name: Integration Tests

on:
  push:
    branches: [ main, develop ]
  pull_request:
    branches: [ main, develop ]
  schedule:
    # Run nightly at 2 AM UTC
    - cron: '0 2 * * *'

jobs:
  integration-tests:
    runs-on: ubuntu-latest

    strategy:
      matrix:
        python-version: ['3.8', '3.9', '3.10', '3.11']
      fail-fast: false

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

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

    - name: Cache pip dependencies
      uses: actions/cache@v3
      with:
        path: ~/.cache/pip
        key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements*.txt') }}
        restore-keys: |
          ${{ runner.os }}-pip-

    - name: Install system dependencies
      run: |
        sudo apt-get update
        sudo apt-get install -y \
          build-essential \
          cmake \
          libopencv-dev \
          python3-opencv \
          ffmpeg

    - name: Install Python dependencies
      run: |
        python -m pip install --upgrade pip
        pip install -r requirements_camera.txt
        pip install pytest pytest-cov pytest-timeout pytest-benchmark pytest-xdist
        pip install numpy scipy opencv-python

    - name: Install package
      run: |
        pip install -e .

    - name: Run integration tests
      run: |
        pytest tests/integration/ \
          -v \
          --cov=src \
          --cov-report=xml \
          --cov-report=html \
          --junitxml=test-results/junit.xml \
          --timeout=300

    - name: Upload coverage to Codecov
      uses: codecov/codecov-action@v3
      with:
        file: ./coverage.xml
        flags: integration
        name: codecov-integration-${{ matrix.python-version }}

    - name: Upload test results
      if: always()
      uses: actions/upload-artifact@v3
      with:
        name: test-results-${{ matrix.python-version }}
        path: test-results/

    - name: Upload coverage report
      if: always()
      uses: actions/upload-artifact@v3
      with:
        name: coverage-report-${{ matrix.python-version }}
        path: coverage_html/

  benchmark-tests:
    runs-on: ubuntu-latest
    needs: integration-tests

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

    - name: Set up Python
      uses: actions/setup-python@v4
      with:
        python-version: '3.10'

    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install -r requirements_camera.txt
        pip install pytest pytest-benchmark
        pip install -e .

    - name: Run benchmark tests
      run: |
        pytest tests/benchmarks/ \
          -v \
          --benchmark-only \
          --benchmark-json=benchmark-results.json

    - name: Upload benchmark results
      uses: actions/upload-artifact@v3
      with:
        name: benchmark-results
        path: benchmark-results.json

  stress-tests:
    runs-on: ubuntu-latest
    needs: integration-tests
    if: github.event_name == 'schedule' || contains(github.event.head_commit.message, '[stress-test]')

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

    - name: Set up Python
      uses: actions/setup-python@v4
      with:
        python-version: '3.10'

    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install -r requirements_camera.txt
        pip install pytest pytest-timeout
        pip install -e .

    - name: Run stress tests
      run: |
        pytest tests/integration/ \
          -v \
          -m stress \
          --timeout=600

    - name: Upload stress test results
      if: always()
      uses: actions/upload-artifact@v3
      with:
        name: stress-test-results
        path: test-results/