LiangShiyong
4fcc92a381
2. 合同模板对比接入monaco editor的效果。 3. 添加交叉评查的案卷类型的数据查询。 fix: 1. 修复文档列表的打开模态框蒙板层显示效果。
702 lines
23 KiB
TypeScript
702 lines
23 KiB
TypeScript
/**
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* ComparePreview - Document Comparison Preview Component
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*
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* Features:
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* - Compare two documents using Monaco Editor
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* - Support PDF and Word (.docx) files
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* - Automatic text extraction and line-by-line comparison
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* - Navigation between differences
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*
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* Props:
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* - doc1Path: Original document path
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* - doc2Path: Comparison document path
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*/
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import React, { useState, useRef, useEffect } from "react";
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import { DiffEditor } from "@monaco-editor/react";
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import type { editor } from "monaco-editor";
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import { pdfjs } from 'react-pdf';
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import mammoth from 'mammoth';
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import { toastService } from '~/components/ui/Toast';
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import { DOCUMENT_URL } from '~/config/api-config';
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// Setup PDF.js worker
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pdfjs.GlobalWorkerOptions.workerSrc = '/pdf.worker.js';
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// Document type enum
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type DocumentType = 'pdf' | 'docx' | 'unknown';
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// PDF type enum
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type PdfType = 'text' | 'scanned' | 'unknown';
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// PDF info interface
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interface PdfInfo {
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type: PdfType;
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numPages: number;
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textLength: number;
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confidence: number;
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}
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// Document info interface
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interface DocumentInfo {
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fileType: DocumentType;
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pdfType?: PdfType;
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numPages?: number;
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textLength: number;
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confidence: number;
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}
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// Component Props interface
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interface ComparePreviewProps {
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doc1Path: string;
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doc2Path: string;
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}
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export function ComparePreview({ doc1Path, doc2Path }: ComparePreviewProps): JSX.Element {
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// 如果没有模板合同路径，直接返回提示
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if (!doc2Path || doc2Path.trim() === '') {
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return (
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<div style={{
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height: '100%',
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width: '100%',
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display: 'flex',
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alignItems: 'center',
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justifyContent: 'center',
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padding: '40px',
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backgroundColor: '#f9f9f9'
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}}>
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<div style={{
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maxWidth: '500px',
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textAlign: 'center',
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padding: '32px',
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backgroundColor: '#fff',
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borderRadius: '8px',
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boxShadow: '0 2px 8px rgba(0, 0, 0, 0.1)',
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border: '1px solid #e0e0e0'
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}}>
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<div style={{
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width: '64px',
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height: '64px',
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margin: '0 auto 24px',
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backgroundColor: '#fff3cd',
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borderRadius: '50%',
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display: 'flex',
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alignItems: 'center',
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justifyContent: 'center',
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border: '3px solid #ffc107'
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}}>
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<i className="ri-file-warning-line" style={{ fontSize: '32px', color: '#ff9800' }}></i>
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</div>
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<h3 style={{
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fontSize: '20px',
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fontWeight: '600',
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color: '#333',
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marginBottom: '12px'
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}}>
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无法进行对比
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</h3>
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<p style={{
