name: "Conventional Commits"

on:
  pull_request:
    types:
      - opened
      - synchronize
jobs:
  main:
    name: Validate format
    runs-on: ubuntu-latest
    permissions:
      pull-requests: write
    steps:
      - uses: actions/checkout@v4
        with:
          ref: ${{ env.GITHUB_HEAD_REF }}
          fetch-tags: true

      - name: Fetch tags
        run: |
          git fetch --tags --quiet
          git checkout origin/${GITHUB_HEAD_REF}

      - name: Check commit message
        id: check_commit_message
        run: |
          set +e

          output=$(./_assets/scripts/commit_check.sh 2>&1)          
          exit_code=$?
          echo "exit_code=$exit_code" >> $GITHUB_OUTPUT
          
          if [[ $exit_code -ne 0 ]]; then
            invalid_commit_messages=$(echo $output | sed '1d;$d')
            EOF=$(dd if=/dev/urandom bs=15 count=1 status=none | base64)
            echo "error_message<<$EOF" >> "$GITHUB_ENV"
            echo "invalid_commit_messages" >> "$GITHUB_ENV"
            echo "$EOF" >> "$GITHUB_ENV"
          else
            has_breaking_changes=$(echo "$output" | tail -n 1)
            echo "has_breaking_changes=$has_breaking_changes" >> $GITHUB_OUTPUT
          fi

      - name: "Publish failed commit messages"
        uses: marocchino/sticky-pull-request-comment@v2
        # When the previous steps fails, the workflow would stop. By adding this
        # condition you can continue the execution with the populated error message.
        if: always() && (steps.check_commit_message.outputs.exit_code != 0)
        with:
          header: commit-message-lint-error
          message: |
            Thank you for opening this pull request!
            
            We require commits to follow the [Conventional Commits](https://www.conventionalcommits.org/en/v1.0.0/), but with `_` for non-breaking changes. 
            And it looks like your PR needs to be adjusted.

            Details:
            ```
            ${{ env.error_message }}
            ```

      - name: "Publish breaking changes message"
        uses: marocchino/sticky-pull-request-comment@v2
        # When the previous steps fails, the workflow would stop. By adding this
        # condition you can continue the execution with the populated error message.
        if: always() && (steps.check_commit_message.outputs.exit_code == 0 && steps.check_commit_message.outputs.has_breaking_changes == 'true')
        with:
          header: commit-message-lint-error
          message: |
            Thank you for opening this pull request!
            
            Looks like you have BREAKING CHANGES in your PR. 
            Please make sure to update [status-desktop](https://github.com/status-im/status-desktop) and [status-mobile](https://github.com/status-im/status-mobile) clients accordingly.

      # Delete a previous comment when the issue has been resolved
      - name: "Delete previous comment"
        if: ${{ steps.check_commit_message.outputs.exit_code == 0 && steps.check_commit_message.outputs.has_breaking_changes == 'false' }}
        uses: marocchino/sticky-pull-request-comment@v2
        with:
          header: commit-message-lint-error
          delete: true