name: CI/CD Pipeline

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

jobs:
  test:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        python-version: [3.10]

    steps:
    - uses: actions/checkout@v3

    - name: Set up Python ${{ matrix.python-version }}
      uses: actions/setup-python@v4
      with:
        python-version: ${{ matrix.python-version }}

    - name: Install Backend Dependencies
      run: |
        cd backend
        pip install -r requirements.txt

    - name: Run Backend Tests
      run: |
        cd backend
        pytest tests/ --verbose --cov=.

    - name: Set up Node.js
      uses: actions/setup-node@v3
      with:
        node-version: '18'
        cache: 'npm'

    - name: Install Frontend Dependencies
      run: |
        cd frontend
        npm ci

    - name: Run Frontend Tests & Build
      run: |
        cd frontend
        npm test -- --watchAll=false
        npm run build

  lint:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v3

    - name: Backend Lint
      run: |
        cd backend
        pip install black flake8
        black --check .
        flake8 .

    - name: Frontend Lint
      run: |
        cd frontend
        npm install --save-dev eslint
        npm run lint

  deploy:
    needs: [test, lint]
    if: github.ref == 'refs/heads/main' && github.event_name == 'push'
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v3

    - name: Deploy to Server (Placeholder)
      run: echo "Deploy script here - e.g., rsync to server or trigger webhook"

    - name: Notify on Success
      run: echo "Pipeline passed! Ready for deployment."