name: Update Contributors NOTICE

on:
  workflow_dispatch:
  schedule:
    # Run every Sunday at 00:00 UTC
    - cron: '0 0 * * 0'

permissions:
  contents: write
  pull-requests: write

jobs:
  update-notice:
    name: Update NOTICE with new contributors
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Fetch contributors
        id: contributors
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          # Fetch all contributors (excluding bots)
          gh api \
            --paginate \
            "repos/${{ github.repository }}/contributors" \
            --jq '.[] | select(.type != "Bot") | .login' > /tmp/contributors_raw.txt

          # Sort alphabetically and filter
          sort -f < /tmp/contributors_raw.txt > contributors.txt

          # Count contributors
          count=$(wc -l < contributors.txt | tr -d ' ')
          echo "count=$count" >> "$GITHUB_OUTPUT"

      - name: Generate new NOTICE file
        run: |
          cat > NOTICE << 'EOF'
          ZeroClaw
          Copyright 2025 ZeroClaw Labs

          This product includes software developed at ZeroClaw Labs (https://github.com/zeroclaw-labs).

          Contributors
          ============

          The following individuals have contributed to ZeroClaw:

          EOF

          # Append contributors in alphabetical order
          sed 's/^/- /' contributors.txt >> NOTICE

          # Add third-party dependencies section
          cat >> NOTICE << 'EOF'


          Third-Party Dependencies
          =========================

          This project uses the following third-party libraries and components,
          each licensed under their respective terms:

          See Cargo.lock for a complete list of dependencies and their licenses.
          EOF

      - name: Check if NOTICE changed
        id: check_diff
        run: |
          if git diff --quiet NOTICE; then
            echo "changed=false" >> "$GITHUB_OUTPUT"
          else
            echo "changed=true" >> "$GITHUB_OUTPUT"
          fi

      - name: Create Pull Request
        if: steps.check_diff.outputs.changed == 'true'
        env:
          GH_TOKEN: ${{ github.token }}
          COUNT: ${{ steps.contributors.outputs.count }}
        run: |
          branch_name="auto/update-notice-$(date +%Y%m%d)"

          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"

          git checkout -b "$branch_name"
          git add NOTICE
          git commit -m "chore(notice): update contributor list"
          git push origin "$branch_name"

          gh pr create \
            --title "chore(notice): update contributor list" \
            --body "Auto-generated update to NOTICE file with $COUNT contributors." \
            --label "chore" \
            --label "docs" \
            --draft || true

      - name: Summary
        run: |
          echo "## NOTICE Update Results" >> "$GITHUB_STEP_SUMMARY"
          echo "" >> "$GITHUB_STEP_SUMMARY"
          if [ "${{ steps.check_diff.outputs.changed }}" = "true" ]; then
            echo "✅ PR created to update NOTICE" >> "$GITHUB_STEP_SUMMARY"
          else
            echo "✓ NOTICE file is up to date" >> "$GITHUB_STEP_SUMMARY"
          fi
          echo "" >> "$GITHUB_STEP_SUMMARY"
          echo "**Contributors:** ${{ steps.contributors.outputs.count }}" >> "$GITHUB_STEP_SUMMARY"