import unittest
from types import SimpleNamespace
from unittest.mock import AsyncMock, patch

from app import main as main_module
from app.core.settings import Settings
from app.db import bootstrap as bootstrap_module
from app.db import init_db as init_db_module
from app.db import tool_seed as tool_seed_module


class SettingsParsingTests(unittest.TestCase):
    def test_debug_accepts_release_alias(self):
        settings = Settings(
            google_project_id="test-project",
            debug="release",
        )

        self.assertFalse(settings.debug)

    def test_normalizes_environment_and_backend_values(self):
        settings = Settings(
            google_project_id="test-project",
            environment=" Production ",
            conversation_state_backend=" Redis ",
        )

        self.assertEqual(settings.environment, "production")
        self.assertEqual(settings.conversation_state_backend, "redis")


class BootstrapRuntimeTests(unittest.TestCase):
    @patch.object(bootstrap_module, "seed_tools")
    @patch.object(bootstrap_module, "seed_mock_data")
    @patch.object(bootstrap_module, "_ensure_mock_schema_evolution")
    @patch.object(bootstrap_module.MockBase.metadata, "create_all")
    @patch.object(bootstrap_module.Base.metadata, "create_all")
    def test_bootstrap_databases_respects_seed_flags(
        self,
        tools_create_all,
        mock_create_all,
        ensure_mock_schema_evolution,
        seed_mock_data,
        seed_tools,
    ):
        with patch.object(bootstrap_module.settings, "auto_seed_tools", False), patch.object(
            bootstrap_module.settings,
            "auto_seed_mock",
            False,
        ), patch.object(bootstrap_module.settings, "mock_seed_enabled", True):
            bootstrap_module.bootstrap_databases()

        tools_create_all.assert_called_once()
        mock_create_all.assert_called_once()
        seed_tools.assert_not_called()
        seed_mock_data.assert_not_called()

    @patch.object(bootstrap_module, "seed_tools")
    @patch.object(bootstrap_module, "seed_mock_data")
    @patch.object(bootstrap_module, "_ensure_mock_schema_evolution")
    @patch.object(bootstrap_module.MockBase.metadata, "create_all")
    @patch.object(bootstrap_module.Base.metadata, "create_all", side_effect=RuntimeError("tools db down"))
    def test_bootstrap_databases_raises_when_any_backend_fails(
        self,
        tools_create_all,
        mock_create_all,
        ensure_mock_schema_evolution,
        seed_mock_data,
        seed_tools,
    ):
        with self.assertRaisesRegex(RuntimeError, "tools=tools db down"):
            bootstrap_module.bootstrap_databases()

        tools_create_all.assert_called_once()
        mock_create_all.assert_called_once()
        seed_mock_data.assert_called_once()
        seed_tools.assert_not_called()

    @patch.object(init_db_module, "bootstrap_databases")
    def test_init_db_wrapper_delegates_to_bootstrap_databases(self, bootstrap_databases):
        init_db_module.init_db()

        bootstrap_databases.assert_called_once_with()


class ToolSeedTests(unittest.TestCase):
    def test_seed_tools_remove_tool_legada_de_multa(self):
        class FakeToolRepo:
            def __init__(self, tools):
                self.tools = list(tools)
                self.deleted_ids = []

            def get_all(self):
                return list(self.tools)

            def delete(self, tool_id):
                self.deleted_ids.append(tool_id)
                self.tools = [tool for tool in self.tools if tool.id != tool_id]

            def update_by_name(self, **kwargs):
                return kwargs

            def create(self, **kwargs):
                return kwargs

        repo = FakeToolRepo(
            [
                SimpleNamespace(id=1, name="registrar_multa_aluguel"),
                SimpleNamespace(id=2, name="consultar_estoque"),
            ]
        )
        fake_db = SimpleNamespace(close=lambda: None)

        with patch.object(tool_seed_module, "SessionLocal", return_value=fake_db), patch.object(
            tool_seed_module,
            "ToolRepository",
            return_value=repo,
        ):
            tool_seed_module.seed_tools()

        self.assertEqual(repo.deleted_ids, [1])
        self.assertFalse(any(tool.name == "registrar_multa_aluguel" for tool in repo.get_all()))


class HttpStartupTests(unittest.IsolatedAsyncioTestCase):
    async def test_startup_event_warms_llm_without_running_bootstrap(self):
        with patch("app.main.LLMService") as llm_cls, patch(
            "app.db.bootstrap.bootstrap_databases"
        ) as bootstrap_databases:
            llm_cls.return_value.warmup = AsyncMock()
            await main_module.startup_event()

        llm_cls.return_value.warmup.assert_awaited_once()
        bootstrap_databases.assert_not_called()


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