import test_helper
from mockredis import MockRedis
from cartodb_services.metrics import QuotaService
from cartodb_services.metrics import GeocoderConfig, RoutingConfig
from unittest import TestCase
from nose.tools import assert_raises
from datetime import datetime, date


class TestQuotaService(TestCase):

    # single user
    #   user:<username>:<service>:<metric>:YYYYMM:DD
    # organization user
    #   org:<orgname>:<service>:<metric>:YYYYMM:DD

    def setUp(self):
        self.redis_conn = MockRedis()

    def test_should_return_true_if_user_quota_with_no_use(self):
        qs = self.__build_geocoder_quota_service('test_user')
        assert qs.check_user_quota() is True

    def test_should_return_true_if_org_quota_with_no_use(self):
        qs = self.__build_geocoder_quota_service('test_user',
                                                 orgname='test_org')
        assert qs.check_user_quota() is True

    def test_should_return_true_if_user_quota_is_not_completely_used(self):
        qs = self.__build_geocoder_quota_service('test_user')
        test_helper.increment_geocoder_uses(self.redis_conn, 'test_user')
        assert qs.check_user_quota() is True

    def test_should_return_true_if_org_quota_is_not_completely_used(self):
        qs = self.__build_geocoder_quota_service('test_user',
                                                 orgname='test_org')
        test_helper.increment_geocoder_uses(self.redis_conn, 'test_user',
                                            orgname='test_org')
        assert qs.check_user_quota() is True

    def test_should_return_false_if_user_quota_is_surpassed(self):
        qs = self.__build_geocoder_quota_service('test_user')
        test_helper.increment_geocoder_uses(self.redis_conn, 'test_user',
                                            amount=300)
        assert qs.check_user_quota() is False

    def test_should_return_false_if_org_quota_is_surpassed(self):
        qs = self.__build_geocoder_quota_service('test_user',
                                                 orgname='test_org')
        test_helper.increment_geocoder_uses(self.redis_conn, 'test_user',
                                            orgname='test_org', amount=400)
        assert qs.check_user_quota() is False

    def test_should_return_true_if_user_quota_is_surpassed_but_soft_limit_is_enabled(self):
        qs = self.__build_geocoder_quota_service('test_user', soft_limit=True)
        test_helper.increment_geocoder_uses(self.redis_conn, 'test_user',
                                            amount=300)
        assert qs.check_user_quota() is True

    def test_should_return_true_if_org_quota_is_surpassed_but_soft_limit_is_enabled(self):
        qs = self.__build_geocoder_quota_service('test_user',
                                                 orgname='test_org',
                                                 soft_limit=True)
        test_helper.increment_geocoder_uses(self.redis_conn, 'test_user',
                                            orgname='test_org', amount=400)
        assert qs.check_user_quota() is True

    def test_should_check_user_increment_and_quota_check_correctly(self):
        qs = self.__build_geocoder_quota_service('test_user', quota=2)
        qs.increment_success_service_use()
        assert qs.check_user_quota() is True
        qs.increment_success_service_use(amount=2)
        assert qs.check_user_quota() is False

    def test_should_check_org_increment_and_quota_check_correctly(self):
        qs = self.__build_geocoder_quota_service('test_user', quota=2,
                                                 orgname='test_org')
        qs.increment_success_service_use()
        assert qs.check_user_quota() is True
        qs.increment_success_service_use(amount=2)
        assert qs.check_user_quota() is False

    def test_should_check_user_mapzen_geocoder_quota_correctly(self):
        qs = self.__build_geocoder_quota_service('test_user', service='mapzen')
        qs.increment_success_service_use()
        assert qs.check_user_quota() is True
        qs.increment_success_service_use(amount=1500000)
        assert qs.check_user_quota() is False

    def test_should_check_org_mapzen_geocoder_quota_correctly(self):
        qs = self.__build_geocoder_quota_service('test_user', orgname='testorg',
                                                service='mapzen')
        qs.increment_success_service_use()
        assert qs.check_user_quota() is True
        qs.increment_success_service_use(amount=1500000)
        assert qs.check_user_quota() is False

    def test_should_check_user_routing_quota_correctly(self):
        qs = self.__build_routing_quota_service('test_user')
        qs.increment_success_service_use()
        assert qs.check_user_quota() is True
        qs.increment_success_service_use(amount=1500000)
        assert qs.check_user_quota() is False

    def test_should_check_org_routing_quota_correctly(self):
        qs = self.__build_routing_quota_service('test_user', orgname='testorg')
        qs.increment_success_service_use()
        assert qs.check_user_quota() is True
        qs.increment_success_service_use(amount=1500000)
        assert qs.check_user_quota() is False

    def __prepare_quota_service(self, username, quota, service, orgname,
                                soft_limit, end_date):
        test_helper.build_redis_user_config(self.redis_conn, username,
                                            quota=quota, service=service,
                                            soft_limit=soft_limit,
                                            end_date=end_date)
        if orgname:
            test_helper.build_redis_org_config(self.redis_conn, orgname,
                                               quota=quota, end_date=end_date)
        self._plpy_mock = test_helper.build_plpy_mock()

    def __build_geocoder_quota_service(self, username, quota=100,
                                       service='heremaps', orgname=None,
                                       soft_limit=False,
                                       end_date=datetime.today()):
        self.__prepare_quota_service(username, quota, service, orgname,
                                     soft_limit, end_date)
        geocoder_config = GeocoderConfig(self.redis_conn, self._plpy_mock,
                                         username, orgname)
        return QuotaService(geocoder_config, redis_connection=self.redis_conn)

    def __build_routing_quota_service(self, username, quota=100,
                                      service='routing_mapzen', orgname=None,
                                      soft_limit=False,
                                      end_date=datetime.today()):
        self.__prepare_quota_service(username, quota, service, orgname,
                                     soft_limit, end_date)
        routing_config = RoutingConfig(self.redis_conn, self._plpy_mock,
                                       username, orgname)
        return QuotaService(routing_config, redis_connection=self.redis_conn)