name: Build and Publish Docker Image

on:
  push:
    tags:
      - 'v*'

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

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

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

      - 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)
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=semver,pattern={{major}}
            type=raw,value=latest,enable=${{ !contains(github.ref_name, 'alpha') }}
          labels: |
            org.opencontainers.image.title=Windmill Git Sync
            org.opencontainers.image.description=Containerized service for synchronizing Windmill workspaces to Git repositories
            org.opencontainers.image.vendor=${{ github.repository_owner }}

      - name: Build and push Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max

      - name: Create draft release
        if: ${{ !contains(github.ref_name, 'alpha') }}
        uses: softprops/action-gh-release@v1
        with:
          draft: true
          generate_release_notes: true
          body: |
            ## Docker Image

            Pull this release:
            ```bash
            docker pull ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ github.ref_name }}
            ```

            Or use the latest tag:
            ```bash
            docker pull ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest
            ```