diff --git a/store.rb b/store.rb
index 3cb712e..263de5a 100644
--- a/store.rb
+++ b/store.rb
@@ -1 +1,96 @@
-# Yout little input goes here!
+class Store
+  attr_accessor :items_in_store, :total_sale
+  attr_reader :categories
+
+   def initialize
+     @total_sale = 0
+     @items_in_store = []
+     @categories = []
+   end
+ 
+  def items_sorted_by(indic, que)
+     if (que == :asc)
+        @items_in_store.sort { |a,b| a[indic] <=> b[indic]} 
+     else
+        @items_in_store.sort { |a,b| b[indic] <=> a[indic]}
+     end
+  end        
+
+  def unique_articles_in_category(cat)
+     articles = search(:category => cat) 
+     articles.map{ |item| item[:name] }.flatten.uniq
+  end
+
+  def categories 
+     @items_in_store.map{ |item| item[:category] }.flatten.uniq.sort
+  end
+
+  def search(args = {}) 
+     searchResults = @items_in_store.select{ |item| compare(args, item) }
+  end 
+
+  def compare(details, item)
+        if details.has_key?(:available)
+           return false if !(item.in_store > 0) && details[:available]
+           return false if  (item.in_store > 0) && !details[:available]
+        end
+        details.each { |k,v| 
+            valueAt_item = item[k]
+            if v.is_a? String 
+               return false if valueAt_item.to_s.downcase != v.to_s.downcase
+            elsif k != :available
+               return false if valueAt_item != v
+            end
+        }
+     true
+  end 
+
+  def import_items(filename)
+     require "json"                          #muuda stringilised võtmed objektideks
+     massiiv = JSON.parse(IO.read(filename), :symbolize_names => true)
+     massiiv.each do |asi|#lisab poe massiivi uue asja
+        @items_in_store.push(asi)
+     end
+  end#last in class Store
+
+
+  class Cart
+    attr_accessor :items, :store, :unique_items, :total_cost, :total_items
+
+    def initialize(args)
+      @store = args
+      @items = []
+      @unique_items = []
+      @total_cost = 0
+      @total_items = 0
+    end
+
+    def add_item(asi, kogusSoovitud=1)
+     kogusPoes = asi.in_store
+     kogus = [kogusPoes,kogusSoovitud].min
+     kogus.times {
+       @items.push(asi) 
+       @total_cost = (@total_cost + asi.price).round(2)
+       @total_items += 1
+     }
+     @unique_items.push(asi) if !@unique_items.include? asi
+    end
+ 
+    def checkout!
+       @items.each do |item|
+          storeIndex = @store.items_in_store.index(item)
+          @store.items_in_store[storeIndex][:in_store] -= 1
+          @store.total_sale = (@store.total_sale + @store.items_in_store[storeIndex].price).round(2)
+       end
+       @items.clear
+    end
+
+  end#end of Cart
+end#end of Store
+
+
+class Hash
+ def method_missing(n)
+   self[n.to_sym]
+ end
+end