pr.yml

name: CI

on:
  pull_request:
    branches: [master]
    types: [opened, synchronize, reopened]
  push:
    branches: [master]

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

permissions:
  contents: read

jobs:
  changes:
    name: Detect Changes
    runs-on: ubuntu-latest
    outputs:
      backend: ${{ steps.filter.outputs.backend }}
      frontend: ${{ steps.filter.outputs.frontend }}
    steps:
      - uses: actions/checkout@v4
      - uses: dorny/paths-filter@v3
        id: filter
        with:
          filters: |
            backend:
              - 'montage/**'
              - 'requirements.txt'
              - 'requirements.in'
              - 'setup.py'
              - 'dockerfile'
            frontend:
              - 'frontend/**'

  test-backend:
    name: Test Backend (Python)
    needs: changes
    if: needs.changes.outputs.backend == 'true'
    uses: ./.github/workflows/test-backend.yml

  lint-frontend:
    name: Lint & Build Frontend (Vue)
    needs: changes
    if: needs.changes.outputs.frontend == 'true'
    uses: ./.github/workflows/lint-frontend.yml

  ci-complete:
    name: CI Complete
    runs-on: ubuntu-latest
    needs: [test-backend, lint-frontend]
    if: always()
    steps:
      - name: Check job results
        run: |
          for job in test-backend lint-frontend; do
            case "$job" in
              test-backend)  result="${{ needs.test-backend.result }}" ;;
              lint-frontend) result="${{ needs.lint-frontend.result }}" ;;
            esac
            if [ "$result" != "success" ] && [ "$result" != "skipped" ]; then
              echo "::error::Job $job failed with result: $result"
              exit 1
            fi
          done
          echo "All CI jobs passed or were correctly skipped."