Added GildedRose for TypeScript

TypeScript/app/gilded-rose.ts

@@ -0,0 +1,69 @@
+export class Item {
+    name: string;
+    sellIn: number;
+    quality: number;
+
+    constructor(name, sellIn, quality) {
+        this.name = name;
+        this.sellIn = sellIn;
+        this.quality = quality;
+    }
+}
+
+export class GildedRose {
+    items: Array<Item>;
+
+    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 to a TAFKAL80ETC concert') {
+                if (this.items[i].quality > 0) {
+                    if (this.items[i].name != 'Sulfuras, Hand of Ragnaros') {
+                        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 to a TAFKAL80ETC concert') {
+                        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, Hand of Ragnaros') {
+                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 to a TAFKAL80ETC concert') {
+                        if (this.items[i].quality > 0) {
+                            if (this.items[i].name != 'Sulfuras, Hand of Ragnaros') {
+                                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;
+    }
+}