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fontSize: '14px',
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color: '#666',
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lineHeight: '1.6',
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marginBottom: '16px'
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}}>
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该文档类型暂未上传模板合同，无法进行对比分析。
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</p>
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<div style={{
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padding: '12px 16px',
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backgroundColor: '#fff3cd',
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border: '1px solid #ffc107',
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borderRadius: '4px',
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fontSize: '13px',
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color: '#856404',
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lineHeight: '1.5'
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}}>
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<i className="ri-error-warning-line" style={{ marginRight: '6px' }}></i>
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<strong>提示：</strong>请先在文档类型管理中为该类型上传模板合同，然后重新加载此页面。
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</div>
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</div>
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</div>
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);
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}
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const [originalText, setOriginalText] = useState<string>('');
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const [modifiedText, setModifiedText] = useState<string>('');
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const diffEditorRef = useRef<editor.IStandaloneDiffEditor | null>(null);
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const [diffCount, setDiffCount] = useState<number>(0);
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const [currentDiff, setCurrentDiff] = useState<number>(0);
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const [doc1Info, setDoc1Info] = useState<DocumentInfo | null>(null);
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const [doc2Info, setDoc2Info] = useState<DocumentInfo | null>(null);
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const [isLoadingDoc1, setIsLoadingDoc1] = useState(false);
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const [isLoadingDoc2, setIsLoadingDoc2] = useState(false);
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// Log initial props
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// console.log('[ComparePreview] Component initialized with paths:', { doc1Path, doc2Path });
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// Detect file type based on file path
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const detectFileType = (filePath: string): DocumentType => {
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const lowerPath = filePath.toLowerCase();
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if (lowerPath.endsWith('.pdf')) return 'pdf';
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if (lowerPath.endsWith('.docx') || lowerPath.endsWith('.doc')) return 'docx';
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return 'unknown';
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};
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// PDF type detection function
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const detectPdfType = async (pdfUrl: string): Promise<PdfInfo> => {
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const loadingTask = pdfjs.getDocument(pdfUrl);
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const pdf = await loadingTask.promise;
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let totalTextLength = 0;
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const pagesToCheck = Math.min(pdf.numPages, 3);
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for (let i = 1; i <= pagesToCheck; i++) {
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const page = await pdf.getPage(i);
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const textContent = await page.getTextContent();
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const pageText = textContent.items
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.map((item: any) => item.str)
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.join('');
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totalTextLength += pageText.length;
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}
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const avgTextPerPage = totalTextLength / pagesToCheck;
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const confidence = Math.min(avgTextPerPage / 500, 1);
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let type: PdfType;
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if (avgTextPerPage > 100) {
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type = 'text';
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} else if (avgTextPerPage > 10) {
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type = 'scanned';
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} else {
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type = 'unknown';
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}
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return {
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type,
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numPages: pdf.numPages,
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textLength: totalTextLength,
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confidence
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};
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};
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// PDF text extraction function
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const extractTextFromPdf = async (pdfUrl: string): Promise<string> => {
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const loadingTask = pdfjs.getDocument(pdfUrl);
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const pdf = await loadingTask.promise;
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let fullText = '';
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for (let i = 1; i <= pdf.numPages; i++) {
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const page = await pdf.getPage(i);
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const textContent = await page.getTextContent();
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const pageText = textContent.items
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.map((item: any) => item.str)
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.join(' ');
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fullText += `\n========== Page ${i} ==========\n${pageText}\n`;
