import main
from modules import provision

class Provision:
    def __init__(self, register):
        register("provision", self.provision)

    def provision(self, addr, authed, data, obj, spl, success, failure, info, incUsage, length):
        if authed:
            if length == 4 or length == 3:
                if not spl[1] in main.relay.keys():
                    failure("No such relay: %s" % spl[1])
                    return
                if not spl[2] in main.alias.keys():
                    failure("No such alias: %s" % spl[2])
                    return
            if length == 4: # provision for relay, alias and network
                if not spl[3] in main.network.keys():
                    failure("No such network: %s" % spl[3])
                    return

                if "users" in main.relay[spl[1]]:
                    if not spl[2] in main.relay[spl[1]]["users"]:
                        failure("Relay %s not provisioned for alias %s" % (spl[1], spl[2]))
                        return
                else:
                        failure("Relay %s not provisioned for alias %s" % (spl[1], spl[2]))
                        return

                rtrn = provision.provisionRelayForNetwork(spl[1], spl[2], spl[3])
                if rtrn == "PROVISIONED":
                    failure("Relay %s already provisioned for network %s" % (spl[1], spl[3]))
                    return
                elif rtrn == "DUPLICATE":
                    failure("Instance with relay %s and alias %s already exists for network %s" % (spl[1], spl[2], spl[3]))
                elif rtrn:
                    success("Started provisioning network %s on relay %s for alias %s" % (spl[3], spl[1], spl[2]))
                    info("Instance name is %s" % rtrn)
                    return
                else:
                    failure("Failure while provisioning relay %s" % spl[1])
                    return
            if length == 3: # provision for relay and alias only
                rtrn = provision.provisionRelayForAlias(spl[1], spl[2])
                if rtrn == "PROVISIONED":
                    failure("Relay %s already provisioned for alias %s" % (spl[1], spl[2]))
                    return
                elif rtrn:
                    success("Started provisioning relay %s for alias %s" % (spl[1], spl[2]))
                    return
                else:
                    failure("Failure while provisioning relay %s" % spl[1])
                    return

            else:
                incUsage("provision")
                return
        else:
            incUsage(None)