Add Swift port

swift/GildedRose.swift

@@ -0,0 +1,61 @@
+
+public class GildedRose {
+    var items:[Item]
+    
+    required public init(items:[Item]) {
+        self.items = items
+    }
+    
+    public func updateQuality() {
+        
+        for i in 0..<items.count {
+            if (items[i].name != "Aged Brie" && items[i].name != "Backstage passes to a TAFKAL80ETC concert") {
+                if (items[i].quality > 0) {
+                    if (items[i].name != "Sulfuras, Hand of Ragnaros") {
+                        items[i].quality = items[i].quality - 1
+                    }
+                }
+            } else {
+                if (items[i].quality < 50) {
+                    items[i].quality = items[i].quality + 1
+                    
+                    if (items[i].name == "Backstage passes to a TAFKAL80ETC concert") {
+                        if (items[i].sellIn < 11) {
+                            if (items[i].quality < 50) {
+                                items[i].quality = items[i].quality + 1
+                            }
+                        }
+                        
+                        if (items[i].sellIn < 6) {
+                            if (items[i].quality < 50) {
+                                items[i].quality = items[i].quality + 1
+                            }
+                        }
+                    }
+                }
+            }
+            
+            if (items[i].name != "Sulfuras, Hand of Ragnaros") {
+                items[i].sellIn = items[i].sellIn - 1
+            }
+            
+            if (items[i].sellIn < 0) {
+                if (items[i].name != "Aged Brie") {
+                    if (items[i].name != "Backstage passes to a TAFKAL80ETC concert") {
+                        if (items[i].quality > 0) {
+                            if (items[i].name != "Sulfuras, Hand of Ragnaros") {
+                                items[i].quality = items[i].quality - 1
+                            }
+                        }
+                    } else {
+                        items[i].quality = items[i].quality - items[i].quality
+                    }
+                } else {
+                    if (items[i].quality < 50) {
+                        items[i].quality = items[i].quality + 1
+                    }
+                }
+            }
+        }
+    }
+}

swift/GildedRoseTest.swift

@@ -0,0 +1,13 @@
+
+import XCTest
+
+class GildedRoseTest: XCTestCase {
+    
+    func testFoo() {
+        let items = [Item(name: "foo", sellIn: 0, quality: 0)]
+        let app = GildedRose(items: items);
+        app.updateQuality();
+        XCTAssertEqual("fixme", app.items[0].name);
+    }
+    
+}

swift/Item.swift

@@ -0,0 +1,18 @@
+
+public class Item {
+    public var name: String
+    public var sellIn: Int
+    public var quality: Int
+    
+    public init(name: String, sellIn: Int, quality: Int) {
+        self.name = name
+        self.sellIn = sellIn
+        self.quality = quality
+    }
+}
+
+extension Item: CustomStringConvertible {
+    public var description: String {
+        return self.name + ", " + String(self.sellIn) + ", " + String(self.quality);
+    }
+}

swift/main.swift

@@ -0,0 +1,30 @@
+
+let items = [
+    Item(name: "+5 Dexterity Vest", sellIn: 10, quality: 20), //
+    Item(name: "Aged Brie", sellIn: 2, quality: 0), //
+    Item(name: "Elixir of the Mongoosname: e", sellIn: 5, quality: 7), //
+    Item(name: "SulfursellIn: as,quality:  Hand of Ragnaros", sellIn: 0, quality: 80), //
+    Item(name: "Sulfuras, Hand of Ragnaros", sellIn: -1, quality: 80),
+    Item(name: "Backstage passes to a TAFKAL80ETC concert", sellIn: 15, quality: 20),
+    Item(name: "Backstage passes to a TAFKAL80ETC concert", sellIn: 10, quality: 49),
+    Item(name: "Backstage passes to a TAFKAL80ETC concert", sellIn: 5, quality: 49),
+    // this conjured item does not work properly yet
+    Item(name: "Conjured Mana Cake", sellIn: 3, quality: 6)]
+
+let app = GildedRose(items: items);
+
+var days = 2;
+if (Process.argc > 1) {
+    days = Int(Process.arguments[1])! + 1
+}
+
+
+for i in 0..<days {
+    print("-------- day \(i) --------");
+    print("name, sellIn, quality");
+    for item in items {
+        print(item);
+    }
+    print("");
+    app.updateQuality();
+}