// return change to the buyer
public async Task GetDepositCustomerAsync(Guid userId)
{
using (var scope = new TransactionScope(TransactionScopeAsyncFlowOption.Enabled))
{
try
{
// find the amount of the deposit
var amoutDeposit = await _userDepositRepository.GetAmountDepositAsync(userId);
// write off the user's deposit
await _userDepositRepository.RetrieveDepositAsync(userId);
// take coins from VM
var coins = await _vendingMachineService.RetrieveCoinsAsync(amoutDeposit);
// give a coin Customer
await _purseRepository.AddCoinsAsync(userId, coins);
scope.Complete();
}
catch (System.Exception)
{
// TODO: Handle failure
throw new ApplicationException("The problem of receiving a deposit by the user!");
}
}
}
// вернуть сдачу покупателю
public async Task GetDepositCustomerAsync(Guid userId)
{
using (var scope = new TransactionScope(TransactionScopeAsyncFlowOption.Enabled))
{
try
{
// находим сумму депозита
var amoutDeposit = await _userDepositRepository.GetAmountDepositAsync(userId);
// списываем депозит юзера
await _userDepositRepository.RetrieveDepositAsync(userId);
// забираем монетки у VM
var coins = await _vendingMachineService.RetrieveCoinsAsync(amoutDeposit);
// отдаем монетку Customer
await _purseRepository.AddCoinsAsync(userId, coins);
scope.Complete();
}
catch (System.Exception)
{
// TODO: Handle failure
throw new ApplicationException("The problem of receiving a deposit by the user!");
}
}
}