on:
  push:
    branches:
      - 'main'

env:
  RAILS_SERVE_STATIC_FILES: 'true'
  RAILS_ENV: 'production'
  NODE_ENV: 'production'
  GIT_BRANCH: 'asonix/downstream'
  GIT_REPOSITORY: 'asonix/mastodon'
  GIT_HOST: 'https://git.asonix.dog'
  REGISTRY_IMAGE: 'asonix/mastodon'
  MASTODON_VERSION: 'v4.2.7'
  REVISION: '1'


jobs:
  build-assets:
    runs-on: base-image
    steps:
      -
        name: Clone mastodon
        uses: https://github.com/actions/checkout@v4
        with:
          repository: ${{ env.GIT_REPOSITORY }}
          ref: ${{ env.GIT_BRANCH }}
      -
        name: Install Ruby
        run: |
          apt-get -y install ruby-full libidn-dev
          gem install bundler
      -
        name: Configure Bundler
        run: |
          bundle config set --local deployment true
          bundle config set --local without 'development test'
          bundle config set --local path vendor/bundle
          bundle config set silence_root_warning true
      -
        name: Fetch gem cache
        id: gem-cache
        uses: https://github.com/actions/cache/restore@v4
        with:
          path: |
            vendor/bundle/
          key: gem-${{ hashFiles('Gemfile') }}-${{ hashFiles('Gemfile.lock') }}
      -
        name: Install gems
        if: steps.gem-cache.outputs.cache-hit != 'true'
        run: |
          bundle install -j$(nproc)
      -
        name: Save gem cache
        if: steps.gem-cache.outputs.cache-hit != 'true'
        uses: https://github.com/actions/cache/save@v4
        with:
          path: |
            vendor/bundle/
          key: ${{ steps.gem-cache.outputs.cache-primary-key }}
      -
        name: Fetch node cache
        id: node-cache
        uses: https://github.com/actions/cache/restore@v4
        with:
          path: |
            node_modules/
          key: node-${{ hashFiles('package.json') }}-${{ hashFiles('yarn.lock') }}
      -
        name: Install node packages
        if: steps.node-cache.outputs.cache-hit != 'true'
        run: |
          yarn install --pure-lockfile --production --network-timeout=30000
      -
        name: Save node cache
        if: steps.node-cache.outputs.cache-hit != 'true'
        uses: https://github.com/actions/cache/save@v4
        with:
          path: |
            node_modules/
          key: ${{ steps.node-cache.outputs.cache-primary-key }}
      -
        name: Build Assets
        run: bundle exec rails assets:precompile
        env:
          OTP_SECRET: precompile_placeholder
          SECRET_KEY_BASE: precompile_placeholder
      -
        name: GZip Assets
        run: tar -zcf public.tar.gz public
      -
        name: Upload Assets
        uses: https://github.com/actions/upload-artifact@v3
        with:
          name: assets
          path: public.tar.gz


  prepare-suffix:
    runs-on: base-image
    outputs:
      SUFFIX: ${{ steps.prepare-suffix.outputs.suffix }}
    steps:
      -
        name: Prepare suffix
        id: prepare-suffix
        run: |
          suffix=${{ env.GIT_BRANCH }}
          echo "suffix=${suffix//\//-}" >> "$GITHUB_OUTPUT"
        shell: bash


  build-containers:
    needs: [build-assets, prepare-suffix]
    runs-on: base-image
    strategy:
      fail-fast: false
      matrix:
        info:
          - platform: amd64
            name: amd64
          - platform: arm64
            name: arm64v8
    steps:
      -
        name: Clone self
        uses: https://github.com/actions/checkout@v4
      -
        name: Download assets
        uses: https://github.com/actions/download-artifact@v3
        with:
          name: assets
          path: .
      -
        name: GUnzip Assets 
        run: |
          tar -zxf public.tar.gz
      -
        name: Prepare Platform
        run: |
          platform=${{ matrix.info.platform }}
          echo "PLATFORM_PAIR=${platform//\//-}" >> $GITHUB_ENV
        shell: bash
      -
        name: Docker meta
        id: meta
        uses: https://github.com/docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY_IMAGE }}
          flavor: |
            latest=auto
            suffix=-${{ needs.prepare-suffix.outputs.suffix }}-${{ matrix.info.name }}
          tags: |
            type=semver,pattern={{version}}-r${{ env.REVISION }},value=${{ env.MASTODON_VERSION }}
            type=semver,pattern={{version}},value=${{ env.MASTODON_VERSION }}
            type=semver,pattern={{major}}.{{minor}},value=${{ env.MASTODON_VERSION }}
            type=semver,pattern={{major}},value=${{ env.MASTODON_VERSION }}
      - 
        name: Set up QEMU
        uses: https://github.com/docker/setup-qemu-action@v3
      - 
        name: Set up Docker Buildx
        uses: https://github.com/docker/setup-buildx-action@v3
      -
        name: Docker login
        uses: https://github.com/docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      -
        name: Build and push docker image
        id: build
        uses: docker/build-push-action@v5
        with:
          context: .
          build-args: |
            GIT_REPOSITORY=${{ env.GIT_HOST }}/${{ env.GIT_REPOSITORY }}
            GIT_BRANCH=${{ env.GIT_BRANCH }}
          platforms: ${{ matrix.info.platform }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          outputs: type=image,name=${{ env.REGISTRY_IMAGE }},name-canonical=true,push=true
      -
        name: Export digest
        run: |
          mkdir -p /tmp/digests
          digest="${{ steps.build.outputs.digest }}"
          touch "/tmp/digests/${digest#sha256:}"
          echo "Created /tmp/digests/${digest#sha256:}"
        shell: bash
      -
        name: Upload ${{ matrix.info.platform }} digest
        uses: https://github.com/actions/upload-artifact@v3
        with:
          name: digests
          path: /tmp/digests/*
          if-no-files-found: error
          retention-days: 1

  publish-docker:
    runs-on: base-image
    needs: [build-containers, prepare-suffix]
    steps:
      -
        name: Download digests
        uses: https://github.com/actions/download-artifact@v3
        with:
          name: digests
          path: /tmp/digests
          pattern: digests-*
          merge-multiple: true
      - 
        name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
      -
        name: Docker login
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      -
        name: Docker meta
        id: meta
        uses: https://github.com/docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY_IMAGE }}
          flavor: |
            latest=auto
            suffix=-${{ needs.prepare-suffix.outputs.suffix }}
          tags: |
            type=semver,pattern={{version}}-r${{ env.REVISION }},value=${{ env.MASTODON_VERSION }}
            type=semver,pattern={{version}},value=${{ env.MASTODON_VERSION }}
            type=semver,pattern={{major}}.{{minor}},value=${{ env.MASTODON_VERSION }}
            type=semver,pattern={{major}},value=${{ env.MASTODON_VERSION }}
      -
        name: Create manifest list and push
        working-directory: /tmp/digests
        run: |
          tags=$(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "${DOCKER_METADATA_OUTPUT_JSON}")
          images=$(printf "${{ env.REGISTRY_IMAGE  }}@sha256:%s " *)
          echo "Running 'docker buildx imagetools create ${tags[@]} ${images[@]}'"
          docker buildx imagetools create ${tags[@]} ${images[@]}
        shell: bash
      -
        name: Inspect Image
        run: |
          docker buildx imagetools inspect ${{ env.REGISTRY_IMAGE }}:${{ steps.meta.outputs.version }}