feat: file drag and drop (#2)

* feat file drag and drop

Signed-off-by: jingyang <3161362058@qq.com>

* add file select i18n

Signed-off-by: jingyang <3161362058@qq.com>

* add i18n Interpolation

Signed-off-by: jingyang <3161362058@qq.com>

---------

Signed-off-by: jingyang <3161362058@qq.com>

client/public/locales/en/common.json

@@ -27,6 +27,15 @@
     "Input": "Input",
     "Output": "Output"
   },
+  "file": {
+    "Click to download CSV template": "Click to download CSV template",
+    "Drag and drop": "Drag and drop files here, or click",
+    "Release the mouse to upload the file": "Release the mouse to upload the file",
+    "select a document": "select a document",
+    "support": "support {{fileExtension}} file",
+    "upload error description": "Only upload multiple files or one folder at a time",
+    "If the imported file is garbled, please convert CSV to utf-8 encoding format": "If the imported file is garbled, please convert CSV to utf-8 encoding format"
+  },
   "home": {
     "Quickly build AI question and answer library": "Quickly build AI question and answer library",
     "Start Now": "Start Now",

client/public/locales/zh/common.json

@@ -27,6 +27,15 @@
     "Input": "输入",
     "Output": "输出"
   },
+  "file": {
+    "Click to download CSV template": "点击下载 CSV 模板",
+    "Drag and drop": "拖拽文件至此，或点击",
+    "Release the mouse to upload the file": "松开鼠标上传文件",
+    "select a document": "选择文件",
+    "support": "支持 {{fileExtension}} 文件",
+    "upload error description": "单次只支持上传多个文件或者一个文件夹",
+    "If the imported file is garbled, please convert CSV to utf-8 encoding format": "如果导入文件乱码，请将 CSV 转成 utf-8 编码格式"
+  },
   "home": {
     "Quickly build AI question and answer library": "快速搭建 AI 问答系统",
     "Start Now": "立即开始",

client/src/pages/kb/detail/components/Import/Csv.tsx

@@ -136,7 +136,7 @@ const CsvImport = ({ kbId }: { kbId: string }) => {
           fileExtension={fileExtension}
           onSelectFile={onSelectFile}
           isLoading={selecting}
-          tipText={'如果导入文件乱码，请将 CSV 转成 utf-8 编码格式'}
+          tipText={'If the imported file is garbled, please convert CSV to utf-8 encoding format'}
           py={emptyFiles ? '100px' : 5}
           isCsv
         />

client/src/pages/kb/detail/components/Import/FileSelect.tsx

@@ -1,10 +1,11 @@
-import React from 'react';
+import MyIcon from '@/components/Icon';
-import { Box, Flex, type BoxProps } from '@chakra-ui/react';
 import { useLoading } from '@/hooks/useLoading';
 import { useSelectFile } from '@/hooks/useSelectFile';
-
+import { useToast } from '@/hooks/useToast';
-import MyIcon from '@/components/Icon';
 import { fileDownload } from '@/utils/file';
+import { Box, Flex, Text, type BoxProps } from '@chakra-ui/react';
+import { DragEvent, useCallback, useState } from 'react';
+import { useTranslation } from 'next-i18next';
 
 interface Props extends BoxProps {
   fileExtension: string;
@@ -23,13 +24,79 @@ const FileSelect = ({
   ...props
 }: Props) => {
   const { Loading: FileSelectLoading } = useLoading();
+  const { t } = useTranslation();
   const csvTemplate = `question,answer,source\n"什么是 laf","laf 是一个云函数开发平台……","laf git doc"\n"什么是 sealos","Sealos 是以 kubernetes 为内核的云操作系统发行版,可以……","sealos git doc"`;
 
+  const { toast } = useToast();
+
   const { File, onOpen } = useSelectFile({
     fileType: fileExtension,
     multiple: true
   });
 
+  const [isDragging, setIsDragging] = useState(false);
+
+  const handleDragEnter = (e: DragEvent<HTMLDivElement>) => {
+    e.preventDefault();
+    setIsDragging(true);
+  };
+
+  const handleDragLeave = (e: DragEvent<HTMLDivElement>) => {
+    e.preventDefault();
+    setIsDragging(false);
+  };
+
+  const handleDrop = useCallback(async (e: DragEvent<HTMLDivElement>) => {
+    e.preventDefault();
+    setIsDragging(false);
+
+    const items = e.dataTransfer.items;
+    const fileList: File[] = [];
+
+    if (e.dataTransfer.items.length <= 1) {
+      const traverseFileTree = async (item: any) => {
+        return new Promise<void>((resolve, reject) => {
+          if (item.isFile) {
+            item.file((file: File) => {
+              fileList.push(file);
+              resolve();
+            });
+          } else if (item.isDirectory) {
+            const dirReader = item.createReader();
+            dirReader.readEntries(async (entries: any[]) => {
+              for (let i = 0; i < entries.length; i++) {
+                await traverseFileTree(entries[i]);
+              }
+              resolve();
+            });
+          }
+        });
+      };
+
+      for (let i = 0; i < items.length; i++) {
+        const item = items[i].webkitGetAsEntry();
+        if (item) {
+          await traverseFileTree(item);
+        }
+      }
+    } else {
+      const files = Array.from(e.dataTransfer.files);
+      let isErr = files.some((item) => item.type === '');
+      if (isErr) {
+        return toast({
+          title: t('file.upload error description'),
+          status: 'error'
+        });
+      }
+
+      for (let i = 0; i < files.length; i++) {
+        fileList.push(files[i]);
+      }
+    }
+
+    onSelectFile(fileList);
+  }, []);
+
   return (
     <Box
       display={'inline-block'}
@@ -42,19 +109,28 @@ const FileSelect = ({
       w={'100%'}
       position={'relative'}
       {...props}
+      onDragEnter={handleDragEnter}
+      onDragOver={handleDragEnter}
+      onDragLeave={handleDragLeave}
+      onDrop={handleDrop}
     >
       <Flex justifyContent={'center'} alignItems={'center'}>
         <MyIcon mr={1} name={'uploadFile'} w={'16px'} />
-        {/* 拖拽文件至此，或{' '} */}
+        {isDragging ? (
-        点击
+          t('file.Release the mouse to upload the file')
-        <Box ml={1} as={'span'} cursor={'pointer'} color={'myBlue.700'} onClick={onOpen}>
+        ) : (
-          选择文件
+          <Box>
+            {t('file.Drag and drop')}
+            <Text ml={1} as={'span'} cursor={'pointer'} color={'myBlue.700'} onClick={onOpen}>
+              {t('file.select a document')}
+            </Text>
           </Box>
+        )}
       </Flex>
-      <Box mt={1}>支持 {fileExtension} 文件</Box>
+      <Box mt={1}>{t('file.support', { fileExtension: fileExtension })}</Box>
       {tipText && (
         <Box mt={1} fontSize={'sm'} color={'myGray.600'}>
-          {tipText}
+          {t(tipText)}
         </Box>
       )}
       {isCsv && (
@@ -72,7 +148,7 @@ const FileSelect = ({
             })
           }
         >
-          点击下载 CSV 模板
+          {t('file.Click to download CSV template')}
         </Box>
       )}
       <FileSelectLoading loading={isLoading} fixed={false} />