name: Build and Push Sandbox Base Image

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

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

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

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

      - name: Set image name (lowercase)
        id: meta
        run: |
          echo "image=${{ secrets.DOCKER_REGISTRY }}/${{ toLower(gitea.repository) }}" >> $GITHUB_OUTPUT

      - name: Log in to Gitea Container Registry
        uses: docker/login-action@v3
        with:
          registry: ${{ steps.meta.outputs.image }}
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}

      - name: Build and push
        id: build
        uses: docker/build-push-action@v5
        with:
          context: .
          push: ${{ github.event_name != 'pull_request' }}
          tags: |
            ${{ steps.meta.outputs.image }}:${{ github.sha }}
            ${{ steps.meta.outputs.image }}:latest
          cache-from: type=registry,ref=${{ steps.meta.outputs.image }}:latest
          cache-to: type=registry,ref=${{ steps.meta.outputs.image }}:latest,mode=max
          platforms: linux/amd64,linux/arm64

      - name: Tag and push stable (main only)
        if: github.ref == 'refs/heads/main' && github.event_name != 'pull_request'
        run: |
          docker tag ${{ steps.meta.outputs.image }}:${{ github.sha }} ${{ steps.meta.outputs.image }}:stable
          docker push ${{ steps.meta.outputs.image }}:stable