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}
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return fullText;
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};
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// Word document text extraction function
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const extractTextFromWord = async (docUrl: string): Promise<string> => {
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const response = await fetch(docUrl);
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if (!response.ok) {
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throw new Error(`Cannot load document: ${response.statusText}`);
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}
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const arrayBuffer = await response.arrayBuffer();
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const textResult = await mammoth.extractRawText({ arrayBuffer });
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return textResult.value;
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};
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// Load document and extract text (supports PDF and Word)
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const loadDocumentAndExtractText = async (
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docPath: string,
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setDocInfo: (info: DocumentInfo | null) => void,
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setLoading: (loading: boolean) => void,
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setTextContent: (text: string) => void
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) => {
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try {
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setLoading(true);
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const docUrl = docPath.startsWith('http') ? docPath : `${DOCUMENT_URL}${docPath}`;
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// console.log('[ComparePreview] Loading document:', docUrl);
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const fileType = detectFileType(docPath);
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if (fileType === 'pdf') {
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const pdfInfo = await detectPdfType(docUrl);
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const text = await extractTextFromPdf(docUrl);
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const docInfo: DocumentInfo = {
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fileType: 'pdf',
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pdfType: pdfInfo.type,
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numPages: pdfInfo.numPages,
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textLength: pdfInfo.textLength,
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confidence: pdfInfo.confidence
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};
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setDocInfo(docInfo);
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setTextContent(text);
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// console.log('[ComparePreview] PDF text extracted:', {
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// path: docPath,
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// textLength: text.length,
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// firstChars: text.substring(0, 100)
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// });
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if (pdfInfo.type === 'text') {
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toastService.success(`PDF加载成功！共 ${pdfInfo.numPages} 页，提取了 ${pdfInfo.textLength} 个字符`);
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} else if (pdfInfo.type === 'scanned') {
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toastService.warning('检测到扫描版PDF，文本提取质量可能较低');
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} else {
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toastService.error('无法识别PDF类型，可能是图片PDF');
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}
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} else if (fileType === 'docx') {
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const text = await extractTextFromWord(docUrl);
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const docInfo: DocumentInfo = {
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fileType: 'docx',
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textLength: text.length,
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confidence: 1.0
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};
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setDocInfo(docInfo);
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setTextContent(text);
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// console.log('[ComparePreview] Word text extracted:', {
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// path: docPath,
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// textLength: text.length,
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// firstChars: text.substring(0, 100)
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// });
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toastService.success(`Word文档加载成功！提取了 ${text.length} 个字符`);
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} else {
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toastService.error('不支持的文件类型');
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setTextContent('');
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}
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} catch (error) {
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console.error('Document loading failed:', error);
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toastService.error(`文档加载失败: ${error instanceof Error ? error.message : '未知错误'}`);
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setDocInfo(null);
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setTextContent('');
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} finally {
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setLoading(false);
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}
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};
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// Monaco Editor mount callback
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const handleEditorDidMount = (editor: editor.IStandaloneDiffEditor) => {
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diffEditorRef.current = editor;
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// console.log('[ComparePreview] Editor mounted, checking differences...', {
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// originalTextLength: originalText.length,
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// modifiedTextLength: modifiedText.length
