lint.yml

name: Lint & Type Check

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

permissions:
  contents: write
  issues: write

jobs:
  lint:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v7

      - name: Set up Python 3.13
        uses: actions/setup-python@v7
        with:
          python-version: "3.13"

      - name: Install system dependencies
        run: |
          sudo apt-get update
          sudo apt-get install -y \
            libgirepository-2.0-dev \
            gir1.2-gtk-4.0 \
            libgtk-4-dev \
            libmpv-dev \
            python3-gi \
            python3-gi-cairo \
            python3-cairo \
            gobject-introspection

      - name: Install Python dependencies
        run: |
          pip install --upgrade pip
          pip install ruff mypy

      - name: Run ruff check
        id: ruff_check
        run: ruff check src/
        continue-on-error: true

      - name: Run ruff format check
        id: ruff_format
        run: ruff format --check src/
        continue-on-error: true

      - name: Run mypy
        id: mypy
        run: mypy src/
        continue-on-error: true

      - name: Check results
        if: steps.ruff_check.outcome == 'success' && steps.ruff_format.outcome == 'success' && steps.mypy.outcome == 'success'
        run: echo "All checks passed!"

      - name: Attempt auto-fix
        if: steps.ruff_check.outcome == 'failure' || steps.ruff_format.outcome == 'failure'
        id: autofix
        run: |
          ruff check --fix src/ || true
          ruff format src/

      - name: Re-check after auto-fix
        if: steps.autofix.outcome == 'success'
        id: recheck
        run: |
          ruff check src/
          ruff format --check src/
        continue-on-error: true

      - name: Commit auto-fixes
        if: github.event_name == 'push' && steps.recheck.outcome == 'success' && (steps.ruff_check.outcome == 'failure' || steps.ruff_format.outcome == 'failure')
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add -A
          git diff --cached --quiet || git commit -m "Auto-fix lint errors"
          git push

      - name: Collect errors and create issue
        if: github.event_name == 'push' && (steps.ruff_check.outcome == 'failure' || steps.ruff_format.outcome == 'failure' || steps.mypy.outcome == 'failure') && (steps.recheck.outcome != 'success' || steps.mypy.outcome == 'failure')
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          SHORT_SHA=$(git rev-parse --short HEAD)
          BRANCH=${GITHUB_REF_NAME}
          BODY="## Lint/type errors on \`${BRANCH}\` (\`${SHORT_SHA}\`)\n\n"

          if [ "${{ steps.ruff_check.outcome }}" = "failure" ]; then
            RUFF_OUT=$(ruff check src/ 2>&1 || true)
            BODY="${BODY}### ruff check\n\`\`\`\n${RUFF_OUT}\n\`\`\`\n\n"
          fi

          if [ "${{ steps.ruff_format.outcome }}" = "failure" ]; then
            FMT_OUT=$(ruff format --check src/ 2>&1 || true)
            BODY="${BODY}### ruff format\n\`\`\`\n${FMT_OUT}\n\`\`\`\n\n"
          fi

          if [ "${{ steps.mypy.outcome }}" = "failure" ]; then
            MYPY_OUT=$(mypy src/ 2>&1 || true)
            BODY="${BODY}### mypy\n\`\`\`\n${MYPY_OUT}\n\`\`\`\n\n"
          fi

          gh label create lint --color "d73a4a" --description "Lint/type errors" 2>/dev/null || true
          printf "%b" "$BODY" | gh issue create \
            --title "Lint/type errors on ${BRANCH} (${SHORT_SHA})" \
            --label lint \
            --body-file -

      - name: Fail if checks did not pass
        if: steps.ruff_check.outcome == 'failure' || steps.ruff_format.outcome == 'failure' || steps.mypy.outcome == 'failure'
        run: exit 1