Introduce ItemFactory in GildedRose::Store class

ruby/lib/gilded_rose/store.rb

@@ -1,12 +1,12 @@
 module GildedRose
   class Store
 
-    def initialize(items)
-      @items = items
+    def initialize(raw_items)
+      @raw_items = raw_items
     end
   
     def update_quality()
-      @items.each do |item|
+      items.each do |item|
         if item.name != "Aged Brie" and item.name != "Backstage passes to a TAFKAL80ETC concert"
           if item.quality > 0
             if item.name != "Sulfuras, Hand of Ragnaros"
@@ -52,6 +52,12 @@ module GildedRose
         end
       end
     end
+
+    def items
+      @items ||= @raw_items.map do |item|
+        ItemFactory.create_item(name: item.name, sell_in: item.sell_in, quality: item.quality)
+      end
+    end
   end
 
   class Item