import mock
import requests

from wsme.exc import ClientSideError

from orm.services.customer_manager.cms_rest.controllers.v1.orm.group \
    import regions
from orm.services.customer_manager.cms_rest.logic.error_base import ErrorStatus
from orm.services.customer_manager.cms_rest.model import GroupModels
from orm.tests.unit.cms import FunctionalTest

group_logic_mock = None


class TestRegionController(FunctionalTest):
    def setUp(self):
        FunctionalTest.setUp(self)

        regions.authentication = mock.MagicMock()

        regions.GroupLogic = get_mock_group_logic

        regions.GroupLogic.return_error = 0

        regions.utils = mock.MagicMock()
        regions.utils.make_transid.return_value = 'some_trans_id'
        regions.utils.audit_trail.return_value = None
        regions.utils.make_uuid.return_value = 'some_uuid'

        regions.err_utils = mock.MagicMock()

    def tearDown(self):
        FunctionalTest.tearDown(self)

    def test_add_regions(self):
        # given
        requests.post = mock.MagicMock(return_value=ResponseMock(200))

        # when
        response = self.app.post_json('/v1/orm/groups/{group id}/regions/',
                                      REGION_JSON)

        # assert
        assert response.status_int == 200
        assert regions.utils.audit_trail.called
        assert group_logic_mock.add_regions.called

    def test_add_regions_fail(self):
        # given
        requests.post = mock.MagicMock()

        regions.GroupLogic.return_error = 1

        regions.err_utils.get_error = mock.MagicMock(
            return_value=ClientSideError("blabla", 500))

        # when
        response = self.app.post_json('/v1/orm/groups/{group id}/regions/',
                                      REGION_JSON, expect_errors=True)

        # assert
        self.assertEqual(response.status_int, 500)

    def test_add_regions_fail_bad(self):
        # given
        requests.post = mock.MagicMock()

        regions.GroupLogic.return_error = 2

        regions.err_utils.get_error = mock.MagicMock(
            return_value=ClientSideError("blabla", 404))

        # when
        response = self.app.post_json('/v1/orm/groups/{group id}/regions/',
                                      REGION_JSON, expect_errors=True)

        # assert
        self.assertEqual(response.status_int, 404)

    @mock.patch.object(regions, 'request')
    def test_delete_regions(self, request):
        # given
        requests.delete = mock.MagicMock(return_value=ResponseMock(200))
        request.headers = {'X-RANGER-Requester': "rds_resource_service_proxy"}
        # when
        response = self.app.delete(
            '/v1/orm/groups/{group id}/regions/{region_id}')

        # assert
        assert response.status_int == 204
        assert regions.utils.audit_trail.called
        assert group_logic_mock.delete_region.called

    def test_delete_regions_fail_bad(self):
        # given
        requests.delete = mock.MagicMock()

        regions.GroupLogic.return_error = 1

        regions.err_utils.get_error = mock.MagicMock(
            return_value=ClientSideError("blabla", 500))

        # when
        response = self.app.delete(
            '/v1/orm/groups/{group id}/regions/{region_id}',
            expect_errors=True)

        # assert
        self.assertEqual(response.status_int, 500)

    @mock.patch.object(regions, 'request')
    def test_delete_regions_fail(self, request):
        # given
        requests.delete = mock.MagicMock()

        regions.GroupLogic.return_error = 2
        request.headers = {'X-RANGER-Requester': "rds_resource_service_proxy"}
        regions.err_utils.get_error = mock.MagicMock(
            return_value=ClientSideError("blabla", 404))

        # when
        response = self.app.delete(
            '/v1/orm/groups/{group id}/regions/{region_id}',
            expect_errors=True)

        # assert
        self.assertEqual(response.status_int, 404)

    def test_get(self):
        # given
        requests.get = mock.MagicMock(return_value=ResponseMock(200))

        # when
        response = self.app.get('/v1/orm/groups/some_id/regions/some_id')

        # assert
        assert response.status_int == 200


def get_mock_group_logic():
    global group_logic_mock
    group_logic_mock = mock.MagicMock()

    if regions.GroupLogic.return_error == 0:
        res = GroupModels.RegionResultWrapper(transaction_id='1', regions=[])
        group_logic_mock.add_regions.return_value = res

    elif regions.CustomerLogic.return_error == 1:
        group_logic_mock.add_regions.side_effect = SystemError()
        group_logic_mock.delete_region.side_effect = SystemError()

    else:
        group_logic_mock.add_regions.side_effect = ErrorStatus(status_code=404)
        group_logic_mock.delete_region.side_effect = ErrorStatus(
            status_code=404)

    return group_logic_mock


class ResponseMock:
    def __init__(self, status_code=200):
        self.status_code = status_code


REGION_JSON = [
    {
        "name": "SAN1",
        "type": "single",
    }
]