name: "Check PR Has Milestone"

on:
  pull_request:
    types: [opened, edited, synchronize, reopened, labeled]
    branches:
      - dev
      - master
      - V7

concurrency:
  group: "check-pr-milestone-${{ github.head_ref || github.run_id }}-${{ github.event_name }}"
  cancel-in-progress: true

jobs:
  fail-on-bad-milestone:
    if: github.event.pull_request.draft != true
    name: Fail if Pull Request has no Associated Version Milestone
    runs-on: ubuntu-latest
    steps:
      - name: Fail if no Milestone Set
        if: github.event.pull_request.milestone == null
        run: |
          echo "::error::Pull request must have milestone set!"
          exit 1

      - name: Fail if Invalid Milestone Set
        run: |
          if [[ ${{ github.event.pull_request.milestone.title }} =~ ^v[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
              exit 0
          fi
          echo "::error::Pull request has non-standard milestone!"
          exit 1