From 0dc2301898f352cadf848f63214d35e87a8f0a7a Mon Sep 17 00:00:00 2001
From: Jesper <jesper@sanalabs.com>
Date: Wed, 13 Apr 2022 17:15:25 +0200
Subject: [PATCH] Extract decrementQuality

---
 TypeScript/app/gilded-rose.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/TypeScript/app/gilded-rose.ts b/TypeScript/app/gilded-rose.ts
index 441a15d6..3a9fe207 100644
--- a/TypeScript/app/gilded-rose.ts
+++ b/TypeScript/app/gilded-rose.ts
@@ -50,7 +50,7 @@ function updateItemQuality({name, quality, sellIn, ...rest}: Item): number {
     return itemCopy.quality
   }
 
-  return quality > 0 ? quality - 1 : quality
+  return decrementQuality({quality})
 }
 
 function sellInBelow0({ quality, name, sellIn }: Item): number {
@@ -62,6 +62,10 @@ function sellInBelow0({ quality, name, sellIn }: Item): number {
 
   if (name == 'Backstage passes to a TAFKAL80ETC concert') return 0
    
+  return decrementQuality({quality})
+}
+
+function decrementQuality({ quality }: Pick<Item, 'quality'>): number {
   return quality > 0 ? quality - 1 : quality
 }