public void SplitBill(int billId, List<OrderItem> updatesToOriginalBillItems, List<OrderItem> newBillItems)
{
// TODO: Actually go through and split that bill into 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> toMove = new List<BillItem>();
foreach(var item in bill.Items) // the items already in the DB
{
bool inOriginal = updatesToOriginalBillItems.Any(x => x.ItemName == item.Item.Description);
bool inNewItems = newBillItems.Any(x => x.ItemName == item.Item.Description);
if(!inOriginal)
{
// TODO: clean
if (!inNewItems)
throw new Exception("Hey - someone's got to pay for that!");
toMove.Add(item);
}
}
foreach (var item in toMove)
context.BillItems.Remove(item);
// 3) Make a new bill
var newBill = new Bill()
{
BillDate = bill.BillDate,
Comment = "Split from bill# " + bill.BillID,
NumberInParty = bill.NumberInParty, // meh
OrderPlaced = bill.OrderPlaced,
OrderReady = bill.OrderReady,
OrderServed = bill.OrderServed,
WaiterID = bill.WaiterID
// TODO: thorny question about rules around splitting bill for a single table vs. reservation
};
// 4) Add the new missing items to the new bill
foreach(var item in toMove)
{
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) hope for the best.
context.SaveChanges();
}
}
public List<SpecialEvent> ListSpecialEvents()
{
using (var context = new RestaurantContext())
{
return context.SpecialEvents.ToList();
}
}
public List<Item> ListMenuItems()
{
using (var context = new RestaurantContext())
{
return context.Items.Include(it => it.MenuCategory).ToList();
}
}
/// <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 List<Category> ListCategorizedMenuItems()
{
using (var context = new RestaurantContext())
{
var data = from cat in context.MenuCategories
orderby cat.Description
select new Category()
{
Description = cat.Description,
MenuItems = from item in cat.Items
where item.Active
orderby item.Description
select new MenuItem()
{
Description = item.Description,
Price = item.CurrentPrice,
Calories = item.Calories,
Comment = item.Comment
}
};
return data.ToList();
}
}
public List<Waiter> ListAllWaiters()
{
using (RestaurantContext context = new RestaurantContext())
{
return context.Waiters.ToList();
}
}
public List<ReservationCollection> ReservationsByTime(DateTime date)
{
using (var context = new RestaurantContext())
{
var result = from data in context.Reservations
where data.ReservationDate.Year == date.Year
&& data.ReservationDate.Month == date.Month
&& data.ReservationDate.Day == date.Day
&& data.ReservationStatus == Reservation.Booked
select new ReservationSummary()
{
ID = data.ReservationID, // needed for when we actually seat the reservation
Name = data.CustomerName,
Date = data.ReservationDate,
NumberInParty = data.NumberInParty,
Status = data.ReservationStatus,
Event = data.SpecialEvent.Description,
Contact = data.ContactPhone
//,
//Tables = from seat in data.ReservationTables
// select seat.Table.TableNumber
};
var finalResult = from item in result
group item by item.Date.Hour into itemGroup
select new ReservationCollection()
{
Hour = itemGroup.Key,
Reservations = itemGroup.ToList()
};
return finalResult.ToList();
}
}
public Waiter GetWaiter(int waiterId)
{
using (RestaurantContext context = new RestaurantContext())
{
return context.Waiters.Find(waiterId);
}
}
public Waiters GetWaiter(int WaiterID)
{
using(RestaurantContext context = new RestaurantContext())
{
return context.Waiters.Find(WaiterID);
}
}
public DateTime GetLastBillDateTime()
{
using (var context = new RestaurantContext())
{
var result = context.Bills.Max(x => x.BillDate);
return result;
}
}
public List<Item> ListMenuItems()
{
using(var context = new RestaurantContext())
{ //Note: To use the lambda or Method style of Include, you need to use System.Data.Entity
//get item data and include category data for each item
//the .Include() method on the DbSet(T) class performs "eager loading" of data.
return context.Items.Include(it => it.MenuCategory).ToList();
}
}
public void DeleteSpecialEvent(SpecialEvent item)
{
using (RestaurantContext context = new RestaurantContext())
{
var existing = context.SpecialEvents.Find(item.EventCode);
context.SpecialEvents.Remove(existing);
context.SaveChanges();
}
}
public void DeleteItem(Item item)
{
using (RestaurantContext context = new RestaurantContext())
{
var existing = context.Items.Find(item.ItemID);
context.Items.Remove(existing);
context.SaveChanges();
}
}
public void AddSpecialEvent(SpecialEvent item)
{
using (RestaurantContext context = new RestaurantContext())
{
// TODO: Validation rules...
var added = context.SpecialEvents.Add(item);
context.SaveChanges();
}
}
public void DeleteWaiter(Waiter item)
{
using (RestaurantContext context = new RestaurantContext())
{
var existing = context.Waiters.Find(item.WaiterID);
context.Waiters.Remove(existing);
context.SaveChanges();
}
}
public int AddTable(Table item)
{
using (RestaurantContext context = new RestaurantContext())
{
var added = context.Tables.Add(item);
context.SaveChanges();
return added.TableID;
}
}
public List<Item> ListMenuItems()
{
using (var context = new RestaurantContext())
{
// Get the Item data and include the Category data for each item
return context.Items.Include(x => x.Category).ToList();
// The .Include() method on the DbSet<T> class performs "eager loading" of data.
