public void SplitBill(int billID, List<OrderItem> originalBillItems, List<OrderItem> newBillItems)
{
//Split the bill in two...
using (var context = new RestaurantContext())
{
//TODO: Validation
//1) Get the bill
var bill = context.Bills.Find(billID);
if(bill == null) throw new ArgumentException("invalid bill ID - does not exist");
//2)Loop through bill items, if item not in original, remove
List<BillItem> toRemove = new List<BillItem>();
//this loop identifies/references each item to remove
foreach(var item in bill.Items) //the items already in the DB
{
bool inOriginal = originalBillItems.Any(x => x.ItemName == item.Item.Description);
bool inNewItems = newBillItems.Any(x => x.ItemName == item.Item.Description);
if(!inOriginal)
{
if (!inNewItems)
throw new Exception("Hey - someone's got to pay for that!");
toRemove.Add(item);
}
}
foreach(var item in toRemove)
{
context.BillItems.Remove(item);
}
//3)Make a new bill
var newBill = new Bill()
{
BillDate = bill.BillDate, //some info from the original bill
Comment = "Split from bill number: " + bill.BillID,
NumberInParty = bill.NumberInParty,
OrderPlaced = bill.OrderPlaced,
OrderReady = bill.OrderReady,
OrderServed = bill.OrderServed,
WaiterID = bill.WaiterID
//TODO: tough question about rules around splitting the bill for a single table vs. reservation
};
//4)Add the new moved items to the new bill
foreach (var item in toRemove)
{
newBill.Items.Add(new BillItem()
{
ItemID = item.ItemID,
Notes = item.Notes,
Quantity = item.Quantity,
SalePrice = item.SalePrice,
UnitCost = item.UnitCost
});
}
//5)Add the new bill to the context
context.Bills.Add(newBill);
//6) Save the changes...
context.SaveChanges(); //call this only ONCE at the end - TRANSACTION
}
}
/// <summary>
/// Seats a customer that is a walk-in
/// </summary>
/// <param name="when">A mock value of the date/time (Temporary - see remarks)</param>
/// <param name="tableNumber">Table number to be seated</param>
/// <param name="customerCount">Number of customers being seated</param>
/// <param name="waiterId">Id of waiter that is serving</param>
public void SeatCustomer(DateTime when, byte tableNumber, int customerCount, int waiterId)
{
var availableSeats = AvailableSeatingByDateTime(when.Date, when.TimeOfDay);
using (var context = new RestaurantContext())
{
List<string> errors = new List<string>();
// Rule checking:
// - Table must be available - typically a direct check on the table, but proxied based on the mocked time here
// - Table must be big enough for the # of customers
if (!availableSeats.Exists(x => x.Table == tableNumber))
errors.Add("Table is currently not available");
else if (!availableSeats.Exists(x => x.Table == tableNumber && x.Seating >= customerCount))
errors.Add("Insufficient seating capacity for number of customers.");
if (errors.Count > 0)
throw new BusinessRuleException("Unable to seat customer", errors);
Bill seatedCustomer = new Bill()
{
BillDate = when,
NumberInParty = customerCount,
WaiterID = waiterId,
TableID = context.Tables.Single(x => x.TableNumber == tableNumber).TableID
};
context.Bills.Add(seatedCustomer);
context.SaveChanges();
}
}
public void SeatCustomer(DateTime when, int reservationId, List<byte> tables, int waiterId)
{
var availableSeats = AvailableSeatingByDateTime(when.Date, when.TimeOfDay);
using (var context = new RestaurantContext())
{
List<string> errors = new List<string>();
// Rule checking:
// - Reservation must be in Booked status
// - Table must be available - typically a direct check on the table, but proxied based on the mocked time here
// - Table must be big enough for the # of customers
var reservation = context.Reservations.Find(reservationId);
if (reservation == null)
errors.Add("The specified reservation does not exist");
else if (reservation.ReservationStatus != Reservation.Booked)
errors.Add("The reservation's status is not valid for seating. Only booked reservations can be seated.");
var capacity = 0;
foreach (var tableNumber in tables)
{
if (!availableSeats.Exists(x => x.Table == tableNumber))
errors.Add("Table " + tableNumber + " is currently not available");
else
capacity += availableSeats.Single(x => x.Table == tableNumber).Seating;
}
if (capacity < reservation.NumberInParty)
errors.Add("Insufficient seating capacity for number of customers. Alternate tables must be used.");
if (errors.Count > 0)
throw new Exception("Unable to seat customer");
// 1) Create a blank bill with assigned waiter
Bill seatedCustomer = new Bill()
{
BillDate = when,
NumberInParty = reservation.NumberInParty,
WaiterID = waiterId,
ReservationID = reservation.ReservationID
};
context.Bills.Add(seatedCustomer);
// 2) Add the tables for the reservation and change the reservation's status to arrived
foreach (var tableNumber in tables)
reservation.Tables.Add(context.Tables.Single(x => x.TableNumber == tableNumber));
reservation.ReservationStatus = Reservation.Arrived;
var updatable = context.Entry(context.Reservations.Attach(reservation));
updatable.Property(x => x.ReservationStatus).IsModified = true;
//updatable.Reference(x=>x.Tables).
// 3) Save changes
context.SaveChanges();
}
//string message = String.Format("Not yet implemented. Need to seat reservation {0} for waiter {1} at tables {2}", reservationId, waiterId, string.Join(", ", tables));
//throw new NotImplementedException(message);
}
public void SplitBill(int billid, List<OrderItem> updatesToOriginalBillItems, List<OrderItem> newBillItems)
{
//split the bill in two
using(var context = new RestaurantContext())
{
//TODO: 0)Validation
//1) Get the Bill
var bill = context.Bills.Find(billid);
if (bill == null) throw new ArgumentException("Invalid Bill ID - does not exist");
//2) Loop through bill items, if item not in original, remove
List<BillItem> toRemove = new List<BillItem>();
foreach(var item in bill.BillItems) // the items already in the DB
{
bool inOriginal = updatesToOriginalBillItems.Any(
x => x.ItemName == item.Items.Description);
bool inNewItems = newBillItems.Any(x => x.ItemName == item.Items.Description);
if(!inOriginal)
{
if (!inNewItems)
throw new Exception("Bill needs to be paid");
toRemove.Add(item);
}
}
foreach (var item in toRemove)
context.BillItems.Remove(item);
//3) Make a new bill
var newBill = new Bill()
{
BillDate = bill.BillDate, //some info from original bill
Comment = "Split from bill# " + bill.BillID,
NumberInParty = bill.NumberInParty,
OrderPlaced = bill.OrderPlaced,
OrderReady = bill.OrderReady,
OrderServed = bill.OrderServed,
WaiterID = bill.WaiterID
//TO DO:splitting a bill for a single table vs. reservation?
};
//4) Add the new moved items to the new bill
foreach(var item in toRemove)
{
newBill.BillItems.Add(new BillItem()
{
ItemID = item.ItemID,
Notes = item.Notes,
Quantity = item.Quantity,
SalePrice = item.SalePrice,
UnitCost = item.UnitCost
});
}
//5) Add the new bill to the context
context.Bills.Add(newBill);
//6) Save the changes...
context.SaveChanges(); // call this only ONCE at the end - TRANSACTION
}
}
