name: Docker Ubuntu 22.04 image

on:
  workflow_dispatch:
  push:
    branches:
      - 'master'

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

jobs:
  build-and-push:
    runs-on: ubuntu-22.04
    steps:
      - name: Check out repository
        uses: actions/checkout@v3
        with:
          submodules: 'recursive'

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

      - name: Login to GitHub Container Registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and export to Docker
        uses: docker/build-push-action@v6
        with:
          load: true
          context: ./
          tags: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:test

      - name: Test
        run: |
          docker run --rm -e "TEST=1" ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:test

      - name: Get next tag
        id: tag
        run: |
          git fetch --all --tags
          git tag -l
          NEW_TAG=v$(date +'%Y.%m')
          FOUND=$(git tag -l | grep $NEW_TAG | wc -l)
          if [ $FOUND -eq 0 ]; then
            echo "TAG=$NEW_TAG" >> $GITHUB_OUTPUT
          else
            echo "TAG=$NEW_TAG-$FOUND" >> $GITHUB_OUTPUT
          fi

      - name: Build and push
        id: docker_build
        uses: docker/build-push-action@v6
        with:
          platforms: linux/amd64,linux/arm64
          push: true
          context: ./
          tags: |
            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest
            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ steps.tag.outputs.TAG }}