name: CI/CD Pipeline

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

jobs:
  test-and-build:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

    steps:
    - name: Checkout repository
      uses: actions/checkout@v4

    - name: Set up Python 3.10
      uses: actions/setup-python@v5
      with:
        python-version: "3.10"
        cache: "pip"

    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install -r requirements.txt

    - name: Run Automated Tests (Pytest)
      run: |
        export PYTHONPATH=$PYTHONPATH:.
        pytest tests/ --doctest-modules --junitxml=junit/test-results.xml --cov=src --cov-report=xml --cov-report=html

    - name: Log in to GitHub Container Registry
      if: github.event_name != 'pull_request'
      uses: docker/login-action@v3
      with:
        registry: ghcr.io
        username: ${{ github.actor }}
        password: ${{ secrets.GITHUB_TOKEN }}

    - name: Extract metadata (tags, labels) for Docker
      if: github.event_name != 'pull_request'
      id: meta
      uses: docker/metadata-action@v5
      with:
        images: ghcr.io/${{ github.repository }}

    - name: Build and push Docker image
      uses: docker/build-push-action@v5
      with:
        context: .
        push: ${{ github.event_name != 'pull_request' }}
        tags: ${{ steps.meta.outputs.tags }}
        labels: ${{ steps.meta.outputs.labels }}