name: Build and Push Backend Docker Image

on:
  push:
    branches:
      - master
    tags:
      - 'v*.*.*'
    paths:
      - 'media_manager/**'
      - 'alembic/**'
      - 'alembic.ini'
      - 'Dockerfile'
      - 'pyproject.toml'
      - 'uv.lock'
      - '.github/workflows/build-push-backend.yml'
      - 'tests/**'
  pull_request:
    paths:
      - 'media_manager/**'
      - 'alembic/**'
      - 'alembic.ini'
      - 'Dockerfile'
      - 'pyproject.toml'
      - 'uv.lock'
      - '.github/workflows/build-push-backend.yml'
      - 'tests/**'

  workflow_dispatch:

jobs:
  lint-code:
    name: Lint Python Code
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4
      - uses: astral-sh/ruff-action@v3
        with:
          src: "./media_manager"

  run-tests:
    needs: lint-code
    name: Run Python Tests
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

      - name: Install uv
        uses: astral-sh/setup-uv@v5

      - name: Install the project
        run: uv sync --locked --all-extras --dev

      - name: Run tests
        run: uv run pytest tests

  build-and-push:
    needs: run-tests
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

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

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

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

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ghcr.io/${{ github.repository_owner }}/${{ github.event.repository.name }}/backend
          tags: |
            type=raw,value=latest,enable=${{ github.ref == format('refs/heads/{0}', 'master') }}
            type=ref,event=tag
            type=ref,event=branch
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=semver,pattern={{major}}
            type=sha

      - name: Extract version
        id: version
        run: |
          if [[ "${{ github.ref }}" == refs/tags/* ]]; then
            VERSION=${GITHUB_REF#refs/tags/}
          else
            VERSION="dev-${GITHUB_SHA::7}"
          fi
          echo "version=$VERSION" >> $GITHUB_OUTPUT

      - name: Build and push Docker image
        uses: docker/build-push-action@v6
        with:
          context: .
          file: ./Dockerfile
          platforms: linux/amd64,linux/arm64
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          build-args: |
            VERSION=${{ steps.version.outputs.version }}