name: Build and Publish Docker

on:
  push:
    branches:
      - main
      - develop

env:
  REGISTRY_IMAGE: jqtype/rpxy

jobs:
  build_and_push:
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        platform:
          - linux/amd64
          - linux/arm64

    steps:
      - name: Checkout
        uses: actions/checkout@v3
        with:
          submodules: recursive

      - name: GitHub Environment
        run: echo "BRANCH=${GITHUB_REF##*/}" >> $GITHUB_ENV

      - name: Docker meta
        id: meta
        uses: docker/metadata-action@v4
        with:
          images: ${{ env.REGISTRY_IMAGE }}

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v2

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2

      - name: Login to Docker Hub
        uses: docker/login-action@v2
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Release build and push by digest
        if: ${{ env.BRANCH == 'main' }}
        uses: docker/build-push-action@v4
        with:
          context: .
          push: true
          tags: |
            ${{ env.REGISTRY_IMAGE }}:latest
          file: ./docker/Dockerfile
          cache-from: type=gha,scope=${{ matrix.platform }}-latest
          cache-to: type=gha,mode=max,scope=${{ matrix.platform }}-latest
          platforms: ${{ matrix.platform }}
          labels: ${{ steps.meta.outputs.labels }}
          outputs: type=image,name=${{ env.REGISTRY_IMAGE }},push-by-digest=true,name-canonical=true,push=true

      - name: Release build and push slim
        if: ${{ env.BRANCH == 'main' }}
        uses: docker/build-push-action@v4
        with:
          context: .
          push: true
          tags: |
            ${{ env.REGISTRY_IMAGE }}:slim, ${{ env.REGISTRY_IMAGE }}:latest-slim
          build-contexts: |
            messense/rust-musl-cross:amd64-musl=docker-image://messense/rust-musl-cross:x86_64-musl
            messense/rust-musl-cross:arm64-musl=docker-image://messense/rust-musl-cross:aarch64-musl
          file: ./docker/Dockerfile.slim
          cache-from: type=gha,scope=${{ matrix.platform }}-latest-slim
          cache-to: type=gha,mode=max,scope=${{ matrix.platform }}-latest-slim
          platforms: ${{ matrix.platform }}
          labels: ${{ steps.meta.outputs.labels }}
          outputs: type=image,name=${{ env.REGISTRY_IMAGE }},push-by-digest=true,name-canonical=true,push=true

      - name: Nightly build and push
        if: ${{ env.BRANCH == 'develop' }}
        uses: docker/build-push-action@v4
        with:
          context: .
          push: true
          tags: |
            ${{ env.REGISTRY_IMAGE }}:nightly
          file: ./docker/Dockerfile
          cache-from: type=gha,scope=${{ matrix.platform }}-nightly
          cache-to: type=gha,mode=max,scope=${{ matrix.platform }}-nightly
          platforms: ${{ matrix.platform }}
          labels: ${{ steps.meta.outputs.labels }}
          outputs: type=image,name=${{ env.REGISTRY_IMAGE }},push-by-digest=true,name-canonical=true,push=true

      - name: Nightly build and push slim
        if: ${{ env.BRANCH == 'develop' }}
        uses: docker/build-push-action@v4
        with:
          context: .
          push: true
          tags: |
            ${{ env.REGISTRY_IMAGE }}:nightly-slim
          build-contexts: |
            messense/rust-musl-cross:amd64-musl=docker-image://messense/rust-musl-cross:x86_64-musl
            messense/rust-musl-cross:arm64-musl=docker-image://messense/rust-musl-cross:aarch64-musl
          file: ./docker/Dockerfile.slim
          cache-from: type=gha,scope=${{ matrix.platform }}-nightly-slim
          cache-to: type=gha,mode=max,scope=${{ matrix.platform }}-nightly-slim
          platforms: ${{ matrix.platform }}
          labels: ${{ steps.meta.outputs.labels }}
          outputs: type=image,name=${{ env.REGISTRY_IMAGE }},push-by-digest=true,name-canonical=true,push=true


      - name: Export digest
        run: |
          mkdir -p /tmp/digests
          digest="${{ steps.build.outputs.digest }}"
          touch "/tmp/digests/${digest#sha256:}"

      - name: Upload digest
        uses: actions/upload-artifact@v3
        with:
          name: digests
          path: /tmp/digests/*
          if-no-files-found: error
          retention-days: 1

  merge:
    runs-on: ubuntu-latest
    needs:
      - build_and_push
    steps:
      -
        name: Download digests
        uses: actions/download-artifact@v3
        with:
          name: digests
          path: /tmp/digests
      -
        name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2
      -
        name: Docker meta
        id: meta
        uses: docker/metadata-action@v4
        with:
          images: ${{ env.REGISTRY_IMAGE }}
      -
        name: Login to Docker Hub
        uses: docker/login-action@v2
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      -
        name: Create manifest list and push
        working-directory: /tmp/digests
        run: |
          docker buildx imagetools create $(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \
            $(printf '${{ env.REGISTRY_IMAGE }}@sha256:%s ' *)
      -
        name: Inspect image
        run: |
          docker buildx imagetools inspect ${{ env.REGISTRY_IMAGE }}:${{ steps.meta.outputs.version }}