Simplified every more

README.md

@@ -2,7 +2,7 @@
 
 This is the Gilded Rose kata in JavaScript with Jest.
 
-See `docs/GildedRoseRequirements-Simple.txt` for the business requirements.
+See `docs/GildedRoseRequirements.txt` for the business requirements.
 
 ## Getting started
 

advanced/src/demo-advanced.js

@@ -0,0 +1,29 @@
+
+const { Shop, Item } = require("./gilded_rose");
+
+const items = [
+  new Item("+5 Dexterity Vest", 10, 20),
+  new Item("Aged Brie", 2, 0),
+  new Item("Elixir of the Mongoose", 5, 7),
+  new Item("Sulfuras", 0, 80),
+  new Item("Sulfuras", -1, 80),
+  new Item("Backstage passes", 15, 20),
+  new Item("Backstage passes", 10, 49),
+  new Item("Backstage passes", 5, 49),
+
+  // This Conjured item does not work properly yet
+  new Item("Conjured Mana Cake", 3, 6),
+];
+
+const days = Number(process.argv[2]) || 3;
+const gildedRose = new Shop(items);
+
+console.log("Welcome to the Gilded Rose Demo!");
+console.log("================================")
+
+for (let day = 1; day <= days; day++) {
+  console.log(`\n-------- Day ${day} --------`);
+  console.log("name, sellIn, quality");
+  items.forEach(item => console.log(`${item.name}, ${item.sellIn}, ${item.quality}`));
+  gildedRose.updateQuality();
+}

advanced/src/gilded-rose-advanced.js

@@ -0,0 +1,67 @@
+class Item {
+  constructor(name, sellIn, quality){
+    this.name = name;
+    this.sellIn = sellIn;
+    this.quality = quality;
+  }
+}
+
+class Shop {
+  constructor(items=[]){
+    this.items = items;
+  }
+  updateQuality() {
+    for (let i = 0; i < this.items.length; i++) {
+      if (this.items[i].name != 'Aged Brie' && this.items[i].name != 'Backstage passes') {
+        if (this.items[i].quality > 0) {
+          if (this.items[i].name != 'Sulfuras') {
+            this.items[i].quality = this.items[i].quality - 1;
+          }
+        }
+      } else {
+        if (this.items[i].quality < 50) {
+          this.items[i].quality = this.items[i].quality + 1;
+          if (this.items[i].name == 'Backstage passes') {
+            if (this.items[i].sellIn < 11) {
+              if (this.items[i].quality < 50) {
+                this.items[i].quality = this.items[i].quality + 1;
+              }
+            }
+            if (this.items[i].sellIn < 6) {
+              if (this.items[i].quality < 50) {
+                this.items[i].quality = this.items[i].quality + 1;
+              }
+            }
+          }
+        }
+      }
+      if (this.items[i].name != 'Sulfuras') {
+        this.items[i].sellIn = this.items[i].sellIn - 1;
+      }
+      if (this.items[i].sellIn < 0) {
+        if (this.items[i].name != 'Aged Brie') {
+          if (this.items[i].name != 'Backstage passes') {
+            if (this.items[i].quality > 0) {
+              if (this.items[i].name != 'Sulfuras') {
+                this.items[i].quality = this.items[i].quality - 1;
+              }
+            }
+          } else {
+            this.items[i].quality = this.items[i].quality - this.items[i].quality;
+          }
+        } else {
+          if (this.items[i].quality < 50) {
+            this.items[i].quality = this.items[i].quality + 1;
+          }
+        }
+      }
+    }
+
+    return this.items;
+  }
+}
+
+module.exports = {
+  Item,
+  Shop
+}

