
+describe('LastRun', () => {
+  const updateNodeRunningStatus = vi.fn()
+  const onSingleRunClicked = vi.fn()
+  let visibilityState = 'visible'
+
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockUseHooksStore.mockImplementation((selector: (state: {
+      configsMap?: { flowType?: string, flowId?: string }
+    }) => unknown) => selector({
+      configsMap: {
+        flowType: 'appFlow',
+        flowId: 'flow-1',
+      },
+    }))
+    mockUseLastRun.mockReturnValue({
+      data: undefined,
+      isFetching: false,
+      error: undefined,
+    })
+    visibilityState = 'visible'
+    Object.defineProperty(document, 'visibilityState', {
+      configurable: true,
+      get: () => visibilityState,
+    })
+  })
+
+  it('should show a loader while fetching the last run before any single run starts', () => {
+    mockUseLastRun.mockReturnValue({
+      data: undefined,
+      isFetching: true,
+      error: undefined,
+    })
+
+    render(
+      <LastRun
+        appId="app-1"
+        nodeId="node-1"
+        canSingleRun
+        isRunAfterSingleRun={false}
+        updateNodeRunningStatus={updateNodeRunningStatus}
+        onSingleRunClicked={onSingleRunClicked}
+      />,
+    )
+
+    expect(screen.getByTestId('loading-icon')).toBeInTheDocument()
+    expect(screen.queryByTestId('result-panel')).not.toBeInTheDocument()
+  })
+
+  it('should show a running result panel while a single run is still executing', () => {
+    render(
+      <LastRun
+        appId="app-1"
+        nodeId="node-1"
+        canSingleRun
+        isRunAfterSingleRun
+        updateNodeRunningStatus={updateNodeRunningStatus}
+        onSingleRunClicked={onSingleRunClicked}
+        runningStatus={NodeRunningStatus.Running}
+      />,
+    )
+
+    expect(screen.getByTestId('result-panel')).toHaveTextContent('running')
+    expect(mockResultPanel).toHaveBeenCalledWith(expect.objectContaining({
+      status: 'running',
+      showSteps: false,
+    }))
+  })
+
+  it('should render the no-data state for 404 last-run responses and forward single-run clicks', () => {
+    mockUseLastRun.mockReturnValue({
+      data: undefined,
+      isFetching: false,
+      error: { status: 404 },
+    })
+
+    render(
+      <LastRun
+        appId="app-1"
+        nodeId="node-1"
+        canSingleRun
+        isRunAfterSingleRun={false}
+        updateNodeRunningStatus={updateNodeRunningStatus}
+        onSingleRunClicked={onSingleRunClicked}
+      />,
+    )
+
+    act(() => {
+      screen.getByText('no-data').click()
+    })
+
+    expect(onSingleRunClicked).toHaveBeenCalledTimes(1)
+  })
+
+  it('should render resolved result data and let paused state override the final status', () => {
+    mockUseLastRun.mockReturnValue({
+      data: {
+        status: NodeRunningStatus.Succeeded,
+        execution_metadata: { total_tokens: 9 },
+        created_by_account: { created_by: 'Alice' },
+      },
+      isFetching: false,
+      error: undefined,
+    })
+
+    render(
+      <LastRun
+        appId="app-1"
+        nodeId="node-1"
+        canSingleRun
+        isRunAfterSingleRun
+        updateNodeRunningStatus={updateNodeRunningStatus}
+        onSingleRunClicked={onSingleRunClicked}
+        runningStatus={NodeRunningStatus.Succeeded}
+        isPaused
+      />,
+    )
+
+    expect(screen.getByTestId('result-panel')).toHaveTextContent(NodeRunningStatus.Stopped)
+    expect(mockResultPanel).toHaveBeenCalledWith(expect.objectContaining({
+      status: NodeRunningStatus.Stopped,
+      total_tokens: 9,
+      created_by: 'Alice',
+      showSteps: false,
+    }))
+  })
+
+  it('should respect stopped and listening one-step statuses', () => {
+    mockUseLastRun.mockReturnValue({
+      data: {
+        status: NodeRunningStatus.Succeeded,
+      },
+      isFetching: false,
+      error: undefined,
+    })
+
+    const { rerender } = render(
+      <LastRun
+        appId="app-1"
+        nodeId="node-1"
+        canSingleRun
+        isRunAfterSingleRun
+        updateNodeRunningStatus={updateNodeRunningStatus}
+        onSingleRunClicked={onSingleRunClicked}
+        runningStatus={NodeRunningStatus.Stopped}
+      />,
+    )
+
+    expect(screen.getByTestId('result-panel')).toHaveTextContent(NodeRunningStatus.Stopped)
+
+    rerender(
+      <LastRun
+        appId="app-1"
+        nodeId="node-1"
+        canSingleRun
+        isRunAfterSingleRun
+        updateNodeRunningStatus={updateNodeRunningStatus}
+        onSingleRunClicked={onSingleRunClicked}
+        runningStatus={NodeRunningStatus.Listening}
+      />,
+    )
+
+    expect(screen.getByTestId('result-panel')).toHaveTextContent(NodeRunningStatus.Listening)
+  })
+
+  it('should react to page visibility changes while keeping the current result rendered', () => {
+    mockUseLastRun.mockReturnValue({
+      data: {
+        status: NodeRunningStatus.Succeeded,
+      },
+      isFetching: false,
+      error: undefined,
+    })
+
+    render(
+      <LastRun
+        appId="app-1"
+        nodeId="node-1"
+        canSingleRun
+        isRunAfterSingleRun
+        updateNodeRunningStatus={updateNodeRunningStatus}
+        onSingleRunClicked={onSingleRunClicked}
+        runningStatus={NodeRunningStatus.Succeeded}
+      />,
+    )
+
+    act(() => {
+      visibilityState = 'hidden'
+      document.dispatchEvent(new Event('visibilitychange'))
+      visibilityState = 'visible'
+      document.dispatchEvent(new Event('visibilitychange'))
+    })
+
+    expect(screen.getByTestId('result-panel')).toHaveTextContent(NodeRunningStatus.Succeeded)
+  })
+})

web/app/components/workflow/nodes/_base/node-sections.tsx

@@ -0,0 +1,94 @@
+import type { TFunction } from 'i18next'
+import type { ReactElement } from 'react'
+import type { IterationNodeType } from '@/app/components/workflow/nodes/iteration/types'
+import type { NodeProps } from '@/app/components/workflow/types'
+import { Tooltip, TooltipContent, TooltipTrigger } from '@/app/components/base/ui/tooltip'
+import { BlockEnum, NodeRunningStatus } from '@/app/components/workflow/types'
+
+type HeaderMetaProps = {
+  data: NodeProps['data']
+  hasVarValue: boolean
+  isLoading: boolean
+  loopIndex: ReactElement | null
+  t: TFunction
+}
+
+export const NodeHeaderMeta = ({
+  data,
+  hasVarValue,
+  isLoading,
+  loopIndex,
+  t,
+}: HeaderMetaProps) => {
+  return (
+    <>
+      {data.type === BlockEnum.Iteration && (data as IterationNodeType).is_parallel && (
+        <Tooltip>
+          <TooltipTrigger>
+            <div className="ml-1 flex items-center justify-center rounded-[5px] border-[1px] border-text-warning px-[5px] py-[3px] text-text-warning system-2xs-medium-uppercase">
+              {t('nodes.iteration.parallelModeUpper', { ns: 'workflow' })}
+            </div>
+          </TooltipTrigger>
+          <TooltipContent popupClassName="w-[180px]">
+            <div className="font-extrabold">
+              {t('nodes.iteration.parallelModeEnableTitle', { ns: 'workflow' })}
+            </div>
+            {t('nodes.iteration.parallelModeEnableDesc', { ns: 'workflow' })}
+          </TooltipContent>
+        </Tooltip>
+      )}
+      {!!(data._iterationLength && data._iterationIndex && data._runningStatus === NodeRunningStatus.Running) && (
+        <div className="mr-1.5 text-xs font-medium text-text-accent">
+          {data._iterationIndex > data._iterationLength ? data._iterationLength : data._iterationIndex}
+          /
+          {data._iterationLength}
+        </div>
+      )}
+      {!!(data.type === BlockEnum.Loop && data._loopIndex) && loopIndex}
+      {isLoading && <span className="i-ri-loader-2-line h-3.5 w-3.5 animate-spin text-text-accent" />}
+      {!isLoading && data._runningStatus === NodeRunningStatus.Failed && (
+        <span className="i-ri-error-warning-fill h-3.5 w-3.5 text-text-destructive" />
+      )}
+      {!isLoading && data._runningStatus === NodeRunningStatus.Exception && (
+        <span className="i-ri-alert-fill h-3.5 w-3.5 text-text-warning-secondary" />
+      )}
+      {!isLoading && (data._runningStatus === NodeRunningStatus.Succeeded || (!data._runningStatus && hasVarValue)) && (
+        <span className="i-ri-checkbox-circle-fill h-3.5 w-3.5 text-text-success" />
+      )}
+      {!isLoading && data._runningStatus === NodeRunningStatus.Paused && (
+        <span className="i-ri-pause-circle-fill h-3.5 w-3.5 text-text-warning-secondary" />
+      )}
+    </>
+  )
+}
+
+type NodeBodyProps = {
+  data: NodeProps['data']
+  child: ReactElement
+}
+
+export const NodeBody = ({
+  data,
+  child,
+}: NodeBodyProps) => {
+  if (data.type === BlockEnum.Iteration || data.type === BlockEnum.Loop) {
+    return (
+      <div className="grow pb-1 pl-1 pr-1">
+        {child}
+      </div>
+    )
+  }
+
+  return child
+}
+
+export const NodeDescription = ({ data }: { data: NodeProps['data'] }) => {
+  if (!data.desc || data.type === BlockEnum.Iteration || data.type === BlockEnum.Loop)
+    return null
+
+  return (
+    <div className="whitespace-pre-line break-words px-3 pb-2 pt-1 text-text-tertiary system-xs-regular">
+      {data.desc}
+    </div>
+  )
+}

web/app/components/workflow/nodes/_base/node.helpers.tsx

@@ -0,0 +1,32 @@
+import type { NodeProps } from '@/app/components/workflow/types'
+import { BlockEnum, isTriggerNode, NodeRunningStatus } from '@/app/components/workflow/types'
+
+export const getNodeStatusBorders = (
+  runningStatus: NodeRunningStatus | undefined,
+  hasVarValue: boolean,
+  showSelectedBorder: boolean,
+) => {
+  return {
+    showRunningBorder: (runningStatus === NodeRunningStatus.Running || runningStatus === NodeRunningStatus.Paused) && !showSelectedBorder,
+    showSuccessBorder: (runningStatus === NodeRunningStatus.Succeeded || (hasVarValue && !runningStatus)) && !showSelectedBorder,
+    showFailedBorder: runningStatus === NodeRunningStatus.Failed && !showSelectedBorder,
+    showExceptionBorder: runningStatus === NodeRunningStatus.Exception && !showSelectedBorder,
+  }
+}
+
+export const getLoopIndexTextKey = (runningStatus: NodeRunningStatus | undefined) => {
+  if (runningStatus === NodeRunningStatus.Running)
+    return 'nodes.loop.currentLoopCount'
+  if (runningStatus === NodeRunningStatus.Succeeded || runningStatus === NodeRunningStatus.Failed)
+    return 'nodes.loop.totalLoopCount'
+
+  return undefined
+}
+
+export const isEntryWorkflowNode = (type: NodeProps['data']['type']) => {
+  return isTriggerNode(type) || type === BlockEnum.Start
+}
+
+export const isContainerNode = (type: NodeProps['data']['type']) => {
+  return type === BlockEnum.Iteration || type === BlockEnum.Loop
+}

web/app/components/workflow/nodes/_base/node.tsx

@@ -2,17 +2,14 @@ import type {
   FC,
   ReactElement,
 } from 'react'
-import type { IterationNodeType } from '@/app/components/workflow/nodes/iteration/types'
 import type { NodeProps } from '@/app/components/workflow/types'
 import {
   cloneElement,
   memo,
-  useEffect,
   useMemo,
   useRef,
 } from 'react'
 import { useTranslation } from 'react-i18next'
-import Tooltip from '@/app/components/base/tooltip'
 import BlockIcon from '@/app/components/workflow/block-icon'
 import { ToolTypeEnum } from '@/app/components/workflow/block-selector/types'
 import { useNodesReadOnly, useToolIcon } from '@/app/components/workflow/hooks'
@@ -23,7 +20,6 @@ import { useNodeLoopInteractions } from '@/app/components/workflow/nodes/loop/us
 import CopyID from '@/app/components/workflow/nodes/tool/components/copy-id'
 import {
   BlockEnum,
-  isTriggerNode,
   NodeRunningStatus,
 } from '@/app/components/workflow/types'
 import { hasErrorHandleNode, hasRetryNode } from '@/app/components/workflow/utils'
@@ -38,6 +34,18 @@ import {
 } from './components/node-handle'
 import NodeResizer from './components/node-resizer'
 import RetryOnNode from './components/retry/retry-on-node'
+import {
+  NodeBody,
+  NodeDescription,
+  NodeHeaderMeta,
+} from './node-sections'
+import {
+  getLoopIndexTextKey,
+  getNodeStatusBorders,
+  isContainerNode,
+  isEntryWorkflowNode,
+} from './node.helpers'
+import useNodeResizeObserver from './use-node-resize-observer'
 
 type NodeChildProps = {
   id: string
@@ -65,59 +73,34 @@ const BaseNode: FC<BaseNodeProps> = ({
   const { shouldDim: pluginDimmed, isChecking: pluginIsChecking, isMissing: pluginIsMissing, canInstall: pluginCanInstall, uniqueIdentifier: pluginUniqueIdentifier } = useNodePluginInstallation(data)
   const pluginInstallLocked = !pluginIsChecking && pluginIsMissing && pluginCanInstall && Boolean(pluginUniqueIdentifier)
 
-  useEffect(() => {
-    if (nodeRef.current && data.selected && data.isInIteration) {
-      const resizeObserver = new ResizeObserver(() => {
-        handleNodeIterationChildSizeChange(id)
-      })
+  useNodeResizeObserver({
+    enabled: Boolean(data.selected && data.isInIteration),
+    nodeRef,
+    onResize: () => handleNodeIterationChildSizeChange(id),
+  })
 