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// });
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// Polling function to get diff results
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// Monaco Editor's diff calculation is asynchronous and may return null initially
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let retryCount = 0;
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const maxRetries = 20; // Maximum 20 attempts
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const retryInterval = 150; // Check every 150ms
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const pollForDiffChanges = () => {
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retryCount++;
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const lineChanges = editor.getLineChanges();
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// console.log(`[ComparePreview] Polling attempt ${retryCount}:`, {
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// lineChanges: lineChanges ? `${lineChanges.length} changes` : 'null',
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// hasLineChanges: lineChanges !== null
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// });
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// If we got the diff results
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if (lineChanges !== null) {
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setDiffCount(lineChanges.length);
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// console.log(`[ComparePreview] ✅ Successfully got ${lineChanges.length} differences on attempt ${retryCount}`);
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// Verify the result makes sense
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if (lineChanges.length === 0 && originalText.length > 0 && modifiedText.length > 0) {
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const textsAreIdentical = originalText === modifiedText;
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// console.log('[ComparePreview] Texts are identical?', textsAreIdentical);
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if (textsAreIdentical) {
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// console.log('[ComparePreview] ℹ️ Documents are identical - 0 differences is correct');
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} else {
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console.warn('[ComparePreview] ⚠️ Documents differ but Monaco shows 0 differences');
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// console.log('[ComparePreview] Original text sample:', originalText.substring(0, 100));
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// console.log('[ComparePreview] Modified text sample:', modifiedText.substring(0, 100));
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}
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}
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return; // Stop polling
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}
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// If still null and haven't exceeded max retries, try again
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if (retryCount < maxRetries) {
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setTimeout(pollForDiffChanges, retryInterval);
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} else {
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console.error(`[ComparePreview] ❌ Failed to get diff results after ${maxRetries} attempts`);
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setDiffCount(0);
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}
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};
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// Start polling after a short delay
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setTimeout(pollForDiffChanges, 100);
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};
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// Add highlight flash animation when navigating to a difference
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const addFlashHighlight = (editor: editor.ICodeEditor, lineNumber: number) => {
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const decorations = editor.deltaDecorations([], [
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{
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range: new (window as any).monaco.Range(lineNumber, 1, lineNumber, 1),
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options: {
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isWholeLine: true,
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className: 'diff-flash-highlight',
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}
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}
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]);
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// Remove the highlight after animation completes
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setTimeout(() => {
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editor.deltaDecorations(decorations, []);
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}, 1000);
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};
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// Go to next difference
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const goToNextDiff = () => {
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if (!diffEditorRef.current) return;
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const lineChanges = diffEditorRef.current.getLineChanges();
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if (!lineChanges || lineChanges.length === 0) return;
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const nextIndex = (currentDiff + 1) % lineChanges.length;
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const nextChange = lineChanges[nextIndex];
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const modifiedEditor = diffEditorRef.current.getModifiedEditor();
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modifiedEditor.revealLineInCenter(nextChange.modifiedStartLineNumber);
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modifiedEditor.setPosition({
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lineNumber: nextChange.modifiedStartLineNumber,
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column: 1
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});
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// Add flash highlight
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addFlashHighlight(modifiedEditor, nextChange.modifiedStartLineNumber);
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setCurrentDiff(nextIndex);
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};
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// Go to previous difference
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const goToPreviousDiff = () => {
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if (!diffEditorRef.current) return;
