CleanCode-GildedRoseKata/Inventory.java

public class Inventory {
    private Item[] items;

    public Inventory(Item[] items) {
        super();
        this.items = items;
    }

    public void updateQuality() {

        for (Item item: items) {
           
            //This loop runs at the end of each day
            //SellIn is the value which denotes the number of days we have to sell the item
            //Quality value denotes how values for every item
            
            if (item.getName().equals("Aged Brie")) {
               
                if (item.getQuality() < 50) {
                    item.setQuality(item.getQuality() + 1);
                }     
                
                if (item.getSellIn() < 0 && item.getQuality() < 50) {
                        item.setQuality(item.getQuality() + 1);
                }
                
            } else {
                
                if (item.getQuality() > 0) {
                    if (!item.getName().equals("Sulfuras, Hand of Ragnaros")) {
                        item.setQuality(item.getQuality() - 1);
                    }
                }
            
                if (item.getSellIn() < 0) {
                  item.setQuality(item.getQuality() - 1);
                }

            }
            
            if (!item.getName().equals("Sulfuras, Hand of Ragnaros")) {
                item.setSellIn(item.getSellIn() - 1);
            }
        }
        
    }
    
    private boolean isNotLegenday(Item item){
        return item.getName().equals("Sulfuras, Hand of Ragnaros") ? true : false;
    }
   
}