-      resizeObserver.observe(nodeRef.current)
-
-      return () => {
-        resizeObserver.disconnect()
-      }
-    }
-  }, [data.isInIteration, data.selected, id, handleNodeIterationChildSizeChange])
-
-  useEffect(() => {
-    if (nodeRef.current && data.selected && data.isInLoop) {
-      const resizeObserver = new ResizeObserver(() => {
-        handleNodeLoopChildSizeChange(id)
-      })
-
-      resizeObserver.observe(nodeRef.current)
-
-      return () => {
-        resizeObserver.disconnect()
-      }
-    }
-  }, [data.isInLoop, data.selected, id, handleNodeLoopChildSizeChange])
+  useNodeResizeObserver({
+    enabled: Boolean(data.selected && data.isInLoop),
+    nodeRef,
+    onResize: () => handleNodeLoopChildSizeChange(id),
+  })
 
   const { hasNodeInspectVars } = useInspectVarsCrud()
   const isLoading = data._runningStatus === NodeRunningStatus.Running || data._singleRunningStatus === NodeRunningStatus.Running
   const hasVarValue = hasNodeInspectVars(id)
-  const showSelectedBorder = data.selected || data._isBundled || data._isEntering
+  const showSelectedBorder = Boolean(data.selected || data._isBundled || data._isEntering)
   const {
     showRunningBorder,
     showSuccessBorder,
     showFailedBorder,
     showExceptionBorder,
-  } = useMemo(() => {
-    return {
-      showRunningBorder: (data._runningStatus === NodeRunningStatus.Running || data._runningStatus === NodeRunningStatus.Paused) && !showSelectedBorder,
-      showSuccessBorder: (data._runningStatus === NodeRunningStatus.Succeeded || (hasVarValue && !data._runningStatus)) && !showSelectedBorder,
-      showFailedBorder: data._runningStatus === NodeRunningStatus.Failed && !showSelectedBorder,
-      showExceptionBorder: data._runningStatus === NodeRunningStatus.Exception && !showSelectedBorder,
-    }
-  }, [data._runningStatus, hasVarValue, showSelectedBorder])
+  } = useMemo(() => getNodeStatusBorders(data._runningStatus, hasVarValue, showSelectedBorder), [data._runningStatus, hasVarValue, showSelectedBorder])
 
   const LoopIndex = useMemo(() => {
-    let text = ''
-
-    if (data._runningStatus === NodeRunningStatus.Running)
-      text = t('nodes.loop.currentLoopCount', { ns: 'workflow', count: data._loopIndex })
-    if (data._runningStatus === NodeRunningStatus.Succeeded || data._runningStatus === NodeRunningStatus.Failed)
-      text = t('nodes.loop.totalLoopCount', { ns: 'workflow', count: data._loopIndex })
+    const translationKey = getLoopIndexTextKey(data._runningStatus)
+    const text = translationKey
+      ? t(translationKey, { ns: 'workflow', count: data._loopIndex })
+      : ''
 
     if (text) {
       return (
@@ -145,8 +128,8 @@ const BaseNode: FC<BaseNodeProps> = ({
       )}
       ref={nodeRef}
       style={{
-        width: (data.type === BlockEnum.Iteration || data.type === BlockEnum.Loop) ? data.width : 'auto',
-        height: (data.type === BlockEnum.Iteration || data.type === BlockEnum.Loop) ? data.height : 'auto',
+        width: isContainerNode(data.type) ? data.width : 'auto',
+        height: isContainerNode(data.type) ? data.height : 'auto',
       }}
     >
       {(data._dimmed || pluginDimmed || pluginInstallLocked) && (
@@ -174,8 +157,8 @@ const BaseNode: FC<BaseNodeProps> = ({
         className={cn(
           'group relative pb-1 shadow-xs',
           'rounded-[15px] border border-transparent',
-          (data.type !== BlockEnum.Iteration && data.type !== BlockEnum.Loop) && 'w-[240px] bg-workflow-block-bg',
-          (data.type === BlockEnum.Iteration || data.type === BlockEnum.Loop) && 'flex h-full w-full flex-col border-workflow-block-border bg-workflow-block-bg-transparent',
+          !isContainerNode(data.type) && 'w-[240px] bg-workflow-block-bg',
+          isContainerNode(data.type) && 'flex h-full w-full flex-col border-workflow-block-border bg-workflow-block-bg-transparent',
           !data._runningStatus && 'hover:shadow-lg',
           showRunningBorder && '!border-state-accent-solid',
           showSuccessBorder && '!border-state-success-solid',
@@ -239,7 +222,7 @@ const BaseNode: FC<BaseNodeProps> = ({
         }
         <div className={cn(
           'flex items-center rounded-t-2xl px-3 pb-2 pt-3',
-          (data.type === BlockEnum.Iteration || data.type === BlockEnum.Loop) && 'bg-transparent',
+          isContainerNode(data.type) && 'bg-transparent',
         )}
         >
           <BlockIcon
@@ -255,72 +238,19 @@ const BaseNode: FC<BaseNodeProps> = ({
             <div>
               {data.title}
             </div>
-            {
-              data.type === BlockEnum.Iteration && (data as IterationNodeType).is_parallel && (
-                <Tooltip popupContent={(
-                  <div className="w-[180px]">
-                    <div className="font-extrabold">
-                      {t('nodes.iteration.parallelModeEnableTitle', { ns: 'workflow' })}
-                    </div>
-                    {t('nodes.iteration.parallelModeEnableDesc', { ns: 'workflow' })}
-                  </div>
-                )}
-                >
-                  <div className="ml-1 flex items-center justify-center rounded-[5px] border-[1px] border-text-warning px-[5px] py-[3px] text-text-warning system-2xs-medium-uppercase">
-                    {t('nodes.iteration.parallelModeUpper', { ns: 'workflow' })}
-                  </div>
-                </Tooltip>
-              )
-            }
           </div>
-          {
-            !!(data._iterationLength && data._iterationIndex && data._runningStatus === NodeRunningStatus.Running) && (
-              <div className="mr-1.5 text-xs font-medium text-text-accent">
-                {data._iterationIndex > data._iterationLength ? data._iterationLength : data._iterationIndex}
-                /
-                {data._iterationLength}
-              </div>
-            )
-          }
-          {
-            !!(data.type === BlockEnum.Loop && data._loopIndex) && LoopIndex
-          }
-          {
-            isLoading && <span className="i-ri-loader-2-line h-3.5 w-3.5 animate-spin text-text-accent" />
-          }
-          {
-            !isLoading && data._runningStatus === NodeRunningStatus.Failed && (
-              <span className="i-ri-error-warning-fill h-3.5 w-3.5 text-text-destructive" />
-            )
-          }
-          {
-            !isLoading && data._runningStatus === NodeRunningStatus.Exception && (
-              <span className="i-ri-alert-fill h-3.5 w-3.5 text-text-warning-secondary" />
-            )
-          }
-          {
-            !isLoading && (data._runningStatus === NodeRunningStatus.Succeeded || (hasVarValue && !data._runningStatus)) && (
-              <span className="i-ri-checkbox-circle-fill h-3.5 w-3.5 text-text-success" />
-            )
-          }
-          {
-            !isLoading && data._runningStatus === NodeRunningStatus.Paused && (
-              <span className="i-ri-pause-circle-fill h-3.5 w-3.5 text-text-warning-secondary" />
-            )
-          }
+          <NodeHeaderMeta
+            data={data}
+            hasVarValue={hasVarValue}
+            isLoading={isLoading}
+            loopIndex={LoopIndex}
+            t={t}
+          />
         </div>
-        {
-          data.type !== BlockEnum.Iteration && data.type !== BlockEnum.Loop && (
-            cloneElement(children, { id, data } as any)
-          )
-        }
-        {
-          (data.type === BlockEnum.Iteration || data.type === BlockEnum.Loop) && (
-            <div className="grow pb-1 pl-1 pr-1">
-              {cloneElement(children, { id, data } as any)}
-            </div>
-          )
-        }
+        <NodeBody
+          data={data}
+          child={cloneElement(children, { id, data } as any)}
+        />
         {
           hasRetryNode(data.type) && (
             <RetryOnNode
@@ -337,13 +267,7 @@ const BaseNode: FC<BaseNodeProps> = ({
             />
           )
         }
-        {
-          !!(data.desc && data.type !== BlockEnum.Iteration && data.type !== BlockEnum.Loop) && (
-            <div className="whitespace-pre-line break-words px-3 pb-2 pt-1 text-text-tertiary system-xs-regular">
-              {data.desc}
-            </div>
-          )
-        }
+        <NodeDescription data={data} />
         {data.type === BlockEnum.Tool && data.provider_type === ToolTypeEnum.MCP && (
           <div className="px-3 pb-2">
             <CopyID content={data.provider_id || ''} />
@@ -354,7 +278,7 @@ const BaseNode: FC<BaseNodeProps> = ({
   )
 
   const isStartNode = data.type === BlockEnum.Start
-  const isEntryNode = isTriggerNode(data.type as any) || isStartNode
+  const isEntryNode = isEntryWorkflowNode(data.type)
 
   return isEntryNode
     ? (

web/app/components/workflow/nodes/_base/use-node-resize-observer.ts

@@ -0,0 +1,30 @@
+import { useEffect } from 'react'
+
+type ResizeObserverParams = {
+  enabled: boolean
+  nodeRef: React.RefObject<HTMLDivElement | null>
+  onResize: () => void
+}
+
+const useNodeResizeObserver = ({
+  enabled,
+  nodeRef,
+  onResize,
+}: ResizeObserverParams) => {
+  useEffect(() => {
+    if (!enabled || !nodeRef.current)
+      return
+
+    const resizeObserver = new ResizeObserver(() => {
+      onResize()
+    })
+
+    resizeObserver.observe(nodeRef.current)
+
+    return () => {
+      resizeObserver.disconnect()
+    }
+  }, [enabled, nodeRef, onResize])
+}
+
+export default useNodeResizeObserver

web/app/components/workflow/nodes/data-source/hooks/__tests__/use-config.spec.ts

@@ -0,0 +1,139 @@
+import type { DataSourceNodeType } from '../../types'
+import { renderHook } from '@testing-library/react'
+import { VarType as VarKindType } from '../../types'
+import { useConfig } from '../use-config'
+
+const mockUseStoreApi = vi.hoisted(() => vi.fn())
+const mockUseNodeDataUpdate = vi.hoisted(() => vi.fn())
+
+vi.mock('reactflow', () => ({
+  useStoreApi: () => mockUseStoreApi(),
+}))
+
+vi.mock('@/app/components/workflow/hooks', () => ({
+  useNodeDataUpdate: () => mockUseNodeDataUpdate(),
+}))
+
+const createNode = (overrides: Partial<DataSourceNodeType> = {}): { id: string, data: DataSourceNodeType } => ({
+  id: 'data-source-node',
+  data: {
+    title: 'Datasource',
+    desc: '',
+    type: 'data-source',
+    plugin_id: 'plugin-1',
+    provider_type: 'local_file',
+    provider_name: 'provider',
+    datasource_name: 'source-a',
+    datasource_label: 'Source A',
+    datasource_parameters: {},
+    datasource_configurations: {},
+    _dataSourceStartToAdd: true,
+    ...overrides,
+  } as DataSourceNodeType,
+})
+
+describe('data-source/hooks/use-config', () => {
+  const mockHandleNodeDataUpdateWithSyncDraft = vi.fn()
+  let currentNode = createNode()
+
+  beforeEach(() => {
+    vi.clearAllMocks()
+    currentNode = createNode()
+
+    mockUseStoreApi.mockReturnValue({
+      getState: () => ({
+        getNodes: () => [currentNode],
+      }),
+    })
+    mockUseNodeDataUpdate.mockReturnValue({
+      handleNodeDataUpdateWithSyncDraft: mockHandleNodeDataUpdateWithSyncDraft,
+    })
+  })
+
+  it('should clear the local-file auto-add flag on mount and update datasource payloads', () => {
+    const { result } = renderHook(() => useConfig('data-source-node'))
+
+    expect(mockHandleNodeDataUpdateWithSyncDraft).toHaveBeenCalledWith({
+      id: 'data-source-node',
+      data: expect.objectContaining({
+        _dataSourceStartToAdd: false,
+      }),
+    })
+
+    mockHandleNodeDataUpdateWithSyncDraft.mockClear()
+    result.current.handleFileExtensionsChange(['pdf', 'csv'])
+    result.current.handleParametersChange({
+      dataset: {
+        type: VarKindType.constant,
+        value: 'docs',
+      },
+    })
+
+    expect(mockHandleNodeDataUpdateWithSyncDraft).toHaveBeenNthCalledWith(1, {
+      id: 'data-source-node',
+      data: expect.objectContaining({
+        fileExtensions: ['pdf', 'csv'],
+      }),
+    })
+    expect(mockHandleNodeDataUpdateWithSyncDraft).toHaveBeenNthCalledWith(2, {
+      id: 'data-source-node',
+      data: expect.objectContaining({
+        datasource_parameters: {
+          dataset: {
+            type: VarKindType.constant,
+            value: 'docs',
+          },
+        },
+      }),
+    })
+  })
+
+  it('should derive output schema metadata and detect object outputs', () => {
+    const dataSourceList = [{
+      plugin_id: 'plugin-1',
+      tools: [{
+        name: 'source-a',
+        output_schema: {
+          properties: {
+            items: {
+              type: 'array',
+              items: { type: 'string' },
+              description: 'List of items',
+            },
+            metadata: {
+              type: 'object',
+              description: 'Object field',
+            },
+            count: {
+              type: 'number',
+              description: 'Total count',
+            },
+          },
+        },
+      }],
+    }]
+
+    const { result } = renderHook(() => useConfig('data-source-node', dataSourceList))
+
+    expect(result.current.outputSchema).toEqual([
+      {
+        name: 'items',
+        type: 'Array[String]',
+        description: 'List of items',
+      },
+      {
+        name: 'metadata',
+        value: {
+          type: 'object',
+          description: 'Object field',
+        },
+      },
+      {
+        name: 'count',
+        type: 'Number',
+        description: 'Total count',
+      },
+    ])
+    expect(result.current.hasObjectOutput).toBe(true)
+  })
+})

web/app/components/workflow/nodes/human-input/components/__tests__/button-style-dropdown.spec.tsx

