dify/web/app/components/workflow/nodes/utils.ts

import type { NodeOutPutVar, ValueSelector } from '@/app/components/workflow/types'
import { InputVarType } from '@/app/components/workflow/types'

export const findVariableWhenOnLLMVision = (
  valueSelector: ValueSelector,
  availableVars: NodeOutPutVar[],
) => {
  const currentVariableNode = availableVars.find((availableVar) => {
    if (valueSelector[0] === 'sys' && availableVar.isStartNode) return true

    return valueSelector[0] === availableVar.nodeId
  })
  const currentVariable = currentVariableNode?.vars.find((variable) => {
    if (valueSelector[0] === 'sys' && variable.variable === `sys.${valueSelector[1]}`) return true
    return variable.variable === valueSelector[1]
  })

  let formType = ''
  if (currentVariable?.type === 'array[file]') formType = InputVarType.multiFiles
  if (currentVariable?.type === 'file') formType = InputVarType.singleFile

  return (
    currentVariable && {
      ...currentVariable,
      formType,
    }
  )
}

export const getConditionValueAsString = (condition: { value: any }) => {
  if (Array.isArray(condition.value)) return condition.value[0] ?? ''

  if (typeof condition.value === 'number') return String(condition.value)

  return condition.value ?? ''
}