CleanCode-GildedRoseKata/Inventory.java

import java.util.List;
import java.util.Arrays;

public class Inventory {
    private Item[] items;

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

    public void updateQuality() {

        for (Item item: items) {
            if (item.getName().equals("Aged Brie")) {
                setAgedBrie(item);
            } else if(isNotLegenday(item)) {
                setNoneLegendary(item);
            }
        }
        
    }
    
    private boolean isNotLegenday(Item item){
    List<String> legendayItem = Arrays.asList
    ("Sulfuras, Hand of Ragnaros");
        return legendayItem.contains(item.getName()) ? false : true;
    }
    
    private void setAgedBrie(Item item){
        if (item.getQuality() < 50) {
            item.setQuality(item.getQuality() + 1);
        }     
        if (item.getSellIn() < 0 && item.getQuality() < 50) {
                item.setQuality(item.getQuality() + 1);
        }        
    }
    
    private void setNoneLegendary(Item item){
        if (item.getQuality() > 0) {
            item.setQuality(item.getQuality() - 1);
        }
        if (item.getSellIn() < 0) {
          item.setQuality(item.getQuality() - 1);
        }
        
        item.setSellIn(item.getSellIn() - 1);
    }
    
   
}