private void Degrade(Item item)
{
UpdateQuality(item);
DecreaseSellIn(item);
if (OutOfDate(item))
UpdateQualityWhenOutOfDate(item);
}
public static void UpdateItem(Item item)
{
IUpdater updater = UpdaterFactory.CreateUpdater(item);
updater.UpdateItem(item);
return;
}
private void DecrementNonLegendaryItem(Item item)
{
if (item.Name != legendaryItem)
{
item.Quality--;
}
}
private void UpdateConcertTicketQuality(Item item)
{
if (item.Quality < MAXQUALITY)
{
item.Quality++;
if (item.Name == concertTickets)
{
if (item.SellIn < 11)
{
Increment(item);
}
if (item.SellIn < 6)
{
Increment(item);
}
}
}
}
private void Increment(Item item)
{
if (item.Quality < MAXQUALITY)
{
item.Quality++;
}
}
private void increaseQuality(Item item)
{
incrementQuality(item);
if (item.Name == "Backstage passes to a TAFKAL80ETC concert")
{
if (item.SellIn < 11)
{
incrementQuality(item);
}
if (item.SellIn < 6)
{
incrementQuality(item);
}
}
}
private void decreaseQuality(Item item)
{
if (item.Quality > 0)
item.Quality = item.Quality - 1;
}
private static bool IsMutable(Item item)
{
return item.Name != "Sulfuras, Hand of Ragnaros";
}
private static bool OutOfDate(Item item)
{
return item.SellIn < 0;
}
private static void DecreaseSellIn(Item item)
{
item.SellIn = item.SellIn - 1;
}
private void UpdateQualityWhenOutOfDate(Item item)
{
if (item.Name == "Aged Brie")
{
increaseQuality(item);
} else if (item.Name == "Backstage passes to a TAFKAL80ETC concert")
{
item.Quality = 0;
}
else
{
decreaseQuality(item);
}
}
private void UpdateQuality(Item item)
{
if (isPerishable(item))
{
decreaseQuality(item);
}
else
{
increaseQuality(item);
}
}
private bool isPerishable(Item item)
{
return (item.Name != "Aged Brie" && item.Name != "Backstage passes to a TAFKAL80ETC concert");
}
private void incrementQuality(Item item)
{
if (item.Quality < 50)
item.Quality = item.Quality + 1;
}