name: "Conventional Commits"

on:
  pull_request_target:
    types:
      - opened
      - reopened
      - synchronize
      - labeled
      - unlabeled
jobs:
  lint_pr_commits:
    name: Validate commit messages
    runs-on: ubuntu-latest
    permissions:
      pull-requests: write
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
          ref: ${{github.event.pull_request.head.ref}}
          repository: ${{github.event.pull_request.head.repo.full_name}}

      - name: Check commit message
        id: check_commit_message
        if: always()
        run: |
          set +e
          
          base_sha=${{ github.event.pull_request.base.sha }} 
          head_sha=${{ github.event.pull_request.head.sha }}

          output=$(./_assets/scripts/commit_check.sh "${base_sha}" "${head_sha}" 2>&1)
          exit_code=$?
          
          echo "${output}" | sed '$d'
          echo "has_breaking_changes=${has_breaking_changes}"
          
          echo "exit_code=${exit_code}" >> $GITHUB_OUTPUT
          
          has_breaking_changes=$(echo "${output}" | tail -n 1)
          echo "has_breaking_changes=${has_breaking_changes}" >> $GITHUB_OUTPUT
          
          invalid_commit_messages=$(echo "${output}" | sed '1d;$d')
          invalid_commit_messages=$(echo "${output}" | sed '1d;$d')
          invalid_commit_messages=$(echo "${invalid_commit_messages}" | sed 's/\x1b\[[0-9;]*m//g') # Remove color codes
          invalid_commit_messages=$(echo "${invalid_commit_messages}" | sed 's/^Commit message is ill-formed: //') # Remove prefix
          
          if [[ $exit_code -ne 0 ]]; then
            EOF=$(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"
          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: |
            We require commits to follow the [Conventional Commits](https://www.conventionalcommits.org/en/v1.0.0/), but with `_` for non-breaking changes. 
            Please fix these commit messages:
            ```
            ${{ 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: |
            Looks like you have BREAKING CHANGES in your PR. 
            Please make sure to follow [💔How to introduce breaking changes](https://www.notion.so/How-to-introduce-breaking-changes-ded9ec2d91464a46a2593c0d8de62fbe?pvs=4) guide:
            
            ### Check-list
            
            - [ ] Tried to avoid this breaking change
            - [ ] Updated [status-desktop](https://github.com/status-im/status-desktop) 
            - [ ] Updated [status-mobile](https://github.com/status-im/status-mobile)

      # 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

      - name: "Mark as failed"
        if: steps.check_commit_message.outputs.exit_code != 0
        uses: actions/github-script@v7
        with:
          script: |
            core.setFailed("Some commit messages are ill-formed")

      - name: "Update breaking changes label"
        if: always()
        run: |
          if [[ $ADD_LABEL == 'true' ]]; then
            command="--add-label"
          else
            command="--remove-label"
          fi
          gh issue edit "$NUMBER" $command "breaking change"
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          GH_REPO: ${{ github.repository }}
          NUMBER: ${{ github.event.pull_request.number }}
          ADD_LABEL: ${{ steps.check_commit_message.outputs.has_breaking_changes == 'true' }}