dify
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'use client'
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import React, { useCallback, useEffect, useMemo, useRef, useState } from 'react'
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import { useTranslation } from 'react-i18next'
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import { useContext } from 'use-context-selector'
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import { RiDeleteBinLine, RiErrorWarningFill, RiUploadCloud2Line } from '@remixicon/react'
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import DocumentFileIcon from '@/app/components/datasets/common/document-file-icon'
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import cn from '@/utils/classnames'
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import type { CustomFile as File, FileItem } from '@/models/datasets'
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import { ToastContext } from '@/app/components/base/toast'
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import { upload } from '@/service/base'
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import { getFileUploadErrorMessage } from '@/app/components/base/file-uploader/utils'
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import I18n from '@/context/i18n'
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import { LanguagesSupported } from '@/i18n-config/language'
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import { IS_CE_EDITION } from '@/config'
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import { Theme } from '@/types/app'
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import useTheme from '@/hooks/use-theme'
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import { useFileUploadConfig } from '@/service/use-common'
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import { useDataSourceStore, useDataSourceStoreWithSelector } from '../store'
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import { produce } from 'immer'
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import dynamic from 'next/dynamic'
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const SimplePieChart = dynamic(() => import('@/app/components/base/simple-pie-chart'), { ssr: false })
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const FILES_NUMBER_LIMIT = 20
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export type LocalFileProps = {
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allowedExtensions: string[]
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notSupportBatchUpload?: boolean
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}
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const LocalFile = ({
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allowedExtensions,
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notSupportBatchUpload,
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}: LocalFileProps) => {
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const { t } = useTranslation()
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const { notify } = useContext(ToastContext)
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const { locale } = useContext(I18n)
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const localFileList = useDataSourceStoreWithSelector(state => state.localFileList)
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const dataSourceStore = useDataSourceStore()
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const [dragging, setDragging] = useState(false)
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const dropRef = useRef<HTMLDivElement>(null)
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const dragRef = useRef<HTMLDivElement>(null)
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const fileUploader = useRef<HTMLInputElement>(null)
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const fileListRef = useRef<FileItem[]>([])
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const hideUpload = notSupportBatchUpload && localFileList.length > 0
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const { data: fileUploadConfigResponse } = useFileUploadConfig()
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const supportTypesShowNames = useMemo(() => {
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const extensionMap: { [key: string]: string } = {
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md: 'markdown',
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pptx: 'pptx',
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htm: 'html',
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xlsx: 'xlsx',
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docx: 'docx',
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}
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return allowedExtensions
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.map(item => extensionMap[item] || item) // map to standardized extension
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.map(item => item.toLowerCase()) // convert to lower case
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.filter((item, index, self) => self.indexOf(item) === index) // remove duplicates
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.map(item => item.toUpperCase()) // convert to upper case
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.join(locale !== LanguagesSupported[1] ? ', ' : '、 ')
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}, [locale, allowedExtensions])
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const ACCEPTS = allowedExtensions.map((ext: string) => `.${ext}`)
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const fileUploadConfig = useMemo(() => fileUploadConfigResponse ?? {
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file_size_limit: 15,
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batch_count_limit: 5,
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}, [fileUploadConfigResponse])
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const updateFile = useCallback((fileItem: FileItem, progress: number, list: FileItem[]) => {
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const { setLocalFileList } = dataSourceStore.getState()
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const newList = produce(list, (draft) => {
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const targetIndex = draft.findIndex(file => file.fileID === fileItem.fileID)
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draft[targetIndex] = {
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...draft[targetIndex],
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progress,
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}
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})
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setLocalFileList(newList)
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}, [dataSourceStore])
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const updateFileList = useCallback((preparedFiles: FileItem[]) => {
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const { setLocalFileList } = dataSourceStore.getState()
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setLocalFileList(preparedFiles)
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}, [dataSourceStore])
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const handlePreview = useCallback((file: File) => {
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const { setCurrentLocalFile } = dataSourceStore.getState()
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if (file.id)
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setCurrentLocalFile(file)
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}, [dataSourceStore])
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// utils
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const getFileType = (currentFile: File) => {
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if (!currentFile)
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return ''
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const arr = currentFile.name.split('.')
