name: Build and Test Flask App

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

jobs:
  build:
    runs-on: ubuntu-latest
    
    steps:
    - uses: actions/checkout@v4
    
    - name: Set up Python via apt
      run: |
        apt update
        apt install -y python3 python3-pip python3-venv python3-dev python3-full
            
    - name: Create and activate virtual environment
      run: |
        python3 -m venv venv

        . venv/bin/activate
        pip install --upgrade pip

        echo "VIRTUAL_ENV=$PWD/venv" >> $GITHUB_ENV
        echo "$PWD/venv/bin" >> $GITHUB_PATH
    
    - name: Install dependencies
      run: |
        if [ -f dependencies.txt ]; then
          pip install --no-cache-dir -r dependencies.txt
        else
          echo "dependencies.txt not found, installing Flask only"
          pip install flask
        fi
        pip list

    - name: Debug build - check imports
      run: |
        export FLASK_APP=app.py
        export FLASK_ENV=development
        flask run --host 0.0.0.0 --debug &
    
    - name: Wait for Flask app to start
      run: |
        echo "Waiting for Flask app to start..."
        for i in {1..10}; do
          if curl -f http://localhost:80/health 2>/dev/null; then
            echo "✅ Flask app is running"
            exit 0
          fi
          echo "Attempt $i: Flask app not ready yet..."
          sleep 2
        done
        echo "❌ Flask app failed to start"
        exit 1
    
    - name: Install test dependencies
      run: |
        . venv/bin/activate
        pip install requests pytest pytest-cov
    
    - name: Run API tests with coverage
      run: |
        . venv/bin/activate
        echo "Running API tests..."
        python test_api.py
        echo "✅ API tests completed"
    
    - name: Run additional pytest tests (if exist)
      run: |
        . venv/bin/activate
        if [ -d tests ] && [ "$(ls -A tests)" ]; then
          pytest tests/ -v --tb=short
        else
          echo "No pytest tests found, skipping"
        fi
    
    - name: Install release dependencies
      run: |
        . venv/bin/activate
        pip install gunicorn
    
    - name: Release build (simulated)
      run: |
        . venv/bin/activate
        gunicorn --check-config app:app
        echo "✅ Gunicorn configuration is valid"
    
    - name: Build Docker image
      run: |
        if [ -f Dockerfile ]; then
          echo "🐳 Building Docker image..."
          docker build -t PVH:${{ github.sha }} -t PVH:latest .
          docker images | grep PVH
          echo "✅ Docker image built successfully"
          
          # Проверяем, что образ создался
          docker run --rm PVH:latest python -c "import sys; print('Python version:', sys.version)" || true
        fi
    
    - name: Test Docker image
      run: |
        echo "Testing Docker image..."
        docker run -d -p 5001:5000 --name flask-test-container flask-app:latest
        sleep 5
        curl -f http://localhost:5001/health || (docker logs flask-test-container && exit 1)
        docker stop flask-test-container
        docker rm flask-test-container
        echo "✅ Docker image test passed"
    
    - name: Stop Flask app
      if: always()
      run: |
        pkill -f "flask run" || pkill -f "python app.py" || true
    
    - name: Cleanup Docker
      if: always()
      run: |
        docker system prune -f || true