# -*- coding: utf-8 -*-
"""
    :codeauthor: :email:`Alexandru Bleotu <alexandru.bleotu@morganstanley.com>`

    Tests for esxcluster proxy
"""

# Import Python Libs
from __future__ import absolute_import, print_function, unicode_literals

import salt.exceptions

# Import Salt Libs
import salt.proxy.esxcluster as esxcluster
from salt.config.schemas.esxcluster import EsxclusterProxySchema

# Import Salt Testing Libs
from tests.support.mixins import LoaderModuleMockMixin
from tests.support.mock import MagicMock, patch
from tests.support.unit import TestCase, skipIf

# Import external libs
try:
    import jsonschema

    HAS_JSONSCHEMA = True
except ImportError:
    HAS_JSONSCHEMA = False


@skipIf(not HAS_JSONSCHEMA, "jsonschema is required")
class InitTestCase(TestCase, LoaderModuleMockMixin):
    """Tests for salt.proxy.esxcluster.init"""

    def setup_loader_modules(self):
        return {
            esxcluster: {
                "__virtual__": MagicMock(return_value="esxcluster"),
                "DETAILS": {},
                "__pillar__": {},
            }
        }

    def setUp(self):
        self.opts_userpass = {
            "proxy": {
                "proxytype": "esxcluster",
                "vcenter": "fake_vcenter",
                "datacenter": "fake_dc",
                "cluster": "fake_cluster",
                "mechanism": "userpass",
                "username": "fake_username",
                "passwords": ["fake_password"],
                "protocol": "fake_protocol",
                "port": 100,
            }
        }
        self.opts_sspi = {
            "proxy": {
                "proxytype": "esxcluster",
                "vcenter": "fake_vcenter",
                "datacenter": "fake_dc",
                "cluster": "fake_cluster",
                "mechanism": "sspi",
                "domain": "fake_domain",
                "principal": "fake_principal",
                "protocol": "fake_protocol",
                "port": 100,
            }
        }
        patches = (
            (
                "salt.proxy.esxcluster.merge",
                MagicMock(return_value=self.opts_sspi["proxy"]),
            ),
        )
        for mod, mock in patches:
            patcher = patch(mod, mock)
            patcher.start()
            self.addCleanup(patcher.stop)

    def test_merge(self):
        mock_pillar_proxy = MagicMock()
        mock_opts_proxy = MagicMock()
        mock_merge = MagicMock(return_value=self.opts_sspi["proxy"])
        with patch.dict(esxcluster.__pillar__, {"proxy": mock_pillar_proxy}):
            with patch("salt.proxy.esxcluster.merge", mock_merge):
                esxcluster.init(opts={"proxy": mock_opts_proxy})
        mock_merge.assert_called_once_with(mock_opts_proxy, mock_pillar_proxy)

    def test_esxcluster_schema(self):
        mock_json_validate = MagicMock()
        serialized_schema = EsxclusterProxySchema().serialize()
        with patch("salt.proxy.esxcluster.jsonschema.validate", mock_json_validate):
            esxcluster.init(self.opts_sspi)
        mock_json_validate.assert_called_once_with(
            self.opts_sspi["proxy"], serialized_schema
        )

    def test_invalid_proxy_input_error(self):
        with patch(
            "salt.proxy.esxcluster.jsonschema.validate",
            MagicMock(
                side_effect=jsonschema.exceptions.ValidationError("Validation Error")
            ),
        ):
            with self.assertRaises(salt.exceptions.InvalidConfigError) as excinfo:
                esxcluster.init(self.opts_userpass)
        self.assertEqual(excinfo.exception.strerror, "Validation Error")

    def test_no_username(self):
        opts = self.opts_userpass.copy()
        del opts["proxy"]["username"]
        with patch(
            "salt.proxy.esxcluster.merge", MagicMock(return_value=opts["proxy"])
        ):
            with self.assertRaises(salt.exceptions.InvalidConfigError) as excinfo:
                esxcluster.init(opts)
        self.assertEqual(
            excinfo.exception.strerror,
            "Mechanism is set to 'userpass', but no "
            "'username' key found in proxy config.",
        )

    def test_no_passwords(self):
        opts = self.opts_userpass.copy()
        del opts["proxy"]["passwords"]
        with patch(
            "salt.proxy.esxcluster.merge", MagicMock(return_value=opts["proxy"])
        ):
            with self.assertRaises(salt.exceptions.InvalidConfigError) as excinfo:
                esxcluster.init(opts)
        self.assertEqual(
            excinfo.exception.strerror,
            "Mechanism is set to 'userpass', but no "
            "'passwords' key found in proxy config.",
        )

    def test_no_domain(self):
        opts = self.opts_sspi.copy()
        del opts["proxy"]["domain"]
        with patch(
            "salt.proxy.esxcluster.merge", MagicMock(return_value=opts["proxy"])
        ):
            with self.assertRaises(salt.exceptions.InvalidConfigError) as excinfo:
                esxcluster.init(opts)
        self.assertEqual(
            excinfo.exception.strerror,
            "Mechanism is set to 'sspi', but no " "'domain' key found in proxy config.",
        )

    def test_no_principal(self):
        opts = self.opts_sspi.copy()
        del opts["proxy"]["principal"]
        with patch(
            "salt.proxy.esxcluster.merge", MagicMock(return_value=opts["proxy"])
        ):
            with self.assertRaises(salt.exceptions.InvalidConfigError) as excinfo:
                esxcluster.init(opts)
        self.assertEqual(
            excinfo.exception.strerror,
            "Mechanism is set to 'sspi', but no "
            "'principal' key found in proxy config.",
        )

    def test_find_credentials(self):
        mock_find_credentials = MagicMock(
            return_value=("fake_username", "fake_password")
        )
        with patch(
            "salt.proxy.esxcluster.merge",
            MagicMock(return_value=self.opts_userpass["proxy"]),
        ):
            with patch("salt.proxy.esxcluster.find_credentials", mock_find_credentials):
                esxcluster.init(self.opts_userpass)
        mock_find_credentials.assert_called_once_with()

    def test_details_userpass(self):
        mock_find_credentials = MagicMock(
            return_value=("fake_username", "fake_password")
        )
        with patch(
            "salt.proxy.esxcluster.merge",
            MagicMock(return_value=self.opts_userpass["proxy"]),
        ):
            with patch("salt.proxy.esxcluster.find_credentials", mock_find_credentials):
                esxcluster.init(self.opts_userpass)
        self.assertDictEqual(
            esxcluster.DETAILS,
            {
                "vcenter": "fake_vcenter",
                "datacenter": "fake_dc",
                "cluster": "fake_cluster",
                "mechanism": "userpass",
                "username": "fake_username",
                "password": "fake_password",
                "passwords": ["fake_password"],
                "protocol": "fake_protocol",
                "port": 100,
            },
        )

    def test_details_sspi(self):
        esxcluster.init(self.opts_sspi)
        self.assertDictEqual(
            esxcluster.DETAILS,
            {
                "vcenter": "fake_vcenter",
                "datacenter": "fake_dc",
                "cluster": "fake_cluster",
                "mechanism": "sspi",
                "domain": "fake_domain",
                "principal": "fake_principal",
                "protocol": "fake_protocol",
                "port": 100,
            },
        )