public static async void WithdrawMoneyAsync(decimal money, Shift shift) //изъ¤тие средств
{
using (CashboxDataContext db = new CashboxDataContext())
{
try
{
db.DBConnectionCheck();
db.Shifts.Attach(shift);
if (shift.CurrentCash >= money)
{
shift.CurrentCash -= money;
shift.CashWithdrawn += money;
await db.SaveChangesAsync();
TransactionCompleted?.Invoke(shift, new ShiftTransactionEventArgs("—редства успешно изъ¤ты!", true));
}
else
{
TransactionCompleted?.Invoke(shift, new ShiftTransactionEventArgs("Ќевозможно изъ¤ть введенную сумму, так как в кассе находитс¤ меньше средств, чем требуетс¤", false));
}
}
catch (Exception e)
{
TransactionCompleted?.Invoke(shift, new ShiftTransactionEventArgs(e.Message + "\n—редства изъ¤ты не были!", false));
}
}
}
public override async void ReturnItemAsync(Shift currShift) //асинхронный возврат
{
using (CashboxDataContext db = new CashboxDataContext())
{
try
{
db.DBConnectionCheck();
Return _return = db.Returns.FirstOrDefault(r => r.SId == currShift.SId && r.IId == this.IId);
Item item = db.Items.First(i => i.IId == this.IId);
if (_return == null)
{
db.Returns.Add(new Return(currShift, this));
}
else
{
_return.Number += this.Number;
}
item.Number += this.Number;
db.Shifts.Attach(currShift);
currShift.CashReturned += this.Price * this.Number;
currShift.CurrentCash -= this.Price * this.Number;
await db.SaveChangesAsync();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
}
public override async void SellItemAsync(Shift currShift) //асинхронная продажа
{
using (CashboxDataContext db = new CashboxDataContext())
{
try
{
db.DBConnectionCheck();
Sale sale = db.Sales.FirstOrDefault(s => s.SId == currShift.SId && s.IId == this.IId);
Item item = db.Items.First(i => i.IId == this.IId);
if (sale == null)
{
db.Sales.Add(new Sale(currShift, this));
}
else
{
sale.Number += this.Number;
}
item.Number -= this.Number;
db.Shifts.Attach(currShift);
currShift.CashReceived += this.Price * this.Number;
currShift.CurrentCash += this.Price * this.Number;
await db.SaveChangesAsync();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
}
public override async void ReturnItemAsync(Shift currShift) //асинхронный возврат товара
{
using (CashboxDataContext db = new CashboxDataContext())
{
try
{
db.DBConnectionCheck();
db.Shifts.Attach(currShift);
FreeItem fItem = db.FreeItems.First(f => f.SId == currShift.SId);
fItem.CashSum -= this.Price * this.Number;
currShift.CashReturned += this.Price * this.Number;
currShift.CurrentCash -= this.Price * this.Number;
await db.SaveChangesAsync();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
}
public static async void AddMoneyAsync(decimal money, Shift shift) //внесение средств
{
using (CashboxDataContext db = new CashboxDataContext())
{
try
{
db.DBConnectionCheck();
db.Shifts.Attach(shift);
shift.CashAdded += money;
shift.CurrentCash += money;
await db.SaveChangesAsync();
TransactionCompleted?.Invoke(shift, new ShiftTransactionEventArgs("—редства успешно добавлены!", true));
}
catch (Exception e)
{
TransactionCompleted?.Invoke(shift, new ShiftTransactionEventArgs(e.Message + "\n—редства добавлены не были!", false));
}
}
}
