/// <summary>
/// Simulates a fight between the player and the boss using the specified upgrades.
/// </summary>
/// <param name="weapon">The weapon to purchase.</param>
/// <param name="armor">The armor to purchase, if any.</param>
/// <param name="rings">The rings to purchase, if any.</param>
/// <returns>
/// A <see cref="Tuple{T1, T2}"/> that returns whether the human player won and the amount of gold spent.
/// </returns>
internal static Tuple<bool, int> Fight(string weapon, string armor, ICollection<string> rings)
{
Shop shop = new Shop();
Human human = new Human();
int goldSpent = human.Upgrade(shop.PurchaseWeapon(weapon));
if (!string.IsNullOrEmpty(armor))
{
goldSpent += human.Upgrade(shop.PurchaseArmor(armor));
}
foreach (string ring in rings.Distinct().Take(2))
{
goldSpent += human.Upgrade(shop.PurchaseRing(ring));
}
Boss boss = new Boss();
Player winner = Fight(human, boss);
return Tuple.Create(winner == human, goldSpent);
}