name: 'Check submodules branch'

on:
  push:
    branches:
      - dev
      - "release*"
    tags:
      - '*'
  pull_request:

jobs:
  check_protobuf:
    runs-on: [self-hosted, FlipperZeroShell]
    steps:
      - name: 'Decontaminate previous build leftovers'
        run: |
          if [ -d .git ]; then
            git submodule status || git checkout "$(git rev-list --max-parents=0 HEAD | tail -n 1)"
          fi

      - name: 'Checkout code'
        uses: actions/checkout@v2
        with:
          fetch-depth: 0
          ref: ${{ github.event.pull_request.head.sha }}

      - name: 'Check protobuf branch'
        run: |
          SUB_PATH="assets/protobuf";
          SUB_BRANCH="dev";
          SUB_COMMITS_MIN=40;
          cd "$SUB_PATH";
          SUBMODULE_HASH="$(git rev-parse HEAD)";
          BRANCHES=$(git branch -r --contains "$SUBMODULE_HASH");
          COMMITS_IN_BRANCH="$(git rev-list --count dev)";
          if [ $COMMITS_IN_BRANCH -lt $SUB_COMMITS_MIN ]; then
            echo "::set-output name=fails::error";
            echo "::error::Error: Too low commits in $SUB_BRANCH of submodule $SUB_PATH: $COMMITS_IN_BRANCH(expected $SUB_COMMITS_MIN+)";
            exit 1;
          fi
          if ! grep -q "/$SUB_BRANCH" <<< "$BRANCHES"; then
            echo "::set-output name=fails::error";
            echo "::error::Error: Submodule $SUB_PATH is not on branch $SUB_BRANCH";
            exit 1;
          fi