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_encryption.backend.manifest import get_manifest


class EncryptionMigrationTests(unittest.TestCase):
    def test_migration_creates_lifecycle_tables(self) -> None:
        with tempfile.TemporaryDirectory(prefix="govoplan-encryption-") as directory:
            url = f"sqlite:///{Path(directory) / 'encryption.db'}"
            migrate_database(
                database_url=url,
                enabled_modules=("encryption",),
                manifest_factories=(get_manifest,),
            )
            engine = create_engine(url)
            try:
                tables = set(inspect(engine).get_table_names())
                self.assertTrue(
                    {
                        "encryption_vaults",
                        "encryption_key_versions",
                        "encryption_key_operations",
                        "encryption_content_protections",
                        "encryption_protection_migrations",
                        "encryption_recovery_ceremonies",
                        "encryption_recovery_approvals",
                    }.issubset(tables)
                )
                with engine.connect() as connection:
                    self.assertIn(
                        "d4a6b8c0e2f3",
                        set(MigrationContext.configure(connection).get_current_heads()),
                    )
            finally:
                engine.dispose()


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