feat complete

package.json

@@ -71,6 +71,7 @@
     "@types/color-rgba": "^2.1.2",
     "@types/node": "^20.12.12",
     "@types/react": "^18.3.3",
+    "@types/react-beautiful-dnd": "^13.1.8",
     "@types/react-dom": "^18.3.0",
     "@types/react-helmet": "^6.1.11",
     "@typescript-eslint/eslint-plugin": "^6.21.0",

src/components/input/BaseFileInput.tsx

@@ -11,6 +11,7 @@ import {
 import { globalInputHeight } from '../../config/uiConfig';
 import { CustomSnackBarContext } from '../../contexts/CustomSnackBarContext';
 import greyPattern from '@assets/grey-pattern.png';
+import { isArray } from 'lodash';
 
 interface BaseFileInputComponentProps extends BaseFileInputProps {
   children: (props: { preview: string | undefined }) => ReactNode;
@@ -31,14 +32,18 @@ export default function BaseFileInput({
   const { showSnackBar } = useContext(CustomSnackBarContext);
 
   useEffect(() => {
-    if (value) {
-      const objectUrl = createObjectURL(value);
+    try {
+      if (isArray(value)) {
+        const objectUrl = createObjectURL(value[0]);
         setPreview(objectUrl);
 
         return () => revokeObjectURL(objectUrl);
       } else {
         setPreview(null);
       }
+    } catch (error) {
+      console.error('Error previewing file:', error);
+    }
   }, [value]);
 
   const handleFileChange = (event: React.ChangeEvent<HTMLInputElement>) => {
@@ -50,9 +55,9 @@ export default function BaseFileInput({
     fileInputRef.current?.click();
   };
   const handleCopy = () => {
-    if (value) {
-      const blob = new Blob([value], { type: value.type });
-      const clipboardItem = new ClipboardItem({ [value.type]: blob });
+    if (isArray(value)) {
+      const blob = new Blob([value[0]], { type: value[0].type });
+      const clipboardItem = new ClipboardItem({ [value[0].type]: blob });
 
       navigator.clipboard
         .write([clipboardItem])
@@ -63,6 +68,11 @@ export default function BaseFileInput({
     }
   };
 
+  function handleClear() {
+    // @ts-ignore
+    onChange(null);
+  }
+
   useEffect(() => {
     const handlePaste = (event: ClipboardEvent) => {
       const clipboardItems = event.clipboardData?.items ?? [];
@@ -141,13 +151,18 @@ export default function BaseFileInput({
           </Box>
         )}
       </Box>
-      <InputFooter handleCopy={handleCopy} handleImport={handleImportClick} />
+      <InputFooter
+        handleCopy={handleCopy}
+        handleImport={handleImportClick}
+        handleClear={handleClear}
+      />
       <input
         ref={fileInputRef}
         style={{ display: 'none' }}
         type="file"
         accept={accept.join(',')}
         onChange={handleFileChange}
+        multiple={false}
       />
     </Box>
   );

src/components/input/InputFooter.tsx

@@ -2,23 +2,32 @@ import { Stack } from '@mui/material';
 import Button from '@mui/material/Button';
 import PublishIcon from '@mui/icons-material/Publish';
 import ContentPasteIcon from '@mui/icons-material/ContentPaste';
-import React from 'react';
+import ClearIcon from '@mui/icons-material/Clear';
 
 export default function InputFooter({
   handleImport,
-  handleCopy
+  handleCopy,
+  handleClear
 }: {
   handleImport: () => void;
-  handleCopy: () => void;
+  handleCopy?: () => void;
+  handleClear?: () => void;
 }) {
   return (
     <Stack mt={1} direction={'row'} spacing={2}>
       <Button onClick={handleImport} startIcon={<PublishIcon />}>
         Import from file
       </Button>
+      {handleCopy && (
         <Button onClick={handleCopy} startIcon={<ContentPasteIcon />}>
           Copy to clipboard
         </Button>
+      )}
+      {handleClear && (
+        <Button onClick={handleClear} startIcon={<ClearIcon />}>
+          Clear
+        </Button>
+      )}
     </Stack>
   );
 }

