/// <summary>
/// This Methods Add/update item to shopping cart
/// </summary>
/// <param name="BilledItems"></param>
/// <param name="billedItem"></param>
/// <param name="findItem"></param>
public static void CheckItemAndAdd(Dictionary <int, BilledItem> BilledItems, BilledItem billedItem, Item findItem)
{
if (BilledItems.ContainsKey(findItem.Id))
{
BilledItems[findItem.Id] = billedItem;
}
else
{
BilledItems.Add(findItem.Id, billedItem);
}
}
/// <summary>
/// To Create Shopping Cart item
/// </summary>
/// <param name="findItem"></param>
/// <param name="Qnum"></param>
/// <param name="discDtl"></param>
/// <param name="totalCost"></param>
/// <returns></returns>
public static BilledItem CreateItem(Item findItem, double Qnum, String discDtl, double totalCost)
{
BilledItem billItem = new BilledItem
{
ItmName = findItem.Name,
ItmQuantity = Qnum,
ItmCost = findItem.Cost,
DisCntDetails = discDtl,
TotCost = totalCost
};
return(billItem);
}
/// <summary>
/// Generate bill with applying Weekly offers to added items in the shopping cart
/// </summary>
/// <param name="ShoppingCart"></param>
/// <param name="offer"></param>
public static Bill GenerateBill(Dictionary <Products, long> ShoppingCart, WeeklyOffer offer, PricePerItem productPrices)
{
// Generate bill object
Bill custBill = new Bill();
List <BilledItem> billedItems = new List <BilledItem>();
foreach (Products item in ShoppingCart.Keys)
{
BilledItem billItem = new BilledItem();
billItem.Product = item;
Dictionary <long, double> offeredPriceForItem = offer.Offer.FirstOrDefault(kvp => kvp.Key == item).Value;
long productCountInBucket = ShoppingCart[item];
// apply Offer
long howManyOnOfferedPrice = 0;
offeredPriceForItem?.Keys?.OrderByDescending(v => v).ToList().ForEach(key => {
if (offeredPriceForItem != null && productCountInBucket >= key)
{
howManyOnOfferedPrice = productCountInBucket - (productCountInBucket % key);
billItem.ItemsWithOfferedPrice.Add(howManyOnOfferedPrice, ((howManyOnOfferedPrice / key) * offeredPriceForItem[key]));
}
});
// check without offer items and apply rate.
long howManyWithoutOfferedPrice = productCountInBucket - billItem.ItemsWithOfferedPrice.Keys.Sum();
if (howManyWithoutOfferedPrice > 0)
{
billItem.ItemsWithPrice.Add(howManyWithoutOfferedPrice, howManyWithoutOfferedPrice * productPrices.PricePerProduct[item]);
}
// add billed items in the bill array
billedItems.Add(billItem);
}
custBill.Products = billedItems;
return(custBill);
}
/// <summary>
/// To Display All items in shoping cart
/// </summary>
/// <param name="BilledItems"></param>
public static void DisplayBill(Dictionary <int, BilledItem> BilledItems)
{
double gTotal = 0;
Console.WriteLine("-----------------------------------------------------------------------");
Console.WriteLine("SNo | Item Name | Quantity | Unit Cost | Discount Details | Total Cost");
Console.WriteLine("-----------------------------------------------------------------------");
// foreach (BilledItem bItm in BilledItems)
int count = 1;
foreach (KeyValuePair <int, BilledItem> item in BilledItems)
{
BilledItem bItm = item.Value;
Console.WriteLine(String.Format("{0,3} | {1,-9} | {2,8} | {3,9} | {4,-16} | {5,10}", count++, bItm.ItmName, bItm.ItmQuantity, bItm.ItmCost, bItm.DisCntDetails, bItm.TotCost.ToString() + "$"));
gTotal = gTotal + bItm.TotCost;
}
Console.WriteLine("-----------------------------------------------------------------------");
Console.WriteLine(String.Format("{0,57} | {1,10}", "Grand Total ", gTotal.ToString() + "$"));
Console.WriteLine("-----------------------------------------------------------------------");
Console.WriteLine("");
}
/// <summary>
/// To Apply Discout Percentage for items in the cart based on item discount value specified
/// </summary>
/// <param name="BilledItems"></param>
/// <param name="findCop"></param>
/// <param name="findItem"></param>
/// <param name="billedItem"></param>
/// <param name="Qnum"></param>
/// <remarks> This Method First calculates total item quantity by iterating through items. Discount amt calculated based on discount % information available for item
/// </remarks>
public static void ApplyDiscountPct(Dictionary <int, BilledItem> BilledItems, DiscountCoupon findCop, Item findItem, BilledItem billedItem, double Qnum)
{
BilledItems.TryGetValue(findItem.Id, out BilledItem DictValue);
double totalQty = Qnum;
if (DictValue != null)
{
totalQty = DictValue.ItmQuantity + Qnum;
}
billedItem.DisCntDetails = findCop.CDetails.CDiscountVal.ToString() + findCop.CDetails.CUnit;
billedItem.TotCost = totalQty * findItem.Cost * (double)(100 - findCop.CDetails.CDiscountVal) / 100;
billedItem.ItmQuantity = totalQty;
}
/// <summary>
/// To Apply Discount on Quantity
/// </summary>
/// <param name="BilledItems"></param>
/// <param name="findCop"></param>
/// <param name="findItem"></param>
/// <param name="billedItem"></param>
/// <param name="Qnum"></param>
/// <remarks> This Methods First calculates total quantity by iterating through items if needed. Calculate Discount Quantity by adding Discount coupon details.
