public async Task <bool> ListCarsAsync(int carId, int amount, int dealerId)
{
//check if car exists
var car = await _carRepository.GetCarByIdAsync(carId);
if (car == null)
{
throw new KeyNotFoundException();
}
//get stock for the dealer and update accordingly
var stock = await _stockRepository.GetStockAsync(car.Id, dealerId);
if (stock == null)
{
stock = new Stock
{
CarId = carId,
Amount = amount,
DealerId = dealerId
};
return(await _stockRepository.CreateStockAsync(stock));
}
else
{
stock.Amount += amount;
return(await _stockRepository.UpdateStockAsync(stock));
}
}
public async Task <StockDetailsModel> CreateStockAsync(StockCreateModel createModel)
{
if (createModel == null)
{
throw new ArgumentNullException(nameof(createModel));
}
if (await _stockRepository.HasStockWithIsinAsync(createModel.Isin))
{
throw new ArgumentException();
}
var stockEntity = _mapper.Map <Stock>(createModel);
var createdEntity = await _stockRepository.CreateStockAsync(stockEntity);
return(_mapper.Map <StockDetailsModel>(createdEntity));
}
