name: dir2md Blueprint
on:
  pull_request:
    types: [opened, synchronize, reopened]
  workflow_dispatch:

jobs:
  build-blueprint:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-python@v5
        with:
          python-version: '3.11'
      - name: Install dir2md
        run: |
          python -m pip install --upgrade pip
          pip install .
      - name: Generate blueprint
        id: gen
        run: |
          dir2md . --capsule --emit-manifest --stats -o PROJECT_BLUEPRINT.md || true
          TOKENS=$(jq .stats.est_tokens_prompt PROJECT_BLUEPRINT.manifest.json)
          echo "tokens=$TOKENS" >> $GITHUB_OUTPUT
      - name: Upload artifact
        uses: actions/upload-artifact@v4
        with:
          name: dir2md-blueprint
          path: |
            PROJECT_BLUEPRINT.md
            PROJECT_BLUEPRINT.manifest.json
            PROJECT_BLUEPRINT.capsule.zip
      - name: Comment PR
        if: github.event_name == 'pull_request'
        uses: actions/github-script@v7
        with:
          script: |
            const tokens = '${{ steps.gen.outputs.tokens }}';
            const body = [
              '## 📦 dir2md Blueprint',
              `- Estimated prompt tokens: **${tokens}**`,
              '- Artifacts: _see workflow run → Artifacts_',
              '',
              'Run locally:',
              '```bash',
              'pip install .',
              'dir2md .',
              '```'
            ].join('\n');
            github.rest.issues.createComment({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: context.issue.number,
              body
            });