name: Build Container
run-name: ${{ gitea.actor }} is pushing
on: [push]

env:
  REGISTRY: gitea.haschek.at
  IMAGE_NAME: ${{ gitea.repository }}

jobs:
  docker:
    runs-on: ubuntu-latest
    steps:
      - run: echo "🎉 Building ${{ gitea.repository }} because of a ${{ gitea.event_name }} event."

      - name: Checkout
        uses: actions/checkout@v2

      - name: Normalize image name to lowercase
        run: |
          echo "IMAGE_NAME_LC=${IMAGE_NAME,,}" >> "$GITHUB_ENV"
        env:
          IMAGE_NAME: ${{ env.IMAGE_NAME }}

      - name: Prepare
        id: prep
        run: |
          DOCKER_IMAGE="${{ env.REGISTRY }}/${{ env.IMAGE_NAME_LC }}"
          VERSION=latest
          SHORTREF=${GITHUB_SHA::8}

          TAGS="${DOCKER_IMAGE}:latest"

          # Set output parameters.
          echo ::set-output name=tags::${TAGS}
          echo ::set-output name=docker_image::${DOCKER_IMAGE}

      - name: Set up QEMU
        uses: docker/setup-qemu-action@master
        with:
          platforms: all

      - name: Set up Docker Buildx
        id: buildx
        uses: docker/setup-buildx-action@v3

      - name: Log in to the Container registry
        uses: docker/login-action@v2
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ gitea.actor }}
          password: ${{ secrets.BUILD_TOKEN}}

      - name: Build
        uses: docker/build-push-action@v3
        env:
          ACTIONS_RUNTIME_TOKEN: ''
        with:
          builder: ${{ steps.buildx.outputs.name }}
          context: .
          file: Dockerfile
          platforms: linux/amd64,linux/arm64
          push: true
          tags: ${{ steps.prep.outputs.tags }}
          cache-from: |
            type=registry,ref=registry.haschek.at/${{ env.IMAGE_NAME_LC }}:buildcache
          cache-to: |
            type=registry,ref=registry.haschek.at/${{ env.IMAGE_NAME_LC }}:buildcache,mode=max