name: Verify FoJin Links

on:
  schedule:
    # Run every Monday at 03:00 UTC
    - cron: '0 3 * * 1'
  workflow_dispatch:  # Allow manual triggering

jobs:
  verify:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

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

      - name: Install dependencies
        run: |
          python -m pip install --upgrade pip
          pip install requests pypinyin pyyaml

      - name: Run verify_sources.py (dry run)
        id: verify
        run: |
          cd ${{ github.workspace }}
          python3 tools/verify_sources.py 2>&1 | tee verify_output.txt
          # Extract key stats for the issue body
          FAILED=$(grep -oP "Not found in FoJin:\s*\K\d+" verify_output.txt || echo "0")
          UPDATES=$(grep -oP "URL replacements:\s*\K\d+" verify_output.txt || echo "0")
          echo "failed=$FAILED" >> $GITHUB_OUTPUT
          echo "updates=$UPDATES" >> $GITHUB_OUTPUT

      - name: Create issue if links need updating
        if: steps.verify.outputs.updates != '0' || steps.verify.outputs.failed != '0'
        uses: actions/github-script@v7
        with:
          script: |
            const fs = require('fs');
            const output = fs.readFileSync('verify_output.txt', 'utf8');
            const failed = '${{ steps.verify.outputs.failed }}';
            const updates = '${{ steps.verify.outputs.updates }}';

            await github.rest.issues.create({
              owner: context.repo.owner,
              repo: context.repo.repo,
              title: `[Weekly] FoJin links need update — ${updates} URLs, ${failed} missing`,
              body: `Automated weekly link verification found changes.\n\n` +
                    `- **URL replacements needed:** ${updates}\n` +
                    `- **CBETA IDs not found in FoJin:** ${failed}\n\n` +
                    `## Full output\n\n\`\`\`\n${output}\n\`\`\`\n\n` +
                    `Run \`python3 tools/verify_sources.py --fix\` locally and commit the changes.`,
              labels: ['maintenance', 'automated']
            });