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const lineChanges = diffEditorRef.current.getLineChanges();
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if (!lineChanges || lineChanges.length === 0) return;
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const prevIndex = currentDiff === 0 ? lineChanges.length - 1 : currentDiff - 1;
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const prevChange = lineChanges[prevIndex];
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const modifiedEditor = diffEditorRef.current.getModifiedEditor();
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modifiedEditor.revealLineInCenter(prevChange.modifiedStartLineNumber);
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modifiedEditor.setPosition({
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lineNumber: prevChange.modifiedStartLineNumber,
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column: 1
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});
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// Add flash highlight
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addFlashHighlight(modifiedEditor, prevChange.modifiedStartLineNumber);
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setCurrentDiff(prevIndex);
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};
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// Load documents on mount
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useEffect(() => {
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// console.log('[ComparePreview] Doc1 path changed:', doc1Path);
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if (doc1Path) {
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loadDocumentAndExtractText(doc1Path, setDoc1Info, setIsLoadingDoc1, setOriginalText);
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} else {
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setOriginalText('');
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}
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}, [doc1Path]);
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useEffect(() => {
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// console.log('[ComparePreview] Doc2 path changed:', doc2Path);
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if (doc2Path) {
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loadDocumentAndExtractText(doc2Path, setDoc2Info, setIsLoadingDoc2, setModifiedText);
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} else {
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setModifiedText('');
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}
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}, [doc2Path]);
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// Recalculate differences when text changes
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useEffect(() => {
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// console.log('[ComparePreview] Text changed, recalculating differences...', {
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// originalTextLength: originalText.length,
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// modifiedTextLength: modifiedText.length,
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// hasEditor: !!diffEditorRef.current
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// });
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const timer = setTimeout(() => {
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if (diffEditorRef.current) {
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const lineChanges = diffEditorRef.current.getLineChanges();
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if (lineChanges) {
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setDiffCount(lineChanges.length);
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// console.log(`[ComparePreview] Recalculated differences: ${lineChanges.length} found`);
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// 如果文本都不为空但差异为0，打印警告
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if (lineChanges.length === 0 && originalText.length > 0 && modifiedText.length > 0) {
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console.warn('[ComparePreview] Warning: Both texts loaded but 0 differences found!', {
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doc1PathsMatch: doc1Path === doc2Path,
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originalSample: originalText.substring(0, 50),
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modifiedSample: modifiedText.substring(0, 50)
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});
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}
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}
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}
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}, 100);
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return () => clearTimeout(timer);
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}, [originalText, modifiedText, doc1Path, doc2Path]);
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return (
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<div className="compare-preview-container" style={{
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height: '100%',
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width: '100%',
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display: 'flex',
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flexDirection: 'column',
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overflow: 'hidden'
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}}>
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{/* Character-level diff highlighting styles */}
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<style>{`
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.compare-preview-container {
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height: 100%;
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width: 100%;
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}
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.monaco-diff-editor .char-insert {
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background-color: rgba(100, 150, 50, 0.6) !important;
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}
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.monaco-diff-editor .char-delete {
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background-color: rgba(200, 50, 50, 0.5) !important;
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}
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.monaco-diff-editor .line-insert .char-insert {
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background-color: rgba(100, 150, 50, 0.7) !important;
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}
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.monaco-diff-editor .line-delete .char-delete {
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background-color: rgba(200, 50, 50, 0.6) !important;
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}
