name: PR Format Validation

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

jobs:
  validate-pr:
    runs-on: ubuntu-latest
    steps:
      - name: Check PR Title Format
        uses: actions/github-script@v7
        with:
          script: |
            const prTitle = context.payload.pull_request.title;
            const titleRegex = /^([\w\s,{}/.]+): .+/;
            
            if (!titleRegex.test(prTitle)) {
              core.setFailed(`PR title "${prTitle}" does not match required format: directory, ...: description`);
              return;
            }
            
            console.log('✅ PR title format is valid');