docs/GildedRoseRequirements-Simple.txt

@@ -1,38 +0,0 @@
-======================================
-Gilded Rose Requirements Specification
-======================================
-
-Hi and welcome to team Gilded Rose. As you know, we are a small inn with a prime location in a
-prominent city ran by a friendly innkeeper named Allison. We also buy and sell only the finest goods.
-Unfortunately, our goods are constantly degrading in quality as they approach their sell by date. We
-have a system in place that updates our inventory for us. It was developed by a no-nonsense type named
-Leeroy, who has moved on to new adventures. Your task is to add the new feature to our system so that
-we can begin selling a new category of items. First an introduction to our system:
-
-	- All items have a SellIn value which denotes the number of days we have to sell the item
-	- All items have a Quality value which denotes how valuable the item is
-	- At the end of each day our system lowers both values for every item
-
-Pretty simple, right? Well this is where it gets interesting:
-
-	- Once the sell by date has passed, Quality degrades twice as fast
-	- The Quality of an item is never negative
-	- "Aged Brie" actually increases in Quality the older it gets
-	- The Quality of an item is never more than 50
-	- "Sulfuras", being a legendary item, never has to be sold or decreases in Quality
-	- "Backstage passes", like aged brie, increases in Quality as its SellIn value approaches;
-	Quality increases by 2 when there are 10 days or less and by 3 when there are 5 days or less but
-	Quality drops to 0 after the concert
-
-We have recently signed a supplier of conjured items. This requires an update to our system:
-
-	- "Conjured" items degrade in Quality twice as fast as normal items
-
-Feel free to make any changes to the UpdateQuality method and add any new code as long as everything
-still works correctly. However, do not alter the Item class or Items property as those belong to the
-goblin in the corner who will insta-rage and one-shot you as he doesn't believe in shared code
-ownership (you can make the UpdateQuality method and Items property static if you like, we'll cover
-for you).
-
-Just for clarification, an item can never have its Quality increase above 50, however "Sulfuras" is a
-legendary item and as such its Quality is 80 and it never alters.

docs/GildedRoseRequirements.txt

@@ -0,0 +1,14 @@
+======================================
+Gilded Rose Requirements Specification
+======================================
+
+Hi and welcome to team Gilded Rose. As you know, we are a small inn with a prime location in a
+prominent city ran by a friendly innkeeper named Allison. We also buy and sell only the finest goods.
+Unfortunately, our goods are constantly degrading in quality as they approach their sell by date. We
+have a system in place that updates our inventory for us. It was developed by a no-nonsense type named
+Leeroy, who has moved on to new adventures. Your task is to add the new feature to our system so that
+we can begin selling a new category of items. First an introduction to our system:
+
+	- All items have a SellIn value which denotes the number of days we have to sell the item
+	- All items have a Quality value which denotes how valuable the item is
+	- At the end of each day our system lowers both values for every item

src/demo.js

@@ -5,14 +5,6 @@ const items = [
   new Item("+5 Dexterity Vest", 10, 20),
   new Item("Aged Brie", 2, 0),
   new Item("Elixir of the Mongoose", 5, 7),
-  new Item("Sulfuras", 0, 80),
-  new Item("Sulfuras", -1, 80),
-  new Item("Backstage passes", 15, 20),
-  new Item("Backstage passes", 10, 49),
-  new Item("Backstage passes", 5, 49),
-
-  // This Conjured item does not work properly yet
-  new Item("Conjured Mana Cake", 3, 6),
 ];
 
 const days = Number(process.argv[2]) || 3;

src/gilded_rose.js

@@ -5,56 +5,18 @@ class Item {
     this.quality = quality;
   }
 }
-
 class Shop {
   constructor(items=[]){
     this.items = items;
   }
+  
   updateQuality() {
-    for (let i = 0; i < this.items.length; i++) {
-      if (this.items[i].name != 'Aged Brie' && this.items[i].name != 'Backstage passes') {
+    for (let i = 0; i < this.items.length; i++) { 
         if (this.items[i].quality > 0) {
-          if (this.items[i].name != 'Sulfuras') {
             this.items[i].quality = this.items[i].quality - 1;
-          }
         }
-      } else {
-        if (this.items[i].quality < 50) {
-          this.items[i].quality = this.items[i].quality + 1;
-          if (this.items[i].name == 'Backstage passes') {
-            if (this.items[i].sellIn < 11) {
-              if (this.items[i].quality < 50) {
-                this.items[i].quality = this.items[i].quality + 1;
-              }
-            }
-            if (this.items[i].sellIn < 6) {
-              if (this.items[i].quality < 50) {
-                this.items[i].quality = this.items[i].quality + 1;
-              }
-            }
-          }
-        }
-      }
-      if (this.items[i].name != 'Sulfuras') {
+
         this.items[i].sellIn = this.items[i].sellIn - 1;
-      }
-      if (this.items[i].sellIn < 0) {
-        if (this.items[i].name != 'Aged Brie') {
-          if (this.items[i].name != 'Backstage passes') {
-            if (this.items[i].quality > 0) {
-              if (this.items[i].name != 'Sulfuras') {
-                this.items[i].quality = this.items[i].quality - 1;
-              }
-            }
-          } else {
-            this.items[i].quality = this.items[i].quality - this.items[i].quality;
-          }
-        } else {
-          if (this.items[i].quality < 50) {
-            this.items[i].quality = this.items[i].quality + 1;
-          }
-        }
-      }
     }
 
     return this.items;