name: Docker build on main branch

on:
  push:
    branches:
      - main

env:
  DOCKER_REGISTRY: ghcr.io
  DOCKER_IMAGE: vojtechmares/backoffice

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v3
        with:
          ref: ${{ github.ref }}

      # Setup Docker
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v2

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2

      - name: Docker login
        uses: docker/login-action@v2
        with:
          registry: ${{ env.DOCKER_REGISTRY }}
          # Use repository secrets for username and password, not organization secrets
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Docker meta
        id: docker_meta
        uses: docker/metadata-action@v4
        with:
          tags: |
            type=schedule
            type=ref,event=branch
            type=ref,event=tag
            type=ref,event=pr
            type=sha,format=long
            type=raw,value=${{ github.ref_name }}-${{ github.sha }}
            type=raw,value=latest,enable=${{ github.ref == format('refs/heads/{0}', 'main') }}
          images: |
            ${{ env.DOCKER_REGISTRY }}/${{ env.DOCKER_IMAGE }}

      - name: Build and push
        uses: docker/build-push-action@v4
        with:
          pull: true
          push: true
          tags: ${{ steps.docker_meta.outputs.tags }}
          labels: ${{ steps.docker_meta.outputs.labels }}
          # platforms: linux/amd64,linux/arm64,linux/arm/v7
          cache-from: type=registry,ref=${{ env.DOCKER_REGISTRY }}/${{ env.DOCKER_IMAGE }}:latest