# -*- coding: utf-8 -*-
# Copyright 2018 New Vector Ltd
#
# Licensed 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.

from twisted.internet import defer

from tests import unittest
from tests.utils import setup_test_homeserver

ALICE = "@alice:a"
BOB = "@bob:b"
BOBBY = "@bobby:a"
# The localpart isn't 'Bela' on purpose so we can test looking up display names.
BELA = "@somenickname:a"


class UserDirectoryStoreTestCase(unittest.TestCase):
    @defer.inlineCallbacks
    def setUp(self):
        self.hs = yield setup_test_homeserver(self.addCleanup)
        self.store = self.hs.get_datastore()

        # alice and bob are both in !room_id. bobby is not but shares
        # a homeserver with alice.
        yield defer.ensureDeferred(
            self.store.update_profile_in_user_dir(ALICE, "alice", None)
        )
        yield defer.ensureDeferred(
            self.store.update_profile_in_user_dir(BOB, "bob", None)
        )
        yield defer.ensureDeferred(
            self.store.update_profile_in_user_dir(BOBBY, "bobby", None)
        )
        yield defer.ensureDeferred(
            self.store.update_profile_in_user_dir(BELA, "Bela", None)
        )
        yield defer.ensureDeferred(
            self.store.add_users_in_public_rooms("!room:id", (ALICE, BOB))
        )

    @defer.inlineCallbacks
    def test_search_user_dir(self):
        # normally when alice searches the directory she should just find
        # bob because bobby doesn't share a room with her.
        r = yield defer.ensureDeferred(self.store.search_user_dir(ALICE, "bob", 10))
        self.assertFalse(r["limited"])
        self.assertEqual(1, len(r["results"]))
        self.assertDictEqual(
            r["results"][0], {"user_id": BOB, "display_name": "bob", "avatar_url": None}
        )

    @defer.inlineCallbacks
    def test_search_user_dir_all_users(self):
        self.hs.config.user_directory_search_all_users = True
        try:
            r = yield defer.ensureDeferred(self.store.search_user_dir(ALICE, "bob", 10))
            self.assertFalse(r["limited"])
            self.assertEqual(2, len(r["results"]))
            self.assertDictEqual(
                r["results"][0],
                {"user_id": BOB, "display_name": "bob", "avatar_url": None},
            )
            self.assertDictEqual(
                r["results"][1],
                {"user_id": BOBBY, "display_name": "bobby", "avatar_url": None},
            )
        finally:
            self.hs.config.user_directory_search_all_users = False

    @defer.inlineCallbacks
    def test_search_user_dir_stop_words(self):
        """Tests that a user can look up another user by searching for the start if its
        display name even if that name happens to be a common English word that would
        usually be ignored in full text searches.
        """
        self.hs.config.user_directory_search_all_users = True
        try:
            r = yield defer.ensureDeferred(self.store.search_user_dir(ALICE, "be", 10))
            self.assertFalse(r["limited"])
            self.assertEqual(1, len(r["results"]))
            self.assertDictEqual(
                r["results"][0],
                {"user_id": BELA, "display_name": "Bela", "avatar_url": None},
            )
        finally:
            self.hs.config.user_directory_search_all_users = False
