module Fog
  module Compute
    class Ecloud
      class Vdc < Fog::Ecloud::Model

        identity :href

        ignore_attributes :xmlns, :xmlns_xsi, :xmlns_xsd

        attribute :name
        attribute :type
        attribute :description, :aliases => :Description
        attribute :other_links, :aliases => :Link
        attribute :compute_capacity, :aliases => :ComputeCapacity
        attribute :storage_capacity, :aliases => :StorageCapacity
        attribute :available_networks, :aliases => :AvailableNetworks, :squash => :Network
        attribute :resource_entities, :aliases => :ResourceEntities, :squash => :ResourceEntity
        attribute :deployed_vm_quota
        attribute :instantiated_vm_quota

        def public_ips
          @public_ips ||= collection_based_on_type("application/vnd.tmrk.ecloud.publicIpsList+xml")
        end

        def internet_services
          @internet_services ||= collection_based_on_type("application/vnd.tmrk.ecloud.internetServicesList+xml")
        end

        def backup_internet_services
          @backup_internet_services ||= collection_based_on_type("application/vnd.tmrk.ecloud.internetServicesList+xml", BackupInternetServices)
        end

        def networks
          @networks ||= Fog::Compute::Ecloud::Networks.
            new( :connection => connection,
                 :href => href )
        end

        def servers
          @servers ||= Fog::Compute::Ecloud::Servers.
            new( :connection => connection,
                 :href => href )
        end

        def tasks
          @tasks ||= Fog::Compute::Ecloud::Tasks.
            new( :connection => connection,
                 :href => href + "/tasksList" )
        end

        def catalog
          @catalog ||= collection_based_on_type("application/vnd.vmware.vcloud.catalog+xml")
        end

        def firewall_acls
          @firewall_acls ||= collection_based_on_type("application/vnd.tmrk.ecloud.firewallAclsList+xml")
        end

        private

        def collection_based_on_type(type, klass = nil)
          load_unless_loaded!
          if link = other_links.detect { |link| link[:type] == type }
            case type
            when "application/vnd.tmrk.ecloud.publicIpsList+xml"
              Fog::Compute::Ecloud::PublicIps
            when "application/vnd.tmrk.ecloud.internetServicesList+xml"
              klass || Fog::Compute::Ecloud::InternetServices
            when "application/vnd.vmware.vcloud.catalog+xml"
              Fog::Compute::Ecloud::Catalog
            when "application/vnd.tmrk.ecloud.firewallAclsList+xml"
              Fog::Compute::Ecloud::FirewallAcls
            end.new( :connection => connection, :href => link[:href] )
          else
            [ ]
          end
        end
      end
    end
  end
end