public CoinChangesDto Handle(CoinBackCommand request)
{
var coinReturned = new CoinChangesDto
{
CoinChanges = new List <CoinChangeDto>()
};
foreach (var coinInserted in request.CoinsInserted)
{
var coinToBeRemoved =
_dbContext.VendingMachineCoins.Include(x => x.Currency)
.First(x => x.Currency.Id == coinInserted.CurrencyId);
coinToBeRemoved.Pieces = coinToBeRemoved.Pieces - coinInserted.Pieces;
coinReturned.CoinChanges.Add(new CoinChangeDto
{
CurrencyId = coinToBeRemoved.Currency.Id,
Pieces = coinInserted.Pieces,
CurrencyName = coinToBeRemoved.Currency.CoinName,
Value = coinToBeRemoved.Currency.Value
});
}
_dbContext.SaveChanges();
return(coinReturned);
}
public CoinChangesDto Handle(OrderProductCommand request)
{
var vendingMachineProduct =
_dbContext.VendingMachineProducts.First(x => x.Id == request.VendingMachineProductId);
vendingMachineProduct.Portion = vendingMachineProduct.Portion - 1;
var change = request.AmountInserted - vendingMachineProduct.Price;
var coinsInMachine =
_dbContext.VendingMachineCoins.Include(x => x.Currency).Where(x => x.Pieces != 0).OrderByDescending(x => x.Currency.Value).ToList();
var changes = new CoinChangesDto
{
CoinChanges = new List <CoinChangeDto>()
};
while (change != 0)
{
foreach (var coin in coinsInMachine)
{
while (change >= coin.Currency.Value && coin.Pieces != 0)
{
change = change - coin.Currency.Value;
coin.Pieces = coin.Pieces - 1;
if (changes.CoinChanges.FirstOrDefault(x => x.CurrencyId == coin.Currency.Id) == null)
{
changes.CoinChanges.Add(new CoinChangeDto
{
CurrencyName = coin.Currency.CoinName,
Value = coin.Currency.Value,
Pieces = 1,
CurrencyId = coin.Currency.Id
});
}
else
{
var updateCountOfChange = changes.CoinChanges.First(x => x.CurrencyId == coin.Currency.Id);
updateCountOfChange.Pieces = updateCountOfChange.Pieces + 1;
}
}
}
if (change != 0)
{
break;
}
_dbContext.SaveChanges();
}
return(changes);
}
public bool Handle(AddCoinsCommand request)
{
foreach (var coinWithPiece in request.CoinsWithPieces.Coins)
{
var currency = _dbContext.VendingMachineCoins.Include(x => x.Currency).First(x => x.Currency.Id == coinWithPiece.CurrencyId);
currency.Pieces = currency.Pieces + coinWithPiece.Pieces;
}
_dbContext.SaveChanges();
return(true);
}
public bool Handle(EmptyCoinsInVendingMachineCommand request)
{
var coinsInVendingMachine = _dbContext.VendingMachineCoins.ToList();
foreach (var vendingMachineCoin in coinsInVendingMachine)
{
vendingMachineCoin.Pieces = 0;
}
_dbContext.SaveChanges();
return(true);
}
public bool Handle(AddProductCommand request)
{
foreach (var product in request.Products.Products)
{
var productToBeUpdated =
_dbContext.VendingMachineProducts.Include(x => x.Product)
.First(x => x.Product.Id == product.ProductId);
productToBeUpdated.Portion = productToBeUpdated.Portion + product.Portion;
productToBeUpdated.Price = product.Price;
}
_dbContext.SaveChanges();
return(true);
}
public ProductsAvailableDto Handle(GetProductsAvailableInVendingMachineWithCoinsQuery request)
{
decimal insertedMoney = 0;
if (request.CoinsInserted == null)
{
request.CoinsInserted = new List <CoinInsertedDto>();
}
var productsDisplay = new ProductsAvailableDto
{
ProductsAvailable = new List <ProductAvailableDto>(),
CoinsInserted = new List <CoinInsertedDto>(),
TotalAmountInserted = 0
};
if (request.CoinsInserted.Count != 0)
{
foreach (var coinInserted in request.CoinsInserted)
{
var currency = _dbContext.Currencies.First(x => x.Id == coinInserted.CurrencyId);
var amount = currency.Value;
insertedMoney = insertedMoney + (amount * coinInserted.Pieces);
productsDisplay.CoinsInserted.Add(new CoinInsertedDto
{
CurrencyId = coinInserted.CurrencyId,
Pieces = coinInserted.Pieces
});
var currencyInVendingMachine =
_dbContext.VendingMachineCoins.Include(x => x.Currency).First(x => x.Currency.Id == currency.Id);
currencyInVendingMachine.Pieces = currencyInVendingMachine.Pieces + coinInserted.Pieces;
}
productsDisplay.TotalAmountInserted = insertedMoney;
_dbContext.SaveChanges();
}
var vendingMachineProducts = _dbContext.VendingMachineProducts.Include(x => x.Product).ToList();
foreach (var vendingMachineProduct in vendingMachineProducts)
{
var product = new ProductAvailableDto
{
ProductName = vendingMachineProduct.Product.ProductName,
Price = vendingMachineProduct.Price,
VendingMachineProductId = vendingMachineProduct.Id
};
if (vendingMachineProduct.Portion != 0 && vendingMachineProduct.Price <= insertedMoney && new ChangeHelper().CanGiveChange(insertedMoney, vendingMachineProduct.Id))
{
product.Available = true;
product.Message = "Available";
}
else
{
product.Available = false;
if (vendingMachineProduct.Portion == 0)
{
product.Message = "Not Available";
}
if (vendingMachineProduct.Price > insertedMoney)
{
product.Message = "Insufficient Amount";
}
if (new ChangeHelper().CanGiveChange(insertedMoney, vendingMachineProduct.Id))
{
product.Message = "Cannot Give Change";
}
}
productsDisplay.ProductsAvailable.Add(product);
}
return(productsDisplay);
}