name: Container Image

on:
  pull_request:
    branches:
      - main
  push:
    branches:
      - main
    tags:
      - 'v*'
  workflow_dispatch: {}

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

jobs:
  build:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      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 GHCR
        if: "${{ github.event_name != 'pull_request' }}"
        uses: docker/login-action@v3
        with:
          registry: "${{ env.REGISTRY }}"
          username: "${{ github.actor }}"
          password: "${{ secrets.GITHUB_TOKEN }}"

      - name: Extract image metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: "${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}"
          tags: |
            type=ref,event=branch
            type=ref,event=tag
            type=sha
            type=raw,value=latest,enable=${{ github.ref == 'refs/heads/main' }}

      - name: Build and publish image
        uses: docker/build-push-action@v6
        with:
          context: .
          file: ./Dockerfile
          platforms: linux/amd64
          push: "${{ github.event_name != 'pull_request' }}"
          tags: "${{ steps.meta.outputs.tags }}"
          labels: "${{ steps.meta.outputs.labels }}"
          cache-from: type=gha
          cache-to: type=gha,mode=max