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return arr[arr.length - 1]
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}
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const getFileSize = (size: number) => {
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if (size / 1024 < 10)
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return `${(size / 1024).toFixed(2)}KB`
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return `${(size / 1024 / 1024).toFixed(2)}MB`
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}
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const isValid = useCallback((file: File) => {
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const { size } = file
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const ext = `.${getFileType(file)}`
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const isValidType = ACCEPTS.includes(ext.toLowerCase())
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if (!isValidType)
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notify({ type: 'error', message: t('datasetCreation.stepOne.uploader.validation.typeError') })
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const isValidSize = size <= fileUploadConfig.file_size_limit * 1024 * 1024
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if (!isValidSize)
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notify({ type: 'error', message: t('datasetCreation.stepOne.uploader.validation.size', { size: fileUploadConfig.file_size_limit }) })
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return isValidType && isValidSize
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}, [fileUploadConfig, notify, t, ACCEPTS])
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type UploadResult = Awaited<ReturnType<typeof upload>>
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const fileUpload = useCallback(async (fileItem: FileItem): Promise<FileItem> => {
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const formData = new FormData()
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formData.append('file', fileItem.file)
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const onProgress = (e: ProgressEvent) => {
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if (e.lengthComputable) {
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const percent = Math.floor(e.loaded / e.total * 100)
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updateFile(fileItem, percent, fileListRef.current)
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}
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}
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return upload({
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xhr: new XMLHttpRequest(),
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data: formData,
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onprogress: onProgress,
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}, false, undefined, '?source=datasets')
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.then((res: UploadResult) => {
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const updatedFile = Object.assign({}, fileItem.file, {
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id: res.id,
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...(res as Partial<File>),
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}) as File
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const completeFile: FileItem = {
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fileID: fileItem.fileID,
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file: updatedFile,
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progress: -1,
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}
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const index = fileListRef.current.findIndex(item => item.fileID === fileItem.fileID)
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fileListRef.current[index] = completeFile
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updateFile(completeFile, 100, fileListRef.current)
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return Promise.resolve({ ...completeFile })
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})
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.catch((e) => {
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const errorMessage = getFileUploadErrorMessage(e, t('datasetCreation.stepOne.uploader.failed'), t)
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notify({ type: 'error', message: errorMessage })
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updateFile(fileItem, -2, fileListRef.current)
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return Promise.resolve({ ...fileItem })
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})
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.finally()
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}, [fileListRef, notify, updateFile, t])
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const uploadBatchFiles = useCallback((bFiles: FileItem[]) => {
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bFiles.forEach(bf => (bf.progress = 0))
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return Promise.all(bFiles.map(fileUpload))
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}, [fileUpload])
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const uploadMultipleFiles = useCallback(async (files: FileItem[]) => {
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const batchCountLimit = fileUploadConfig.batch_count_limit
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const length = files.length
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let start = 0
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let end = 0
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while (start < length) {
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if (start + batchCountLimit > length)
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end = length
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else
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end = start + batchCountLimit
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const bFiles = files.slice(start, end)
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await uploadBatchFiles(bFiles)
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start = end
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}
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}, [fileUploadConfig, uploadBatchFiles])
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const initialUpload = useCallback((files: File[]) => {
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if (!files.length)
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return false
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if (files.length + localFileList.length > FILES_NUMBER_LIMIT && !IS_CE_EDITION) {
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notify({ type: 'error', message: t('datasetCreation.stepOne.uploader.validation.filesNumber', { filesNumber: FILES_NUMBER_LIMIT }) })
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return false
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}
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const preparedFiles = files.map((file, index) => ({
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fileID: `file${index}-${Date.now()}`,
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file,
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progress: -1,
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}))
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const newFiles = [...fileListRef.current, ...preparedFiles]
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updateFileList(newFiles)
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fileListRef.current = newFiles
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uploadMultipleFiles(preparedFiles)
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}, [updateFileList, uploadMultipleFiles, notify, t, localFileList])
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const handleDragEnter = (e: DragEvent) => {
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e.preventDefault()
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e.stopPropagation()
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if (e.target !== dragRef.current)
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setDragging(true)
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}
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const handleDragOver = (e: DragEvent) => {
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e.preventDefault()
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e.stopPropagation()
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}
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const handleDragLeave = (e: DragEvent) => {
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e.preventDefault()
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e.stopPropagation()
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if (e.target === dragRef.current)
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setDragging(false)
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}
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const handleDrop = useCallback((e: DragEvent) => {
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e.preventDefault()
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e.stopPropagation()
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setDragging(false)
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if (!e.dataTransfer)
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return
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let files = [...e.dataTransfer.files] as File[]
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if (notSupportBatchUpload)
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files = files.slice(0, 1)
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const validFiles = files.filter(isValid)
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initialUpload(validFiles)
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}, [initialUpload, isValid, notSupportBatchUpload])
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const selectHandle = useCallback(() => {
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if (fileUploader.current)
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fileUploader.current.click()
