name: Docker

on:
  push:
    branches: [ "master" ]
    tags:
      - v*
  pull_request:
    branches: [ "master" ]
  release:
    types: [ "published" ]
  workflow_dispatch:

env:
  IMAGE_NAME: pg_back

jobs:
  test:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        pg_version: [13, 14, 15, 16, 17]

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Test Docker container
        uses: adambirds/docker-compose-action@v1.4.0
        env:
          PG_VERSION: ${{ matrix.pg_version }}
        with:
          compose-file: ./docker/compose.test.yml
          up-flags: --abort-on-container-exit --exit-code-from pg_back
          down-flags: --volumes

  buildx:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - id: prep
        if: "startsWith(github.ref, 'refs/tags/v')"
        run: |
          echo ::set-output name=tag::${GITHUB_REF#refs/tags/v}

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v2.2.0

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2.9.1

      - name: Cache Docker layers
        uses: actions/cache@v4
        with:
          path: /tmp/.buildx-cache
          key: ${{ runner.os }}-buildx-${{ github.sha }}
          restore-keys: |
            ${{ runner.os }}-buildx-

      - name: Login to GHCR
        uses: docker/login-action@v2.2.0
        if: github.event_name != 'pull_request'
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Push to GitHub Packages
        uses: docker/build-push-action@v4.1.1
        with:
          context: .
          tags: ghcr.io/${{ github.repository_owner }}/${{ env.IMAGE_NAME }}:${{ steps.prep.outputs.tag || 'latest' }}
          push: ${{ github.event_name != 'pull_request' }}
          cache-from: type=local,src=/tmp/.buildx-cache
          cache-to: type=local,dest=/tmp/.buildx-cache-new,mode=max

      - name: Move cache
        run: |
          rm -rf /tmp/.buildx-cache
          mv /tmp/.buildx-cache-new /tmp/.buildx-cache

