---
name: push workflow

on:
  push:
    branches-ignore:
      - dependabot/**
  pull_request:
    types: [labeled]

permissions:
  contents: read

jobs:
  build_and_push:
    # this basically means do not execute it as dependabot unless it is labeled as ready-for-ci
    # because automated processes and pr from forks are dangerous, therefore those prs won't have access to secrets, labeling them acts like allow-listing them
    # more details here https://docs.github.com/en/rest/dependabot/secrets?apiVersion=2022-11-28
    # even when re-running an action manually the actor stays the same as of mid 2022, details here https://github.blog/changelog/2022-07-19-differentiating-triggering-actor-from-executing-actor/

    #https://github.com/actions/runner/issues/1173#issuecomment-1354501147 when false equals true, you have to come up with something ...
    if: |
      (github.actor == 'dependabot[bot]' &&
      contains(github.event.issue.labels.*.name, 'ready-for-ci') == 'true') ||
      github.actor != 'dependabot[bot]'
    runs-on: ubuntu-latest
    needs:
      - branch_meta
    permissions:
      packages: write
    steps:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - name: Login to registry
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Docker meta Service Name
        id: docker_meta_img
        uses: docker/metadata-action@v4
        with:
          images: ghcr.io/${{ github.repository }}
          tags: |
            type=ref,event=branch,enable=false,priority=600
            type=sha,enable=true,priority=600,prefix=
      - name: test image exists
        run: |
          mkdir -p ~/.docker 
          echo '{"experimental": "enabled"}' >> ~/.docker/config.json
          echo "IMAGE_EXISTS=$(docker manifest inspect ghcr.io/${{ github.repository }}:${{ needs.branch_meta.outputs.sha }} > /dev/null && echo 1 || echo 0)" >> $GITHUB_ENV
      - name: Set up Docker Buildx
        if: ${{ env.IMAGE_EXISTS == 0 }}
        uses: docker/setup-buildx-action@v2

      - name: Build and push ${{ github.repository }}
        if: ${{ env.IMAGE_EXISTS == 0 }}
        uses: docker/build-push-action@v4
        with:
          context: .
          file: ./Dockerfile
          platforms: linux/amd64
          push: true
          tags: ghcr.io/${{ github.repository }}:${{ needs.branch_meta.outputs.sha }}
          labels: ${{ steps.docker_meta_img.outputs.labels }}