refactor(datasets): extract hooks and components with comprehensive tests (#31707)

Co-authored-by: CodingOnStar <hanxujiang@dify.com>
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>

web/app/components/datasets/common/image-uploader/utils.spec.ts

@@ -216,13 +216,22 @@ describe('image-uploader utils', () => {
     type FileCallback = (file: MockFile) => void
     type EntriesCallback = (entries: FileSystemEntry[]) => void
 
+    // Helper to create mock FileSystemEntry with required properties
+    const createMockEntry = (props: {
+      isFile: boolean
+      isDirectory: boolean
+      name?: string
+      file?: (callback: FileCallback) => void
+      createReader?: () => { readEntries: (callback: EntriesCallback) => void }
+    }): FileSystemEntry => props as unknown as FileSystemEntry
+
     it('should resolve with file array for file entry', async () => {
       const mockFile: MockFile = { name: 'test.png' }
-      const mockEntry = {
+      const mockEntry = createMockEntry({
         isFile: true,
         isDirectory: false,
         file: (callback: FileCallback) => callback(mockFile),
-      }
+      })
 
       const result = await traverseFileEntry(mockEntry)
       expect(result).toHaveLength(1)
@@ -232,11 +241,11 @@ describe('image-uploader utils', () => {
 
     it('should resolve with file array with prefix for nested file', async () => {
       const mockFile: MockFile = { name: 'test.png' }
-      const mockEntry = {
+      const mockEntry = createMockEntry({
         isFile: true,
         isDirectory: false,
         file: (callback: FileCallback) => callback(mockFile),
-      }
+      })
 
       const result = await traverseFileEntry(mockEntry, 'folder/')
       expect(result).toHaveLength(1)
@@ -244,24 +253,24 @@ describe('image-uploader utils', () => {
     })
 
     it('should resolve empty array for unknown entry type', async () => {
-      const mockEntry = {
+      const mockEntry = createMockEntry({
         isFile: false,
         isDirectory: false,
-      }
+      })
 
       const result = await traverseFileEntry(mockEntry)
       expect(result).toEqual([])
     })
 
     it('should handle directory with no files', async () => {
-      const mockEntry = {
+      const mockEntry = createMockEntry({
         isFile: false,
         isDirectory: true,
         name: 'empty-folder',
         createReader: () => ({
           readEntries: (callback: EntriesCallback) => callback([]),
         }),
-      }
+      })
 
       const result = await traverseFileEntry(mockEntry)
       expect(result).toEqual([])
@@ -271,20 +280,20 @@ describe('image-uploader utils', () => {
       const mockFile1: MockFile = { name: 'file1.png' }
       const mockFile2: MockFile = { name: 'file2.png' }
 
-      const mockFileEntry1 = {
+      const mockFileEntry1 = createMockEntry({
         isFile: true,
         isDirectory: false,
         file: (callback: FileCallback) => callback(mockFile1),
-      }
+      })
 
-      const mockFileEntry2 = {
+      const mockFileEntry2 = createMockEntry({
         isFile: true,
         isDirectory: false,
         file: (callback: FileCallback) => callback(mockFile2),
-      }
+      })
 
       let readCount = 0
-      const mockEntry = {
+      const mockEntry = createMockEntry({
         isFile: false,
         isDirectory: true,
         name: 'folder',
@@ -292,14 +301,14 @@ describe('image-uploader utils', () => {
           readEntries: (callback: EntriesCallback) => {
             if (readCount === 0) {
               readCount++
-              callback([mockFileEntry1, mockFileEntry2] as unknown as FileSystemEntry[])
+              callback([mockFileEntry1, mockFileEntry2])
             }
             else {
               callback([])
             }
           },
         }),
-      }
+      })
 
       const result = await traverseFileEntry(mockEntry)
       expect(result).toHaveLength(2)

web/app/components/datasets/common/image-uploader/utils.ts

@@ -18,17 +18,17 @@ type FileWithPath = {
   relativePath?: string
 } & File
 
-export const traverseFileEntry = (entry: any, prefix = ''): Promise<FileWithPath[]> => {
+export const traverseFileEntry = (entry: FileSystemEntry, prefix = ''): Promise<FileWithPath[]> => {
   return new Promise((resolve) => {
     if (entry.isFile) {
-      entry.file((file: FileWithPath) => {
+      (entry as FileSystemFileEntry).file((file: FileWithPath) => {
         file.relativePath = `${prefix}${file.name}`
         resolve([file])
       })
     }
     else if (entry.isDirectory) {
-      const reader = entry.createReader()
-      const entries: any[] = []
+      const reader = (entry as FileSystemDirectoryEntry).createReader()
+      const entries: FileSystemEntry[] = []
       const read = () => {
         reader.readEntries(async (results: FileSystemEntry[]) => {
           if (!results.length) {