name: Weekly Translation Workflow

on:
  schedule:
    - cron: '0 2 * * 0'
  workflow_dispatch:

permissions:
  contents: write

jobs:
  translate:
    runs-on: ubuntu-latest
    
    steps:
    - name: Checkout repository
      uses: actions/checkout@v4
      with:
        fetch-depth: 0
    
    - name: Set up Python
      uses: actions/setup-python@v4
      with:
        python-version: '3.9'
    
    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install deep-translator
    
    - name: Create translation directories
      run: |
        mkdir -p en tw kr jp
    
    - name: Create translation script
      run: |
        cat > translate.py << 'EOF'
        #!/usr/bin/env python3
        # -*- coding: utf-8 -*-
        from deep_translator import GoogleTranslator
        import re
        import os
        import sys
        
        def is_chinese(text):
            return bool(re.search(r'[\u4e00-\u9fff]', text))
        
        def translate_text(text, target_lang):
            if not text.strip() or not is_chinese(text):
                return text
            try:
                # 过滤掉一些不该翻译的特殊符号
                clean_text = text.strip()
                result = GoogleTranslator(source='zh-CN', target=target_lang).translate(clean_text)
                return result
            except Exception as e:
                print(f"\n[Error] {e}")
                return text

        def process_content_with_vars(content, target_lang):
            """
            核心逻辑：保护 ${var} 和 $var，翻译其中的中文部分
            """
            # 匹配 ${var} 或 $var (字母数字下划线)
            parts = re.split(r'(\$\{\w+\}|\$\w+)', content)
            translated_parts = []
            for p in parts:
                if p.startswith('$'): # 变量部分，保持原样
                    translated_parts.append(p)
                elif is_chinese(p): # 中文部分，翻译
                    translated_parts.append(translate_text(p, target_lang))
                else: # 其他英文/符号，保持原样
                    translated_parts.append(p)
            return "".join(translated_parts)

        def universal_translator(line, target_lang):
            """
            通用翻译引擎：识别行内所有引号内容并翻译
            """
            # 1. 保护注释行
            leading_space = re.match(r'^(\s*)', line).group(1)
            stripped = line.strip()
            if stripped.startswith('#'):
                comment_content = stripped[1:].strip()
                if is_chinese(comment_content):
                    return f"{leading_space}# {translate_text(comment_content, target_lang)}\n"
                return line

            # 2. 识别所有引号内的内容 (双引号或单引号)
            # 使用正则匹配引号对，同时处理转义引号 \"
            def replacer(match):
                quote_type = match.group(1) # ' 或 "
                content = match.group(2)    # 引号内的文本内容
                if is_chinese(content):
                    # 翻译内容，但保护里面的变量
                    translated = process_content_with_vars(content, target_lang)
                    return f"{quote_type}{translated}{quote_type}"
                return match.group(0)

            # 匹配 "content" 或 'content'
            new_line = re.sub(r'([\'"])(.*?)(?<!\\)\1', replacer, line)
            return new_line
        
        def translate_file(input_file, output_file, target_lang):
            print(f"Translating to {target_lang}...")
            if not os.path.exists(input_file): return False
            
            with open(input_file, 'r', encoding='utf-8') as f:
                lines = f.readlines()
            
            total = len(lines)
            with open(output_file, 'w', encoding='utf-8') as f_out:
                for i, line in enumerate(lines):
                    if (i + 1) % 10 == 0 or i + 1 == total:
                        print(f"\rProgress: {(i+1)/total*100:.1f}%", end='')
                    
                    # 只要行内有中文，就尝试用通用引擎翻译
                    if is_chinese(line):
                        f_out.write(universal_translator(line, target_lang))
                    else:
                        f_out.write(line)
            print(f"\n{target_lang} Success.")
            return True
        
        if __name__ == "__main__":
            input_file = 'kejilion.sh'
            langs = {'en': 'en', 'tw': 'zh-TW', 'kr': 'ko', 'jp': 'ja'}
            for dir_name, lang_code in langs.items():
                translate_file(input_file, f'{dir_name}/kejilion.sh', lang_code)
        EOF
    
    - name: Run translation
      run: python translate.py
    
    - name: Check for changes
      id: check_changes
      run: |
        git add .
        git diff --staged --quiet || echo "has_changes=true" >> $GITHUB_OUTPUT
    
    - name: Commit and push changes
      if: steps.check_changes.outputs.has_changes == 'true'
      run: |
        git config --local user.email "action@github.com"
        git config --local user.name "GitHub Action"
        git commit -m "🌐 Weekly translation update - $(date +'%Y-%m-%d %H:%M:%S')"
        git push
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

    - name: Create summary
      if: always()
      run: |
        echo "## Translation Summary 📊" >> $GITHUB_STEP_SUMMARY
        echo "| Language | Status |" >> $GITHUB_STEP_SUMMARY
        echo "|----------|--------|" >> $GITHUB_STEP_SUMMARY
        for dir in en tw kr jp; do
          [ -f "$dir/kejilion.sh" ] && status="✅ Success" || status="❌ Failed"
          echo "| $dir | $status |" >> $GITHUB_STEP_SUMMARY
        done