@@ -0,0 +1,149 @@
+import { fireEvent, render, screen } from '@testing-library/react'
+import * as React from 'react'
+import { UserActionButtonType } from '../../types'
+import ButtonStyleDropdown from '../button-style-dropdown'
+
+const mockUseTranslation = vi.hoisted(() => vi.fn())
+const mockButton = vi.hoisted(() => vi.fn())
+
+vi.mock('react-i18next', () => ({
+  useTranslation: () => mockUseTranslation(),
+}))
+
+vi.mock('@/app/components/base/button', () => ({
+  __esModule: true,
+  default: (props: {
+    variant?: string
+    children?: React.ReactNode
+    className?: string
+  }) => {
+    mockButton(props)
+    return <div data-testid={`button-${props.variant ?? 'default'}`}>{props.children}</div>
+  },
+}))
+
+vi.mock('@/app/components/base/portal-to-follow-elem', () => {
+  const OpenContext = React.createContext(false)
+
+  return {
+    PortalToFollowElem: ({
+      open,
+      children,
+    }: {
+      open: boolean
+      children?: React.ReactNode
+    }) => (
+      <OpenContext value={open}>
+        <div data-testid="portal" data-open={String(open)}>{children}</div>
+      </OpenContext>
+    ),
+    PortalToFollowElemTrigger: ({
+      children,
+      onClick,
+    }: {
+      children?: React.ReactNode
+      onClick?: () => void
+    }) => (
+      <button type="button" data-testid="portal-trigger" onClick={onClick}>
+        {children}
+      </button>
+    ),
+    PortalToFollowElemContent: ({
+      children,
+    }: {
+      children?: React.ReactNode
+    }) => {
+      const open = React.use(OpenContext)
+      return open ? <div data-testid="portal-content">{children}</div> : null
+    },
+  }
+})
+
+describe('ButtonStyleDropdown', () => {
+  const onChange = vi.fn()
+
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockUseTranslation.mockReturnValue({
+      t: (key: string) => key,
+    })
+  })
+
+  it('should map the current style to the trigger button and update the selected style', () => {
+    render(
+      <ButtonStyleDropdown
+        text="Approve"
+        data={UserActionButtonType.Ghost}
+        onChange={onChange}
+      />,
+    )
+
+    expect(mockButton).toHaveBeenCalledWith(expect.objectContaining({
+      variant: 'ghost',
+    }))
+    expect(screen.getByTestId('portal')).toHaveAttribute('data-open', 'false')
+
+    fireEvent.click(screen.getByTestId('portal-trigger'))
+    expect(screen.getByTestId('portal')).toHaveAttribute('data-open', 'true')
+    expect(screen.getByText('nodes.humanInput.userActions.chooseStyle')).toBeInTheDocument()
+
+    fireEvent.click(screen.getByTestId('button-primary').parentElement as HTMLElement)
+    fireEvent.click(screen.getByTestId('button-secondary').parentElement as HTMLElement)
+    fireEvent.click(screen.getByTestId('button-secondary-accent').parentElement as HTMLElement)
+    fireEvent.click(screen.getAllByTestId('button-ghost')[1].parentElement as HTMLElement)
+
+    expect(onChange).toHaveBeenNthCalledWith(1, UserActionButtonType.Primary)
+    expect(onChange).toHaveBeenNthCalledWith(2, UserActionButtonType.Default)
+    expect(onChange).toHaveBeenNthCalledWith(3, UserActionButtonType.Accent)
+    expect(onChange).toHaveBeenNthCalledWith(4, UserActionButtonType.Ghost)
+  })
+
+  it('should keep the dropdown closed in readonly mode', () => {
+    render(
+      <ButtonStyleDropdown
+        text="Approve"
+        data={UserActionButtonType.Default}
+        onChange={onChange}
+        readonly
+      />,
+    )
+
+    expect(mockButton).toHaveBeenCalledWith(expect.objectContaining({
+      variant: 'secondary',
+    }))
+
+    fireEvent.click(screen.getByTestId('portal-trigger'))
+
+    expect(screen.getByTestId('portal')).toHaveAttribute('data-open', 'false')
+    expect(screen.queryByTestId('portal-content')).not.toBeInTheDocument()
+    expect(onChange).not.toHaveBeenCalled()
+  })
+
+  it('should map the accent style to the secondary-accent trigger button', () => {
+    render(
+      <ButtonStyleDropdown
+        text="Approve"
+        data={UserActionButtonType.Accent}
+        onChange={onChange}
+      />,
+    )
+
+    expect(mockButton).toHaveBeenCalledWith(expect.objectContaining({
+      variant: 'secondary-accent',
+    }))
+  })
+
+  it('should map the primary style to the primary trigger button', () => {
+    render(
+      <ButtonStyleDropdown
+        text="Approve"
+        data={UserActionButtonType.Primary}
+        onChange={onChange}
+      />,
+    )
+
+    expect(mockButton).toHaveBeenCalledWith(expect.objectContaining({
+      variant: 'primary',
+    }))
+  })
+})

web/app/components/workflow/nodes/human-input/components/__tests__/form-content-preview.spec.tsx

@@ -0,0 +1,135 @@
+import type { ReactNode } from 'react'
+import { fireEvent, render, screen } from '@testing-library/react'
+import { UserActionButtonType } from '../../types'
+import FormContentPreview from '../form-content-preview'
+
+const mockUseTranslation = vi.hoisted(() => vi.fn())
+const mockUseStore = vi.hoisted(() => vi.fn())
+const mockUseNodes = vi.hoisted(() => vi.fn())
+const mockGetButtonStyle = vi.hoisted(() => vi.fn())
+
+vi.mock('react-i18next', () => ({
+  useTranslation: () => mockUseTranslation(),
+}))
+
+vi.mock('@/app/components/workflow/store', () => ({
+  useStore: (selector: (state: { panelWidth: number }) => unknown) => mockUseStore(selector),
+}))
+
+vi.mock('@/app/components/workflow/store/workflow/use-nodes', () => ({
+  __esModule: true,
+  default: () => mockUseNodes(),
+}))
+
+vi.mock('@/app/components/base/action-button', () => ({
+  __esModule: true,
+  default: ({ children, onClick }: { children?: ReactNode, onClick?: () => void }) => (
+    <button type="button" aria-label="close-preview" onClick={onClick}>
+      {children}
+    </button>
+  ),
+}))
+
+vi.mock('@/app/components/base/badge', () => ({
+  __esModule: true,
+  default: ({ children }: { children?: ReactNode }) => <div data-testid="badge">{children}</div>,
+}))
+
+vi.mock('@/app/components/base/button', () => ({
+  __esModule: true,
+  default: ({ children, variant }: { children?: ReactNode, variant?: string }) => (
+    <button type="button" data-testid={`action-${variant}`}>{children}</button>
+  ),
+}))
+
+vi.mock('@/app/components/base/chat/chat/answer/human-input-content/utils', () => ({
+  getButtonStyle: (...args: unknown[]) => mockGetButtonStyle(...args),
+}))
+
+vi.mock('@/app/components/base/markdown', () => ({
+  Markdown: ({ customComponents }: {
+    customComponents: {
+      variable: (props: { node: { properties: { dataPath: string } } }) => ReactNode
+      section: (props: { node: { properties: { dataName: string } } }) => ReactNode
+    }
+  }) => (
+    <div>
+      {customComponents.variable({ node: { properties: { dataPath: '#node-1.answer#' } } })}
+      {customComponents.section({ node: { properties: { dataName: 'field_1' } } })}
+      {customComponents.section({ node: { properties: { dataName: 'missing_field' } } })}
+    </div>
+  ),
+}))
+
+vi.mock('../variable-in-markdown', () => ({
+  rehypeNotes: vi.fn(),
+  rehypeVariable: vi.fn(),
+  Variable: ({ path }: { path: string }) => <div data-testid="variable-path">{path}</div>,
+  Note: ({ defaultInput, nodeName }: {
+    defaultInput: { selector: string[] }
+    nodeName: (nodeId: string) => string
+  }) => <div data-testid="note">{nodeName(defaultInput.selector[0])}</div>,
+}))
+
+describe('FormContentPreview', () => {
+  const onClose = vi.fn()
+
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockUseTranslation.mockReturnValue({
+      t: (key: string) => key,
+    })
+    mockUseStore.mockImplementation((selector: (state: { panelWidth: number }) => unknown) => selector({ panelWidth: 320 }))
+    mockUseNodes.mockReturnValue([{
+      id: 'node-1',
+      data: { title: 'Classifier' },
+    }])
+    mockGetButtonStyle.mockImplementation((style: UserActionButtonType) => style.toLowerCase())
+  })
+
+  it('should render preview content with resolved node names, note fallbacks, and action buttons', () => {
+    const { container } = render(
+      <FormContentPreview
+        content="content"
+        formInputs={[{
+          type: 'text-input' as never,
+          output_variable_name: 'field_1',
+          default: {
+            type: 'variable',
+            selector: ['node-1', 'answer'],
+            value: '',
+          },
+        }]}
+        userActions={[{
+          id: 'approve',
+          title: 'Approve',
+          button_style: UserActionButtonType.Primary,
+        }]}
+        onClose={onClose}
+      />,
+    )
+
+    expect(container.firstChild).toHaveStyle({ right: '328px' })
+    expect(screen.getByTestId('badge')).toHaveTextContent('nodes.humanInput.formContent.preview')
+    expect(screen.getByTestId('variable-path')).toHaveTextContent('#Classifier.answer#')
+    expect(screen.getByTestId('note')).toHaveTextContent('Classifier')
+    expect(screen.getByText(/Can't find note:/)).toHaveTextContent('missing_field')
+    expect(screen.getByTestId('action-primary')).toHaveTextContent('Approve')
+    expect(screen.getByText('nodes.humanInput.editor.previewTip')).toBeInTheDocument()
+  })
+
+  it('should close the preview when the close action is clicked', () => {
+    render(
+      <FormContentPreview
+        content="content"
+        formInputs={[]}
+        userActions={[]}
+        onClose={onClose}
+      />,
+    )
+
+    fireEvent.click(screen.getByRole('button', { name: 'close-preview' }))
+
+    expect(onClose).toHaveBeenCalledTimes(1)
+  })
+})

web/app/components/workflow/nodes/human-input/components/__tests__/form-content.spec.tsx

@@ -0,0 +1,258 @@
+import type { ReactNode } from 'react'
+import { fireEvent, render, screen, waitFor } from '@testing-library/react'
+import FormContent from '../form-content'
+
+const mockUseTranslation = vi.hoisted(() => vi.fn())
+const mockUseWorkflowVariableType = vi.hoisted(() => vi.fn())
+const mockIsMac = vi.hoisted(() => vi.fn())
+const mockPromptEditor = vi.hoisted(() => vi.fn())
+const mockAddInputField = vi.hoisted(() => vi.fn())
+const mockOnInsert = vi.hoisted(() => vi.fn())
+
+vi.mock('react-i18next', () => ({
+  useTranslation: () => mockUseTranslation(),
+  Trans: ({
+    i18nKey,
+    components,
+  }: {
+    i18nKey: string
+    components?: Record<string, ReactNode>
+  }) => (
+    <div>
+      <div>{i18nKey}</div>
+      {components?.CtrlKey}
+      {components?.Key}
+    </div>
+  ),
+}))
+
+vi.mock('@/app/components/workflow/hooks', () => ({
+  useWorkflowVariableType: () => mockUseWorkflowVariableType(),
+}))
+
+vi.mock('@/app/components/workflow/utils', () => ({
+  isMac: () => mockIsMac(),
+}))
+
+vi.mock('@/app/components/base/prompt-editor', () => ({
+  __esModule: true,
+  default: (props: {
+    onChange: (value: string) => void
+    onFocus: () => void
+    onBlur: () => void
+    shortcutPopups?: Array<{
+      Popup: (props: { onClose: () => void, onInsert: typeof mockOnInsert }) => ReactNode
+    }>
+    editable?: boolean
+    hitlInputBlock: {
+      workflowNodesMap: Record<string, unknown>
+    }
+  }) => {
+    mockPromptEditor(props)
+    const popup = props.shortcutPopups?.[0]
+    return (
+      <div>
+        <button type="button" onClick={props.onFocus}>focus-editor</button>
+        <button type="button" onClick={props.onBlur}>blur-editor</button>
+        <button type="button" onClick={() => props.onChange('updated value')}>change-editor</button>
+        {popup && popup.Popup({ onClose: vi.fn(), onInsert: mockOnInsert })}
+      </div>
+    )
+  },
+}))
+
+vi.mock('../add-input-field', () => ({
+  __esModule: true,
+  default: (props: {
+    onSave: (payload: {
+      type: string
+      output_variable_name: string
+      default: {
+        type: string
+        selector: string[]
+        value: string
+      }
+    }) => void
+    onCancel: () => void
+  }) => {
+    mockAddInputField(props)
+    return (
+      <div>
+        <button
+          type="button"
+          onClick={() => props.onSave({
+            type: 'text-input',
+            output_variable_name: 'approval',
+            default: {
+              type: 'variable',
+              selector: ['node-1', 'answer'],
+              value: '',
+            },
+          })}
+        >
+          save-input
+        </button>
+        <button type="button" onClick={props.onCancel}>cancel-input</button>
+      </div>
+    )
+  },
+}))
+
+vi.mock('@/app/components/base/prompt-editor/plugins/hitl-input-block', () => ({
+  INSERT_HITL_INPUT_BLOCK_COMMAND: 'INSERT_HITL_INPUT_BLOCK_COMMAND',
+}))
+
+describe('FormContent', () => {
+  const onChange = vi.fn()
+  const onFormInputsChange = vi.fn()
+  const onFormInputItemRename = vi.fn()
+  const onFormInputItemRemove = vi.fn()
+
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockUseTranslation.mockReturnValue({
+      t: (key: string) => key,
+    })
+    mockUseWorkflowVariableType.mockReturnValue(() => 'string')
+    mockIsMac.mockReturnValue(false)
+  })
+
+  it('should build workflow node maps, show the hotkey tip on focus, and defer form-input sync until value changes', async () => {
+    const { rerender } = render(
+      <FormContent
+        nodeId="node-2"
+        value="Initial content"
+        onChange={onChange}
+        formInputs={[]}
+        onFormInputsChange={onFormInputsChange}
+        onFormInputItemRename={onFormInputItemRename}
+        onFormInputItemRemove={onFormInputItemRemove}
+        editorKey={1}
+        isExpand={false}
+        availableVars={[]}
+        availableNodes={[
+          {
+            id: 'node-1',
+            data: { title: 'Start', type: 'start' },
+            position: { x: 0, y: 0 },
+            width: 100,
+            height: 40,
+          } as never,
+          {
+            id: 'node-2',
+            data: { title: 'Classifier', type: 'code' },
+            position: { x: 120, y: 0 },
+            width: 100,
+            height: 40,
+          } as never,
+        ]}
+      />,
+    )
+
+    expect(mockPromptEditor).toHaveBeenCalledWith(expect.objectContaining({
+      editable: true,
+      hitlInputBlock: expect.objectContaining({
+        workflowNodesMap: expect.objectContaining({
+          'node-1': expect.objectContaining({ title: 'Start' }),
+          'node-2': expect.objectContaining({ title: 'Classifier' }),
+          'sys': expect.objectContaining({ title: 'blocks.start' }),
+        }),
+      }),
+    }))
+
+    fireEvent.click(screen.getByText('focus-editor'))
+    expect(screen.getByText('nodes.humanInput.formContent.hotkeyTip')).toBeInTheDocument()
+
+    fireEvent.click(screen.getByText('save-input'))
+    expect(mockOnInsert).toHaveBeenCalledWith('INSERT_HITL_INPUT_BLOCK_COMMAND', expect.objectContaining({
+      variableName: 'approval',
+      nodeId: 'node-2',
+      formInputs: [expect.objectContaining({ output_variable_name: 'approval' })],
+      onFormInputsChange,
+      onFormInputItemRename,
+      onFormInputItemRemove,
+    }))
+    expect(onFormInputsChange).not.toHaveBeenCalled()
+
+    rerender(
+      <FormContent
+        nodeId="node-2"
+        value="Initial content {{approval}}"
+        onChange={onChange}
+        formInputs={[]}
+        onFormInputsChange={onFormInputsChange}
+        onFormInputItemRename={onFormInputItemRename}
+        onFormInputItemRemove={onFormInputItemRemove}
+        editorKey={1}
+        isExpand={false}
+        availableVars={[]}
+        availableNodes={[
+          {
+            id: 'node-1',
+            data: { title: 'Start', type: 'start' },
+            position: { x: 0, y: 0 },
+            width: 100,
+            height: 40,
+          } as never,
+        ]}
+      />,
+    )
+
+    await waitFor(() => {
+      expect(onFormInputsChange).toHaveBeenCalledWith([
+        expect.objectContaining({ output_variable_name: 'approval' }),
+      ])
+    })
+  })
+
+  it('should disable editing helpers in readonly mode', () => {
+    const { container } = render(
+      <FormContent
+        nodeId="node-2"
+        value="Initial content"
+        onChange={onChange}
+        formInputs={[]}
+        onFormInputsChange={onFormInputsChange}
+        onFormInputItemRename={onFormInputItemRename}
+        onFormInputItemRemove={onFormInputItemRemove}
+        editorKey={1}
+        isExpand={false}
+        availableVars={[]}
+        availableNodes={[]}
+        readonly
+      />,
+    )
+
+    expect(mockPromptEditor).toHaveBeenCalledWith(expect.objectContaining({
+      editable: false,
+      shortcutPopups: [],
+    }))
+    expect(screen.queryByText('save-input')).not.toBeInTheDocument()
+    expect(container.firstChild).toHaveClass('pointer-events-none')
+  })
+
+  it('should render the mac hotkey hint when focused on macOS', () => {
+    mockIsMac.mockReturnValue(true)
+
+    render(
+      <FormContent
+        nodeId="node-2"
+        value="Initial content"
+        onChange={onChange}
+        formInputs={[]}
+        onFormInputsChange={onFormInputsChange}
+        onFormInputItemRename={onFormInputItemRename}
+        onFormInputItemRemove={onFormInputItemRemove}
+        editorKey={1}
+        isExpand={false}
+        availableVars={[]}
+        availableNodes={[]}
+      />,
+    )
+
+    fireEvent.click(screen.getByText('focus-editor'))
+
+    expect(screen.getByText('⌘')).toBeInTheDocument()
+    expect(screen.getByText('/')).toBeInTheDocument()
+  })
+})