src/components/input/ToolMultiplePdfInput.tsx

@@ -0,0 +1,193 @@
+import { ReactNode, useContext, useEffect, useRef, useState } from 'react';
+import { Box, useTheme } from '@mui/material';
+import Typography from '@mui/material/Typography';
+import InputHeader from '../InputHeader';
+import InputFooter from './InputFooter';
+import { CustomSnackBarContext } from '../../contexts/CustomSnackBarContext';
+import { isArray } from 'lodash';
+import PictureAsPdfIcon from '@mui/icons-material/PictureAsPdf';
+
+interface MultiPdfInputComponentProps {
+  accept: string[];
+  title?: string;
+  type: 'pdf';
+  value: MultiPdfInput[];
+  onChange: (file: MultiPdfInput[]) => void;
+}
+export interface MultiPdfInput {
+  file: File;
+  order: number;
+}
+
+export default function ToolMultiFileInput({
+  value,
+  onChange,
+  accept,
+  title,
+  type
+}: MultiPdfInputComponentProps) {
+  const theme = useTheme();
+  const fileInputRef = useRef<HTMLInputElement>(null);
+  const { showSnackBar } = useContext(CustomSnackBarContext);
+
+  const handleFileChange = (event: React.ChangeEvent<HTMLInputElement>) => {
+    const files = event.target.files;
+    if (files)
+      onChange([
+        ...value,
+        ...Array.from(files).map((file) => ({ file, order: value.length }))
+      ]);
+  };
+
+  const handleImportClick = () => {
+    fileInputRef.current?.click();
+  };
+
+  const handleCopy = () => {
+    if (isArray(value)) {
+      const blob = new Blob([value[0].file], { type: value[0].file.type });
+      const clipboardItem = new ClipboardItem({ [value[0].file.type]: blob });
+
+      navigator.clipboard
+        .write([clipboardItem])
+        .then(() => showSnackBar('File copied', 'success'))
+        .catch((err) => {
+          showSnackBar('Failed to copy: ' + err, 'error');
+        });
+    }
+  };
+
+  function handleClear() {
+    onChange([]);
+  }
+
+  function fileNameTruncate(fileName: string) {
+    const maxLength = 10;
+    if (fileName.length > maxLength) {
+      return fileName.slice(0, maxLength) + '...';
+    }
+    return fileName;
+  }
+
+  const sortList = () => {
+    const list = [...value];
+    list.sort((a, b) => a.order - b.order);
+    onChange(list);
+  };
+
+  const reorderList = (sourceIndex: number, destinationIndex: number) => {
+    console.log(sourceIndex, destinationIndex);
+    if (destinationIndex === sourceIndex) {
+      return;
+    }
+    const list = [...value];
+
+    if (destinationIndex === 0) {
+      list[sourceIndex].order = list[0].order - 1;
+      sortList();
+      return;
+    }
+
+    if (destinationIndex === list.length - 1) {
+      list[sourceIndex].order = list[list.length - 1].order + 1;
+      sortList();
+      return;
+    }
+
+    if (destinationIndex < sourceIndex) {
+      list[sourceIndex].order =
+        (list[destinationIndex].order + list[destinationIndex - 1].order) / 2;
+      sortList();
+      return;
+    }
+
+    list[sourceIndex].order =
+      (list[destinationIndex].order + list[destinationIndex + 1].order) / 2;
+    sortList();
+  };
+
+  return (
+    <Box>
+      <InputHeader
+        title={title || 'Input ' + type.charAt(0).toUpperCase() + type.slice(1)}
+      />
+      <Box
+        sx={{
+          width: '100%',
+          height: '300px',
+
+          border: value?.length ? 0 : 1,
+          borderRadius: 2,
+          boxShadow: '5',
+          bgcolor: 'background.paper',
+          position: 'relative'
+        }}
+      >
+        <Box
+          width="100%"
+          height="100%"
+          sx={{
+            overflow: 'auto',
+            display: 'flex',
+            alignItems: 'center',
+            justifyContent: 'center',
+            flexWrap: 'wrap',
+            position: 'relative'
+          }}
+        >
+          {value?.length ? (
+            value.map((file, index) => (
+              <Box
+                key={index}
+                sx={{
+                  margin: 1,
+                  display: 'flex',
+                  alignItems: 'center',
+                  justifyContent: 'space-between',
+                  width: '200px',
+                  border: 1,
+                  borderRadius: 1,
+                  padding: 1
+                }}
+              >
+                <Box sx={{ display: 'flex', alignItems: 'center' }}>
+                  <PictureAsPdfIcon />
+                  <Typography sx={{ marginLeft: 1 }}>
+                    {fileNameTruncate(file.file.name)}
+                  </Typography>
+                </Box>
+                <Box
+                  sx={{ cursor: 'pointer' }}
+                  onClick={() => {
+                    const updatedFiles = value.filter((_, i) => i !== index);
+                    onChange(updatedFiles);
+                  }}
+                >
+                  ✖
+                </Box>
+              </Box>
+            ))
+          ) : (
+            <Typography variant="body2" color="text.secondary">
+              No files selected
+            </Typography>
+          )}
+        </Box>
+      </Box>
+
+      <InputFooter
+        handleCopy={handleCopy}
+        handleImport={handleImportClick}
+        handleClear={handleClear}
+      />
+      <input
+        ref={fileInputRef}
+        style={{ display: 'none' }}
+        type="file"
+        accept={accept.join(',')}
+        onChange={handleFileChange}
+        multiple={true}
+      />
+    </Box>
+  );
+}