/// Total Discount Quantity will be calculated by dividing total quantity and Discount Quantity. Total cost will be calculated after removing discount quantity
/// </remarks>
public static void ApplyDiscount(Dictionary <int, BilledItem> BilledItems, DiscountCoupon findCop, Item findItem, BilledItem billedItem, double Qnum)
{
BilledItems.TryGetValue(findItem.Id, out BilledItem DictValue);
double totalQty = Qnum;
if (DictValue != null)
{
totalQty = DictValue.ItmQuantity + Qnum;
}
int totalQtyWithDiscout = findCop.CDetails.CDiscountVal + findCop.CDetails.CMinVal;
double totalDiscountQty = (int)totalQty / totalQtyWithDiscout;
billedItem.DisCntDetails = "Buy " + findCop.CDetails.CMinVal.ToString() + " Get " + findCop.CDetails.CDiscountVal.ToString() + " Free";
billedItem.TotCost = (totalQty - totalDiscountQty) * findItem.Cost;
billedItem.ItmQuantity = totalQty;
}
static void Main(string[] args)
{
for (int i = 0; i < MyItems; i++)
{
try
{
if (MyItems == 1)
{
Console.WriteLine("Welcome to the Store....");
Console.Write("Please scan the item code (Enter item Id):");
}
else if (MyItems >= 1)
{
Console.Write("Please scan the next item code (Enter item Id):");
}
string inputItem = Console.ReadLine();
if (Int32.TryParse(inputItem, out int num))// (foo, out int number1))
{
ItemRepository itemsRep = new ItemRepository();
Item finditem = itemsRep.Retrieve(num);
if (finditem == null)
{
Console.WriteLine("Input is not a valid item Id!");
}
else
{
Console.WriteLine("Item Name : " + finditem.Name + " -- Item Cost : " + finditem.Cost.ToString() + "$");
Console.Write("Enter the Quantity in " + finditem.IType.Unit + " : ");
string inputQuantity = Console.ReadLine();
double Qnum = 0;
bool validInput = true;
// To check the item type and user input
if (finditem.IType.Type == "Count")
{
if (Int32.TryParse(inputQuantity, out int inum))
{
validInput = true;
Qnum = inum;
}
else
{
validInput = false;
}
}
else
{
if (double.TryParse(inputQuantity, out Qnum))
{
validInput = true;
}
else
{
validInput = false;
}
}
if (validInput && Qnum > 0)
{
DiscountRepository desCop = new DiscountRepository();
DiscountCoupon findCop = desCop.Retrieve(num);
// For no discount items
if (findCop == null || findCop.CouponID == 0)
{
//Console.WriteLine("No Discount");
// To calculate Total quantity by iterating through shopping cart if needed
double totalQty = CashRegisterService.CalculateQty(Qnum, BilledItesmDict, finditem);
// Adding item to shopping cart Dictionary
CashRegisterService.CheckItemAndAdd(BilledItesmDict, CashRegisterService.CreateItem(finditem, totalQty, "-", totalQty * finditem.Cost), finditem);
CashRegisterService.DisplayBill(BilledItesmDict);
}
else
{
Console.WriteLine("Discount Value:" + findCop.CDetails.CDiscountVal.ToString());
BilledItem billItem = new BilledItem
{
ItmName = finditem.Name,
ItmQuantity = Qnum,
ItmCost = finditem.Cost
};
if (finditem.IType.Type == "Count")
{
int FreeItems = 0;
try
{
FreeItems = Convert.ToInt32(Qnum) / findCop.CDetails.CMinVal;
}
catch (Exception)
{
Console.WriteLine("Exception occurred while calculating free items");
}
if (FreeItems > 0)
{
// To Calculate Discount for Qunatity based items
CashRegisterService.ApplyDiscount(BilledItesmDict, findCop, finditem, billItem, Qnum);
}
else
{
billItem.DisCntDetails = "-";
billItem.TotCost = Qnum * finditem.Cost;
}
}
else
{
if (Qnum >= findCop.CDetails.CMinVal)
{
// To Calculate Discount based on percentage
CashRegisterService.ApplyDiscountPct(BilledItesmDict, findCop, finditem, billItem, Qnum);
}
else
{
billItem.DisCntDetails = "-";
billItem.TotCost = Qnum * finditem.Cost;
}
}
// Adding item to shopping cart Dictionary
CashRegisterService.CheckItemAndAdd(BilledItesmDict, billItem, finditem);
CashRegisterService.DisplayBill(BilledItesmDict);
}
}
else
{
Console.WriteLine("Input is not a valid item Id!");
}
}
}
else
{
Console.WriteLine("Input is not a valid item Id!");
}
ContinuePurchase();
}
catch (FormatException e)
{
Console.WriteLine("\n\n\n\n\n{0}\n\n\n\n", e.Message);
ContinuePurchase();
}
}
}
