# encoding: utf-8
# (c) 2011-2015 Martin Poljak (martin@poljak.cz)

require "json-rpc-objects/v11/alt/error"
require "json-rpc-objects/exceptions/invalid-code"

##
# Main JSON-RPC Objects module.
#

module JsonRpcObjects

    ##
    # Module of JSON-RPC 2.0.
    # @see http://groups.google.com/group/json-rpc/web/json-rpc-2-0
    #

    module V20

        ##
        # Error description object class for Response.
        #
        
        class Error < JsonRpcObjects::V11::Alt::Error
        
            ##
            # Holds link to its version module.
            #
            
            VERSION = JsonRpcObjects::V20

            ##
            # Indicates data member name.
            #
            
            DATA_MEMBER_NAME = :data
            
            ##
            # Checks correctness of the data.
            #
            
            def check!
                self.normalize!

                if ((-32768..-32000).include?(@code)) and not ((@code == -32700) or
                     ((-32603..-32600).include?(@code)) or ((-32099..-32000).include?(code)))

                    raise JsonRpcObjects::Exceptions::InvalidCode::new("Code is invalid because of reserved space.")
                end
            end

            ##
            # Renders data to output hash.
            # @return [Hash] with data of error
            #
            
            def output
                result = super()
                
                if result.include? "error"
                    result["data"] = result["error"]
                    result.delete("error")
                end
            
                return result
            end
            
            
            protected
            
            ##
            # Assigns error data.
            #
            
            def __assign_data(data)
                @data = data[:data]
                data.delete(:data)
                
                if @data.nil?
                    super(data)
                end
            end

        end
    end
end