name: Check PR Template Checklist

on:
  pull_request:
    types: [opened, edited, synchronize]

jobs:
  check-pr-template:
    runs-on: ubuntu-24.04
    steps:
      - name: check all checklist items are checked
        uses: actions/github-script@v7
        with:
          script: |
            // get the pull request body
            const prBody = context.payload.pull_request.body || '';

            // regex to match all checklist items in the template
            // matches lines like: - [ ] ... or - [x] ...
            const checklistRegex = /^- \[( |x|X)\] .+$/gm;
            const matches = prBody.match(checklistRegex) || [];

            // check if any checklist item is not checked
            const unchecked = matches.filter(line => line.startsWith('- [ ]'));

            // if any unchecked, fail the workflow
            if (unchecked.length > 0) {
              core.setFailed(`PR checklist 未全部勾选，请确保所有 checklist 项都已勾选。未勾选项如下：\n${unchecked.join('\n')}`);
            } else {
              console.log('all checklist items are checked.');
            }