From d32604ed1ab794882433e89da25d52656e38d316 Mon Sep 17 00:00:00 2001
From: Ufuk Sakar <ufuk.sakar-e@maf.ae>
Date: Fri, 2 Aug 2024 16:07:25 +0300
Subject: [PATCH] feat: conjured implementation

---
 php/src/GildedRose.php | 137 +++++++++++++++++++++++++++--------------
 1 file changed, 91 insertions(+), 46 deletions(-)

diff --git a/php/src/GildedRose.php b/php/src/GildedRose.php
index db81ee3b..9da058fc 100644
--- a/php/src/GildedRose.php
+++ b/php/src/GildedRose.php
@@ -11,57 +11,102 @@ final class GildedRose
      */
     public function __construct(
         private array $items
-    ) {
+    )
+    {
     }
 
     public function updateQuality(): void
     {
         foreach ($this->items as $item) {
-            if ($item->name != 'Aged Brie' and $item->name != 'Backstage passes to a TAFKAL80ETC concert') {
-                if ($item->quality > 0) {
-                    if ($item->name != 'Sulfuras, Hand of Ragnaros') {
-                        $item->quality = $item->quality - 1;
-                    }
-                }
-            } else {
-                if ($item->quality < 50) {
-                    $item->quality = $item->quality + 1;
-                    if ($item->name == 'Backstage passes to a TAFKAL80ETC concert') {
-                        if ($item->sellIn < 11) {
-                            if ($item->quality < 50) {
-                                $item->quality = $item->quality + 1;
-                            }
-                        }
-                        if ($item->sellIn < 6) {
-                            if ($item->quality < 50) {
-                                $item->quality = $item->quality + 1;
-                            }
-                        }
-                    }
-                }
-            }
-
-            if ($item->name != 'Sulfuras, Hand of Ragnaros') {
-                $item->sellIn = $item->sellIn - 1;
-            }
-
-            if ($item->sellIn < 0) {
-                if ($item->name != 'Aged Brie') {
-                    if ($item->name != 'Backstage passes to a TAFKAL80ETC concert') {
-                        if ($item->quality > 0) {
-                            if ($item->name != 'Sulfuras, Hand of Ragnaros') {
-                                $item->quality = $item->quality - 1;
-                            }
-                        }
-                    } else {
-                        $item->quality = $item->quality - $item->quality;
-                    }
-                } else {
-                    if ($item->quality < 50) {
-                        $item->quality = $item->quality + 1;
-                    }
-                }
-            }
+            $this->updateItemQuality($item);
         }
     }
+
+    private function updateItemQuality($item): void
+    {
+        if ($item->name == 'Sulfuras, Hand of Ragnaros') {
+            return; // Legendary item, no changes needed
+        }
+
+        $this->decreaseSellIn($item);
+
+        switch ($item->name) {
+            case 'Aged Brie':
+                $this->updateAgedBrie($item);
+                break;
+            case 'Backstage passes to a TAFKAL80ETC concert':
+                $this->updateBackstagePasses($item);
+                break;
+            case 'Conjured Mana Cake':
+                $this->updateConjured($item);
+                break;
+            default:
+                $this->updateNormalItem($item);
+        }
+
+        $this->ensureQualityInRange($item);
+    }
+    private function decreaseSellIn($item): void
+    {
+        $item->sellIn--;
+    }
+
+    private function updateAgedBrie($item): void
+    {
+        $this->increaseQuality($item);
+        if ($item->sellIn < 0) {
+            $this->increaseQuality($item);
+        }
+    }
+
+    private function updateBackstagePasses($item): void
+    {
+        $this->increaseQuality($item);
+        if ($item->sellIn < 10) {
+            $this->increaseQuality($item);
+        }
+        if ($item->sellIn < 5) {
+            $this->increaseQuality($item);
+        }
+        if ($item->sellIn < 0) {
+            $item->quality = 0;
+        }
+    }
+
+    private function updateConjured($item): void
+    {
+        $this->decreaseQuality($item);
+        $this->decreaseQuality($item);
+        if ($item->sellIn < 0) {
+            $this->decreaseQuality($item);
+            $this->decreaseQuality($item);
+        }
+    }
+
+    private function updateNormalItem($item): void
+    {
+        $this->decreaseQuality($item);
+        if ($item->sellIn < 0) {
+            $this->decreaseQuality($item);
+        }
+    }
+
+    private function increaseQuality($item): void
+    {
+        if ($item->quality < 50) {
+            $item->quality++;
+        }
+    }
+
+    private function decreaseQuality($item): void
+    {
+        if ($item->quality > 0) {
+            $item->quality--;
+        }
+    }
+
+    private function ensureQualityInRange($item): void
+    {
+        $item->quality = max(0, min(50, $item->quality));
+    }
 }