src/pages/tools/pdf/index.ts

@@ -1,5 +1,6 @@
 import { tool as pdfRotatePdf } from './rotate-pdf/meta';
 import { meta as splitPdfMeta } from './split-pdf/meta';
+import { meta as mergePdf } from './merge-pdf/meta';
 import { DefinedTool } from '@tools/defineTool';
 
-export const pdfTools: DefinedTool[] = [splitPdfMeta, pdfRotatePdf];
+export const pdfTools: DefinedTool[] = [splitPdfMeta, pdfRotatePdf, mergePdf];

src/pages/tools/pdf/merge-pdf/index.tsx

@@ -0,0 +1,67 @@
+import { useState } from 'react';
+import ToolFileResult from '@components/result/ToolFileResult';
+import ToolContent from '@components/ToolContent';
+import { ToolComponentProps } from '@tools/defineTool';
+import { mergePdf } from './service';
+import ToolMultiPdfInput, {
+  MultiPdfInput
+} from '@components/input/ToolMultiplePdfInput';
+
+export default function SplitPdf({ title }: ToolComponentProps) {
+  const [input, setInput] = useState<MultiPdfInput[]>([]);
+  const [result, setResult] = useState<File | null>(null);
+  const [isProcessing, setIsProcessing] = useState<boolean>(false);
+
+  const compute = async (values: File[], input: MultiPdfInput[]) => {
+    if (input.length === 0) {
+      return;
+    }
+
+    try {
+      setIsProcessing(true);
+      const mergeResult = await mergePdf(input.map((i) => i.file));
+      setResult(mergeResult);
+    } catch (error) {
+      throw new Error('Error merging PDF:' + error);
+    } finally {
+      setIsProcessing(false);
+    }
+  };
+
+  return (
+    <ToolContent
+      title={title}
+      input={input}
+      setInput={setInput}
+      initialValues={input.map((i) => i.file)}
+      compute={compute}
+      // exampleCards={exampleCards}
+      inputComponent={
+        <ToolMultiPdfInput
+          value={input}
+          onChange={(v) => {
+            setInput(v);
+          }}
+          accept={['application/pdf']}
+          title={'Input PDF'}
+          type="pdf"
+        />
+      }
+      getGroups={({ values, updateField }) => []}
+      resultComponent={
+        <ToolFileResult
+          title={'Output merged PDF'}
+          value={result}
+          extension={'pdf'}
+          loading={isProcessing}
+          loadingText={'Extracting pages'}
+        />
+      }
+      toolInfo={{
+        title: 'How to Use the Merge PDF Tool?',
+        description: `This tool allows you to merge multiple PDF files into a single document.
+        To use the tool, simply upload the PDF files you want to merge. The tool will then combine all pages from the input files into a single PDF document.`
+      }}
+    />
+  );
+}

