name: PR Branch Suggestion

on:
  pull_request_target:
    types: [opened]
    branches:
      - master

jobs:
  suggest-branch:
    runs-on: ubuntu-latest
    permissions:
      pull-requests: write
    steps:
      - name: Suggest maintenance branch
        uses: actions/github-script@v7
        with:
          script: |
            const comment = `### Branch Targeting Suggestion

            You've targeted the \`master\` branch with this PR. Please consider if a version branch might be more appropriate:

            - **\`maintenance-9.x\`** - If your change is backward-compatible and won't create compatibility issues between INAV firmware and Configurator 9.x versions. This will allow your PR to be included in the next 9.x release.

            - **\`maintenance-10.x\`** - If your change introduces compatibility requirements between firmware and configurator that would break 9.x compatibility. This is for PRs which will be included in INAV 10.x

            If \`master\` is the correct target for this change, no action is needed.

            ---
            *This is an automated suggestion to help route contributions to the appropriate branch.*`;

            try {
              await github.rest.issues.createComment({
                issue_number: context.issue.number,
                owner: context.repo.owner,
                repo: context.repo.repo,
                body: comment
              });
            } catch (err) {
              core.setFailed(`Failed to post suggestion comment: ${err}`);
            }