web/app/components/workflow/nodes/human-input/components/__tests__/timeout.spec.tsx

@@ -0,0 +1,77 @@
+import { fireEvent, render, screen } from '@testing-library/react'
+import TimeoutInput from '../timeout'
+
+const mockUseTranslation = vi.hoisted(() => vi.fn())
+
+vi.mock('react-i18next', () => ({
+  useTranslation: () => mockUseTranslation(),
+}))
+
+vi.mock('@/app/components/base/input', () => ({
+  __esModule: true,
+  default: (props: {
+    value: number
+    disabled?: boolean
+    onChange: (event: { target: { value: string } }) => void
+  }) => (
+    <input
+      data-testid="timeout-input"
+      value={props.value}
+      disabled={props.disabled}
+      onChange={e => props.onChange({ target: { value: e.target.value } })}
+    />
+  ),
+}))
+
+describe('TimeoutInput', () => {
+  const onChange = vi.fn()
+
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockUseTranslation.mockReturnValue({
+      t: (key: string) => key,
+    })
+  })
+
+  it('should update the numeric timeout value and switch units', () => {
+    render(
+      <TimeoutInput
+        timeout={3}
+        unit="day"
+        onChange={onChange}
+      />,
+    )
+
+    fireEvent.change(screen.getByTestId('timeout-input'), { target: { value: '12' } })
+    fireEvent.click(screen.getByText('nodes.humanInput.timeout.hours'))
+
+    expect(onChange).toHaveBeenNthCalledWith(1, { timeout: 12, unit: 'day' })
+    expect(onChange).toHaveBeenNthCalledWith(2, { timeout: 3, unit: 'hour' })
+  })
+
+  it('should fall back to 1 on invalid input and stay read-only when disabled', () => {
+    const { rerender } = render(
+      <TimeoutInput
+        timeout={5}
+        unit="hour"
+        onChange={onChange}
+      />,
+    )
+
+    fireEvent.change(screen.getByTestId('timeout-input'), { target: { value: 'abc' } })
+    expect(onChange).toHaveBeenCalledWith({ timeout: 1, unit: 'hour' })
+
+    rerender(
+      <TimeoutInput
+        timeout={5}
+        unit="hour"
+        onChange={onChange}
+        readonly
+      />,
+    )
+
+    fireEvent.click(screen.getByText('nodes.humanInput.timeout.days'))
+    expect(onChange).toHaveBeenCalledTimes(1)
+    expect(screen.getByTestId('timeout-input')).toBeDisabled()
+  })
+})

web/app/components/workflow/nodes/human-input/components/__tests__/user-action.spec.tsx

@@ -0,0 +1,146 @@
+import type { ReactNode } from 'react'
+import { fireEvent, render, screen } from '@testing-library/react'
+import { UserActionButtonType } from '../../types'
+import UserActionItem from '../user-action'
+
+const mockUseTranslation = vi.hoisted(() => vi.fn())
+const mockNotify = vi.hoisted(() => vi.fn())
+
+vi.mock('react-i18next', () => ({
+  useTranslation: () => mockUseTranslation(),
+}))
+
+vi.mock('@/app/components/base/input', () => ({
+  __esModule: true,
+  default: (props: {
+    value: string
+    placeholder?: string
+    disabled?: boolean
+    onChange: (event: { target: { value: string } }) => void
+  }) => (
+    <input
+      data-testid={props.placeholder}
+      value={props.value}
+      disabled={props.disabled}
+      onChange={e => props.onChange({ target: { value: e.target.value } })}
+    />
+  ),
+}))
+
+vi.mock('@/app/components/base/button', () => ({
+  __esModule: true,
+  default: (props: {
+    children?: ReactNode
+    onClick?: () => void
+  }) => (
+    <button type="button" onClick={props.onClick}>
+      {props.children}
+    </button>
+  ),
+}))
+
+vi.mock('@/app/components/base/ui/toast', () => ({
+  __esModule: true,
+  toast: {
+    success: (message: string) => mockNotify({ type: 'success', message }),
+    error: (message: string) => mockNotify({ type: 'error', message }),
+    warning: (message: string) => mockNotify({ type: 'warning', message }),
+    info: (message: string) => mockNotify({ type: 'info', message }),
+  },
+}))
+
+vi.mock('../button-style-dropdown', () => ({
+  __esModule: true,
+  default: (props: {
+    onChange: (type: UserActionButtonType) => void
+  }) => (
+    <button type="button" onClick={() => props.onChange(UserActionButtonType.Ghost)}>
+      change-style
+    </button>
+  ),
+}))
+
+describe('UserActionItem', () => {
+  const onChange = vi.fn()
+  const onDelete = vi.fn()
+  const action = {
+    id: 'approve',
+    title: 'Approve',
+    button_style: UserActionButtonType.Primary,
+  }
+
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockUseTranslation.mockReturnValue({
+      t: (key: string) => key,
+    })
+  })
+
+  it('should sanitize ids, enforce length limits, and update the button text', () => {
+    render(
+      <UserActionItem
+        data={action}
+        onChange={onChange}
+        onDelete={onDelete}
+      />,
+    )
+
+    fireEvent.change(screen.getByTestId('nodes.humanInput.userActions.actionNamePlaceholder'), { target: { value: 'Approve action' } })
+    fireEvent.change(screen.getByTestId('nodes.humanInput.userActions.actionNamePlaceholder'), { target: { value: '1invalid' } })
+    fireEvent.change(screen.getByTestId('nodes.humanInput.userActions.actionNamePlaceholder'), { target: { value: 'averyveryveryverylongidentifier' } })
+    fireEvent.change(screen.getByTestId('nodes.humanInput.userActions.buttonTextPlaceholder'), { target: { value: 'A very very very long button title' } })
+
+    expect(onChange).toHaveBeenNthCalledWith(1, expect.objectContaining({
+      id: 'Approve_action',
+    }))
+    expect(onChange).toHaveBeenNthCalledWith(2, expect.objectContaining({
+      id: 'averyveryveryverylon',
+    }))
+    expect(onChange).toHaveBeenNthCalledWith(3, expect.objectContaining({
+      title: 'A very very very lon',
+    }))
+    expect(mockNotify).toHaveBeenNthCalledWith(1, expect.objectContaining({
+      type: 'error',
+      message: 'nodes.humanInput.userActions.actionIdFormatTip',
+    }))
+    expect(mockNotify).toHaveBeenNthCalledWith(2, expect.objectContaining({
+      type: 'error',
+      message: 'nodes.humanInput.userActions.actionIdTooLong',
+    }))
+    expect(mockNotify).toHaveBeenNthCalledWith(3, expect.objectContaining({
+      type: 'error',
+      message: 'nodes.humanInput.userActions.buttonTextTooLong',
+    }))
+  })
+
+  it('should support clearing ids, updating button style, deleting, and readonly mode', () => {
+    const { rerender } = render(
+      <UserActionItem
+        data={action}
+        onChange={onChange}
+        onDelete={onDelete}
+      />,
+    )
+
+    fireEvent.change(screen.getByTestId('nodes.humanInput.userActions.actionNamePlaceholder'), { target: { value: '   ' } })
+    fireEvent.click(screen.getByText('change-style'))
+    fireEvent.click(screen.getAllByRole('button')[1])
+
+    expect(onChange).toHaveBeenNthCalledWith(1, expect.objectContaining({ id: '' }))
+    expect(onChange).toHaveBeenNthCalledWith(2, expect.objectContaining({ button_style: UserActionButtonType.Ghost }))
+    expect(onDelete).toHaveBeenCalledWith('approve')
+
+    rerender(
+      <UserActionItem
+        data={action}
+        onChange={onChange}
+        onDelete={onDelete}
+        readonly
+      />,
+    )
+
+    expect(screen.getByTestId('nodes.humanInput.userActions.actionNamePlaceholder')).toBeDisabled()
+    expect(screen.getByTestId('nodes.humanInput.userActions.buttonTextPlaceholder')).toBeDisabled()
+    expect(screen.getAllByRole('button')).toHaveLength(1)
+  })
+})

web/app/components/workflow/nodes/human-input/components/delivery-method/__tests__/index.spec.tsx

@@ -0,0 +1,150 @@
+import { fireEvent, render, screen } from '@testing-library/react'
+import { DeliveryMethodType } from '../../../types'
+import DeliveryMethodForm from '../index'
+
+const mockUseTranslation = vi.hoisted(() => vi.fn())
+const mockUseNodesSyncDraft = vi.hoisted(() => vi.fn())
+
+vi.mock('react-i18next', () => ({
+  useTranslation: () => mockUseTranslation(),
+}))
+
+vi.mock('@/app/components/base/tooltip', () => ({
+  __esModule: true,
+  default: ({ popupContent }: { popupContent: string }) => <div data-testid="tooltip">{popupContent}</div>,
+}))
+
+vi.mock('@/app/components/workflow/hooks', () => ({
+  useNodesSyncDraft: () => mockUseNodesSyncDraft(),
+}))
+
+vi.mock('../method-selector', () => ({
+  __esModule: true,
+  default: (props: {
+    onAdd: (method: { id: string, type: DeliveryMethodType, enabled: boolean }) => void
+    onShowUpgradeTip: () => void
+  }) => (
+    <div>
+      <button
+        type="button"
+        onClick={() => props.onAdd({ id: 'email-1', type: DeliveryMethodType.Email, enabled: false })}
+      >
+        add-method
+      </button>
+      <button type="button" onClick={props.onShowUpgradeTip}>
+        show-upgrade
+      </button>
+    </div>
+  ),
+}))
+
+vi.mock('../method-item', () => ({
+  __esModule: true,
+  default: (props: {
+    method: { type: DeliveryMethodType, enabled: boolean }
+    onChange: (method: { type: DeliveryMethodType, enabled: boolean }) => void
+    onDelete: (type: DeliveryMethodType) => void
+  }) => (
+    <div data-testid={`method-${props.method.type}`}>
+      <button
+        type="button"
+        onClick={() => props.onChange({ ...props.method, enabled: !props.method.enabled })}
+      >
+        change-method
+      </button>
+      <button
+        type="button"
+        onClick={() => props.onDelete(props.method.type)}
+      >
+        delete-method
+      </button>
+    </div>
+  ),
+}))
+
+vi.mock('../upgrade-modal', () => ({
+  __esModule: true,
+  default: ({ onClose }: { onClose: () => void }) => (
+    <button type="button" onClick={onClose}>
+      upgrade-modal
+    </button>
+  ),
+}))
+
+describe('DeliveryMethodForm', () => {
+  const onChange = vi.fn()
+  const mockHandleSyncWorkflowDraft = vi.fn()
+
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockUseTranslation.mockReturnValue({
+      t: (key: string) => key,
+    })
+    mockUseNodesSyncDraft.mockReturnValue({
+      handleSyncWorkflowDraft: mockHandleSyncWorkflowDraft,
+    })
+  })
+
+  it('should render the empty state and add methods through the selector', () => {
+    render(
+      <DeliveryMethodForm
+        nodeId="node-1"
+        value={[]}
+        onChange={onChange}
+      />,
+    )
+
+    expect(screen.getByText('nodes.humanInput.deliveryMethod.emptyTip')).toBeInTheDocument()
+    fireEvent.click(screen.getByText('add-method'))
+
+    expect(onChange).toHaveBeenCalledWith([
+      {
+        id: 'email-1',
+        type: DeliveryMethodType.Email,
+        enabled: false,
+      },
+    ])
+    expect(mockHandleSyncWorkflowDraft).not.toHaveBeenCalled()
+  })
+
+  it('should change and delete methods, syncing the draft after updates', () => {
+    render(
+      <DeliveryMethodForm
+        nodeId="node-1"
+        value={[{
+          id: 'email-1',
+          type: DeliveryMethodType.Email,
+          enabled: false,
+        }]}
+        onChange={onChange}
+      />,
+    )
+
+    fireEvent.click(screen.getByText('change-method'))
+    fireEvent.click(screen.getByText('delete-method'))
+
+    expect(onChange).toHaveBeenNthCalledWith(1, [{
+      id: 'email-1',
+      type: DeliveryMethodType.Email,
+      enabled: true,
+    }])
+    expect(onChange).toHaveBeenNthCalledWith(2, [])
+    expect(mockHandleSyncWorkflowDraft).toHaveBeenCalledWith(true, true)
+  })
+
+  it('should open and close the upgrade modal', () => {
+    render(
+      <DeliveryMethodForm
+        nodeId="node-1"
+        value={[]}
+        onChange={onChange}
+      />,
+    )
+
+    fireEvent.click(screen.getByText('show-upgrade'))
+    expect(screen.getByText('upgrade-modal')).toBeInTheDocument()
+
+    fireEvent.click(screen.getByText('upgrade-modal'))
+    expect(screen.queryByText('upgrade-modal')).not.toBeInTheDocument()
+  })
+})

web/app/components/workflow/nodes/human-input/components/delivery-method/recipient/__tests__/index.spec.tsx

