from __future__ import annotations

import tempfile
import unittest
from pathlib import Path

from alembic.runtime.migration import MigrationContext
from sqlalchemy import create_engine, inspect

from govoplan_core.db.migrations import migrate_database
from govoplan_risk_compliance.backend.manifest import get_manifest


class RiskComplianceMigrationTests(unittest.TestCase):
    def test_baseline_creates_screening_evidence_tables(self) -> None:
        with tempfile.TemporaryDirectory(
            prefix="govoplan-risk-migration-"
        ) as directory:
            url = f"sqlite:///{Path(directory) / 'risk.db'}"
            migrate_database(
                database_url=url,
                enabled_modules=("risk_compliance",),
                manifest_factories=(get_manifest,),
            )
            engine = create_engine(url)
            try:
                with engine.connect() as connection:
                    self.assertIn(
                        "a8b9c0d1e2f3",
                        set(
                            MigrationContext.configure(
                                connection
                            ).get_current_heads()
                        ),
                    )
                    tables = set(
                        inspect(connection).get_table_names()
                    )
                    self.assertIn(
                        "risk_sanctions_list_snapshots",
                        tables,
                    )
                    self.assertIn("risk_screening_runs", tables)
                    self.assertIn(
                        "risk_screening_dispositions",
                        tables,
                    )
                    self.assertIn(
                        "risk_screening_exceptions",
                        tables,
                    )
            finally:
                engine.dispose()


if __name__ == "__main__":
    unittest.main()