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/* Flash highlight animation for navigation */
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.diff-flash-highlight {
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background-color: rgba(255, 200, 0, 0.3) !important;
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animation: flash-pulse 1s ease-in-out;
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}
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@keyframes flash-pulse {
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0%, 100% { background-color: rgba(255, 200, 0, 0); }
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50% { background-color: rgba(255, 200, 0, 0.5); }
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}
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/* Navigation button focus styles */
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.nav-diff-button {
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padding: 6px 12px;
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background-color: #fff;
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border: 1px solid #d0d0d0;
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border-radius: 4px;
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cursor: pointer;
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font-size: 14px;
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display: flex;
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align-items: center;
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gap: 6px;
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transition: all 0.2s ease;
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}
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.nav-diff-button:hover:not(:disabled) {
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background-color: #f0f0f0;
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border-color: #00684a;
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}
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||
|
||
.nav-diff-button:focus {
|
||
outline: none;
|
||
border-color: #00684a;
|
||
box-shadow: 0 0 0 2px rgba(0, 104, 74, 0.2);
|
||
}
|
||
|
||
.nav-diff-button:active:not(:disabled) {
|
||
background-color: #e0e0e0;
|
||
}
|
||
|
||
.nav-diff-button:disabled {
|
||
cursor: not-allowed;
|
||
opacity: 0.5;
|
||
}
|
||
`}</style>
|
||
|
||
{/* Toolbar and Info banner - combined in one row */}
|
||
<div style={{
|
||
padding: '12px 16px',
|
||
borderBottom: '1px solid #e0e0e0',
|
||
backgroundColor: '#f5f5f5',
|
||
display: 'flex',
|
||
alignItems: 'center',
|
||
justifyContent: 'space-between',
|
||
gap: '16px'
|
||
}}>
|
||
{/* Left side: Toolbar controls */}
|
||
<div style={{ display: 'flex', alignItems: 'center', gap: '12px', flexShrink: 0 }}>
|
||
{/* Diff statistics */}
|
||
<div style={{
|
||
padding: '6px 12px',
|
||
backgroundColor: '#fff',
|
||
border: '1px solid #d0d0d0',
|
||
borderRadius: '4px',
|
||
fontSize: '14px',
|
||
color: '#333'
|
||
}}>
|
||
<i className="ri-git-compare-line" style={{ marginRight: '6px', color: '#00684a' }}></i>
|
||
发现 <strong style={{ color: '#00684a' }}>{diffCount}</strong> 处差异
|
||
{diffCount > 0 && ` (当前: ${currentDiff + 1}/${diffCount})`}
|
||
</div>
|
||
|
||
{/* Navigation buttons */}
|
||
<button
|
||
className="nav-diff-button"
|
||
onClick={goToPreviousDiff}
|
||
disabled={diffCount === 0}
|
||
>
|
||
<i className="ri-arrow-up-line"></i>
|
||
上一处差异
|
||
</button>
|
||
|
||
<button
|
||
className="nav-diff-button"
|
||
onClick={goToNextDiff}
|
||
disabled={diffCount === 0}
|
||
>
|
||
<i className="ri-arrow-down-line"></i>
|
||
下一处差异
|
||
</button>
|
||
</div>
|
||
|
||
{/* Right side: Info banner */}
|
||
<div style={{
|
||
display: 'flex',
|
||
alignItems: 'center',
|
||
gap: '8px',
|
||
padding: '6px 12px',
|
||
backgroundColor: '#e7f3ff',
|
||
border: '1px solid #b3d9ff',
|
||
borderRadius: '4px',
|
||
fontSize: '13px',
|
||
color: '#004085',
|
||
flexShrink: 1,
|
||
minWidth: 0
|
||
}}>
|
||
<i className="ri-information-line" style={{ fontSize: '16px', flexShrink: 0 }}></i>
|
||
<div style={{ lineHeight: '1.5', whiteSpace: 'nowrap', overflow: 'hidden', textOverflow: 'ellipsis' }}>
|
||
<strong>差异高亮说明：</strong>
|
||
<span style={{ marginLeft: '8px' }}>
|
||
<span style={{ color: '#dc3545', fontWeight: 'bold' }}>左侧红色</span>：原始版本 |
|
||
<span style={{ color: '#28a745', fontWeight: 'bold', marginLeft: '8px' }}>右侧绿色</span>：修改版本 |
|
||
<span style={{ color: '#666', fontWeight: 'bold', marginLeft: '8px' }}>深色高亮</span>：字符差异
|
||
</span>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
{/* Diff Editor main area */}
|
||
<div style={{ flex: 1, overflow: 'hidden', position: 'relative' }}>
|
||
{/* 只有当两个文本都加载完成后才渲染 Monaco Editor */}
|
||
{originalText && modifiedText && !isLoadingDoc1 && !isLoadingDoc2 ? (
|
||
<DiffEditor
|
||
key={`${doc1Path}-${doc2Path}-${originalText.length}-${modifiedText.length}`}
|
||
height="100%"
|
||
language="plaintext"
|
||
original={originalText}
|
||
modified={modifiedText}
|
||
onMount={handleEditorDidMount}
|
||
theme="vs"
|
||
options={{
|
||
readOnly: true,
|
||
renderSideBySide: true,
|
||
ignoreTrimWhitespace: false,
|
||
renderWhitespace: 'selection',
|
||
fontSize: 14,
|
||
lineNumbers: 'on',
|
||
minimap: {
|
||
enabled: true
|
||
},
|
||
scrollBeyondLastLine: false,
|
||
wordWrap: 'on',
|
||
automaticLayout: true,
|
||
renderIndicators: true,
|
||
diffWordWrap: 'on',
|
||
enableSplitViewResizing: true,
|
||
diffAlgorithm: 'advanced',
|
||
}}
|
||
/>
|
||
) : (
|
||
<div style={{
|
||
height: '100%',
|
||
display: 'flex',
|
||
alignItems: 'center',
|
||
justifyContent: 'center',
|
||
color: '#666',
|
||
fontSize: '14px'
|
||
}}>
|
||
{isLoadingDoc1 || isLoadingDoc2 ? (
|
||
<span>正在加载文档...</span>
|
||
) : (
|
||
<span>等待文档加载...</span>
|
||
)}
|
||
</div>
|
||
)}
|
||
|
||
{/* Loading overlay */}
|
||
{(isLoadingDoc1 || isLoadingDoc2) && (
|
||
<div style={{
|
||
position: 'absolute',
|
||
top: 0,
|
||
left: 0,
|
||
right: 0,
|
||
bottom: 0,
|
||
backgroundColor: 'rgba(255, 255, 255, 0.9)',
|
||
display: 'flex',
|
||
alignItems: 'center',
|
||
justifyContent: 'center',
|
||
zIndex: 1000
|
||
}}>
|
||
<div style={{ textAlign: 'center' }}>
|
||
<div style={{
|
||
width: '48px',
|
||
height: '48px',
|
||
border: '4px solid #f3f3f3',
|
||
borderTop: '4px solid #00684a',
|
||
borderRadius: '50%',
|
||
animation: 'spin 1s linear infinite',
|
||
margin: '0 auto 16px'
|
||
}}></div>
|
||
<div style={{ fontSize: '16px', color: '#333' }}>
|
||
正在加载文档并提取文本...
|
||
</div>
|
||
{isLoadingDoc1 && <div style={{ fontSize: '14px', color: '#666', marginTop: '8px' }}>📄 加载原始文档</div>}
|
||
{isLoadingDoc2 && <div style={{ fontSize: '14px', color: '#666', marginTop: '8px' }}>📄 加载对比文档</div>}
|
||
</div>
|
||
</div>
|
||
)}
|
||
</div>
|
||
|
||
{/* Spinner animation */}
|
||
<style>{`
|
||
@keyframes spin {
|
||
0% { transform: rotate(0deg); }
|
||
100% { transform: rotate(360deg); }
|
||
}
|
||
`}</style>
|
||
</div>
|
||
);
|
||
}
|