public async Task <ProductDTO> BuyProduct(Guid userId, TypeProduct typeProduct)
{
ProductDTO product = null;
var creatorProduct = await _vendingMachineService.GetInfoProductAsync(typeProduct);
var depositCustomer = await _userDepositRepository.GetAmountDepositAsync(userId);
if (creatorProduct.Product.Price > depositCustomer)
{
throw new ApplicationException("The amount of the deposit is less than the value of the goods");
}
using (var scope = new TransactionScope(TransactionScopeAsyncFlowOption.Enabled))
{
try
{
// we reduce the buyer's deposit by the amount of the goods
await _userDepositRepository.RetrieveDepositAsync(userId, creatorProduct.Product.Price);
// release the goods from the car
product = await _vendingMachineService.CreateProductAsync(typeProduct);
var customerProduct = new DAL.Entities.CustomerProduct
{
CustomerId = userId,
Name = product.Name,
Price = product.Price
};
// save the issued goods to the user history
await _customerProductRepository.Create(customerProduct);
scope.Complete();
}
catch (System.Exception)
{
// TODO: Handle failure
throw new ApplicationException("The problem of buying product!");
}
}
return(product);
}
public async Task <ProductDTO> BuyProduct(Guid userId, TypeProduct typeProduct)
{
ProductDTO product = null;
var creatorProduct = await _vendingMachineService.GetInfoProductAsync(typeProduct);
var depositCustomer = await _userDepositRepository.GetAmountDepositAsync(userId);
if (creatorProduct.Product.Price > depositCustomer)
{
throw new ApplicationException("The amount of the deposit is less than the value of the goods");
}
using (var scope = new TransactionScope(TransactionScopeAsyncFlowOption.Enabled))
{
try
{
// уменьшаем депозит покупателя на сумму товара
await _userDepositRepository.RetrieveDepositAsync(userId, creatorProduct.Product.Price);
// выдать товар из машины
product = await _vendingMachineService.CreateProductAsync(typeProduct);
var customerProduct = new DAL.Entities.CustomerProduct
{
CustomerId = userId,
Name = product.Name,
Price = product.Price
};
// сохранить в историю юзера выданный товар
await _customerProductRepository.Create(customerProduct);
scope.Complete();
}
catch (System.Exception)
{
// TODO: Handle failure
throw new ApplicationException("The problem of buying product!");
}
}
return(product);
}