name: Build and Push Docker image

on:
  push:
    branches:
      - main
    tags:
      - 'v*.*.*'
  workflow_dispatch:

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

    steps:
      - name: Checkout code
        uses: actions/checkout@v6

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

      - name: Lowercase repo name
        run: echo "REPO_LC=${GITHUB_REPOSITORY,,}" >> $GITHUB_ENV

      - name: Set up Docker tags
        id: meta
        run: |
          if [[ $GITHUB_REF == refs/tags/* ]]; then
            VERSION=${GITHUB_REF#refs/tags/}
            echo "DOCKER_TAGS=ghcr.io/${REPO_LC}:${VERSION},ghcr.io/${REPO_LC}:latest" >> $GITHUB_ENV
          else
            echo "DOCKER_TAGS=ghcr.io/${REPO_LC}:dev" >> $GITHUB_ENV
          fi

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

      - name: Build and push Docker image (multi arch)
        uses: docker/build-push-action@v6
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: true
          tags: ${{ env.DOCKER_TAGS }}