From 5edd974d0f2c6e92c613599646bd99e23f28cafa Mon Sep 17 00:00:00 2001
From: Denys <pedan.denys@gmail.com>
Date: Sun, 11 May 2025 11:56:40 +1200
Subject: [PATCH] downGradeQuality func

---
 .../main/kotlin/com/gildedrose/GildedRose.kt    | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/Kotlin/src/main/kotlin/com/gildedrose/GildedRose.kt b/Kotlin/src/main/kotlin/com/gildedrose/GildedRose.kt
index 38a92990..220e7dca 100644
--- a/Kotlin/src/main/kotlin/com/gildedrose/GildedRose.kt
+++ b/Kotlin/src/main/kotlin/com/gildedrose/GildedRose.kt
@@ -11,9 +11,7 @@ class GildedRose(var items: List<Item>) {
                 items[i].name != "Backstage passes to a TAFKAL80ETC concert" &&
                 items[i].name != "Sulfuras, Hand of Ragnaros"
             ) {
-                if (items[i].quality > 0) {
-                    items[i].quality -= 1
-                }
+                items[i].quality = downGradeQuality(items[i].quality)
             } else {
                 items[i].quality = upgradeQuality(items[i].quality)
 
@@ -40,14 +38,14 @@ class GildedRose(var items: List<Item>) {
                     "Aged Brie" -> {
                         items[i].quality = upgradeQuality(items[i].quality)
                     }
+
                     "Backstage passes to a TAFKAL80ETC concert" -> {
                         items[i].quality -= items[i].quality
                     }
+
                     else -> {
-                        if (items[i].quality > 0) {
-                            if (items[i].name != "Sulfuras, Hand of Ragnaros") {
-                                items[i].quality -= 1
-                            }
+                        if (items[i].name != "Sulfuras, Hand of Ragnaros") {
+                            items[i].quality = downGradeQuality(items[i].quality)
                         }
                     }
                 }
@@ -55,6 +53,11 @@ class GildedRose(var items: List<Item>) {
         }
     }
 
+    private fun downGradeQuality(quality: Int): Int {
+        if (quality > 0) return quality - 1
+        return quality
+    }
+
     private fun upgradeQuality(quality: Int): Int {
         if (quality < 50) return quality + 1
         return quality