Improve README translation workflow with chunked processing

Replaces the previous DeepL GitHub Action with a custom Node.js script that splits README.md into chunks for translation, improving handling of large files and preserving structure. Adds steps to set up Node.js, install dependencies, and process translation in segments, with enhanced commit messages reflecting translation statistics and features.

.github/workflows/translate-readme.yml

@@ -25,13 +25,102 @@ jobs:
           token: ${{ secrets.GITHUB_TOKEN }}
           fetch-depth: 0
 
-      - name: Translate README to English
-        uses: lyqht/deepl-translate-github-action@v2.2.0
+      - name: Setup Node.js for chunked translation
+        uses: actions/setup-node@v4
         with:
-          deepl_api_key: ${{ secrets.DEEPL_API_KEY }}
-          target_languages: en
-          input_file_path: README.md
-          output_file_name_pattern: README.{language}.md
+          node-version: "20"
+
+      - name: Install dependencies
+        run: |
+          npm install deepl-node
+
+      - name: Split and translate README in chunks
+        run: |
+          # 创建分块翻译脚本
+          cat > translate_chunks.js << 'EOF'
+          const fs = require('fs');
+          const { Translator } = require('deepl-node');
+
+          const translator = new Translator(process.env.DEEPL_API_KEY);
+
+          async function translateFile() {
+            try {
+              const content = fs.readFileSync('README.md', 'utf8');
+
+              // 智能分块：按段落和标题分割，避免破坏结构
+              const sections = content.split(/(?=^#{1,6}\s)/m);
+              const chunks = [];
+              let currentChunk = '';
+              const maxChunkSize = 3800; // 字符数限制，留有安全边际
+
+              for (const section of sections) {
+                if ((currentChunk + section).length > maxChunkSize && currentChunk) {
+                  chunks.push(currentChunk.trim());
+                  currentChunk = section;
+                } else {
+                  currentChunk += section;
+                }
+              }
+
+              if (currentChunk.trim()) {
+                chunks.push(currentChunk.trim());
+              }
+
+              console.log(`📄 文件大小: ${content.length} 字符`);
+              console.log(`📦 分为 ${chunks.length} 块进行翻译`);
+
+              const translatedChunks = [];
+
+              for (let i = 0; i < chunks.length; i++) {
+                const chunkSize = chunks[i].length;
+                console.log(`🔄 翻译第 ${i + 1}/${chunks.length} 块 (${chunkSize} 字符)...`);
+
+                try {
+                  const result = await translator.translateText(
+                    chunks[i],
+                    'zh',
+                    'en-US',
+                    {
+                      preserveFormatting: true,
+                      tagHandling: 'html'
+                    }
+                  );
+                  translatedChunks.push(result.text);
+                  console.log(`✅ 第 ${i + 1} 块翻译完成`);
+
+                  // 添加延迟避免API限制
+                  if (i < chunks.length - 1) {
+                    await new Promise(resolve => setTimeout(resolve, 2000));
+                  }
+                } catch (error) {
+                  console.error(`❌ 翻译第 ${i + 1} 块时出错:`, error.message);
+                  // 如果翻译失败，保留原文并添加错误标记
+                  translatedChunks.push(`<!-- 翻译失败，保留原文 -->\n${chunks[i]}`);
+                }
+              }
+
+              const translatedContent = translatedChunks.join('\n\n');
+              fs.writeFileSync('README.en.md', translatedContent);
+              console.log('🎉 翻译完成！');
+
+              // 检查翻译质量
+              const originalLines = content.split('\n').length;
+              const translatedLines = translatedContent.split('\n').length;
+              console.log(`📊 原文行数: ${originalLines}, 译文行数: ${translatedLines}`);
+
+            } catch (error) {
+              console.error('❌ 翻译过程中发生错误:', error);
+              process.exit(1);
+            }
+          }
+
+          translateFile();
+          EOF
+
+          # 运行翻译脚本
+          node translate_chunks.js
+        env:
+          DEEPL_API_KEY: ${{ secrets.DEEPL_API_KEY }}
 
       - name: Update language link and add translation notice
         run: |
@@ -77,11 +166,19 @@ jobs:
             if git diff --staged --quiet; then
               echo "No changes to commit"
             else
-              git commit -m "🌐 Auto-translate README.md to English using DeepL
+              # 计算文件统计信息
+              original_lines=$(wc -l < README.md)
+              translated_lines=$(wc -l < README.en.md)
 
+              git commit -m "🌐 Auto-translate README.md to English using DeepL (Chunked)
+
+              📄 Processed large README.md in chunks for optimal translation quality
+              📊 Original: ${original_lines} lines → Translated: ${translated_lines} lines
+              ✨ Features:
               - Generated README.en.md from README.md
               - Updated language links
               - Added translation disclaimer
+              - Intelligent chunk processing to maintain structure
 
               Co-authored-by: DeepL <https://www.deepl.com/>"
               git push