#!/usr/bin/env python
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you 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.
'''
# guava uses nfs storage, before setting up make sure
#     * optionally turn off stats collectors
#     * expunge.delay and expunge.interval are 60s
'''

from optparse import OptionParser
from configGenerator import *
import random


def getGlobalSettings():
    global_settings = {'expunge.delay': '60',
                       'expunge.interval': '60',
                       'expunge.workers': '3',
                       'workers': '10',
                       'use.user.concentrated.pod.allocation': 'true',
                       'vm.allocation.algorithm': 'random',
                       'vm.op.wait.interval': '5',
                       'guest.domain.suffix': 'guava.simulator',
                       'instance.name': 'TEST',
                       'direct.agent.load.size': '1000',
                       'default.page.size': '10000',
                       'linkLocalIp.nums': '10',
                       'check.pod.cidrs': 'false',
                      }
    for k, v in global_settings.iteritems():
        cfg = configuration()
        cfg.name = k
        cfg.value = v
        yield cfg


def describeGuavaResources(dbnode='localhost', mshost='localhost'):
    zs = cloudstackConfiguration()
    numberofpods = 1

    clustersPerPod = 100
    hostsPerCluster = 10

    z = zone()
    z.dns1 = '4.2.2.2'
    z.dns2 = '192.168.110.254'
    z.internaldns1 = '10.91.28.6'
    z.internaldns2 = '192.168.110.254'
    z.name = 'Guava'
    z.networktype = 'Advanced'
    z.guestcidraddress = '10.1.1.0/24'
    z.vlan='100-3000'

    p = pod()
    p.name = 'POD1'
    p.gateway = '172.1.2.1'
    p.startip = '172.1.2.2'
    p.endip = '172.1.255.252'
    p.netmask = '255.255.0.0'

    v = iprange()
    v.vlan = 'untagged'
    v.startip = '172.2.1.2'
    v.endip = '172.2.255.252'
    v.gateway = '172.2.1.1'
    v.netmask = '255.255.0.0'

    curhost = 1
    for i in range(1, clustersPerPod + 1):
        c = cluster()
        c.clustername = 'POD1-CLUSTER' + str(i)
        c.hypervisor = 'Simulator'
        c.clustertype = 'CloudManaged'

        for j in range(1, hostsPerCluster + 1):
            h = host()
            h.username = 'root'
            h.password = 'password'
            h.url = 'http://sim/test-%d'%(curhost)
            c.hosts.append(h)
            curhost = curhost + 1

        ps = primaryStorage()
        ps.name = 'spool'+str(i)
        ps.url = 'nfs://172.16.24.32/export/path/'+str(i)
        c.primaryStorages.append(ps)
        p.clusters.append(c)


    secondary = secondaryStorage()
    secondary.url = 'nfs://172.16.25.32/secondary/path'

    z.pods.append(p)
    z.ipranges.append(v)
    z.secondaryStorages.append(secondary)
    zs.zones.append(z)

    '''Add mgt server'''
    mgt = managementServer()
    mgt.mgtSvrIp = mshost
    zs.mgtSvr.append(mgt)

    '''Add a database'''
    db = dbServer()
    db.dbSvr = opts.dbnode
    zs.dbSvr = db

    '''Add some configuration'''
    [zs.globalConfig.append(cfg) for cfg in getGlobalSettings()]

    ''''add loggers'''
    testClientLogger = logger()
    testClientLogger.name = 'TestClient'
    testClientLogger.file = '/var/log/testclient.log'

    testCaseLogger = logger()
    testCaseLogger.name = 'TestCase'
    testCaseLogger.file = '/var/log/testcase.log'

    zs.logger.append(testClientLogger)
    zs.logger.append(testCaseLogger)
    return zs


if __name__ == '__main__':
    parser = OptionParser()
    parser.add_option('-o', '--output', action='store', default='./guavaCfg', dest='output', help='the path where the json config file generated')
    parser.add_option('-d', '--dbnode', dest='dbnode', help='hostname/ip of the database node', action='store')
    parser.add_option('-m', '--mshost', dest='mshost', help='hostname/ip of management server', action='store')

    (opts, args) = parser.parse_args()
    cfg = describeGuavaResources(opts.dbnode, opts.mshost)
    generate_setup_config(cfg, opts.output)