@@ -0,0 +1,156 @@
+import { fireEvent, render, screen } from '@testing-library/react'
+import Recipient from '../index'
+
+const mockUseTranslation = vi.hoisted(() => vi.fn())
+const mockUseAppContext = vi.hoisted(() => vi.fn())
+const mockUseMembers = vi.hoisted(() => vi.fn())
+
+vi.mock('react-i18next', () => ({
+  useTranslation: () => mockUseTranslation(),
+}))
+
+vi.mock('@/context/app-context', () => ({
+  useAppContext: () => mockUseAppContext(),
+}))
+
+vi.mock('@/service/use-common', () => ({
+  useMembers: () => mockUseMembers(),
+}))
+
+vi.mock('@/app/components/base/switch', () => ({
+  __esModule: true,
+  default: (props: {
+    value: boolean
+    onChange: (value: boolean) => void
+  }) => (
+    <button type="button" onClick={() => props.onChange(!props.value)}>
+      toggle-workspace
+    </button>
+  ),
+}))
+
+vi.mock('../member-selector', () => ({
+  __esModule: true,
+  default: ({ onSelect }: { onSelect: (id: string) => void }) => (
+    <button type="button" onClick={() => onSelect('member-2')}>
+      add-member
+    </button>
+  ),
+}))
+
+vi.mock('../email-input', () => ({
+  __esModule: true,
+  default: (props: {
+    onAdd: (email: string) => void
+    onSelect: (id: string) => void
+    onDelete: (recipient: { type: 'member' | 'external', user_id?: string, email?: string }) => void
+  }) => (
+    <div>
+      <button type="button" onClick={() => props.onAdd('new@example.com')}>
+        add-email
+      </button>
+      <button type="button" onClick={() => props.onSelect('member-3')}>
+        add-email-member
+      </button>
+      <button type="button" onClick={() => props.onDelete({ type: 'member', user_id: 'member-1' })}>
+        delete-member
+      </button>
+      <button type="button" onClick={() => props.onDelete({ type: 'external', email: 'external@example.com' })}>
+        delete-external
+      </button>
+    </div>
+  ),
+}))
+
+describe('Recipient', () => {
+  const onChange = vi.fn()
+
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockUseTranslation.mockReturnValue({
+      t: (key: string, options?: { workspaceName?: string }) => options?.workspaceName ?? key,
+    })
+    mockUseAppContext.mockReturnValue({
+      userProfile: { email: 'owner@example.com' },
+      currentWorkspace: { name: 'Dify\'s Lab' },
+    })
+    mockUseMembers.mockReturnValue({
+      data: {
+        accounts: [
+          { id: 'member-1', email: 'member-1@example.com', name: 'Member One' },
+          { id: 'member-2', email: 'member-2@example.com', name: 'Member Two' },
+          { id: 'member-3', email: 'member-3@example.com', name: 'Member Three' },
+        ],
+      },
+    })
+  })
+
+  it('should render workspace details and update recipients through member/email actions', () => {
+    render(
+      <Recipient
+        data={{
+          whole_workspace: false,
+          items: [
+            { type: 'member', user_id: 'member-1' },
+            { type: 'external', email: 'external@example.com' },
+          ],
+        }}
+        onChange={onChange}
+      />,
+    )
+
+    expect(screen.getByText('D')).toBeInTheDocument()
+    expect(screen.getByText('Dify’s Lab')).toBeInTheDocument()
+
+    fireEvent.click(screen.getByText('add-member'))
+    fireEvent.click(screen.getByText('add-email'))
+    fireEvent.click(screen.getByText('add-email-member'))
+    fireEvent.click(screen.getByText('delete-member'))
+    fireEvent.click(screen.getByText('delete-external'))
+    fireEvent.click(screen.getByText('toggle-workspace'))
+
+    expect(onChange).toHaveBeenNthCalledWith(1, {
+      whole_workspace: false,
+      items: [
+        { type: 'member', user_id: 'member-1' },
+        { type: 'external', email: 'external@example.com' },
+        { type: 'member', user_id: 'member-2' },
+      ],
+    })
+    expect(onChange).toHaveBeenNthCalledWith(2, {
+      whole_workspace: false,
+      items: [
+        { type: 'member', user_id: 'member-1' },
+        { type: 'external', email: 'external@example.com' },
+        { type: 'external', email: 'new@example.com' },
+      ],
+    })
+    expect(onChange).toHaveBeenNthCalledWith(3, {
+      whole_workspace: false,
+      items: [
+        { type: 'member', user_id: 'member-1' },
+        { type: 'external', email: 'external@example.com' },
+        { type: 'member', user_id: 'member-3' },
+      ],
+    })
+    expect(onChange).toHaveBeenNthCalledWith(4, {
+      whole_workspace: false,
+      items: [
+        { type: 'external', email: 'external@example.com' },
+      ],
+    })
+    expect(onChange).toHaveBeenNthCalledWith(5, {
+      whole_workspace: false,
+      items: [
+        { type: 'member', user_id: 'member-1' },
+      ],
+    })
+    expect(onChange).toHaveBeenNthCalledWith(6, {
+      whole_workspace: true,
+      items: [
+        { type: 'member', user_id: 'member-1' },
+        { type: 'external', email: 'external@example.com' },
+      ],
+    })
+  })
+})

web/app/components/workflow/nodes/human-input/hooks/__tests__/use-config.spec.ts

@@ -0,0 +1,156 @@
+import type { DeliveryMethod, HumanInputNodeType, UserAction } from '../../types'
+import { act, renderHook } from '@testing-library/react'
+import { BlockEnum } from '@/app/components/workflow/types'
+import useConfig from '../use-config'
+
+const mockUseUpdateNodeInternals = vi.hoisted(() => vi.fn())
+const mockUseNodesReadOnly = vi.hoisted(() => vi.fn())
+const mockUseEdgesInteractions = vi.hoisted(() => vi.fn())
+const mockUseNodeCrud = vi.hoisted(() => vi.fn())
+const mockUseFormContent = vi.hoisted(() => vi.fn())
+
+vi.mock('reactflow', () => ({
+  useUpdateNodeInternals: () => mockUseUpdateNodeInternals(),
+}))
+
+vi.mock('@/app/components/workflow/hooks', () => ({
+  useNodesReadOnly: () => mockUseNodesReadOnly(),
+}))
+
+vi.mock('@/app/components/workflow/hooks/use-edges-interactions', () => ({
+  useEdgesInteractions: () => mockUseEdgesInteractions(),
+}))
+
+vi.mock('@/app/components/workflow/nodes/_base/hooks/use-node-crud', () => ({
+  __esModule: true,
+  default: (...args: unknown[]) => mockUseNodeCrud(...args),
+}))
+
+vi.mock('../use-form-content', () => ({
+  __esModule: true,
+  default: (...args: unknown[]) => mockUseFormContent(...args),
+}))
+
+const createPayload = (overrides: Partial<HumanInputNodeType> = {}): HumanInputNodeType => ({
+  title: 'Human Input',
+  desc: '',
+  type: BlockEnum.HumanInput,
+  delivery_methods: [{
+    id: 'webapp',
+    type: 'webapp',
+    enabled: true,
+  } as DeliveryMethod],
+  form_content: 'Body',
+  inputs: [],
+  user_actions: [{
+    id: 'approve',
+    title: 'Approve',
+    button_style: 'primary',
+  } as UserAction],
+  timeout: 3,
+  timeout_unit: 'day',
+  ...overrides,
+})
+
+describe('human-input/hooks/use-config', () => {
+  const mockSetInputs = vi.fn()
+  const mockHandleEdgeDeleteByDeleteBranch = vi.fn()
+  const mockHandleEdgeSourceHandleChange = vi.fn()
+  const mockUpdateNodeInternals = vi.fn()
+  const formContentHook = {
+    editorKey: 3,
+    handleFormContentChange: vi.fn(),
+    handleFormInputsChange: vi.fn(),
+    handleFormInputItemRename: vi.fn(),
+    handleFormInputItemRemove: vi.fn(),
+  }
+  let currentInputs = createPayload()
+
+  beforeEach(() => {
+    vi.clearAllMocks()
+    currentInputs = createPayload()
+    mockUseUpdateNodeInternals.mockReturnValue(mockUpdateNodeInternals)
+    mockUseNodesReadOnly.mockReturnValue({ nodesReadOnly: false })
+    mockUseEdgesInteractions.mockReturnValue({
+      handleEdgeDeleteByDeleteBranch: mockHandleEdgeDeleteByDeleteBranch,
+      handleEdgeSourceHandleChange: mockHandleEdgeSourceHandleChange,
+    })
+    mockUseNodeCrud.mockImplementation(() => ({
+      inputs: currentInputs,
+      setInputs: mockSetInputs,
+    }))
+    mockUseFormContent.mockReturnValue(formContentHook)
+  })
+
+  it('should expose form-content helpers and update delivery methods, timeout, and collapsed state', () => {
+    const { result } = renderHook(() => useConfig('human-input-node', currentInputs))
+    const methods = [{
+      id: 'email',
+      type: 'email',
+      enabled: true,
+    } as DeliveryMethod]
+
+    expect(result.current.editorKey).toBe(3)
+    expect(result.current.readOnly).toBe(false)
+    expect(result.current.structuredOutputCollapsed).toBe(true)
+
+    act(() => {
+      result.current.handleDeliveryMethodChange(methods)
+      result.current.handleTimeoutChange({ timeout: 12, unit: 'hour' })
+      result.current.setStructuredOutputCollapsed(false)
+    })
+
+    expect(mockSetInputs).toHaveBeenNthCalledWith(1, expect.objectContaining({
+      delivery_methods: methods,
+    }))
+    expect(mockSetInputs).toHaveBeenNthCalledWith(2, expect.objectContaining({
+      timeout: 12,
+      timeout_unit: 'hour',
+    }))
+    expect(result.current.structuredOutputCollapsed).toBe(false)
+  })
+
+  it('should append and delete user actions while syncing branch-edge cleanup', () => {
+    const { result } = renderHook(() => useConfig('human-input-node', currentInputs))
+    const newAction = {
+      id: 'reject',
+      title: 'Reject',
+      button_style: 'default',
+    } as UserAction
+
+    act(() => {
+      result.current.handleUserActionAdd(newAction)
+      result.current.handleUserActionDelete('approve')
+    })
+
+    expect(mockSetInputs).toHaveBeenNthCalledWith(1, expect.objectContaining({
+      user_actions: [
+        expect.objectContaining({ id: 'approve' }),
+        newAction,
+      ],
+    }))
+    expect(mockSetInputs).toHaveBeenNthCalledWith(2, expect.objectContaining({
+      user_actions: [],
+    }))
+    expect(mockHandleEdgeDeleteByDeleteBranch).toHaveBeenCalledWith('human-input-node', 'approve')
+  })
+
+  it('should update user action ids and refresh source handles when the branch key changes', () => {
+    const { result } = renderHook(() => useConfig('human-input-node', currentInputs))
+    const renamedAction = {
+      id: 'approved',
+      title: 'Approve',
+      button_style: 'primary',
+    } as UserAction
+
+    act(() => {
+      result.current.handleUserActionChange(0, renamedAction)
+    })
+
+    expect(mockSetInputs).toHaveBeenCalledWith(expect.objectContaining({
+      user_actions: [renamedAction],
+    }))
+    expect(mockHandleEdgeSourceHandleChange).toHaveBeenCalledWith('human-input-node', 'approve', 'approved')
+    expect(mockUpdateNodeInternals).toHaveBeenCalledWith('human-input-node')
+  })
+})

web/app/components/workflow/nodes/human-input/hooks/__tests__/use-form-content.spec.ts

