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""" Tests for configuring Internal Load Balancing Rules.
"""
#Import Local Modules
from marvin.codes import FAILED
from marvin.cloudstackTestCase import *
from marvin.cloudstackAPI import *
from marvin.lib.utils import *
from marvin.lib.base import *
from marvin.lib.common import *
from nose.plugins.attrib import attr

class TestInternalLb(cloudstackTestCase):
    """Test Internal LB
    """

    @classmethod
    def setUpClass(cls):
        testClient = super(TestInternalLb, cls).getClsTestClient()
        cls.apiclient = testClient.getApiClient()
        cls.services = testClient.getParsedTestDataConfig()

        cls.zone = get_zone(cls.apiclient, testClient.getZoneForTests())
        cls.domain = get_domain(cls.apiclient)
        cls.service_offering = ServiceOffering.create(
            cls.apiclient,
            cls.services["service_offerings"]
        )
        cls.account = Account.create(cls.apiclient, services=cls.services["account"])
        cls.template = get_template(
            cls.apiclient,
            cls.zone.id,
            cls.services["ostype"]
        )

        if cls.template == FAILED:
            assert False, "get_template() failed to return template with description %s" % cls.services["ostype"]

        cls.debug("Successfully created account: %s, id: \
                   %s" % (cls.account.name,\
                          cls.account.id))
        cls.cleanup = [cls.account]

    @attr(tags=["smoke", "advanced"], required_hardware="true")
    def test_internallb(self):
        """Test create, delete, assign, remove of internal loadbalancer
        """   
           #1) Create and enable network offering with Internal Lb vm service
        self.networkOffering = NetworkOffering.create(self.apiclient, self.services["network_offering_internal_lb"], conservemode=False)
        #TODO: SIMENH:modify this test to verify lb rules by sending request from another tier
        self.networkOffering.update(self.apiclient, state="Enabled")

        #2) Create VPC and network in it
        vpcOffering = VpcOffering.list(self.apiclient,isdefault=True)
        self.assert_(vpcOffering is not None and len(vpcOffering)>0, "No VPC offerings found")
        self.services["vpc"] = {}
        self.services["vpc"]["name"] = "vpc-internallb"
        self.services["vpc"]["displaytext"] = "vpc-internallb"
        self.services["vpc"]["cidr"] = "10.1.1.0/24"
        vpc = VPC.create(
                apiclient=self.apiclient,
                services=self.services["vpc"],
                networkDomain="vpc.internallb",
                vpcofferingid=vpcOffering[0].id,
                zoneid=self.zone.id,
                account=self.account.name,
                domainid=self.domain.id
        )
        self.assert_(vpc is not None, "VPC creation failed")
        self.services["vpcnetwork"] = {}
        self.services["vpcnetwork"]["name"] = "vpcntwk"
        self.services["vpcnetwork"]["displaytext"] = "vpcntwk"
        ntwk = Network.create(
            apiclient=self.apiclient,
            services=self.services["vpcnetwork"],
            accountid=self.account.name,
            domainid=self.domain.id,
            networkofferingid=self.networkOffering.id,
            zoneid=self.zone.id,
            vpcid=vpc.id,
            gateway="10.1.1.1",
            netmask="255.255.255.192"
        )
        self.assertIsNotNone(ntwk, "Network failed to create")
        self.debug("Network %s created in VPC %s" %(ntwk.id, vpc.id))

        #3) Deploy a vm
        self.services["virtual_machine"]["networkids"] = ntwk.id
        vm = VirtualMachine.create(self.apiclient, services=self.services["virtual_machine"],
            templateid=self.template.id,
            zoneid=self.zone.id,
            accountid=self.account.name,
            domainid= self.domain.id,
            serviceofferingid=self.service_offering.id,
        )
        self.assert_(vm is not None, "VM failed to deploy")
        self.assert_(vm.state == 'Running', "VM is not running")
        self.debug("VM %s deployed in VPC %s" %(vm.id, vpc.id))
        
        #4) Create an Internal Load Balancer
        applb = ApplicationLoadBalancer.create(self.apiclient, services=self.services,
                name="lbrule",
                sourceport=22,
                instanceport=22,
                algorithm="roundrobin",
                scheme="internal",
                sourcenetworkid=ntwk.id,
                networkid=ntwk.id)

        #5) Assign the VM to the Internal Load Balancer
        applb.assign(self.apiclient, vms=[vm])

        #6) Remove the vm from the Interanl Load Balancer
        applb.remove(self.apiclient, vms=[vm])

        #7) Delete the Load Balancer
        applb.delete(self.apiclient)

    @classmethod
    def tearDownClass(cls):
        try:
            cleanup_resources(cls.apiclient, cls.cleanup)
        except Exception, e:
            raise Exception("Cleanup failed with %s" % e)