name: PR build and push ghcr image

permissions:
  contents: read
  packages: write

on:
  repository_dispatch:
    types: [build-pr]

jobs:
  build-and-push:
    runs-on: ubuntu-latest

    steps:
    - name: Checkout code
      uses: actions/checkout@v2

    - name: Set up QEMU
      uses: docker/setup-qemu-action@v1

    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v1

    - name: Login to GitHub Container Registry
      uses: docker/login-action@v2
      with:
        registry: ghcr.io
        username: jr-k
        password: ${{ secrets.GA_TOKEN }}

    - name: Build and push
      uses: docker/build-push-action@v2
      with:
        context: .
        file: ./Dockerfile
        push: true
        tags: ghcr.io/${{ github.repository_owner }}/obscreen:pr-${{ github.event.client_payload.pr_number }}
        platforms: linux/amd64, linux/arm64/v8, linux/arm/v7

    - name: Create and push manifest
      uses: docker/metadata-action@v3
      with:
        images: ghcr.io/${{ github.repository_owner }}/obscreen
        tags: pr-${{ github.event.client_payload.pr_number }}