name: CI/CD Pipeline

on:
  push:
    branches: [ main, dev, feature/* ]
  pull_request:
    branches: [ main, dev ]

jobs:
  # ===== TESTING PHASE =====
  test:
    runs-on: ubuntu-latest
    services:
      redis:
        image: redis:7-alpine
        ports:
          - 6379:6379
        options: >-
          --health-cmd "redis-cli ping"
          --health-interval 10s
          --health-timeout 5s
          --health-retries 5

    steps:
    - name: Checkout code
      uses: actions/checkout@v3

    - name: Setup Python
      uses: actions/setup-python@v4
      with:
        python-version: "3.13"

    - name: Install uv
      uses: astral-sh/setup-uv@v1
      with:
        version: "1.0.0"

    - name: Cache dependencies
      uses: actions/cache@v3
      with:
        path: |
          .venv
          .uv_cache
        key: ${{ runner.os }}-uv-3.13-${{ hashFiles('**/uv.lock') }}
        restore-keys: ${{ runner.os }}-uv-3.13-

    - name: Install dependencies
      run: |
        uv sync --group dev
        cd panel && npm ci && cd ..

    - name: Setup test database
      run: |
        touch database.db
        uv run python -c "
        from orm.base import Base
        from services.db import get_engine
        engine = get_engine()
        Base.metadata.create_all(engine)
        print('Test database initialized')
        "

    - name: Start servers
      run: |
        chmod +x scripts/ci-server.py
        timeout 300 python scripts/ci-server.py &
        echo $! > ci-server.pid
        
        echo "Waiting for servers..."
        timeout 120 bash -c '
          while ! (curl -f http://localhost:8000/ > /dev/null 2>&1 && \
                  curl -f http://localhost:3000/ > /dev/null 2>&1); do
            sleep 2
          done
          echo "Servers ready!"
        '

    - name: Run tests
      run: |
        for test_type in "not e2e" "integration" "e2e" "browser"; do
          echo "Running $test_type tests..."
          uv run pytest tests/ -m "$test_type" -v --tb=short || \
            if [ "$test_type" = "browser" ]; then echo "Browser tests failed (expected)"; else exit 1; fi
        done

    - name: Generate coverage
      run: |
        uv run pytest tests/ --cov=. --cov-report=xml --cov-report=html

    - name: Upload coverage
      uses: codecov/codecov-action@v3
      with:
        file: ./coverage.xml
        fail_ci_if_error: false

    - name: Cleanup
      if: always()
      run: |
        [ -f ci-server.pid ] && kill $(cat ci-server.pid) 2>/dev/null || true
        pkill -f "python dev.py|npm run dev|vite|ci-server.py" || true
        rm -f backend.pid frontend.pid ci-server.pid

  # ===== CODE QUALITY PHASE =====
  quality:
    runs-on: ubuntu-latest
    steps:
    - name: Checkout code
      uses: actions/checkout@v3

    - name: Setup Python
      uses: actions/setup-python@v4
      with:
        python-version: "3.13"

    - name: Install uv
      uses: astral-sh/setup-uv@v1
      with:
        version: "1.0.0"

    - name: Install dependencies
      run: |
        uv sync --group lint
        uv sync --group dev

    - name: Run quality checks
      run: |
        uv run ruff check .
        uv run mypy . --strict

  # ===== DEPLOYMENT PHASE =====
  deploy:
    runs-on: ubuntu-latest
    needs: [test, quality]
    if: github.ref == 'refs/heads/main' || github.ref == 'refs/heads/dev'
    environment: production
    
    steps:
    - name: Checkout code
      uses: actions/checkout@v3
      with:
        fetch-depth: 0

    - name: Setup SSH
      uses: webfactory/ssh-agent@v0.8.0
      with:
        ssh-private-key: ${{ secrets.SSH_PRIVATE_KEY }}

    - name: Deploy
      env:
        HOST_KEY: ${{ secrets.HOST_KEY }}
        TARGET: ${{ github.ref == 'refs/heads/main' && 'discoursio-api' || 'discoursio-api-staging' }}
        ENV: ${{ github.ref == 'refs/heads/main' && 'PRODUCTION' || 'STAGING' }}
      run: |
        echo "🚀 Deploying to $ENV..."
        mkdir -p ~/.ssh
        echo "$HOST_KEY" > ~/.ssh/known_hosts
        chmod 600 ~/.ssh/known_hosts
        
        git remote add dokku dokku@v2.discours.io:$TARGET
        git push dokku HEAD:main -f
        
        echo "✅ $ENV deployment completed!"

  # ===== SUMMARY =====
  summary:
    runs-on: ubuntu-latest
    needs: [test, quality, deploy]
    if: always()
    steps:
    - name: Pipeline Summary
      run: |
        echo "## 🎯 CI/CD Pipeline Summary" >> $GITHUB_STEP_SUMMARY
        echo "" >> $GITHUB_STEP_SUMMARY
        echo "### 📊 Test Results: ${{ needs.test.result }}" >> $GITHUB_STEP_SUMMARY
        echo "### 🔍 Code Quality: ${{ needs.quality.result }}" >> $GITHUB_STEP_SUMMARY
        echo "### 🚀 Deployment: ${{ needs.deploy.result || 'skipped' }}" >> $GITHUB_STEP_SUMMARY
        echo "### 📈 Coverage: Generated (XML + HTML)" >> $GITHUB_STEP_SUMMARY