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'use client'
import type { FC } from 'react'
import React, { useEffect, useRef, useState } from 'react'
import cn from 'classnames'
import { useTranslation } from 'react-i18next'
import { useContext } from 'use-context-selector'
import { Csv as CSVIcon } from '@/app/components/base/icons/src/public/files'
import { ToastContext } from '@/app/components/base/toast'
import { Trash03 } from '@/app/components/base/icons/src/vender/line/general'
import Button from '@/app/components/base/button'
export type Props = {
file: File | undefined
updateFile: (file?: File) => void
}
const CSVUploader: FC<Props> = ({
file,
updateFile,
}) => {
const { t } = useTranslation()
const { notify } = useContext(ToastContext)
const [dragging, setDragging] = useState(false)
const dropRef = useRef<HTMLDivElement>(null)
const dragRef = useRef<HTMLDivElement>(null)
const fileUploader = useRef<HTMLInputElement>(null)
const handleDragEnter = (e: DragEvent) => {
e.preventDefault()
e.stopPropagation()
e.target !== dragRef.current && setDragging(true)
}
const handleDragOver = (e: DragEvent) => {
e.preventDefault()
e.stopPropagation()
}
const handleDragLeave = (e: DragEvent) => {
e.preventDefault()
e.stopPropagation()
e.target === dragRef.current && setDragging(false)
}
const handleDrop = (e: DragEvent) => {
e.preventDefault()
e.stopPropagation()
setDragging(false)
if (!e.dataTransfer)
return
const files = [...e.dataTransfer.files]
if (files.length > 1) {
notify({ type: 'error', message: t('datasetCreation.stepOne.uploader.validation.count') })
return
}
updateFile(files[0])
}
const selectHandle = () => {
if (fileUploader.current)
fileUploader.current.click()
}
const removeFile = () => {
if (fileUploader.current)
fileUploader.current.value = ''
updateFile()
}
const fileChangeHandle = (e: React.ChangeEvent<HTMLInputElement>) => {
const currentFile = e.target.files?.[0]
updateFile(currentFile)
}
useEffect(() => {
dropRef.current?.addEventListener('dragenter', handleDragEnter)
dropRef.current?.addEventListener('dragover', handleDragOver)
dropRef.current?.addEventListener('dragleave', handleDragLeave)
dropRef.current?.addEventListener('drop', handleDrop)
return () => {
dropRef.current?.removeEventListener('dragenter', handleDragEnter)
dropRef.current?.removeEventListener('dragover', handleDragOver)
dropRef.current?.removeEventListener('dragleave', handleDragLeave)
dropRef.current?.removeEventListener('drop', handleDrop)
}
}, [])
return (
<div className='mt-6'>
<input
ref={fileUploader}
style={{ display: 'none' }}
type="file"
id="fileUploader"
accept='.csv'
onChange={fileChangeHandle}
/>
<div ref={dropRef}>
{!file && (
<div className={cn('flex items-center h-20 rounded-xl bg-gray-50 border border-dashed border-gray-200 text-sm font-normal', dragging && 'bg-[#F5F8FF] border border-[#B2CCFF]')}>
<div className='w-full flex items-center justify-center space-x-2'>
<CSVIcon className="shrink-0" />
<div className='text-gray-500'>
{t('datasetDocuments.list.batchModal.csvUploadTitle')}
<span className='text-primary-400 cursor-pointer' onClick={selectHandle}>{t('datasetDocuments.list.batchModal.browse')}</span>
</div>
</div>
{dragging && <div ref={dragRef} className='absolute w-full h-full top-0 left-0'/>}
</div>
)}
{file && (
<div className={cn('flex items-center h-20 px-6 rounded-xl bg-gray-50 border border-gray-200 text-sm font-normal group', 'hover:bg-[#F5F8FF] hover:border-[#B2CCFF]')}>
<CSVIcon className="shrink-0" />
<div className='flex ml-2 w-0 grow'>
<span className='max-w-[calc(100%_-_30px)] text-ellipsis whitespace-nowrap overflow-hidden text-gray-800'>{file.name.replace(/.csv$/, '')}</span>
<span className='shrink-0 text-gray-500'>.csv</span>
</div>
<div className='hidden group-hover:flex items-center'>
<Button className='!h-8 !px-3 !py-[6px] bg-white !text-[13px] !leading-[18px] text-gray-700' onClick={selectHandle}>{t('datasetCreation.stepOne.uploader.change')}</Button>
<div className='mx-2 w-px h-4 bg-gray-200' />
<div className='p-2 cursor-pointer' onClick={removeFile}>
<Trash03 className='w-4 h-4 text-gray-500' />
</div>
</div>
</div>
)}
</div>
</div>
)
}
export default React.memo(CSVUploader)
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