/// <summary>
/// Removes the most recent entry with the matching name from the item roster.
/// </summary>
/// <param name="itemName"></param>
public void RemoveLast(string itemName)
{
int i = listOfItems.Count;
string name = "";
while (i > 0)
{
i--;
bool match = listOfItems[i].Match(itemName);
if (match)
{
name = listOfItems[i].GetName();
listOfItems.RemoveAt(i);
break;
}
}
itemRosterTally[name]--;
itemRosterTallyUsed[name]--;
Consolidate(Database_API.GetItem(itemName).name, TALLY_STATE.REMOVE);
}
/// <summary>
/// Write the prompt needed to add an item into the database.
/// </summary>
private static void WriteAction_Add_To_DB_Item()
{
Console.WriteLine("Note that if there is duplicates within the database, then then new entry" +
"will replace the old one.");
Console.Write("Enter the name of your item: ");
string name = Console.ReadLine();
Console.Write("Is the item priced by weight? (y/n, n default): ");
string byWeight = Console.ReadLine();
Console.Write("Enter the price of the item: ");
string price = Console.ReadLine();
bool weighted = false;
if (byWeight.TrimStart().ToLower()[0] == 'y')
{
weighted = true;
}
float value = float.Parse(price);
Database_API.AddItem(name, value, weighted);
Console.WriteLine("Adding complete.");
}
/// <summary>
/// Gets the price of the purchase.
/// </summary>
/// <returns></returns>
public float GetPrice()
{
Item itemdb = Database_API.GetItem(itemRef);
float total = itemdb.price;
if (itemdb.priceByWeight)
{
total *= quantity;
}
if (isDiscounted && !isDeferHeader)
{
switch (special_ID.discount_type)
{
case Special.DISCOUNT_TYPE.REDUCE_BY_DOLLAR:
total -= special_ID.itemCostChange;
break;
case Special.DISCOUNT_TYPE.REDUCE_BY_PERCENTAGE:
total *= (100 - special_ID.itemCostChange) * 0.01f;
break;
case Special.DISCOUNT_TYPE.SET_TO_AMOUNT:
total = special_ID.itemCostChange;
break;
}
}
return(total);
}
public float GetOriginalPrice()
{
Item itemdb = Database_API.GetItem(itemRef);
float total = itemdb.price;
if (itemdb.priceByWeight)
{
total *= quantity;
}
return(total);
}
/// <summary>
/// Adds a special as a token into the list of tokens.
/// </summary>
/// <param name="token">The special we want tokenized.</param>
public void AddToken(string token)
{
bool duplicate = HasToken(token);
if (!duplicate)
{
listOfTokens.Add(new SpecialToken(Database_API.GetSpecial(token)));
}
else
{
listOfTokens[HasTokenPosition(token)].Increment();
}
}
/// <summary>
/// Writes a list of all specials available in the database.
/// </summary>
/// <returns></returns>
private static string WriteSpecials()
{
StringBuilder builder = new StringBuilder();
int h = 0;
int i = Database_API.GetSpecialsCount();
while (h < i)
{
Special item = Database_API.GetSpecial(h);
builder.Append(DisplayOrganizer.AddEntry(item.itemAffected, SPACING_NAME));
builder.AppendLine(FormatSP(item, SPACING_NAME));
h++;
}
return(builder.ToString());
}
/// <summary>
/// Writes a list of all items available in the database.
/// </summary>
/// <returns>A string of all items in the database.</returns>
private static string WriteItems()
{
StringBuilder builder = new StringBuilder();
int h = 0;
int i = Database_API.GetItemCount();
while (h < i)
{
Item item = Database_API.GetItem(h);
builder.Append(DisplayOrganizer.AddEntry(item.name, SPACING_NAME));
builder.Append(DisplayOrganizer.AddEntry(item.price.ToString(), SPACING_VALUE));
builder.AppendLine(DisplayOrganizer.AddMark(item.priceByWeight));
h++;
}
return(builder.ToString());
}
/// <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);
}
public static void BuildData()
{
if (!builtItems)
{
//Items that sell by weight
Database_API.AddItem("Beef", 10, true);
Database_API.AddItem("Chicken", 10, true);
Database_API.AddItem("Peas", 10, true);
//Items that sell by unit
Database_API.AddItem("Soup", 5);
Database_API.AddItem("Pencils", 6);
Database_API.AddItem("Carpet", 100);
Database_API.AddItem("Candy", 4);
//Items that sell by weight but we actually care about it.
Database_API.AddItem("Flour", 6, true);
builtItems = true;
}
if (!builtSpecials)
{
Database_API.AddSpecial(new SpecialNormal("Soup", 3, Special.DISCOUNT_TYPE.REDUCE_BY_DOLLAR, 3, 3));
Database_API.AddSpecial(new SpecialNormal("Candy", 2, Special.DISCOUNT_TYPE.REDUCE_BY_DOLLAR, 2, 2));
Database_API.AddSpecial(new SpecialNormal("Chicken", 50, Special.DISCOUNT_TYPE.REDUCE_BY_PERCENTAGE, 2, 1));
//Bundling Deals
Database_API.AddSpecial(new SpecialNormal("Flour", 6, Special.DISCOUNT_TYPE.SET_TO_AMOUNT, 3, 3));
//Deals with a limit
Database_API.AddSpecial(new SpecialNormal("Carpet", 60, Special.DISCOUNT_TYPE.REDUCE_BY_DOLLAR, 1, 1, 1));
//Deals that affect the next item rather than the first one.
