# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.
# pylint: disable=redefined-outer-name, import-outside-toplevel

import importlib
from typing import Any, Callable, Iterator

import pytest
from pytest_mock import MockFixture
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker
from sqlalchemy.orm.session import Session

from superset.app import SupersetApp
from superset.extensions import appbuilder
from superset.initialization import SupersetAppInitializer


@pytest.fixture
def get_session(mocker: MockFixture) -> Callable[[], Session]:
    """
    Create an in-memory SQLite session to test models.
    """
    engine = create_engine("sqlite://")

    def get_session():
        Session_ = sessionmaker(bind=engine)  # pylint: disable=invalid-name
        in_memory_session = Session_()

        # flask calls session.remove()
        in_memory_session.remove = lambda: None

        # patch session
        mocker.patch(
            "superset.security.SupersetSecurityManager.get_session",
            return_value=in_memory_session,
        )
        mocker.patch("superset.db.session", in_memory_session)
        return in_memory_session

    return get_session


@pytest.fixture
def session(get_session) -> Iterator[Session]:
    yield get_session()


@pytest.fixture(scope="module")
def app() -> Iterator[SupersetApp]:
    """
    A fixture that generates a Superset app.
    """
    app = SupersetApp(__name__)

    app.config.from_object("superset.config")
    app.config["SQLALCHEMY_DATABASE_URI"] = "sqlite://"
    app.config["TESTING"] = True

    # ``superset.extensions.appbuilder`` is a singleton, and won't rebuild the
    # routes when this fixture is called multiple times; we need to clear the
    # registered views to ensure the initialization can happen more than once.
    appbuilder.baseviews = []

    app_initializer = SupersetAppInitializer(app)
    app_initializer.init_app()

    # reload base views to ensure error handlers are applied to the app
    with app.app_context():
        import superset.views.base

        importlib.reload(superset.views.base)

    yield app


@pytest.fixture
def client(app: SupersetApp) -> Any:
    with app.test_client() as client:
        yield client


@pytest.fixture
def app_context(app: SupersetApp) -> Iterator[None]:
    """
    A fixture that yields and application context.
    """
    with app.app_context():
        yield