# This workflow uses actions that are not certified by GitHub.
# They are provided by a third-party and are governed by
# separate terms of service, privacy policy, and support
# documentation.

name: Publish Docker image

on:
  release:
    types: [published]

env:
  OTP_VERSION: '24.3.4.1'
  ELIXIR_VERSION: '1.13.4'

jobs:
  push_to_registry:
    name: Push Docker image to Docker Hub
    runs-on: ubuntu-latest
    env:
      RELEASE_VERSION: 4.1.8
    steps:
      - name: Check out the repo
        uses: actions/checkout@v3

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

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

      - name: Log in to Docker Hub
        uses: docker/login-action@v2
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@v4
        with:
          images: blockscout/blockscout

      - name: Build & Push Docker image
        uses: docker/build-push-action@v3
        with:
          context: .
          file: ./docker/Dockerfile
          push: true
          cache-from: type=registry,ref=blockscout/blockscout:buildcache
          cache-to: type=registry,ref=blockscout/blockscout:buildcache,mode=max
          tags: blockscout/blockscout:latest, blockscout/blockscout:${{ env.RELEASE_VERSION }}
          platforms: |
            linux/arm64
            linux/amd64
          build-args: |
            CACHE_EXCHANGE_RATES_PERIOD=
            DISABLE_READ_API=false
            API_PATH=/
            NETWORK_PATH=/
            DISABLE_WEBAPP=false
            DISABLE_WRITE_API=false
            CACHE_ENABLE_TOTAL_GAS_USAGE_COUNTER=
            WOBSERVER_ENABLED=false
            ADMIN_PANEL_ENABLED=
            CACHE_ADDRESS_WITH_BALANCES_UPDATE_INTERVAL=
            SOCKET_ROOT=

  merge-master-after-release:
    name: Merge 'master' to specific branch after release
    runs-on: ubuntu-latest
    env:
      BRANCHES: |
        production-core-stg
        production-eth-stg
        production-harmony-mainnet-shard-0-stg
        production-lukso-stg
        production-optimism-goerli-stg
        production-optimism-bedrock-goerli-stg
        production-optimism-mainnet-stg
        production-optimism-stg
        production-rsk-stg
        production-sokol-stg
        production-xdai-stg
    steps:
    - uses: actions/checkout@v2
    - name: Set Git config
      run: |
          git config --local user.email "actions@github.com"
          git config --local user.name "Github Actions"
    - name: Merge master back after release
      run: |
          git fetch --unshallow
          touch errors.txt
          for branch in $BRANCHES;
          do
            git reset --merge
            git checkout master
            git fetch origin
            echo $branch
            git ls-remote --exit-code --heads origin $branch || { echo $branch >> errors.txt; continue; }
            echo "Merge 'master' to $branch"
            git checkout $branch
            git pull || { echo $branch >> errors.txt; continue; }
            git merge --no-ff master -m "Auto-merge master back to $branch" || { echo $branch >> errors.txt; continue; }
            git push || { echo $branch >> errors.txt; continue; }
            git checkout master;
          done
          [ -s errors.txt ] && echo "There are problems with merging 'master' to branches:" || echo "Errors file is empty"
          cat errors.txt
          [ ! -s errors.txt ]