src/pages/tools/pdf/merge-pdf/meta.ts

@@ -0,0 +1,12 @@
+import { defineTool } from '@tools/defineTool';
+import { lazy } from 'react';
+
+export const meta = defineTool('pdf', {
+  name: 'Merge PDF',
+  shortDescription: 'Merge multiple PDF files into a single document',
+  description: 'Combine multiple PDF files into a single document.',
+  icon: 'material-symbols-light:merge',
+  component: lazy(() => import('./index')),
+  keywords: ['pdf', 'merge', 'extract', 'pages', 'combine', 'document'],
+  path: 'merge-pdf'
+});

src/pages/tools/pdf/merge-pdf/service.test.ts

@@ -0,0 +1,43 @@
+import { parsePageRanges } from './service';
+
+describe('parsePageRanges', () => {
+  test('should return all pages when input is empty', () => {
+    expect(parsePageRanges('', 5)).toEqual([1, 2, 3, 4, 5]);
+  });
+
+  test('should parse single page numbers', () => {
+    expect(parsePageRanges('1,3,5', 5)).toEqual([1, 3, 5]);
+  });
+
+  test('should parse page ranges', () => {
+    expect(parsePageRanges('2-4', 5)).toEqual([2, 3, 4]);
+  });
+
+  test('should parse mixed page numbers and ranges', () => {
+    expect(parsePageRanges('1,3-5', 5)).toEqual([1, 3, 4, 5]);
+  });
+
+  test('should handle whitespace', () => {
+    expect(parsePageRanges(' 1, 3 - 5 ', 5)).toEqual([1, 3, 4, 5]);
+  });
+
+  test('should ignore invalid page numbers', () => {
+    expect(parsePageRanges('1,a,3', 5)).toEqual([1, 3]);
+  });
+
+  test('should ignore out-of-range page numbers', () => {
+    expect(parsePageRanges('1,6,3', 5)).toEqual([1, 3]);
+  });
+
+  test('should limit ranges to valid pages', () => {
+    expect(parsePageRanges('0-6', 5)).toEqual([1, 2, 3, 4, 5]);
+  });
+
+  test('should handle reversed ranges', () => {
+    expect(parsePageRanges('4-2', 5)).toEqual([2, 3, 4]);
+  });
+
+  test('should remove duplicates', () => {
+    expect(parsePageRanges('1,1,2,2-4,3', 5)).toEqual([1, 2, 3, 4]);
+  });
+});

