public Task <bool> Update(IOrder order)
{
lock (ClientLock)
{
if (ClientManager.Get(order.ClientUsername) == null)
{
return(Task.FromResult(false));
}
lock (ProductLock)
{
double totalPrice = 0.0;
foreach (KeyValuePair <uint, uint> pair in order.ProductIdQuantityMap)
{
IProduct product = ProductManager.Get(pair.Key);
if (product == null)
{
return(Task.FromResult(false));
}
totalPrice += product.Price * pair.Value;
}
order.Price = totalPrice;
lock (OrderLock)
{
return(Task.FromResult(OrderManager.Update(order)));
}
}
}
}
public Task <IOrder> CreateOrder(string clientUsername, DateTime orderDate, Dictionary <uint, uint> productIdQuantityMap, DateTime?deliveryDate)
{
lock (ClientLock)
{
if (ClientManager.Get(clientUsername) == null)
{
return(null);
}
lock (ProductLock)
{
double totalPrice = 0.0;
foreach (KeyValuePair <uint, uint> pair in productIdQuantityMap)
{
IProduct product = ProductManager.Get(pair.Key);
if (product == null)
{
return(null);
}
totalPrice += product.Price * pair.Value;
}
lock (OrderLock)
{
try
{
return(Task.FromResult(OrderManager.Get(OrderManager.Create(
clientUsername, orderDate, productIdQuantityMap, totalPrice, deliveryDate))));
}
catch (Exception)
{
return(null);
}
}
}
}
}
public Task <IClient> GetClient(string username)
{
lock (ClientLock)
{
return(Task.FromResult(ClientManager.Get(username)));
}
}
public Task <IClient> CreateClient(string username, string firstName, string lastName, string street, uint streetNumber,
string phoneNumber)
{
lock (ClientLock)
{
try
{
return(Task.FromResult(ClientManager.Get(ClientManager.Create(username, firstName, lastName, street, streetNumber, phoneNumber))));
}
catch (Exception)
{
return(null);
}
}
}
public Task <bool> RemoveClient(IClient client)
{
lock (ClientLock)
{
lock (OrderLock)
{
if (ClientManager.Get(client.Username) == null)
{
return(Task.FromResult(false));
}
foreach (uint orderId in OrderManager.GetAll().Where(order => order.ClientUsername == client.Username).Select(o => o.Id))
{
OrderManager.Remove(orderId);
}
return(Task.FromResult(ClientManager.Remove(client.Username)));
}
}
}
