name: Translate Documentation to Chinese

on:
  push:
    branches:
      - main
      - development
    paths:
      - 'docs/**/*.md'
      - '!docs/zh-CN/**'
      - '!docs/archive/**'
  workflow_dispatch:
    inputs:
      files:
        description: 'Specific files to translate (comma-separated, or "all")'
        required: false
        default: 'changed'

jobs:
  detect-changes:
    runs-on: ubuntu-latest
    outputs:
      changed-files: ${{ steps.detect.outputs.files }}
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 2

      - name: Detect changed files
        id: detect
        run: |
          if [ "${{ github.event.inputs.files }}" = "all" ]; then
            # Translate all docs
            FILES=$(find docs -name "*.md" -not -path "docs/zh-CN/*" -not -path "docs/archive/*" | tr '\n' ',')
          elif [ "${{ github.event.inputs.files }}" != "" ] && [ "${{ github.event.inputs.files }}" != "changed" ]; then
            # Use provided files
            FILES="${{ github.event.inputs.files }}"
          else
            # Detect changed files
            FILES=$(git diff --name-only HEAD~1 HEAD | grep "^docs/" | grep -v "^docs/zh-CN/" | grep -v "^docs/archive/" | grep "\.md$" | tr '\n' ',')
          fi
          
          # Remove trailing comma
          FILES=$(echo "$FILES" | sed 's/,$//')
          
          echo "files=$FILES" >> $GITHUB_OUTPUT
          echo "Detected files: $FILES"

  translate:
    runs-on: ubuntu-latest
    needs: detect-changes
    if: needs.detect-changes.outputs.changed-files != ''
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: '3.11'

      - name: Install dependencies
        run: |
          pip install anthropic

      - name: Translate documents
        env:
          ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
        run: |
          IFS=',' read -ra FILES <<< "${{ needs.detect-changes.outputs.changed-files }}"
          for file in "${FILES[@]}"; do
            if [ -f "$file" ]; then
              echo "Translating: $file"
              python scripts/translate_doc.py "$file" --target-lang zh-CN || echo "Failed: $file"
            fi
          done

      - name: Check for changes
        id: git-check
        run: |
          git add docs/zh-CN/
          if git diff --cached --quiet; then
            echo "changed=false" >> $GITHUB_OUTPUT
          else
            echo "changed=true" >> $GITHUB_OUTPUT
          fi

      - name: Create Pull Request
        if: steps.git-check.outputs.changed == 'true'
        uses: peter-evans/create-pull-request@v6
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          commit-message: "[Auto] Chinese translation update"
          title: "🌐 [Auto] Chinese Documentation Translation Update"
          body: |
            ## 🇨🇳 中文文档翻译更新 / Chinese Documentation Translation Update

            This PR contains automated translations of updated documentation.
            
            ### 变更内容 / Changes
            ${{ needs.detect-changes.outputs.changed-files }}

            ### 审阅指南 / Review Guide
            - [ ] 技术术语准确 / Technical terms accurate
            - [ ] 链接正确指向中文版本 / Links point to Chinese versions
            - [ ] 代码示例保持原样 / Code examples preserved
            - [ ] 格式正确 / Formatting correct

            ### 如何审阅 / How to Review
            1. 查看文件列表 / Check the file list
            2. 阅读中文翻译 / Read the Chinese translation
            3. 在 PR 中提出修改建议 / Suggest changes in PR
            4. 确认后批准 / Approve when satisfied

            ### 相关 Issue
            - #260 - Chinese Translation
            
            ---
            
            *This PR was auto-generated by GitHub Actions*
          branch: auto-translate-zh-cn-${{ github.run_number }}
          delete-branch: true
          labels: translation, zh-CN, needs-review, automated

      - name: Update Issue #260
        if: steps.git-check.outputs.changed == 'true'
        uses: actions/github-script@v7
        with:
          script: |
            github.rest.issues.createComment({
              issue_number: 260,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: `🤖 **自动翻译更新 / Automated Translation Update**

            新的中文翻译已准备就绪，需要社区审阅：
            - PR: #${{ steps.create-pr.outputs.pull-request-number }}
            - 文件: ${{ needs.detect-changes.outputs.changed-files }}

            请志愿者帮忙审阅，谢谢！
            / Community review needed, thanks!`
            })