}
}
public int AddTable(Table item)
{
using (RestaurantContext context = new RestaurantContext())
{
//TODO: Validation of waiter data
var added = context.Tables.Add(item);
context.SaveChanges();
return added.TableID;
}
}
public int AddItem(Item item)
{
using (RestaurantContext context = new RestaurantContext())
{
// TODO: Validation rules...
var added = context.Items.Add(item);
context.SaveChanges();
return added.ItemID;
}
}
public void DeleteWaiter(Waiter item)
{
using (RestaurantContext context = new RestaurantContext())
{
//TODO: Validation of waiter data...
var existing = context.Waiters.Find(item.WaiterID);
context.Waiters.Remove(existing);
context.SaveChanges();
}
}
public void UpdateWaiter(Waiters item)
{
using (RestaurantContext context = new RestaurantContext())
{
var attached = context.Waiters.Attach(item);
var existing = context.Entry<Waiters>(attached);
existing.State = System.Data.Entity.EntityState.Modified;
context.SaveChanges();
}
}
public List<Reservation> GetReservationBySpecialEvent(string eventcode)
{
using (RestaurantContext context = new RestaurantContext())
{
var result = from res in context.Reservations
where res.EventCode == eventcode
select res;
return result.ToList();
}
}
public int AddWaiter(Waiter item)
{
using (RestaurantContext context = new RestaurantContext())
{
// TODO: Validation rules...
var added = context.Waiters.Add(item);
context.SaveChanges();
return added.WaiterID;
}
}
public void UpdateWaiter(Waiter item)
{
using (RestaurantContext context = new RestaurantContext())
{
//TODO: Validation
var attached = context.Waiters.Attach(item);
var matchingWithExistingValues = context.Entry<Waiter>(attached);
matchingWithExistingValues.State = System.Data.Entity.EntityState.Modified;
context.SaveChanges();
}
}
public List<Reservation> getReservation(string EventCode)
{
using (RestaurantContext context = new RestaurantContext())
{
var data = from dog in context.Reservations
where dog.EventCode == EventCode
select dog;
return data.ToList();
}
}
public List<ListDataItem> ListActiveBills()
{
using (var context = new RestaurantContext())
{
var result = from data in context.Bills
where !data.PaidStatus
&& data.Items.Count() > 0
select new ListDataItem()
{
DisplayText = data.BillID.ToString() + " (Table " + data.Table.TableNumber.ToString() + ")",
KeyValue = data.BillID
};
return result.ToList();
}
}
public List<CategorizedItemSale> TotalCategorizedItemSales()
{
using (var context = new RestaurantContext())
{
var results = from info in context.BillItems
orderby info.Item.Category.Description, info.Item.Description
select new CategorizedItemSale()
{
CategoryDescription = info.Item.Category.Description,
ItemDescription = info.Item.Description,
Quantity = info.Quantity,
Price = info.SalePrice * info.Quantity,
Cost = info.UnitCost * info.Quantity
};
return results.ToList();
}
}
public List<CategoryMenuItem> GetReportCategoryMenuItems()
{
using (RestaurantContext context = new RestaurantContext())
{
var results = from cat in context.Items
orderby cat.Category.Description, cat.Description
select new CategoryMenuItem()
{
CategoryDescription = cat.Category.Description,
ItemDescription = cat.Description,
Price = cat.CurrentPrice,
Calories = cat.Calories,
Comment = cat.Comment
};
return results.ToList();
}
}
public List<CategorizedItemSale> TotalCategorizedItemSales()
{
using (var context = new RestaurantContext())
{
var result = from info in context.BillItems
orderby info.Items.Category.Description, info.Items.Description
select new CategorizedItemSale
{
CategoryDescription = info.Items.Category.Description,
ItemDescription = info.Items.Description,
Quantity = info.Quantity,
// Do teh calculations inside the LINQ query
Price = info.SalePrice * info.Quantity,
Cost = info.UnitCost * info.Quantity
};
return result.ToList();
}
}
public Order GetBill(int billId)
{
using (var context = new RestaurantContext())
{
var result = from data in context.Bills
where data.BillID == billId
select new Order()
{
BillID = data.BillID,
Items = (from info in data.Items
select new OrderItem()
{
ItemName = info.Item.Description,
Price = info.SalePrice,
Quantity = info.Quantity
}).ToList()
};
return result.FirstOrDefault();
}
}
