Joseph Yin - Ruby

award.rb

@@ -1 +1,102 @@
-Award = Struct.new(:name, :expires_in, :quality)
+class Award
+
+    @@award_type = [
+        'NORMAL ITEM',
+        'Blue Star',
+        'Blue First',
+        'Blue Compare',
+        'Blue Distinction Plus'
+    ]
+
+    attr_reader :name, :expires_in, :quality
+
+    def initialize(name, expires_in, quality)
+        @name = name
+        @expires_in = expires_in
+        @quality = quality
+    end
+
+    def update_quality
+        transaction(self.clone) do
+            downcase_name = name.downcase
+            raise "Error: Unknow Award Name -- #{@name}" if !@@award_type.map(&:downcase).include? downcase_name
+
+            send "update_#{downcase_name.gsub(' ', '_')}".to_sym
+        end
+    end
+
+    def expired?
+        @expires_in < 1
+    end
+
+    private
+
+    # NORMAL ITEM
+    def update_normal_item
+        decrease_quality(1)
+        decrease_quality(1) if expired?
+        decrease_expires_in
+    end
+
+    # Blue Star
+    def update_blue_star
+        decrease_quality(2)
+        decrease_quality(2) if expired?
+        decrease_expires_in
+    end
+
+    # Blue First
+    def update_blue_first
+        increase_quality(1)
+        increase_quality(1) if expired?
+        decrease_expires_in
+    end
+
+    # Blue Compare
+    def update_blue_compare
+        if expired?
+            decrease_quality(@quality)
+        elsif expires_in > 10
+            increase_quality(1)
+        elsif expires_in > 5
+            increase_quality(2)
+        else
+            increase_quality(3)
+        end
+        decrease_expires_in
+    end
+
+    # Blue Distinction Plus
+    def update_blue_distinction_plus
+        @quality = 80
+    end
+
+    def decrease_expires_in
+        @expires_in -= 1
+    end
+
+    def increase_quality(num)
+        quality_control { @quality += num }
+    end
+
+    def decrease_quality(num)
+        quality_control { @quality -= num }
+    end
+
+    def quality_control
+        yield
+        @quality = [[0, @quality].max, 50].min
+    end
+
+    def transaction(award_backup)
+        yield
+    rescue => e
+        puts e
+        @expires_in = award_backup.expires_in
+        @quality = award_backup.quality
+    end
+
+    # def method_missing(method_name, *args, &block)
+    #     update_normal_item
+    # end
+end

update_quality.rb

@@ -2,48 +2,6 @@
 
 def update_quality(awards)
   awards.each do |award|
-    if award.name != 'Blue First' && award.name != 'Blue Compare'
-      if award.quality > 0
-        if award.name != 'Blue Distinction Plus'
-          award.quality -= 1
-        end
-      end
-    else
-      if award.quality < 50
-        award.quality += 1
-        if award.name == 'Blue Compare'
-          if award.expires_in < 11
-            if award.quality < 50
-              award.quality += 1
-            end
-          end
-          if award.expires_in < 6
-            if award.quality < 50
-              award.quality += 1
-            end
-          end
-        end
-      end
-    end
-    if award.name != 'Blue Distinction Plus'
-      award.expires_in -= 1
-    end
-    if award.expires_in < 0
-      if award.name != 'Blue First'
-        if award.name != 'Blue Compare'
-          if award.quality > 0
-            if award.name != 'Blue Distinction Plus'
-              award.quality -= 1
-            end
-          end
-        else
-          award.quality = award.quality - award.quality
-        end
-      else
-        if award.quality < 50
-          award.quality += 1
-        end
-      end
-    end
+    award.update_quality
   end
 end

update_quality_spec.rb

@@ -177,7 +177,7 @@
       end
 
       context 'given a Blue Star award' do
-        before { pending }
+        # before { pending }
         let(:name) { 'Blue Star' }
         before { award.expires_in.should == initial_expires_in-1 }