name: Test Database Migrations

on:
  push:
    paths:
      - "server/migrations/**"
      - "server/reflector/db/**"
      - "server/alembic.ini"
      - ".github/workflows/db_migrations.yml"
  pull_request:
    paths:
      - "server/migrations/**"
      - "server/reflector/db/**"
      - "server/alembic.ini"
      - ".github/workflows/db_migrations.yml"

jobs:
  test-migrations:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

      - name: Install poetry
        run: pipx install poetry

      - name: Set up Python 3.x
        uses: actions/setup-python@v4
        with:
          python-version: "3.11"
          cache: "poetry"
          cache-dependency-path: "server/poetry.lock"

      - name: Install requirements
        working-directory: ./server
        run: |
          poetry install --no-root

      - name: Test migrations from scratch
        working-directory: ./server
        run: |
          echo "Testing migrations from clean database..."
          poetry run alembic upgrade head
          echo "✅ Fresh migration successful"

      - name: Test migration rollback and re-apply
        working-directory: ./server
        run: |
          echo "Testing rollback to base..."
          poetry run alembic downgrade base
          echo "✅ Rollback successful"

          echo "Testing re-apply of all migrations..."
          poetry run alembic upgrade head
          echo "✅ Re-apply successful"