src/pages/tools/pdf/merge-pdf/service.ts

@@ -0,0 +1,95 @@
+import { PDFDocument } from 'pdf-lib';
+
+/**
+ * Parses a page range string and returns an array of page numbers
+ * @param pageRangeStr String like "1,3-5,7" to extract pages 1, 3, 4, 5, and 7
+ * @param totalPages Total number of pages in the PDF
+ * @returns Array of page numbers to extract
+ */
+export function parsePageRanges(
+  pageRangeStr: string,
+  totalPages: number
+): number[] {
+  if (!pageRangeStr.trim()) {
+    return Array.from({ length: totalPages }, (_, i) => i + 1);
+  }
+
+  const pageNumbers = new Set<number>();
+  const ranges = pageRangeStr.split(',');
+
+  for (const range of ranges) {
+    const trimmedRange = range.trim();
+
+    if (trimmedRange.includes('-')) {
+      const [start, end] = trimmedRange.split('-').map(Number);
+      if (!isNaN(start) && !isNaN(end)) {
+        // Handle both forward and reversed ranges
+        const normalizedStart = Math.min(start, end);
+        const normalizedEnd = Math.max(start, end);
+
+        for (
+          let i = Math.max(1, normalizedStart);
+          i <= Math.min(totalPages, normalizedEnd);
+          i++
+        ) {
+          pageNumbers.add(i);
+        }
+      }
+    } else {
+      const pageNum = parseInt(trimmedRange, 10);
+      if (!isNaN(pageNum) && pageNum >= 1 && pageNum <= totalPages) {
+        pageNumbers.add(pageNum);
+      }
+    }
+  }
+
+  return [...pageNumbers].sort((a, b) => a - b);
+}
+
+/**
+ * Splits a PDF file based on specified page ranges
+ * @param pdfFile The input PDF file
+ * @param pageRanges String specifying which pages to extract (e.g., "1,3-5,7")
+ * @returns Promise resolving to a new PDF file with only the selected pages
+ */
+export async function splitPdf(
+  pdfFile: File,
+  pageRanges: string
+): Promise<File> {
+  const arrayBuffer = await pdfFile.arrayBuffer();
+  const sourcePdf = await PDFDocument.load(arrayBuffer);
+  const totalPages = sourcePdf.getPageCount();
+  const pagesToExtract = parsePageRanges(pageRanges, totalPages);
+
+  const newPdf = await PDFDocument.create();
+  const copiedPages = await newPdf.copyPages(
+    sourcePdf,
+    pagesToExtract.map((pageNum) => pageNum - 1)
+  );
+  copiedPages.forEach((page) => newPdf.addPage(page));
+
+  const newPdfBytes = await newPdf.save();
+  const newFileName = pdfFile.name.replace('.pdf', '-extracted.pdf');
+  return new File([newPdfBytes], newFileName, { type: 'application/pdf' });
+}
+
+/**
+ * Merges multiple PDF files into a single document
+ * @param pdfFiles Array of PDF files to merge
+ * @returns Promise resolving to a new PDF file with all pages combined
+ */
+export async function mergePdf(pdfFiles: File[]): Promise<File> {
+  const mergedPdf = await PDFDocument.create();
+  for (const pdfFile of pdfFiles) {
+    const arrayBuffer = await pdfFile.arrayBuffer();
+    const pdf = await PDFDocument.load(arrayBuffer);
+    const copiedPages = await mergedPdf.copyPages(pdf, pdf.getPageIndices());
+    copiedPages.forEach((page) => mergedPdf.addPage(page));
+  }
+
+  const mergedPdfBytes = await mergedPdf.save();
+  const mergedFileName = 'merged.pdf';
+  return new File([mergedPdfBytes], mergedFileName, {
+    type: 'application/pdf'
+  });
+}

src/pages/tools/pdf/rotate-pdf/index.tsx

@@ -10,6 +10,7 @@ import { InitialValuesType, RotationAngle } from './types';
 import { parsePageRanges, rotatePdf } from './service';
 import SimpleRadio from '@components/options/SimpleRadio';
 import TextFieldWithDesc from '@components/options/TextFieldWithDesc';
+import { isArray } from 'lodash';
 
 const initialValues: InitialValuesType = {
   rotationAngle: 90,
@@ -138,7 +139,9 @@ export default function RotatePdf({
       inputComponent={
         <ToolPdfInput
           value={input}
-          onChange={setInput}
+          onChange={(v) => {
+            setInput(isArray(v) ? v[0] : v);
+          }}
           accept={['application/pdf']}
           title={'Input PDF'}
         />

src/pages/tools/pdf/split-pdf/index.tsx

@@ -1,5 +1,5 @@
 import { Box, Typography } from '@mui/material';
-import React, { useEffect, useState } from 'react';
+import { useEffect, useState } from 'react';
 import ToolFileResult from '@components/result/ToolFileResult';
 import TextFieldWithDesc from '@components/options/TextFieldWithDesc';
 import ToolContent from '@components/ToolContent';
@@ -8,6 +8,7 @@ import { parsePageRanges, splitPdf } from './service';
 import { CardExampleType } from '@components/examples/ToolExamples';
 import { PDFDocument } from 'pdf-lib';
 import ToolPdfInput from '@components/input/ToolPdfInput';
+import { isArray } from 'lodash';
 
 type InitialValuesType = {
   pageRanges: string;
@@ -116,7 +117,10 @@ export default function SplitPdf({ title }: ToolComponentProps) {
       inputComponent={
         <ToolPdfInput
           value={input}
-          onChange={setInput}
+          onChange={(v) => {
+            setInput(isArray(v) ? v[0] : v);
+          }}
+          multiple={false}
           accept={['application/pdf']}
           title={'Input PDF'}
         />