@@ -0,0 +1,112 @@
+import type { FormInputItem, HumanInputNodeType } from '../../types'
+import { act, renderHook } from '@testing-library/react'
+import { BlockEnum, InputVarType } from '@/app/components/workflow/types'
+import useFormContent from '../use-form-content'
+
+const mockUseWorkflow = vi.hoisted(() => vi.fn())
+const mockUseNodeCrud = vi.hoisted(() => vi.fn())
+
+vi.mock('@/app/components/workflow/hooks', () => ({
+  useWorkflow: () => mockUseWorkflow(),
+}))
+
+vi.mock('@/app/components/workflow/nodes/_base/hooks/use-node-crud', () => ({
+  __esModule: true,
+  default: (...args: unknown[]) => mockUseNodeCrud(...args),
+}))
+
+const createFormInput = (overrides: Partial<FormInputItem> = {}): FormInputItem => ({
+  type: InputVarType.textInput,
+  output_variable_name: 'old_name',
+  default: {
+    selector: [],
+    type: 'constant',
+    value: '',
+  },
+  ...overrides,
+})
+
+const createPayload = (overrides: Partial<HumanInputNodeType> = {}): HumanInputNodeType => ({
+  title: 'Human Input',
+  desc: '',
+  type: BlockEnum.HumanInput,
+  delivery_methods: [],
+  form_content: 'Hello {{#$output.old_name#}}',
+  inputs: [createFormInput()],
+  user_actions: [],
+  timeout: 1,
+  timeout_unit: 'day',
+  ...overrides,
+})
+
+describe('human-input/use-form-content', () => {
+  const mockSetInputs = vi.fn()
+  const mockHandleOutVarRenameChange = vi.fn()
+  let currentInputs = createPayload()
+
+  beforeEach(() => {
+    vi.clearAllMocks()
+    currentInputs = createPayload()
+    mockUseWorkflow.mockReturnValue({
+      handleOutVarRenameChange: mockHandleOutVarRenameChange,
+    })
+    mockUseNodeCrud.mockImplementation(() => ({
+      inputs: currentInputs,
+      setInputs: mockSetInputs,
+    }))
+  })
+
+  it('should update raw form content and replace the form input list', () => {
+    const { result } = renderHook(() => useFormContent('human-input-node', currentInputs))
+    const nextInputs = [
+      createFormInput({
+        output_variable_name: 'approval',
+      }),
+    ]
+
+    act(() => {
+      result.current.handleFormContentChange('Updated body')
+      result.current.handleFormInputsChange(nextInputs)
+    })
+
+    expect(mockSetInputs).toHaveBeenNthCalledWith(1, expect.objectContaining({
+      form_content: 'Updated body',
+    }))
+    expect(mockSetInputs).toHaveBeenNthCalledWith(2, expect.objectContaining({
+      inputs: nextInputs,
+    }))
+    expect(result.current.editorKey).toBe(1)
+  })
+
+  it('should rename input placeholders inside markdown and notify downstream references', () => {
+    const { result } = renderHook(() => useFormContent('human-input-node', currentInputs))
+    const renamedInput = createFormInput({
+      output_variable_name: 'new_name',
+    })
+
+    act(() => {
+      result.current.handleFormInputItemRename(renamedInput, 'old_name')
+    })
+
+    expect(mockSetInputs).toHaveBeenCalledWith(expect.objectContaining({
+      form_content: 'Hello {{#$output.new_name#}}',
+      inputs: [renamedInput],
+    }))
+    expect(mockHandleOutVarRenameChange).toHaveBeenCalledWith('human-input-node', ['human-input-node', 'old_name'], ['human-input-node', 'new_name'])
+    expect(result.current.editorKey).toBe(1)
+  })
+
+  it('should remove an input placeholder and its form input metadata', () => {
+    const { result } = renderHook(() => useFormContent('human-input-node', currentInputs))
+
+    act(() => {
+      result.current.handleFormInputItemRemove('old_name')
+    })
+
+    expect(mockSetInputs).toHaveBeenCalledWith(expect.objectContaining({
+      form_content: 'Hello ',
+      inputs: [],
+    }))
+    expect(result.current.editorKey).toBe(1)
+  })
+})

web/app/components/workflow/nodes/human-input/hooks/__tests__/use-single-run-form-params.spec.ts

@@ -0,0 +1,234 @@
+import type { HumanInputNodeType } from '../../types'
+import type { InputVar } from '@/app/components/workflow/types'
+import type { HumanInputFormData } from '@/types/workflow'
+import { act, renderHook } from '@testing-library/react'
+import { BlockEnum, InputVarType } from '@/app/components/workflow/types'
+import { AppModeEnum } from '@/types/app'
+import useSingleRunFormParams from '../use-single-run-form-params'
+
+const mockUseTranslation = vi.hoisted(() => vi.fn())
+const mockUseAppStore = vi.hoisted(() => vi.fn())
+const mockFetchHumanInputNodeStepRunForm = vi.hoisted(() => vi.fn())
+const mockSubmitHumanInputNodeStepRunForm = vi.hoisted(() => vi.fn())
+const mockUseNodeCrud = vi.hoisted(() => vi.fn())
+
+vi.mock('react-i18next', () => ({
+  useTranslation: () => mockUseTranslation(),
+}))
+
+vi.mock('@/app/components/app/store', () => ({
+  useStore: (selector: (state: { appDetail?: { id?: string, mode?: AppModeEnum } }) => unknown) => mockUseAppStore(selector),
+}))
+
+vi.mock('@/service/workflow', () => ({
+  fetchHumanInputNodeStepRunForm: (...args: unknown[]) => mockFetchHumanInputNodeStepRunForm(...args),
+  submitHumanInputNodeStepRunForm: (...args: unknown[]) => mockSubmitHumanInputNodeStepRunForm(...args),
+}))
+
+vi.mock('@/app/components/workflow/nodes/_base/hooks/use-node-crud', () => ({
+  __esModule: true,
+  default: (...args: unknown[]) => mockUseNodeCrud(...args),
+}))
+
+const createPayload = (overrides: Partial<HumanInputNodeType> = {}): HumanInputNodeType => ({
+  title: 'Human Input',
+  desc: '',
+  type: BlockEnum.HumanInput,
+  delivery_methods: [],
+  form_content: 'Summary: {{#start.topic#}}',
+  inputs: [{
+    type: InputVarType.textInput,
+    output_variable_name: 'summary',
+    default: {
+      type: 'variable',
+      selector: ['start', 'topic'],
+      value: '',
+    },
+  }],
+  user_actions: [],
+  timeout: 1,
+  timeout_unit: 'day',
+  ...overrides,
+})
+
+const createInputVar = (overrides: Partial<InputVar> = {}): InputVar => ({
+  type: InputVarType.textInput,
+  label: 'Topic',
+  variable: '#start.topic#',
+  required: false,
+  value_selector: ['start', 'topic'],
+  ...overrides,
+})
+
+const mockFormData: HumanInputFormData = {
+  form_id: 'form-1',
+  node_id: 'node-1',
+  node_title: 'Human Input',
+  form_content: 'Rendered content',
+  inputs: [],
+  actions: [],
+  form_token: 'token-1',
+  resolved_default_values: {
+    topic: 'AI',
+  },
+  display_in_ui: true,
+  expiration_time: 1000,
+}
+
+describe('human-input/hooks/use-single-run-form-params', () => {
+  const mockSetRunInputData = vi.fn()
+  const getInputVars = vi.fn()
+  let currentInputs = createPayload()
+  let appDetail: { id?: string, mode?: AppModeEnum } | undefined
+
+  beforeEach(() => {
+    vi.clearAllMocks()
+    currentInputs = createPayload()
+    appDetail = {
+      id: 'app-1',
+      mode: AppModeEnum.WORKFLOW,
+    }
+
+    mockUseTranslation.mockReturnValue({
+      t: (key: string) => key,
+    })
+    mockUseAppStore.mockImplementation((selector: (state: { appDetail?: { id?: string, mode?: AppModeEnum } }) => unknown) => selector({ appDetail }))
+    mockUseNodeCrud.mockImplementation(() => ({
+      inputs: currentInputs,
+    }))
+    getInputVars.mockReturnValue([
+      createInputVar(),
+      createInputVar({
+        label: 'Output',
+        variable: '#$output.answer#',
+        value_selector: ['$output', 'answer'],
+      }),
+      {
+        ...createInputVar({
+          label: 'Broken',
+        }),
+        variable: undefined,
+      } as unknown as InputVar,
+    ])
+    mockFetchHumanInputNodeStepRunForm.mockResolvedValue(mockFormData)
+    mockSubmitHumanInputNodeStepRunForm.mockResolvedValue({})
+  })
+
+  it('should build a single before-run form, filter output vars, and expose dependent vars', () => {
+    const { result } = renderHook(() => useSingleRunFormParams({
+      id: 'node-1',
+      payload: currentInputs,
+      runInputData: { topic: 'AI' },
+      getInputVars,
+      setRunInputData: mockSetRunInputData,
+    }))
+
+    expect(getInputVars).toHaveBeenCalledWith([
+      '{{#start.topic#}}',
+      'Summary: {{#start.topic#}}',
+    ])
+    expect(result.current.forms).toHaveLength(1)
+    expect(result.current.forms[0]).toEqual(expect.objectContaining({
+      label: 'nodes.humanInput.singleRun.label',
+      values: { topic: 'AI' },
+      inputs: [
+        expect.objectContaining({ variable: '#start.topic#' }),
+        expect.objectContaining({ label: 'Broken' }),
+      ],
+    }))
+
+    act(() => {
+      result.current.forms[0].onChange?.({ topic: 'Updated' })
+    })
+
+    expect(mockSetRunInputData).toHaveBeenCalledWith({ topic: 'Updated' })
+    expect(result.current.getDependentVars()).toEqual([
+      ['start', 'topic'],
+    ])
+  })
+
+  it('should fetch and submit generated forms in workflow mode while keeping required inputs', async () => {
+    const { result } = renderHook(() => useSingleRunFormParams({
+      id: 'node-1',
+      payload: currentInputs,
+      runInputData: {},
+      getInputVars,
+      setRunInputData: mockSetRunInputData,
+    }))
+
+    await act(async () => {
+      await result.current.handleShowGeneratedForm({
+        topic: 'AI',
+        ignored: undefined as unknown as string,
+      })
+    })
+
+    expect(result.current.showGeneratedForm).toBe(true)
+    expect(mockFetchHumanInputNodeStepRunForm).toHaveBeenCalledWith(
+      '/apps/app-1/workflows/draft/human-input/nodes/node-1/form',
+      {
+        inputs: { topic: 'AI' },
+      },
+    )
+    expect(result.current.formData).toEqual(mockFormData)
+
+    await act(async () => {
+      await result.current.handleSubmitHumanInputForm({
+        inputs: { answer: 'approved' },
+        form_inputs: { ignored: 'value' },
+        action: 'approve',
+      })
+    })
+
+    expect(mockSubmitHumanInputNodeStepRunForm).toHaveBeenCalledWith(
+      '/apps/app-1/workflows/draft/human-input/nodes/node-1/form',
+      {
+        inputs: { topic: 'AI' },
+        form_inputs: { answer: 'approved' },
+        action: 'approve',
+      },
+    )
+
+    act(() => {
+      result.current.handleHideGeneratedForm()
+    })
+
+    expect(result.current.showGeneratedForm).toBe(false)
+  })
+
+  it('should use the advanced-chat endpoint and skip remote fetches when app detail is missing', async () => {
+    appDetail = {
+      id: 'app-2',
+      mode: AppModeEnum.ADVANCED_CHAT,
+    }
+
+    const { result, rerender } = renderHook(() => useSingleRunFormParams({
+      id: 'node-9',
+      payload: currentInputs,
+      runInputData: {},
+      getInputVars,
+      setRunInputData: mockSetRunInputData,
+    }))
+
+    await act(async () => {
+      await result.current.handleFetchFormContent({ topic: 'hello' })
+    })
+
+    expect(mockFetchHumanInputNodeStepRunForm).toHaveBeenCalledWith(
+      '/apps/app-2/advanced-chat/workflows/draft/human-input/nodes/node-9/form',
+      {
+        inputs: { topic: 'hello' },
+      },
+    )
+
+    appDetail = undefined
+    rerender()
+
+    await act(async () => {
+      const data = await result.current.handleFetchFormContent({ topic: 'skip' })
+      expect(data).toBeNull()
+    })
+
+    expect(mockFetchHumanInputNodeStepRunForm).toHaveBeenCalledTimes(1)
+  })
+})

