# vim: tabstop=4 shiftwidth=4 softtabstop=4

#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.


import os

import unittest
import mox

from nose.plugins.attrib import attr

from heat.common import context
from heat.common import exception
from heat.common import template_format
from heat.engine import properties
from heat.engine.resources.quantum import net
from heat.engine.resources.quantum.quantum import QuantumResource as qr
from heat.engine import parser


class FakeQuantum():

    def create_network(self, name):
        return {"network": {
            "status": "ACTIVE",
            "subnets": [],
            "name": "name",
            "admin_state_up": False,
            "shared": False,
            "tenant_id": "c1210485b2424d48804aad5d39c61b8f",
            "id": "fc68ea2c-b60b-4b4f-bd82-94ec81110766"
        }}

    def show_network(self, id):
        return {"network": {
            "status": "ACTIVE",
            "subnets": [],
            "name": "name",
            "admin_state_up": False,
            "shared": False,
            "tenant_id": "c1210485b2424d48804aad5d39c61b8f",
            "id": "fc68ea2c-b60b-4b4f-bd82-94ec81110766"
        }}


@attr(tag=['unit', 'resource'])
@attr(speed='fast')
class QuantumTest(unittest.TestCase):
    def setUp(self):
        self.m = mox.Mox()
        self.m.StubOutWithMock(net.Net, 'quantum')

    def tearDown(self):
        self.m.UnsetStubs()
        print "QuantumTest teardown complete"

    def load_template(self):
        self.path = os.path.dirname(os.path.realpath(__file__)).\
            replace('heat/tests', 'templates')
        f = open("%s/Quantum.template" % self.path)
        t = template_format.parse(f.read())
        f.close()
        return t

    def parse_stack(self, t):
        ctx = context.RequestContext.from_dict({
            'tenant': 'test_tenant',
            'username': 'test_username',
            'password': 'password',
            'auth_url': 'http://localhost:5000/v2.0'})
        stack_name = 'test_stack'
        tmpl = parser.Template(t)
        params = parser.Parameters(stack_name, tmpl,
                                   {'external_network': 'abcd1234'})
        stack = parser.Stack(ctx, stack_name, tmpl, params)

        return stack

    def create_net(self, t, stack, resource_name):
        resource = net.Net('test_net',
                                      t['Resources'][resource_name],
                                      stack)
        self.assertEqual(None, resource.create())
        self.assertEqual(net.Net.CREATE_COMPLETE, resource.state)
        return resource

    def test_validate_properties(self):
        vs = {'router:external': True}
        data = {
            'admin_state_up': False,
            'value_specs': vs
        }
        p = properties.Properties(net.Net.properties_schema, data)
        self.assertEqual(None, qr.validate_properties(p))

        vs['shared'] = True
        self.assertEqual('shared not allowed in value_specs',
            qr.validate_properties(p))
        vs.pop('shared')

        vs['name'] = 'foo'
        self.assertEqual('name not allowed in value_specs',
            qr.validate_properties(p))
        vs.pop('name')

        vs['tenant_id'] = '1234'
        self.assertEqual('tenant_id not allowed in value_specs',
            qr.validate_properties(p))
        vs.pop('tenant_id')

        vs['foo'] = '1234'
        self.assertEqual(None, qr.validate_properties(p))

    def test_prepare_properties(self):
        data = {
            'admin_state_up': False,
            'value_specs': {'router:external': True}
        }
        p = properties.Properties(net.Net.properties_schema, data)
        props = qr.prepare_properties(p, 'resource_name')
        self.assertEqual({
            'name': 'resource_name',
            'router:external': True,
            'admin_state_up': False
        }, props)

    def test_net(self):
        fq = FakeQuantum()
        net.Net.quantum().MultipleTimes().AndReturn(fq)

        self.m.ReplayAll()
        t = self.load_template()
        stack = self.parse_stack(t)
        resource = self.create_net(t, stack, 'network')

        resource.validate()

        ref_id = resource.FnGetRefId()
        self.assertEqual('fc68ea2c-b60b-4b4f-bd82-94ec81110766', ref_id)

        self.assertEqual('ACTIVE', resource.FnGetAtt('status'))
        try:
            resource.FnGetAtt('Foo')
            raise Exception('Expected InvalidTemplateAttribute')
        except exception.InvalidTemplateAttribute:
            pass

        self.assertEqual('fc68ea2c-b60b-4b4f-bd82-94ec81110766',
            resource.FnGetAtt('id'))

        self.assertEqual(net.Net.UPDATE_REPLACE, resource.handle_update())

        resource.delete()
        self.m.VerifyAll()