# coding: utf-8

# Python libs
from __future__ import absolute_import

import datetime
import logging

# Salt libs
from salt.beacons import telegram_bot_msg

# Salt testing libs
from tests.support.mixins import LoaderModuleMockMixin
from tests.support.mock import MagicMock, patch
from tests.support.unit import TestCase, skipIf

# Third-party libs
try:
    import telegram

    HAS_TELEGRAM = True
except ImportError:
    HAS_TELEGRAM = False


log = logging.getLogger(__name__)


@skipIf(not HAS_TELEGRAM, "telegram is not available")
class TelegramBotMsgBeaconTestCase(TestCase, LoaderModuleMockMixin):
    """
    Test case for salt.beacons.telegram_bot
    """

    def setup_loader_modules(self):
        return {telegram_bot_msg: {}}

    def test_validate_empty_config(self, *args, **kwargs):
        ret = telegram_bot_msg.validate(None)
        self.assertEqual(
            ret, (False, ("Configuration for telegram_bot_msg beacon must be a list.")),
        )

    def test_validate_missing_accept_from_config(self, *args, **kwargs):
        ret = telegram_bot_msg.validate([{"token": "bcd"}])
        self.assertEqual(
            ret,
            (False, ("Not all required configuration for telegram_bot_msg are set."),),
        )

    def test_validate_missing_token_config(self, *args, **kwargs):
        ret = telegram_bot_msg.validate([{"accept_from": []}])
        self.assertEqual(
            ret,
            (False, ("Not all required configuration for telegram_bot_msg are set."),),
        )

    def test_validate_config_not_list_in_accept_from(self, *args, **kwargs):
        ret = telegram_bot_msg.validate(
            [{"token": "bcd", "accept_from": {"nodict": "1"}}]
        )
        self.assertEqual(
            ret,
            (
                False,
                (
                    "Configuration for telegram_bot_msg, "
                    "accept_from must be a list of "
                    "usernames."
                ),
            ),
        )

    def test_validate_valid_config(self, *args, **kwargs):
        ret = telegram_bot_msg.validate([{"token": "bcd", "accept_from": ["username"]}])
        self.assertEqual(ret, (True, "Valid beacon configuration."))

    def test_call_no_updates(self):
        with patch("salt.beacons.telegram_bot_msg.telegram") as telegram_api:
            token = "abc"
            config = [{"token": token, "accept_from": ["tester"]}]
            inst = MagicMock(name="telegram.Bot()")
            telegram_api.Bot = MagicMock(name="telegram", return_value=inst)
            inst.get_updates.return_value = []

            ret = telegram_bot_msg.beacon(config)
            self.assertEqual(ret, (True, "Valid beacon configuration"))

            telegram_api.Bot.assert_called_once_with(token)
            self.assertEqual(ret, [])

    def test_call_telegram_return_no_updates_for_user(self):
        with patch("salt.beacons.telegram_bot_msg.telegram") as telegram_api:
            token = "abc"
            username = "tester"
            config = [{"token": token, "accept_from": [username]}]
            inst = MagicMock(name="telegram.Bot()")
            telegram_api.Bot = MagicMock(name="telegram", return_value=inst)

            log.debug("telegram {}".format(telegram))
            username = "different_user"
            user = telegram.user.User(id=1, first_name="", username=username)
            chat = telegram.chat.Chat(1, "private", username=username)
            date = datetime.datetime(2016, 12, 18, 0, 0)
            message = telegram.message.Message(1, user, date=date, chat=chat)
            update = telegram.update.Update(update_id=1, message=message)

            inst.get_updates.return_value = [update]

            ret = telegram_bot_msg.beacon(config)
            self.assertEqual(ret, (True, "Valid beacon configuration"))

            telegram_api.Bot.assert_called_once_with(token)
            self.assertEqual(ret, [])

    def test_call_telegram_returning_updates(self):
        with patch("salt.beacons.telegram_bot_msg.telegram") as telegram_api:
            token = "abc"
            username = "tester"
            config = [{"token": token, "accept_from": [username]}]
            inst = MagicMock(name="telegram.Bot()")
            telegram_api.Bot = MagicMock(name="telegram", return_value=inst)

            user = telegram.User(id=1, first_name="", username=username)
            chat = telegram.Chat(1, "private", username=username)
            date = datetime.datetime(2016, 12, 18, 0, 0)
            message = telegram.Message(1, user, date=date, chat=chat)
            update = telegram.update.Update(update_id=1, message=message)

            inst.get_updates.return_value = [update]

            ret = telegram_bot_msg.beacon(config)
            self.assertEqual(ret, (True, "Valid beacon configuration"))

            telegram_api.Bot.assert_called_once_with(token)
            self.assertTrue(ret)
            self.assertEqual(ret[0]["msgs"][0], message.to_dict())