name: Build android-emulator

# ADR-0002: infra-owned image built off-infra on GHA → ghcr (public).
# Large image (Android SDK + emulator); on-demand workload (scaled 0). Rebuilds
# rare → dispatch + path trigger.
on:
  push:
    branches: [master]
    paths:
      - 'stacks/android-emulator/docker/**'
  workflow_dispatch: {}

permissions:
  contents: read
  packages: write

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: docker/setup-buildx-action@v3
      - uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - uses: docker/build-push-action@v6
        with:
          context: stacks/android-emulator/docker
          platforms: linux/amd64
          provenance: false
          push: true
          tags: |
            ghcr.io/viktorbarzin/android-emulator:latest
            ghcr.io/viktorbarzin/android-emulator:${{ github.sha }}