name: Docker Images CI
on:
  push:
    branches: main

jobs:
  build-platform:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        platform: [linux/amd64, linux/arm/v7, linux/arm64/v8]

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

      - name: Login to DockerHub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}

      - name: Prepare Platform Tag
        id: platform_tag
        run: echo "platform_tag=$(echo ${{ matrix.platform }} | sed 's|/|-|g')" >> $GITHUB_ENV

      - name: Build and push platform-specific image
        uses: docker/build-push-action@v5
        with:
          context: .
          platforms: ${{ matrix.platform }}
          push: true
          tags: albertoxamin/bang:${{ env.platform_tag }}
          cache-from: type=registry,ref=albertoxamin/bang:${{ env.platform_tag }}
          cache-to: type=inline

  create-manifest:
    runs-on: ubuntu-latest
    needs: build-platform
    steps:
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Login to DockerHub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}

      - name: Create and push multi-arch manifest
        run: |
          docker buildx imagetools create \
            --tag albertoxamin/bang:latest \
            albertoxamin/bang:linux-amd64 \
            albertoxamin/bang:linux-arm-v7 \
            albertoxamin/bang:linux-arm64-v8