# -*- coding: utf-8 -*-
"""
    :codeauthor: `Tyler Johnson <tjohnson@saltstack.com>`

    tests.unit.cloud.clouds.openstack_test
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"""

from __future__ import absolute_import, print_function, unicode_literals

from salt.cloud.clouds import openstack
from salt.utils import dictupdate
from tests.support.mixins import LoaderModuleMockMixin
from tests.support.mock import MagicMock, patch
from tests.support.unit import TestCase

# pylint: disable=confusing-with-statement


class MockImage(object):
    name = "image name"
    id = "image id"


class MockNode(object):
    name = "node name"
    id = "node id"
    flavor = MockImage()
    status = "node status"

    def __init__(self, image):
        self.image = image

    def __iter__(self):
        return iter(())


class MockConn(object):
    def __init__(self, image):
        self.node = MockNode(image)

    def get_image(self, *args, **kwargs):
        return self.node.image

    def get_flavor(self, *args, **kwargs):
        return self.node.flavor

    def get_server(self, *args, **kwargs):
        return self.node

    def list_servers(self, *args, **kwargs):
        return [self.node]


class OpenstackTestCase(TestCase, LoaderModuleMockMixin):
    """
    Unit TestCase for salt.cloud.clouds.openstack module.
    """

    def setup_loader_modules(self):
        return {
            openstack: {
                "__active_provider_name__": "",
                "__opts__": {
                    "providers": {
                        "my-openstack-cloud": {
                            "openstack": {
                                "auth": "daenerys",
                                "region_name": "westeros",
                                "cloud": "openstack",
                            }
                        }
                    }
                },
            }
        }

    def test_get_configured_provider_bad(self):
        with patch.dict(openstack.__opts__, {"providers": {}}):
            result = openstack.get_configured_provider()
            self.assertEqual(result, False)

    def test_get_configured_provider_auth(self):
        config = {
            "region_name": "westeros",
            "auth": "daenerys",
        }
        with patch.dict(
            openstack.__opts__,
            {"providers": {"my-openstack-cloud": {"openstack": config}}},
        ):
            result = openstack.get_configured_provider()
            self.assertEqual(config, result)

    def test_get_configured_provider_cloud(self):
        config = {
            "region_name": "westeros",
            "cloud": "foo",
        }
        with patch.dict(
            openstack.__opts__,
            {"providers": {"my-openstack-cloud": {"openstack": config}}},
        ):
            result = openstack.get_configured_provider()
            self.assertEqual(config, result)

    def test_get_dependencies(self):
        HAS_SHADE = (True, "Please install newer version of shade: >= 1.19.0")
        with patch("salt.cloud.clouds.openstack.HAS_SHADE", HAS_SHADE):
            result = openstack.get_dependencies()
            self.assertEqual(result, True)

    def test_get_dependencies_no_shade(self):
        HAS_SHADE = (False, "Install pypi module shade >= 1.19.0")
        with patch("salt.cloud.clouds.openstack.HAS_SHADE", HAS_SHADE):
            result = openstack.get_dependencies()
            self.assertEqual(result, False)

    def test_list_nodes_full_image_str(self):
        node_image = "node image"
        conn = MockConn(node_image)
        with patch("salt.cloud.clouds.openstack._get_ips", return_value=[]):
            ret = openstack.list_nodes_full(conn=conn)
            self.assertEqual(ret[conn.node.name]["image"], node_image)

    def test_list_nodes_full_image_obj(self):
        conn = MockConn(MockImage())
        with patch("salt.cloud.clouds.openstack._get_ips", return_value=[]):
            ret = openstack.list_nodes_full(conn=conn)
            self.assertEqual(ret[conn.node.name]["image"], MockImage.name)

    def test_show_instance(self):
        conn = MockConn(MockImage())
        with patch("salt.cloud.clouds.openstack._get_ips", return_value=[]):
            ret = openstack.show_instance(conn.node.name, conn=conn, call="action")
            self.assertEqual(ret["image"], MockImage.name)

