module OrbitApp
    module Module
      module WidgetUtility
          Version = "0.1"

          module ClassMethods
            @@widgets = []

          def add(var)
            @@widgets << var
          end

          def all
            return @@widgets
          end
        end
      
        extend ClassMethods
        def self.included( other )
          other.extend( ClassMethods )
        end

        class WidgetSet
          attr_reader :widgets,:categories_query,:tags_query
          def initialize(&block)
            @widgets = []
            @default_widget = nil
            @categories_query = ''
            @tags_query = ''
            block.arity < 1 ? instance_eval(&block) : block.call(self) if block_given?
          end

          %w{categories_query tags_query}.each  do |field|
              define_method(field){|var| instance_variable_set( "@" + field, var)}
          end

          def get_categories
             eval(@categories_query) rescue nil
          end

          def  get_tags
            eval(@tags_query) rescue nil
          end

          def default_widget(&block)
            @default_widget  = DefaultWidget.new(&block)
          end

          def customize_widget(name,label,options ={})
            @widgets << Widget.new(name,label,options)
          end

          def to_module_app_format            
            hash = {}
            @widgets.collect{|t|  hash[t.name] = t.to_hash}
            hash["default_widget"]= DefaultWidget.get_interface_args unless @default_widget.blank?
            hash
          end

          def get_default_widget
            return @default_widget
          end

        end

        class DefaultWidget
          STYLE = ["typeA","typeB_style2","typeB_style3","typeB_style4","typeC"]

          def  initialize(&block)
            @query = nil
            @image = nil
             block.arity < 1 ? instance_eval(&block) : block.call(self) if block_given?
          end

          def self.get_interface_args
            #will need to work with design
            {:name=>"default_widget",:field=>nil,:label=>'label',:style=>STYLE}
          end

          def to_module_app_format
            {:query=>@query,:image=>@image} rescue nil
          end

          def query(var)
            @query = var
          end

          def image(var)
            @image = var
          end

        end

        class Widget
          attr_reader :name,:default_template,:fields

          def initialize(name,label,options ={})
            @name = name
            @fields = options[:fields] 
            @label = label
            @style= options[:style]
          end
          
          def to_hash
              {:name => @name,:fields=>@fields,:label=>@label,:style=>@style}
          end

          def finalize!

          end

          protected
          
        end# of widget
    end # of WidgetRegisition
  end # of Module
end # of OrbitApp