name: BIAF-offASR CI/CD Pipeline

on:
  push:
    branches: [main]
    paths-ignore:
      - '**.md'
      - 'docs/**'
      - 'diagram/**'
  pull_request:
    branches: [main]
    paths-ignore:
      - '**.md'
      - 'docs/**'
      - 'diagram/**'

env:
  CI_MODE: "true"

jobs:
  backend-tests:
    if: github.event_name != 'pull_request'
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      
      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: "3.10"
          
      - name: Install FFmpeg
        run: |
          sudo apt update
          sudo apt install -y ffmpeg
          
      - name: Cache pip dependencies
        uses: actions/cache@v4
        with:
          path: ~/.cache/pip
          key: ${{ runner.os }}-pip-${{ hashFiles('backend/requirements.txt') }}
          
      - name: Install backend dependencies
        run: |
          python -m pip install --upgrade pip
          pip install -r backend/requirements.txt
          
      - name: Run backend unit tests
        run: |
          pytest testcase/backend/ -v
          
      - name: Run backend pipeline test (Mocked)
        run: |
          python backend/test_pipeline.py

  frontend-tests:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      
      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '22'
          cache: 'npm'
          cache-dependency-path: frontend/package-lock.json
          
      - name: Install frontend dependencies
        working-directory: frontend
        run: npm ci
        
      - name: Run frontend linting
        working-directory: frontend
        run: npm run lint
        
      - name: Build frontend
        working-directory: frontend
        run: npm run build

  e2e-tests:
    needs: [backend-tests, frontend-tests]
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      
      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: "3.10"
          
      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '22'
          
      - name: Install dependencies
        run: |
          sudo apt update
          sudo apt install -y ffmpeg
          pip install -r backend/requirements.txt
          npm ci --prefix frontend
          
      - name: Install Playwright browsers
        run: npx playwright install --with-deps chromium
        
      - name: Start backend server
        run: |
          cd backend
          nohup python app.py > backend.log 2>&1 &
          echo $! > ../backend.pid
          sleep 5
          
      - name: Start frontend server
        run: |
          cd frontend
          nohup npm run dev > frontend.log 2>&1 &
          echo $! > ../frontend.pid
          sleep 10
          
      - name: Run E2E tests
        run: |
          pytest testcase/e2e/test_app_flow.py -v
          
      - name: Stop servers
        if: always()
        run: |
          [ -f backend.pid ] && kill $(cat backend.pid) || true
          [ -f frontend.pid ] && kill $(cat frontend.pid) || true
          
      - name: Upload logs on failure
        if: failure()
        uses: actions/upload-artifact@v4
        with:
          name: server-logs
          path: |
            backend/backend.log
            frontend/frontend.log

  code-quality:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      
      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: "3.10"
          
      - name: Run backend linting
        run: |
          pip install flake8
          flake8 backend/ --count --select=E9,F63,F7,F82 --show-source --statistics
          
      - name: Run Python complexity analysis
        run: |
          pip install radon
          radon cc backend/ -a -s
          radon mi backend/ -s

  # Docker build (without pushing for now as secrets aren't set)
  docker-build:
    needs: [backend-tests, frontend-tests]
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
        
      - name: Build Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          push: false
          tags: biaf-offasr:latest
          cache-from: type=gha
          cache-to: type=gha,mode=max