name: Docker

# This workflow uses actions that are not certified by GitHub.
# They are provided by a third-party and are governed by
# separate terms of service, privacy policy, and support
# documentation.

on:
    push:
        branches: ["main", "refactor/shadcn"]
        # Publish semver tags as releases.
        tags: ["v*.*.*"]
    pull_request:
        branches: ["main"]

env:
    # Use docker.io for Docker Hub if empty
    REGISTRY: ghcr.io
    # github.repository as <account>/<repo>
    IMAGE_NAME: ${{ github.repository }}

jobs:
    build:
        runs-on: ubuntu-latest
        permissions:
            contents: read
            packages: write
            # This is used to complete the identity challenge
            # with sigstore/fulcio when running outside of PRs.
            id-token: write

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

            - name: Setup QEMU
              uses: docker/setup-qemu-action@v3
              with:
                  platforms: all

            # Set up BuildKit Docker container builder to be able to build
            # multi-platform images and export cache
            # https://github.com/docker/setup-buildx-action
            - name: Set up Docker Buildx
              uses: docker/setup-buildx-action@v3 # v3.0.0

            # Login against a Docker registry except on PR
            # https://github.com/docker/login-action
            - name: Log into registry ${{ env.REGISTRY }}
              if: github.event_name != 'pull_request'
              uses: docker/login-action@v3 # v3.0.0
              with:
                  registry: ${{ env.REGISTRY }}
                  username: ${{ github.actor }}
                  password: ${{ secrets.GITHUB_TOKEN }}

            # Extract metadata (tags, labels) for Docker
            # https://github.com/docker/metadata-action
            - name: Extract Docker metadata
              id: meta
              uses: docker/metadata-action@v5 # v5.0.0
              with:
                  images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
                  tags: |
                      type=schedule
                      type=ref,event=branch
                      type=ref,event=tag
                      type=ref,event=pr
                      type=sha

            # Build and push Docker image with Buildx (don't push on PR)
            # https://github.com/docker/build-push-action
            - name: Build and push Docker image
              id: build-and-push
              uses: docker/build-push-action@v5 # v5.0.0
              with:
                  context: .
                  push: ${{ github.event_name != 'pull_request' }}
                  tags: ${{ steps.meta.outputs.tags }}
                  labels: ${{ steps.meta.outputs.labels }}
                  platforms: linux/amd64,linux/arm64
                  cache-from: type=gha
                  cache-to: type=gha,mode=max
                  provenance: mode=max
                  sbom: true