web/app/components/workflow/nodes/iteration/__tests__/use-config.spec.ts

@@ -0,0 +1,173 @@
+import type { IterationNodeType } from '../types'
+import type { Item } from '@/app/components/base/select'
+import type { Var } from '@/app/components/workflow/types'
+import { act, renderHook } from '@testing-library/react'
+import { VarType as VarKindType } from '@/app/components/workflow/nodes/tool/types'
+import { BlockEnum, ErrorHandleMode, VarType } from '@/app/components/workflow/types'
+import useConfig from '../use-config'
+
+const mockUseInspectVarsCrud = vi.hoisted(() => vi.fn())
+const mockUseNodesReadOnly = vi.hoisted(() => vi.fn())
+const mockUseIsChatMode = vi.hoisted(() => vi.fn())
+const mockUseWorkflow = vi.hoisted(() => vi.fn())
+const mockUseStore = vi.hoisted(() => vi.fn())
+const mockUseNodeCrud = vi.hoisted(() => vi.fn())
+const mockUseAllBuiltInTools = vi.hoisted(() => vi.fn())
+const mockUseAllCustomTools = vi.hoisted(() => vi.fn())
+const mockUseAllWorkflowTools = vi.hoisted(() => vi.fn())
+const mockUseAllMCPTools = vi.hoisted(() => vi.fn())
+const mockToNodeOutputVars = vi.hoisted(() => vi.fn())
+
+vi.mock('@/app/components/workflow/hooks/use-inspect-vars-crud', () => ({
+  __esModule: true,
+  default: (...args: unknown[]) => mockUseInspectVarsCrud(...args),
+}))
+
+vi.mock('@/app/components/workflow/hooks', () => ({
+  useNodesReadOnly: () => mockUseNodesReadOnly(),
+  useIsChatMode: () => mockUseIsChatMode(),
+  useWorkflow: () => mockUseWorkflow(),
+}))
+
+vi.mock('@/app/components/workflow/store', () => ({
+  useStore: (selector: (state: { dataSourceList: unknown[] }) => unknown) =>
+    selector({ dataSourceList: mockUseStore() }),
+}))
+
+vi.mock('@/app/components/workflow/nodes/_base/hooks/use-node-crud', () => ({
+  __esModule: true,
+  default: (...args: unknown[]) => mockUseNodeCrud(...args),
+}))
+
+vi.mock('@/service/use-tools', () => ({
+  useAllBuiltInTools: () => mockUseAllBuiltInTools(),
+  useAllCustomTools: () => mockUseAllCustomTools(),
+  useAllWorkflowTools: () => mockUseAllWorkflowTools(),
+  useAllMCPTools: () => mockUseAllMCPTools(),
+}))
+
+vi.mock('@/app/components/workflow/nodes/_base/components/variable/utils', () => ({
+  toNodeOutputVars: (...args: unknown[]) => mockToNodeOutputVars(...args),
+}))
+
+const createPayload = (overrides: Partial<IterationNodeType> = {}): IterationNodeType => ({
+  title: 'Iteration',
+  desc: '',
+  type: BlockEnum.Iteration,
+  iterator_selector: ['start', 'items'],
+  iterator_input_type: VarType.arrayString,
+  output_selector: ['child', 'result'],
+  output_type: VarType.arrayString,
+  is_parallel: false,
+  parallel_nums: 3,
+  error_handle_mode: ErrorHandleMode.Terminated,
+  flatten_output: false,
+  start_node_id: 'start-node',
+  _children: [],
+  _isShowTips: false,
+  ...overrides,
+})
+
+const createVar = (type: VarType, variable = 'test.variable'): Var => ({
+  variable,
+  type,
+})
+
+describe('iteration/use-config', () => {
+  const mockSetInputs = vi.fn()
+  const mockDeleteNodeInspectorVars = vi.fn()
+  let currentInputs = createPayload()
+
+  beforeEach(() => {
+    vi.clearAllMocks()
+    currentInputs = createPayload()
+
+    mockUseInspectVarsCrud.mockReturnValue({
+      deleteNodeInspectorVars: mockDeleteNodeInspectorVars,
+    })
+    mockUseNodesReadOnly.mockReturnValue({ nodesReadOnly: false })
+    mockUseIsChatMode.mockReturnValue(false)
+    mockUseWorkflow.mockReturnValue({
+      getIterationNodeChildren: vi.fn(() => [{ id: 'child-node' }]),
+    })
+    mockUseStore.mockReturnValue([])
+    mockUseNodeCrud.mockImplementation(() => ({
+      inputs: currentInputs,
+      setInputs: mockSetInputs,
+    }))
+    mockUseAllBuiltInTools.mockReturnValue({ data: [] })
+    mockUseAllCustomTools.mockReturnValue({ data: [] })
+    mockUseAllWorkflowTools.mockReturnValue({ data: [] })
+    mockUseAllMCPTools.mockReturnValue({ data: [] })
+    mockToNodeOutputVars.mockReturnValue([{ variable: 'child.result' }])
+  })
+
+  it('should expose iteration children vars and filter only array-like iterator inputs', () => {
+    const { result } = renderHook(() => useConfig('iteration-node', currentInputs))
+
+    expect(result.current.readOnly).toBe(false)
+    expect(result.current.childrenNodeVars).toEqual([{ variable: 'child.result' }])
+    expect(result.current.iterationChildrenNodes).toEqual([{ id: 'child-node' }])
+    expect(result.current.filterInputVar(createVar(VarType.arrayFile, 'files'))).toBe(true)
+    expect(result.current.filterInputVar(createVar(VarType.string, 'text'))).toBe(false)
+    expect(mockToNodeOutputVars).toHaveBeenCalled()
+  })
+
+  it('should update iterator input and output selectors and reset inspector vars on output changes', () => {
+    const { result } = renderHook(() => useConfig('iteration-node', currentInputs))
+
+    act(() => {
+      result.current.handleInputChange(['start', 'documents'], VarKindType.variable, createVar(VarType.arrayObject, 'start.documents'))
+    })
+
+    expect(mockSetInputs).toHaveBeenCalledWith(expect.objectContaining({
+      iterator_selector: ['start', 'documents'],
+      iterator_input_type: VarType.arrayObject,
+    }))
+
+    mockSetInputs.mockClear()
+
+    act(() => {
+      result.current.handleOutputVarChange(['child', 'score'], VarKindType.variable, createVar(VarType.number, 'child.score'))
+    })
+
+    expect(mockSetInputs).toHaveBeenCalledWith(expect.objectContaining({
+      output_selector: ['child', 'score'],
+      output_type: VarType.arrayNumber,
+    }))
+    expect(mockDeleteNodeInspectorVars).toHaveBeenCalledWith('iteration-node')
+
+    mockSetInputs.mockClear()
+
+    act(() => {
+      result.current.handleOutputVarChange(['child', 'result'], VarKindType.variable, createVar(VarType.string, 'child.result'))
+    })
+
+    expect(mockSetInputs).not.toHaveBeenCalled()
+  })
+
+  it('should update parallel, error-mode, and flatten options', () => {
+    const { result } = renderHook(() => useConfig('iteration-node', currentInputs))
+    const item: Item = { name: 'Continue', value: ErrorHandleMode.ContinueOnError }
+
+    act(() => {
+      result.current.changeParallel(true)
+      result.current.changeErrorResponseMode(item)
+      result.current.changeParallelNums(6)
+      result.current.changeFlattenOutput(true)
+    })
+
+    expect(mockSetInputs).toHaveBeenNthCalledWith(1, expect.objectContaining({
+      is_parallel: true,
+    }))
+    expect(mockSetInputs).toHaveBeenNthCalledWith(2, expect.objectContaining({
+      error_handle_mode: ErrorHandleMode.ContinueOnError,
+    }))
+    expect(mockSetInputs).toHaveBeenNthCalledWith(3, expect.objectContaining({
+      parallel_nums: 6,
+    }))
+    expect(mockSetInputs).toHaveBeenNthCalledWith(4, expect.objectContaining({
+      flatten_output: true,
+    }))
+  })
+})

web/app/components/workflow/nodes/iteration/__tests__/use-single-run-form-params.spec.ts

@@ -0,0 +1,168 @@
+import type { InputVar, Node } from '../../../types'
+import type { IterationNodeType } from '../types'
+import type { NodeTracing } from '@/types/workflow'
+import { act, renderHook } from '@testing-library/react'
+import { BlockEnum, ErrorHandleMode, InputVarType, VarType } from '@/app/components/workflow/types'
+import useSingleRunFormParams from '../use-single-run-form-params'
+
+const mockUseIsNodeInIteration = vi.hoisted(() => vi.fn())
+const mockUseWorkflow = vi.hoisted(() => vi.fn())
+const mockFormatTracing = vi.hoisted(() => vi.fn())
+const mockGetNodeUsedVars = vi.hoisted(() => vi.fn())
+const mockGetNodeUsedVarPassToServerKey = vi.hoisted(() => vi.fn())
+const mockGetNodeInfoById = vi.hoisted(() => vi.fn())
+const mockIsSystemVar = vi.hoisted(() => vi.fn())
+
+vi.mock('@/app/components/workflow/hooks', () => ({
+  useIsNodeInIteration: (...args: unknown[]) => mockUseIsNodeInIteration(...args),
+  useWorkflow: () => mockUseWorkflow(),
+}))
+
+vi.mock('@/app/components/workflow/run/utils/format-log', () => ({
+  __esModule: true,
+  default: (...args: unknown[]) => mockFormatTracing(...args),
+}))
+
+vi.mock('@/app/components/workflow/nodes/_base/components/variable/utils', () => ({
+  getNodeUsedVars: (...args: unknown[]) => mockGetNodeUsedVars(...args),
+  getNodeUsedVarPassToServerKey: (...args: unknown[]) => mockGetNodeUsedVarPassToServerKey(...args),
+  getNodeInfoById: (...args: unknown[]) => mockGetNodeInfoById(...args),
+  isSystemVar: (...args: unknown[]) => mockIsSystemVar(...args),
+}))
+
+const createInputVar = (variable: string): InputVar => ({
+  type: InputVarType.textInput,
+  label: variable,
+  variable,
+  required: false,
+})
+
+const createNode = (id: string, title: string, type = BlockEnum.Tool): Node => ({
+  id,
+  position: { x: 0, y: 0 },
+  data: {
+    title,
+    type,
+    desc: '',
+  },
+} as Node)
+
+const createPayload = (overrides: Partial<IterationNodeType> = {}): IterationNodeType => ({
+  title: 'Iteration',
+  desc: '',
+  type: BlockEnum.Iteration,
+  start_node_id: 'start-node',
+  iterator_selector: ['start-node', 'items'],
+  iterator_input_type: VarType.arrayString,
+  output_selector: ['child-node', 'text'],
+  output_type: VarType.arrayString,
+  is_parallel: false,
+  parallel_nums: 2,
+  error_handle_mode: ErrorHandleMode.Terminated,
+  flatten_output: false,
+  _children: [],
+  _isShowTips: false,
+  ...overrides,
+})
+
+describe('iteration/use-single-run-form-params', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockUseIsNodeInIteration.mockReturnValue({
+      isNodeInIteration: (nodeId: string) => nodeId === 'inner-node',
+    })
+    mockUseWorkflow.mockReturnValue({
+      getIterationNodeChildren: () => [
+        createNode('tool-a', 'Tool A'),
+        createNode('inner-node', 'Inner Node'),
+      ],
+      getBeforeNodesInSameBranch: () => [
+        createNode('start-node', 'Start Node', BlockEnum.Start),
+      ],
+    })
+    mockGetNodeUsedVars.mockImplementation((node: Node) => {
+      if (node.id === 'tool-a')
+        return [['start-node', 'answer'], ['inner-node', 'secret'], ['iteration-node', 'item']]
+      return []
+    })
+    mockGetNodeUsedVarPassToServerKey.mockReturnValue('passed_key')
+    mockGetNodeInfoById.mockImplementation((nodes: Node[], id: string) => nodes.find(node => node.id === id))
+    mockIsSystemVar.mockReturnValue(false)
+    mockFormatTracing.mockReturnValue([{ id: 'formatted-node' }])
+  })
+
+  it('should build single-run forms from external vars and keep iterator state in a dedicated form', () => {
+    const toVarInputs = vi.fn(() => [createInputVar('#start-node.answer#')])
+
+    const { result } = renderHook(() => useSingleRunFormParams({
+      id: 'iteration-node',
+      payload: createPayload(),
+      runInputData: {
+        'query': 'hello',
+        'iteration-node.input_selector': ['start-node', 'items'],
+      },
+      runInputDataRef: { current: {} },
+      getInputVars: vi.fn(),
+      setRunInputData: vi.fn(),
+      toVarInputs,
+      iterationRunResult: [],
+    }))
+
+    expect(toVarInputs).toHaveBeenCalledWith([
+      expect.objectContaining({
+        variable: 'start-node.answer',
+        value_selector: ['start-node', 'answer'],
+      }),
+    ])
+    expect(result.current.forms).toHaveLength(2)
+    expect(result.current.forms[0].inputs).toEqual([createInputVar('#start-node.answer#')])
+    expect(result.current.forms[0].values).toEqual({
+      'query': 'hello',
+      'iteration-node.input_selector': ['start-node', 'items'],
+    })
+    expect(result.current.forms[1].values).toEqual({
+      'iteration-node.input_selector': ['start-node', 'items'],
+    })
+    expect(result.current.allVarObject).toEqual({
+      'start-node.answer@@@tool-a@@@0': {
+        inSingleRunPassedKey: 'passed_key',
+      },
+    })
+    expect(result.current.nodeInfo).toEqual({ id: 'formatted-node' })
+  })
+
+  it('should forward form updates and expose iterator dependencies', () => {
+    const setRunInputData = vi.fn()
+
+    const { result } = renderHook(() => useSingleRunFormParams({
+      id: 'iteration-node',
+      payload: createPayload({
+        iterator_selector: ['source-node', 'records'],
+      }),
+      runInputData: {
+        'query': 'old',
+        'iteration-node.input_selector': ['source-node', 'records'],
+      },
+      runInputDataRef: { current: {} },
+      getInputVars: vi.fn(),
+      setRunInputData,
+      toVarInputs: vi.fn(() => []),
+      iterationRunResult: [] as NodeTracing[],
+    }))
+
+    act(() => {
+      result.current.forms[0].onChange({ query: 'new' })
+      result.current.forms[1].onChange({
+        'iteration-node.input_selector': ['source-node', 'next'],
+      })
+    })
+
+    expect(setRunInputData).toHaveBeenNthCalledWith(1, { query: 'new' })
+    expect(setRunInputData).toHaveBeenNthCalledWith(2, {
+      'query': 'old',
+      'iteration-node.input_selector': ['source-node', 'next'],
+    })
+    expect(result.current.getDependentVars()).toEqual([['source-node', 'records']])
+    expect(result.current.getDependentVar('iteration-node.input_selector')).toEqual(['source-node', 'records'])
+  })
+})

