name: Build

on:
  workflow_dispatch:
  push:
    branches:
      - 'main'
    tags:
      - 'v*.*.*'
  pull_request:
    branches:
      - 'main'

permissions:
  contents: read

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v6
        with:
          submodules: recursive

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v4

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v4

      - name: Docker meta
        id: ourdockertags
        uses: docker/metadata-action@v6
        with:
          images: |
            docker.io/tinpotnick/projectrtp
          tags: |
            type=schedule
            type=ref,event=branch
            type=ref,event=pr
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=semver,pattern={{major}}
            type=sha

      - name: Login to Docker Hub
        if: github.event_name != 'pull_request'
        uses: docker/login-action@v4
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Build and push
        uses: docker/build-push-action@v7
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.ourdockertags.outputs.tags }}
          labels: ${{ steps.ourdockertags.outputs.labels }}