Database_API.AddSpecial(new SpecialDeferred("Beef", 50, Special.DISCOUNT_TYPE.REDUCE_BY_PERCENTAGE, 1));
builtSpecials = true;
}
}
/// <summary>
/// Take an item and check to see if the amount of purchases of its type
/// allows for a special.
/// </summary>
private void Consolidate(string key, TALLY_STATE state)
{
//TRUE when a deal is either possible or is about to be impossible.
bool hasSpecial = Database_API.TryGetMatchingDeal(key, itemRosterTallyUsed[key]) ||
itemRosterTallyUsed[key] < 0;
bool deferred = false;
bool specialStateReset = false;
if (hasSpecial)
{
Special special = Database_API.GetSpecial(key);
if (itemRosterTallyUsed[key] >= special.itemsNeededToFire && state == TALLY_STATE.ADD)
{
itemRosterTallyUsed[key] -= special.itemsNeededToFire;
stm.AddToken(special);
specialStateReset = true;
}
else if (itemRosterTallyUsed[key] < 0 && state == TALLY_STATE.REMOVE)
{
itemRosterTallyUsed[key] += special.itemsNeededToFire;
stm.RemoveToken(special);
specialStateReset = true;
}
deferred = special.special_type == Special.SPECIAL_TT.DEFERRED;
}
//If we're removing, do a purge just in case.
specialStateReset = state == TALLY_STATE.REMOVE;
if (specialStateReset || deferred)
{
//Run if we're either removing, or else have a deferred special.
PurgeSpecials(key);
}
ApplySpecials();
}
/// <summary>
/// Buy an item.
/// </summary>
private static void WriteAction_PlaceOrder()
{
Console.Write("Enter the name of the item being purchased: ");
string itemName = Console.ReadLine().Trim();
bool hasItem = Database_API.TryGetItem(itemName);
if (!hasItem)
{
Console.WriteLine("No such item exists in the database.");
}
else
{
if (Database_API.GetItem(itemName).priceByWeight)
{
Console.Write("enter the weight of the purchase: ");
float quantity = float.Parse(Console.ReadLine());
pim.Add(itemName, quantity);
}
else
{
Console.Write("enter how many items are being purchased. ");
int quantity = int.Parse(Console.ReadLine());
while (quantity > 0)
{
pim.Add(itemName);
quantity--;
}
}
}
Console.WriteLine("Purchases added. Please review the receipt for specifics.");
WriteAction_Total();
}
/// <summary>
/// Write the prompt needed to add an item into the database.
/// </summary>
private static void WriteAction_Add_To_DB_Special()
{
bool hasItem = false;
Console.WriteLine("If a special is added to the database that already affects an item, then the new" +
"special will replace the old one.");
Console.Write("Enter the name of the item being affected: ");
string name = Console.ReadLine().Trim();
hasItem = Database_API.TryGetItem(name);
string isDeferred;
string disType;
string disValue;
int fireCount = 0;
int affectCount = 0;
int fireLimit = 0;
bool defer = false;
if (hasItem)
{
Console.WriteLine("Is the special deferred? (As in, 'buy x get y FREE') (y/n): ");
isDeferred = Console.ReadLine();
defer = isDeferred.TrimStart().ToLower()[0] == 'y';
Console.WriteLine("How does the special calculate its discount? " +
"(1: flat (2 dollars off per item), 2: by percentage, 3: set price (as in, 3 for 5) (1/2/3): ");
disType = Console.ReadLine();
int type = int.Parse(disType);
Special.DISCOUNT_TYPE typeAdd = Special.DISCOUNT_TYPE.SET_TO_AMOUNT;
switch (type)
{
case 1: typeAdd = Special.DISCOUNT_TYPE.SET_TO_AMOUNT; break;
case 2: typeAdd = Special.DISCOUNT_TYPE.REDUCE_BY_PERCENTAGE; break;
case 3: typeAdd = Special.DISCOUNT_TYPE.REDUCE_BY_DOLLAR; break;
}
Console.Write("What is the value of the discount? (If it's a percentage," +
"enter the desired value without percentage sign: ");
disValue = Console.ReadLine();
int value = int.Parse(disValue);
if (!defer)
{
Console.Write("How many items does this special need to fire? ");
fireCount = int.Parse(Console.ReadLine());
Console.Write("How many items does this special affect when fired? ");
affectCount = int.Parse(Console.ReadLine());
}
Console.Write("How many times can a customer use this special? ");
fireLimit = int.Parse(Console.ReadLine());
if (defer)
{
Database_API.AddSpecial(new SpecialDeferred(name, value, typeAdd, fireLimit));
}
else
{
Database_API.AddSpecial(new SpecialNormal(name, value,
typeAdd, fireCount, affectCount, fireLimit));
}
Console.WriteLine("Special added successfully.");
}
else
{
Console.WriteLine("No such item exists in the database. Make sure it's spelled correctly.");
}
}