web/app/components/workflow/nodes/start/__tests__/use-config.spec.ts

@@ -0,0 +1,245 @@
+import type { StartNodeType } from '../types'
+import type { InputVar, ValueSelector } from '@/app/components/workflow/types'
+import { act, renderHook } from '@testing-library/react'
+import { BlockEnum, ChangeType, InputVarType } from '@/app/components/workflow/types'
+import useConfig from '../use-config'
+
+const mockUseTranslation = vi.hoisted(() => vi.fn())
+const mockUseNodesReadOnly = vi.hoisted(() => vi.fn())
+const mockUseWorkflow = vi.hoisted(() => vi.fn())
+const mockUseIsChatMode = vi.hoisted(() => vi.fn())
+const mockUseNodeCrud = vi.hoisted(() => vi.fn())
+const mockUseInspectVarsCrud = vi.hoisted(() => vi.fn())
+const mockNotify = vi.hoisted(() => vi.fn())
+
+vi.mock('react-i18next', () => ({
+  useTranslation: () => mockUseTranslation(),
+}))
+
+vi.mock('@/app/components/workflow/hooks', () => ({
+  useNodesReadOnly: () => mockUseNodesReadOnly(),
+  useWorkflow: () => mockUseWorkflow(),
+  useIsChatMode: () => mockUseIsChatMode(),
+}))
+
+vi.mock('@/app/components/workflow/nodes/_base/hooks/use-node-crud', () => ({
+  __esModule: true,
+  default: (...args: unknown[]) => mockUseNodeCrud(...args),
+}))
+
+vi.mock('@/app/components/workflow/hooks/use-inspect-vars-crud', () => ({
+  __esModule: true,
+  default: (...args: unknown[]) => mockUseInspectVarsCrud(...args),
+}))
+
+vi.mock('@/app/components/base/ui/toast', () => ({
+  __esModule: true,
+  toast: {
+    error: (message: string) => mockNotify({ type: 'error', message }),
+  },
+}))
+
+const createInputVar = (overrides: Partial<InputVar> = {}): InputVar => ({
+  label: 'Question',
+  variable: 'query',
+  type: InputVarType.textInput,
+  required: true,
+  ...overrides,
+})
+
+const createPayload = (overrides: Partial<StartNodeType> = {}): StartNodeType => ({
+  title: 'Start',
+  desc: '',
+  type: BlockEnum.Start,
+  variables: [
+    createInputVar(),
+    createInputVar({
+      label: 'Age',
+      variable: 'age',
+      type: InputVarType.number,
+      required: false,
+    }),
+  ],
+  ...overrides,
+})
+
+describe('start/use-config', () => {
+  const mockSetInputs = vi.fn()
+  const mockHandleOutVarRenameChange = vi.fn()
+  const mockIsVarUsedInNodes = vi.fn()
+  const mockRemoveUsedVarInNodes = vi.fn()
+  const mockDeleteNodeInspectorVars = vi.fn()
+  const mockRenameInspectVarName = vi.fn()
+  const mockDeleteInspectVar = vi.fn()
+  const toastSpy = mockNotify
+  let currentInputs: StartNodeType
+
+  beforeEach(() => {
+    vi.clearAllMocks()
+    currentInputs = createPayload()
+
+    mockUseTranslation.mockReturnValue({
+      t: (key: string) => key,
+    })
+    mockUseNodesReadOnly.mockReturnValue({ nodesReadOnly: false })
+    mockUseWorkflow.mockReturnValue({
+      handleOutVarRenameChange: mockHandleOutVarRenameChange,
+      isVarUsedInNodes: mockIsVarUsedInNodes,
+      removeUsedVarInNodes: mockRemoveUsedVarInNodes,
+    })
+    mockUseIsChatMode.mockReturnValue(false)
+    mockUseNodeCrud.mockImplementation(() => ({
+      inputs: currentInputs,
+      setInputs: mockSetInputs,
+    }))
+    mockUseInspectVarsCrud.mockReturnValue({
+      deleteNodeInspectorVars: mockDeleteNodeInspectorVars,
+      renameInspectVarName: mockRenameInspectVarName,
+      nodesWithInspectVars: [{
+        nodeId: 'start-node',
+        vars: [{ id: 'inspect-query', name: 'query' }],
+      }],
+      deleteInspectVar: mockDeleteInspectVar,
+    })
+    mockIsVarUsedInNodes.mockReturnValue(false)
+  })
+
+  it('should rename variables and sync downstream variable references', () => {
+    const { result } = renderHook(() => useConfig('start-node', currentInputs))
+    const renamedList = [
+      createInputVar({
+        label: 'Question',
+        variable: 'prompt',
+      }),
+      createInputVar({
+        label: 'Age',
+        variable: 'age',
+        type: InputVarType.number,
+        required: false,
+      }),
+    ]
+
+    act(() => {
+      result.current.handleVarListChange(renamedList, {
+        index: 0,
+        payload: {
+          type: ChangeType.changeVarName,
+          payload: {
+            beforeKey: 'query',
+          },
+        },
+      })
+    })
+
+    expect(mockSetInputs).toHaveBeenCalledWith(expect.objectContaining({
+      variables: renamedList,
+    }))
+    expect(mockHandleOutVarRenameChange).toHaveBeenCalledWith('start-node', ['start-node', 'query'], ['start-node', 'prompt'])
+    expect(mockRenameInspectVarName).toHaveBeenCalledWith('start-node', 'query', 'prompt')
+    expect(result.current.readOnly).toBe(false)
+    expect(result.current.isChatMode).toBe(false)
+  })
+
+  it('should block removal when the variable is still in use and confirm the deletion later', () => {
+    mockIsVarUsedInNodes.mockReturnValue(true)
+    const { result } = renderHook(() => useConfig('start-node', currentInputs))
+    const nextList = [currentInputs.variables[1]]
+
+    act(() => {
+      result.current.handleVarListChange(nextList, {
+        index: 0,
+        payload: {
+          type: ChangeType.remove,
+          payload: {
+            beforeKey: 'query',
+          },
+        },
+      })
+    })
+
+    expect(mockDeleteInspectVar).toHaveBeenCalledWith('start-node', 'inspect-query')
+    expect(mockSetInputs).not.toHaveBeenCalled()
+    expect(result.current.isShowRemoveVarConfirm).toBe(true)
+
+    act(() => {
+      result.current.onRemoveVarConfirm()
+    })
+
+    expect(mockSetInputs).toHaveBeenCalledWith(expect.objectContaining({
+      variables: [expect.objectContaining({ variable: 'age' })],
+    }))
+    expect(mockRemoveUsedVarInNodes).toHaveBeenCalledWith(['start-node', 'query'] as ValueSelector)
+    expect(result.current.isShowRemoveVarConfirm).toBe(false)
+  })
+
+  it('should validate duplicate variables and labels before adding a new variable', () => {
+    const { result } = renderHook(() => useConfig('start-node', currentInputs))
+
+    let added = true
+    act(() => {
+      added = result.current.handleAddVariable(createInputVar({
+        label: 'Different Label',
+        variable: 'query',
+      }))
+    })
+
+    expect(added).toBe(false)
+    expect(toastSpy).toHaveBeenCalledWith(expect.objectContaining({
+      type: 'error',
+      message: 'varKeyError.keyAlreadyExists',
+    }))
+
+    mockSetInputs.mockClear()
+    let addedUnique = false
+    act(() => {
+      addedUnique = result.current.handleAddVariable(createInputVar({
+        label: 'Locale',
+        variable: 'locale',
+        required: false,
+      }))
+    })
+
+    expect(addedUnique).toBe(true)
+    expect(mockSetInputs).toHaveBeenCalledWith(expect.objectContaining({
+      variables: expect.arrayContaining([
+        expect.objectContaining({ variable: 'locale' }),
+      ]),
+    }))
+  })
+
+  it('should clear inspector vars for non-remove list updates and reject duplicate labels', () => {
+    const { result } = renderHook(() => useConfig('start-node', currentInputs))
+    const typeEditedList = [
+      createInputVar({
+        label: 'Question',
+        variable: 'query',
+        type: InputVarType.paragraph,
+      }),
+      currentInputs.variables[1],
+    ]
+
+    act(() => {
+      result.current.handleVarListChange(typeEditedList)
+    })
+
+    expect(mockSetInputs).toHaveBeenCalledWith(expect.objectContaining({
+      variables: typeEditedList,
+    }))
+    expect(mockDeleteNodeInspectorVars).toHaveBeenCalledWith('start-node')
+
+    toastSpy.mockClear()
+    let added = true
+    act(() => {
+      added = result.current.handleAddVariable(createInputVar({
+        label: 'Age',
+        variable: 'new_age',
+      }))
+    })
+
+    expect(added).toBe(false)
+    expect(toastSpy).toHaveBeenCalledWith(expect.objectContaining({
+      type: 'error',
+      message: 'varKeyError.keyAlreadyExists',
+    }))
+  })
+})

web/app/components/workflow/nodes/trigger-webhook/components/__tests__/generic-table.spec.tsx

@@ -144,7 +144,7 @@ describe('GenericTable', () => {
     )
 
     await user.click(screen.getByRole('button', { name: 'Choose method' }))
-    await user.click(await screen.findByText('POST'))
+    await user.click(await screen.findByRole('option', { name: 'POST' }))
 
     await waitFor(() => {
       expect(onChange).toHaveBeenCalledWith([{ method: 'post', preview: '' }])

web/app/components/workflow/nodes/variable-assigner/__tests__/hooks.spec.ts

@@ -0,0 +1,244 @@
+import { act, renderHook } from '@testing-library/react'
+import { VarType } from '../../../types'
+import { useGetAvailableVars, useVariableAssigner } from '../hooks'
+
+const mockUseStoreApi = vi.hoisted(() => vi.fn())
+const mockUseNodes = vi.hoisted(() => vi.fn())
+const mockUseNodeDataUpdate = vi.hoisted(() => vi.fn())
+const mockUseWorkflow = vi.hoisted(() => vi.fn())
+const mockUseWorkflowVariables = vi.hoisted(() => vi.fn())
+const mockUseIsChatMode = vi.hoisted(() => vi.fn())
+const mockUseWorkflowStore = vi.hoisted(() => vi.fn())
+
+vi.mock('reactflow', () => ({
+  useStoreApi: () => mockUseStoreApi(),
+  useNodes: () => mockUseNodes(),
+}))
+
+vi.mock('@/app/components/workflow/hooks', () => ({
+  useNodeDataUpdate: () => mockUseNodeDataUpdate(),
+  useWorkflow: () => mockUseWorkflow(),
+  useWorkflowVariables: () => mockUseWorkflowVariables(),
+  useIsChatMode: () => mockUseIsChatMode(),
+}))
+
+vi.mock('@/app/components/workflow/store', () => ({
+  useWorkflowStore: () => mockUseWorkflowStore(),
+}))
+
+describe('variable-assigner/hooks', () => {
+  const mockHandleNodeDataUpdate = vi.fn()
+  const mockSetNodes = vi.fn()
+  const mockSetShowAssignVariablePopup = vi.fn()
+  const mockSetHoveringAssignVariableGroupId = vi.fn()
+  const getNodes = vi.fn()
+
+  beforeEach(() => {
+    vi.clearAllMocks()
+    getNodes.mockReturnValue([{
+      id: 'assigner-1',
+      data: {
+        variables: [['start', 'foo']],
+        output_type: VarType.string,
+        advanced_settings: {
+          groups: [{
+            groupId: 'group-1',
+            variables: [],
+            output_type: VarType.string,
+          }],
+        },
+      },
+    }])
+    mockUseStoreApi.mockReturnValue({
+      getState: () => ({
+        getNodes,
+        setNodes: mockSetNodes,
+      }),
+    })
+    mockUseNodeDataUpdate.mockReturnValue({
+      handleNodeDataUpdate: mockHandleNodeDataUpdate,
+    })
+    mockUseWorkflowStore.mockReturnValue({
+      getState: () => ({
+        setShowAssignVariablePopup: mockSetShowAssignVariablePopup,
+        setHoveringAssignVariableGroupId: mockSetHoveringAssignVariableGroupId,
+        connectingNodePayload: { id: 'connecting-node' },
+      }),
+    })
+    mockUseNodes.mockReturnValue([])
+    mockUseWorkflow.mockReturnValue({
+      getBeforeNodesInSameBranchIncludeParent: vi.fn(),
+    })
+    mockUseWorkflowVariables.mockReturnValue({
+      getNodeAvailableVars: vi.fn(),
+    })
+    mockUseIsChatMode.mockReturnValue(false)
+  })
+
+  it('should append target variables, ignore duplicates, and update grouped variables', () => {
+    const { result } = renderHook(() => useVariableAssigner())
+
+    act(() => {
+      result.current.handleAssignVariableValueChange('assigner-1', ['start', 'bar'], { type: VarType.number } as never)
+      result.current.handleAssignVariableValueChange('assigner-1', ['start', 'foo'], { type: VarType.number } as never)
+      result.current.handleAssignVariableValueChange('assigner-1', ['start', 'grouped'], { type: VarType.arrayString } as never, 'group-1')
+    })
+
+    expect(mockHandleNodeDataUpdate).toHaveBeenNthCalledWith(1, {
+      id: 'assigner-1',
+      data: {
+        variables: [
+          ['start', 'foo'],
+          ['start', 'bar'],
+        ],
+        output_type: VarType.number,
+      },
+    })
+    expect(mockHandleNodeDataUpdate).toHaveBeenNthCalledWith(2, {
+      id: 'assigner-1',
+      data: {
+        advanced_settings: {
+          groups: [{
+            groupId: 'group-1',
+            variables: [['start', 'grouped']],
+            output_type: VarType.arrayString,
+          }],
+        },
+      },
+    })
+    expect(mockHandleNodeDataUpdate).toHaveBeenCalledTimes(2)
+  })
+
+  it('should close the popup and add variables through the positioned add-variable flow', () => {
+    getNodes.mockReturnValue([
+      {
+        id: 'source-node',
+        data: {
+          _showAddVariablePopup: true,
+          _holdAddVariablePopup: true,
+        },
+      },
+      {
+        id: 'assigner-1',
+        data: {
+          variables: [],
+          advanced_settings: {
+            groups: [{
+              groupId: 'group-1',
+              variables: [],
+            }],
+          },
+          _showAddVariablePopup: true,
+          _holdAddVariablePopup: true,
+        },
+      },
+    ])
+
+    const { result } = renderHook(() => useVariableAssigner())
+
+    act(() => {
+      result.current.handleAddVariableInAddVariablePopupWithPosition(
+        'source-node',
+        'assigner-1',
+        'group-1',
+        ['start', 'output'],
+        { type: VarType.object } as never,
+      )
+    })
+
+    expect(mockSetNodes).toHaveBeenCalledWith([
+      expect.objectContaining({
+        id: 'source-node',
+        data: expect.objectContaining({
+          _showAddVariablePopup: false,
+          _holdAddVariablePopup: false,
+        }),
+      }),
+      expect.objectContaining({
+        id: 'assigner-1',
+        data: expect.objectContaining({
+          _showAddVariablePopup: false,
+          _holdAddVariablePopup: false,
+        }),
+      }),
+    ])
+    expect(mockSetShowAssignVariablePopup).toHaveBeenCalledWith(undefined)
+    expect(mockHandleNodeDataUpdate).toHaveBeenCalledWith({
+      id: 'assigner-1',
+      data: {
+        advanced_settings: {
+          groups: [{
+            groupId: 'group-1',
+            variables: [['start', 'output']],
+            output_type: VarType.object,
+          }],
+        },
+      },
+    })
+  })
+
+  it('should update the hovered group state on enter and leave', () => {
+    const { result } = renderHook(() => useVariableAssigner())
+
+    act(() => {
+      result.current.handleGroupItemMouseEnter('group-1')
+      result.current.handleGroupItemMouseLeave()
+    })
+
+    expect(mockSetHoveringAssignVariableGroupId).toHaveBeenNthCalledWith(1, 'group-1')
+    expect(mockSetHoveringAssignVariableGroupId).toHaveBeenNthCalledWith(2, undefined)
+  })
+
+  it('should collect available vars and filter start-node env vars when hideEnv is enabled', () => {
+    mockUseNodes.mockReturnValue([
+      {
+        id: 'current-node',
+        parentId: 'parent-node',
+      },
+      {
+        id: 'before-1',
+      },
+      {
+        id: 'parent-node',
+      },
+    ])
+    const getBeforeNodesInSameBranchIncludeParent = vi.fn(() => [
+      { id: 'before-1' },
+      { id: 'before-1' },
+    ])
+    const getNodeAvailableVars = vi.fn()
+      .mockReturnValueOnce([{
+        isStartNode: true,
+        vars: [
+          { variable: 'sys.user_id' },
+          { variable: 'foo' },
+        ],
+      }, {
+        isStartNode: false,
+        vars: [],
+      }])
+      .mockReturnValueOnce([{
+        isStartNode: false,
+        vars: [{ variable: 'bar' }],
+      }])
+
+    mockUseWorkflow.mockReturnValue({
+      getBeforeNodesInSameBranchIncludeParent,
+    })
+    mockUseWorkflowVariables.mockReturnValue({
+      getNodeAvailableVars,
+    })
+
+    const { result } = renderHook(() => useGetAvailableVars())
+
+    expect(result.current('current-node', 'target', () => true, true)).toEqual([{
+      isStartNode: true,
+      vars: [{ variable: 'foo' }],
+    }])
+    expect(result.current('current-node', 'target', () => true, false)).toEqual([{
+      isStartNode: false,
+      vars: [{ variable: 'bar' }],
+    }])
+    expect(result.current('missing-node', 'target', () => true)).toEqual([])
+  })
+})