from __future__ import unicode_literals
from moto.core.exceptions import RESTError


class ELBClientError(RESTError):
    code = 400


class DuplicateTagKeysError(ELBClientError):

    def __init__(self, cidr):
        super(DuplicateTagKeysError, self).__init__(
            "DuplicateTagKeys",
            "Tag key was specified more than once: {0}"
            .format(cidr))


class LoadBalancerNotFoundError(ELBClientError):

    def __init__(self):
        super(LoadBalancerNotFoundError, self).__init__(
            "LoadBalancerNotFound",
            "The specified load balancer does not exist.")


class ListenerNotFoundError(ELBClientError):

    def __init__(self):
        super(ListenerNotFoundError, self).__init__(
            "ListenerNotFound",
            "The specified listener does not exist.")


class SubnetNotFoundError(ELBClientError):

    def __init__(self):
        super(SubnetNotFoundError, self).__init__(
            "SubnetNotFound",
            "The specified subnet does not exist.")


class TargetGroupNotFoundError(ELBClientError):

    def __init__(self):
        super(TooManyTagsError, self).__init__(
            "TargetGroupNotFound",
            "The specified target group does not exist.")


class TooManyTagsError(ELBClientError):

    def __init__(self):
        super(TooManyTagsError, self).__init__(
            "TooManyTagsError",
            "The quota for the number of tags that can be assigned to a load balancer has been reached")


class BadHealthCheckDefinition(ELBClientError):

    def __init__(self):
        super(BadHealthCheckDefinition, self).__init__(
            "ValidationError",
            "HealthCheck Target must begin with one of HTTP, TCP, HTTPS, SSL")


class DuplicateListenerError(ELBClientError):

    def __init__(self):
        super(DuplicateListenerError, self).__init__(
            "DuplicateListener",
            "A listener with the specified port already exists.")


class DuplicateLoadBalancerName(ELBClientError):

    def __init__(self):
        super(DuplicateLoadBalancerName, self).__init__(
            "DuplicateLoadBalancerName",
            "A load balancer with the specified name already exists.")


class DuplicateTargetGroupName(ELBClientError):

    def __init__(self):
        super(DuplicateTargetGroupName, self).__init__(
            "DuplicateTargetGroupName",
            "A target group with the specified name already exists.")


class InvalidTargetError(ELBClientError):

    def __init__(self):
        super(InvalidTargetError, self).__init__(
            "InvalidTarget",
            "The specified target does not exist or is not in the same VPC as the target group.")


class EmptyListenersError(ELBClientError):

    def __init__(self):
        super(EmptyListenersError, self).__init__(
            "ValidationError",
            "Listeners cannot be empty")