From 72f0a797bc8219b620572f1408ce5329562366b8 Mon Sep 17 00:00:00 2001
From: cammp325 <108045774+cammp325@users.noreply.github.com>
Date: Mon, 4 Jul 2022 14:21:44 -0400
Subject: [PATCH] message

---
 .../main/java/com/gildedrose/GildedRose.java  | 87 ++++++++++---------
 1 file changed, 45 insertions(+), 42 deletions(-)

diff --git a/Java/src/main/java/com/gildedrose/GildedRose.java b/Java/src/main/java/com/gildedrose/GildedRose.java
index 069fc555..041584a1 100644
--- a/Java/src/main/java/com/gildedrose/GildedRose.java
+++ b/Java/src/main/java/com/gildedrose/GildedRose.java
@@ -5,6 +5,8 @@ class GildedRose {
     public static final String AGED_BRIE = "Aged Brie";
     public static final String SULFURAS = "Sulfuras, Hand of Ragnaros";
     public static final String BACKSTAGE = "Backstage passes to a TAFKAL80ETC concert";
+    public static final String CONJURED = "Conjured Mana Cake";
+    private Item[] items;
 
     private Item[] items;
 
@@ -12,58 +14,59 @@ class GildedRose {
         this.items = items;
     }
 
-    public void updateQuality() {
+    public void updateQuality() {        
         for (Item item : items) {
             updateItemQuality(item);
         }
     }
 
     private void updateItemQuality(Item item) {
-            if (!item.name.equals(AGED_BRIE)
-                    && !item.name.equals(BACKSTAGE)) {
-                if (item.quality > 0) {
-                    if (!item.name.equals(SULFURAS)) {
-                        adjustQuality(item, -1);
-                    }
-                }
-            } else {
-                adjustQuality(item, 1);
+        boolean isExpired = item.sellIn < 1;
+        int degradeRate = determineDegradeRate(item, isExpired);
+        boolean doesDegrade = !item.name.equals(AGED_BRIE) && !item.name.equals(BACKSTAGE) && !item.name.equals(SULFURAS);
+        boolean hasSellBy = !item.name.equals(SULFURAS);
 
-                if (item.name.equals(BACKSTAGE)) {
-                    if (item.sellIn < 11) {
-                        adjustQuality(item, 1);
-                    }
-
-                    if (item.sellIn < 6) {
-                        adjustQuality(item, 1);
-                    }
-                }
-            }
-
-            if (!item.name.equals(SULFURAS)) {
-                item.sellIn = item.sellIn - 1;
-            }
-
-            if (item.sellIn < 0) {
-                if (!item.name.equals(AGED_BRIE)) {
-                    if (!item.name.equals(BACKSTAGE)) {
-                        if (!item.name.equals(SULFURAS)) {
-                            adjustQuality(item, -1);
-                        }
-                    } else {
-                        item.quality = item.quality - item.quality;
-                    }
-                } else {
-                    int adjustment = 1;
-                    adjustQuality(item, adjustment);
-                }
-            }
+        if (doesDegrade) {
+            adjustQuality(item, degradeRate);
         }
 
-    public void adjustQuality(Item item, int adjustment) {
+        if (item.name.equals(AGED_BRIE)) {
+            int adjustment = isExpired ? 2 : 1;
+            adjustQuality(item, adjustment);
+        } 
+
+        if (item.name.equals(BACKSTAGE)) {
+            updateBackStagePass(item, isExpired);
+        }
+
+        if (hasSellBy) {
+            item.sellIn = item.sellIn - 1;
+        }
+    }
+
+    private void updateBackStagePass(Item item, boolean isExpired) {
+        adjustQuality(item, 1);
+        if (item.sellIn < 11) {
+            adjustQuality(item, 1);
+        }
+
+        if (item.sellIn < 6) {
+            adjustQuality(item, 1);
+        }
+        if (isExpired) {
+            item.quality = item.quality - item.quality;
+        } 
+    }
+
+    private int determineDegradeRate(Item item, boolean isExpired) {
+        int baseDegradeRate = item.name.equals(CONJURED) ? -2 : -1;
+        return isExpired ? baseDegradeRate * 2 : baseDegradeRate;
+    }
+
+    private void adjustQuality(Item item, int adjustment) {
         int newQuality = item.quality + adjustment;
-        boolean isValid = newQuality <= 50 && newQuality >= 0;
-        if (isValid) {
+        boolean isInvalidRange = newQuality <= 50 && newQuality >= 0;
+        if (isInvalidRange) {
             item.quality = newQuality;
         }
     }