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}, [])
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const removeFile = (fileID: string) => {
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if (fileUploader.current)
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fileUploader.current.value = ''
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fileListRef.current = fileListRef.current.filter(item => item.fileID !== fileID)
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updateFileList([...fileListRef.current])
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}
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const fileChangeHandle = useCallback((e: React.ChangeEvent<HTMLInputElement>) => {
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const files = [...(e.target.files ?? [])] as File[]
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initialUpload(files.filter(isValid))
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}, [isValid, initialUpload])
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const { theme } = useTheme()
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const chartColor = useMemo(() => theme === Theme.dark ? '#5289ff' : '#296dff', [theme])
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useEffect(() => {
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const dropElement = dropRef.current
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dropElement?.addEventListener('dragenter', handleDragEnter)
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dropElement?.addEventListener('dragover', handleDragOver)
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dropElement?.addEventListener('dragleave', handleDragLeave)
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dropElement?.addEventListener('drop', handleDrop)
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return () => {
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dropElement?.removeEventListener('dragenter', handleDragEnter)
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dropElement?.removeEventListener('dragover', handleDragOver)
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dropElement?.removeEventListener('dragleave', handleDragLeave)
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dropElement?.removeEventListener('drop', handleDrop)
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}
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}, [handleDrop])
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return (
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<div className='flex flex-col'>
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{!hideUpload && (
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<input
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ref={fileUploader}
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id='fileUploader'
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className='hidden'
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type='file'
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multiple={!notSupportBatchUpload}
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accept={ACCEPTS.join(',')}
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onChange={fileChangeHandle}
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/>
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)}
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{!hideUpload && (
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<div
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ref={dropRef}
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className={cn(
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'relative box-border flex min-h-20 flex-col items-center justify-center gap-1 rounded-xl border border-dashed border-components-dropzone-border bg-components-dropzone-bg px-4 py-3 text-xs leading-4 text-text-tertiary',
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dragging && 'border-components-dropzone-border-accent bg-components-dropzone-bg-accent',
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)}>
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<div className='flex min-h-5 items-center justify-center text-sm leading-4 text-text-secondary'>
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<RiUploadCloud2Line className='mr-2 size-5' />
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<span>
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{notSupportBatchUpload ? t('datasetCreation.stepOne.uploader.buttonSingleFile') : t('datasetCreation.stepOne.uploader.button')}
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{allowedExtensions.length > 0 && (
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<label className='ml-1 cursor-pointer text-text-accent' onClick={selectHandle}>{t('datasetCreation.stepOne.uploader.browse')}</label>
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)}
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</span>
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</div>
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<div>{t('datasetCreation.stepOne.uploader.tip', {
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size: fileUploadConfig.file_size_limit,
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supportTypes: supportTypesShowNames,
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batchCount: notSupportBatchUpload ? 1 : fileUploadConfig.batch_count_limit,
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})}</div>
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{dragging && <div ref={dragRef} className='absolute left-0 top-0 h-full w-full' />}
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</div>
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)}
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{localFileList.length > 0 && (
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<div className='mt-1 flex flex-col gap-y-1'>
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{localFileList.map((fileItem, index) => {
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const isUploading = fileItem.progress >= 0 && fileItem.progress < 100
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const isError = fileItem.progress === -2
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return (
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<div
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key={`${fileItem.fileID}-${index}`}
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onClick={handlePreview.bind(null, fileItem.file)}
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className={cn(
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'flex h-12 items-center rounded-lg border border-components-panel-border bg-components-panel-on-panel-item-bg shadow-xs shadow-shadow-shadow-4',
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isError && 'border-state-destructive-border bg-state-destructive-hover',
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)}
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>
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<div className='flex w-12 shrink-0 items-center justify-center'>
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<DocumentFileIcon
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size='lg'
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className='shrink-0'
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name={fileItem.file.name}
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extension={getFileType(fileItem.file)}
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/>
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</div>
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<div className='flex shrink grow flex-col gap-0.5'>
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<div className='flex w-full'>
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<div className='w-0 grow truncate text-xs text-text-secondary'>{fileItem.file.name}</div>
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</div>
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<div className='w-full truncate text-2xs leading-3 text-text-tertiary'>
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<span className='uppercase'>{getFileType(fileItem.file)}</span>
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<span className='px-1 text-text-quaternary'>·</span>
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<span>{getFileSize(fileItem.file.size)}</span>
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</div>
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</div>
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<div className='flex w-16 shrink-0 items-center justify-end gap-1 pr-3'>
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{isUploading && (
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<SimplePieChart percentage={fileItem.progress} stroke={chartColor} fill={chartColor} animationDuration={0} />
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)}
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{
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isError && (
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<RiErrorWarningFill className='size-4 text-text-destructive' />
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)
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}
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<span className='flex h-6 w-6 cursor-pointer items-center justify-center' onClick={(e) => {
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e.stopPropagation()
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removeFile(fileItem.fileID)
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}}>
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<RiDeleteBinLine className='size-4 text-text-tertiary' />
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</span>
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</div>
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</div>
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)
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})}
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</div>
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)}
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</div>
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)
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}
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export default LocalFile
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