name: Docker Build and Push

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

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  build-and-push:
    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: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            type=ref,event=branch
            type=ref,event=pr
            type=semver,pattern=v{{version}}
            type=semver,pattern=v{{major}}.{{minor}}
            type=semver,pattern=v{{major}}
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=semver,pattern={{major}}
            type=raw,value=latest,enable={{is_default_branch}}
          flavor: |
            latest=false

      - name: Determine version for build
        id: version
        run: |
          if [[ "${{ github.ref }}" == refs/tags/v* ]]; then
            # For tags, strip the 'v' prefix
            VERSION="${{ github.ref_name }}"
            VERSION="${VERSION#v}"
          else
            # For non-tags, use git commit hash with dirty flag
            VERSION=$(git describe --always --dirty)
          fi
          echo "version=git-${VERSION}" >> $GITHUB_OUTPUT
          echo "Building with version: git-${VERSION}"

      - name: Build and push Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          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 }}
          cache-from: type=gha
          cache-to: type=gha,mode=max