/// <summary>
/// Removes the item at the given position from the item roster.
/// </summary>
/// <param name="position"></param>
public void RemoveSpecific(int position)
{
ItemInCart iic = listOfItems[position];
listOfItems.RemoveAt(position);
itemRosterTally[iic.GetName()]--;
itemRosterTallyUsed[iic.GetName()]--;
Consolidate(iic.GetName(), TALLY_STATE.REMOVE);
}
/// <summary>
/// Applies the specials in the list of tokens into the list of items.
/// Specials are applied top-down the list.
/// </summary>
/// <param name="itemRosterAsPurchased">The list of purchased items (in entries).</param>
/// <param name="listOfApplyingSpecials">The list of applying specials.</param>
internal static void ApplySpecials(List <ItemInCart> itemRosterAsPurchased, SpecialTokenManager stm)
{
int i = 0;
while (i < stm.GetTokenListSize())
{
SpecialToken token = stm.GetToken(i);
//with this token, we will: apply bonuses to items top-down.
//The items that this special affects. ALL OF IT.
Queue <ItemInCart> appliedRoster = new Queue <ItemInCart>();
foreach (ItemInCart item in itemRosterAsPurchased)
{
if (token.CanBeAppliedTo(item))
{
appliedRoster.Enqueue(item);
}
}
//The list now only has items that qualify for the special.
//Sorted by highest price to the lowest.
Queue <ItemInCart> sortedRoster = SortByPrice(appliedRoster);
bool header = true;
int fireCount = token.GetAffectedCount();
while (sortedRoster.Count > 0 && fireCount > 0)
{
ItemInCart sri = sortedRoster.Dequeue();
if (token.special.special_type == Special.SPECIAL_TT.DEFERRED && header)
{
//if it's deferred, the first item that qualifies for the special would be
//the most expensive, and thus the qualifing item that doesn't get
//the deal. Ergo, it's the header.
sri.SetDeferHeader();
header = false;
//boo boo bandaid.
//to stop the header from eating a fire count.
fireCount++;
}
else if (!sri.isDiscounted)
{
sri.SetSpecialValue(token.special);
}
fireCount--;
}
i++;
}
}
/// <summary>
/// Compares the item given with the parameters of this special,
/// returns true if the item does indeed apply to the special.
/// </summary>
/// <param name="item"></param>
/// <returns></returns>
public bool CanBeAppliedTo(ItemInCart item)
{
bool result = false;
//what do we care about?
//1. If we're affecting the same item.
//2. If the price is lower than...what.
if (special.Match(item.GetName()))
{
result = true;
}
return(result);
}
/// <summary>
/// Adds an item into the cart of the given number (of items).
/// </summary>
/// <param name="itemName">The item being purchased.</param>
/// <param name="itemNumber">How many is being purchased.</param>
public void Add(string itemName, float itemNumber = 1)
{
ItemInCart newItem = new ItemInCart(Database_API.GetItem(itemName), itemNumber);
string itemNameClean = newItem.GetName();
listOfItems.Add(newItem);
if (itemRosterTally.ContainsKey(itemNameClean))
{
itemRosterTally[itemNameClean]++;
itemRosterTallyUsed[itemNameClean]++;
}
else
{
itemRosterTally.Add(itemNameClean, 1);
itemRosterTallyUsed.Add(itemNameClean, 1);
}
Consolidate(itemNameClean, TALLY_STATE.ADD);
}
/// <summary>
/// Sorts the incoming queue and returns it with the most expensive item on top.
/// </summary>
/// <param name="queue"></param>
/// <returns></returns>
private static Queue <ItemInCart> SortByPrice(Queue <ItemInCart> queue)
{
Queue <ItemInCart> result = new Queue <ItemInCart>();
List <ItemInCart> list = new List <ItemInCart>();
ItemInCart hold = null;
while (queue.Count > 0)
{
hold = queue.Dequeue();
int i = 0;
while (i < list.Count)
{
ItemInCart item = list[i];
if (hold.GetOriginalPrice() > item.GetOriginalPrice())
{
list[i] = hold;
hold = item;
}
i++;
}
//At the end, hold has to be added to the list, so...
list.Add(hold);
}
int j = 0;
while (j < list.Count)
{
result.Enqueue(list[j]);
j++;
}
return(result);
}
/// <summary>
/// Sets an item to have this token's special.
/// </summary>
/// <param name="item"></param>
public void SetSpecial(ItemInCart item)
{
item.SetSpecialValue(special);
}