    def test_request_instance_should_use_provided_connection_if_not_None(self):
        fake_conn = MagicMock()

        patch_get_conn = patch("salt.cloud.clouds.openstack.get_conn", autospec=True)
        patch_utils = patch.dict(
            openstack.__utils__,
            {"cloud.check_name": MagicMock(), "dictupdate.update": dictupdate.update},
        )
        patch_shade = patch.object(
            openstack, "shade.exc.OpenStackCloudException", Exception, create=True
        )

        with patch_get_conn as fake_get_conn, patch_utils, patch_shade:
            openstack.request_instance(
                vm_={"name": "fnord", "driver": "fnord"}, conn=fake_conn
            )

            fake_get_conn.assert_not_called()

    def test_request_instance_should_create_conn_if_provided_is_None(self):
        none_conn = None

        patch_get_conn = patch("salt.cloud.clouds.openstack.get_conn", autospec=True)
        patch_utils = patch.dict(
            openstack.__utils__,
            {"cloud.check_name": MagicMock(), "dictupdate.update": dictupdate.update},
        )
        patch_shade = patch.object(
            openstack, "shade.exc.OpenStackCloudException", Exception, create=True
        )

        with patch_get_conn as fake_get_conn, patch_utils, patch_shade:
            openstack.request_instance(
                vm_={"name": "fnord", "driver": "fnord"}, conn=none_conn
            )

            fake_get_conn.assert_called_once_with()

    # According to
    # https://docs.openstack.org/shade/latest/user/usage.html#shade.OpenStackCloud.create_server
    # the `network` parameter can be:
    # (optional) Network dict or name or ID to attach the server to.
    # Mutually exclusive with the nics parameter. Can also be be a list of
    # network names or IDs or network dicts.
    #
    # Here we're testing a normal dictionary
    def test_request_instance_should_be_able_to_provide_a_dictionary_for_network(self):
        fake_conn = MagicMock()
        expected_network = {"foo": "bar"}
        vm_ = {"name": "fnord", "driver": "fnord", "network": expected_network}
        patch_utils = patch.dict(
            openstack.__utils__,
            {"cloud.check_name": MagicMock(), "dictupdate.update": dictupdate.update},
        )
        with patch_utils:
            openstack.request_instance(vm_=vm_, conn=fake_conn)

            call = fake_conn.create_server.mock_calls[0]
            self.assertDictEqual(call.kwargs["network"], expected_network)

    # Here we're testing the list of dictionaries
    def test_request_instance_should_be_able_to_provide_a_list_of_dictionaries_for_network(
        self,
    ):
        fake_conn = MagicMock()
        expected_network = [{"foo": "bar"}, {"bang": "quux"}]
        vm_ = {"name": "fnord", "driver": "fnord", "network": expected_network}
        patch_utils = patch.dict(
            openstack.__utils__,
            {"cloud.check_name": MagicMock(), "dictupdate.update": dictupdate.update},
        )
        with patch_utils:
            openstack.request_instance(vm_=vm_, conn=fake_conn)

            call = fake_conn.create_server.mock_calls[0]
            assert call.kwargs["network"] == expected_network

    # Here we're testing for names/IDs
    def test_request_instance_should_be_able_to_provide_a_list_of_single_ids_or_names_for_network(
        self,
    ):
        fake_conn = MagicMock()
        expected_network = ["foo", "bar", "bang", "fnord1", "fnord2"]
        vm_ = {"name": "fnord", "driver": "fnord", "network": expected_network}
        patch_utils = patch.dict(
            openstack.__utils__,
            {"cloud.check_name": MagicMock(), "dictupdate.update": dictupdate.update},
        )
        with patch_utils:
            openstack.request_instance(vm_=vm_, conn=fake_conn)

            call = fake_conn.create_server.mock_calls[0]
            assert call.kwargs["network"] == expected_network
