name: Readiness Gate

on:
  push:
    branches: [main, develop]
  pull_request:
    branches: [main, develop]
  workflow_dispatch:

jobs:
  # ===========================================
  # BACKEND QUALITY GATES
  # ===========================================
  backend-lint:
    name: Backend Lint & Type Check
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6
        with:
          submodules: recursive

      - name: Install system dependencies
        run: sudo apt-get update && sudo apt-get install -y libev-dev

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

      - name: Install dev dependencies
        run: |
          python -m pip install --upgrade pip
          pip install ruff mypy pytest

      - name: Run ruff linting
        run: ruff check src/swingmusic --output-format=github

      - name: Run ruff format check
        run: ruff format --check src/swingmusic

  backend-tests:
    name: Backend Tests
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6
        with:
          submodules: recursive

      - name: Install system dependencies
        run: sudo apt-get update && sudo apt-get install -y libev-dev

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

      - name: Install dependencies
        run: |
          python -m pip install --upgrade pip
          pip install -e .
          pip install pytest pytest-cov

      - name: Run tests with coverage
        run: python -m pytest tests/ -v --tb=short --cov=src/swingmusic --cov-report=xml --cov-report=term-missing

      - name: Upload coverage
        uses: codecov/codecov-action@v5
        with:
          files: ./coverage.xml
          fail_ci_if_error: false

  backend-startup:
    name: Backend Startup Check
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6
        with:
          submodules: recursive

      - name: Install system dependencies
        run: sudo apt-get update && sudo apt-get install -y libev-dev

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

      - name: Install dependencies
        run: |
          python -m pip install --upgrade pip
          pip install -e .

      - name: Check backend startup
        run: python -c "from swingmusic.app_builder import build; app = build(); print('Backend OK')"

  mobile:
    name: Mobile (Flutter)
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: swingmusic_mobile

    steps:
      - uses: actions/checkout@v6
        with:
          submodules: recursive

      - name: Set up Flutter
        uses: subosito/flutter-action@v2
        with:
          flutter-version: '3.24.0'
          channel: 'stable'

      - name: Get dependencies
        run: flutter pub get

      - name: Analyze
        run: flutter analyze --no-fatal-infos

      - name: Build APK (debug)
        run: flutter build apk --debug --target-platform android-arm64

  web:
    name: Web Client
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: swingmusic-webclient

    steps:
      - uses: actions/checkout@v6
        with:
          submodules: recursive

      - name: Set up Node.js
        uses: actions/setup-node@v6
        with:
          node-version: '20'
          cache: 'npm'
          cache-dependency-path: swingmusic-webclient/package-lock.json

      - name: Install dependencies
        run: npm ci || npm install

      - name: TypeScript type check
        run: npx tsc --noEmit

      - name: Lint
        run: npm run lint

      - name: Build
        run: npm run build

  desktop:
    name: Desktop Client
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: swingmusic-desktop

    steps:
      - uses: actions/checkout@v6
        with:
          submodules: recursive

      - name: Set up Node.js
        uses: actions/setup-node@v6
        with:
          node-version: '20'
          cache: 'npm'
          cache-dependency-path: swingmusic-desktop/package-lock.json

      - name: Install dependencies
        run: npm ci || npm install

      - name: Build check
        run: npm run build

  readiness-gate:
    name: Readiness Gate Summary
    runs-on: ubuntu-latest
    needs: [backend-lint, backend-tests, backend-startup, mobile, web, desktop]
    if: always()

    steps:
      - uses: actions/checkout@v6
        with:
          submodules: recursive

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

      - name: Run readiness gate script
        run: |
          chmod +x scripts/readiness_gate.sh
          ./scripts/readiness_gate.sh

      - name: Check overall status
        run: |
          if [ "${{ needs.backend-lint.result }}" == "success" ] && \
             [ "${{ needs.backend-tests.result }}" == "success" ] && \
             [ "${{ needs.backend-startup.result }}" == "success" ] && \
             [ "${{ needs.mobile.result }}" == "success" ] && \
             [ "${{ needs.web.result }}" == "success" ] && \
             [ "${{ needs.desktop.result }}" == "success" ]; then
            echo "✅ All platform checks passed"
            exit 0
          else
            echo "❌ Some platform checks failed"
            exit 1
          fi