public async Task <ObjectResult> PostPurchase(PurchaseDto purchaseDto)
{
var currency = await _context.Currencies.FirstOrDefaultAsync(x => x.Id == purchaseDto.CurrencyId);
if (currency == null)
{
return(new BadRequestObjectResult(new ApiResponseDto
{
Success = false,
Message = "Currency not found"
}));
}
var currencyPrice = await _currencyPriceServices.GetPriceByCurrencyName(currency.Source);
if (currencyPrice == null)
{
return(new BadRequestObjectResult(new ApiResponseDto
{
Success = false,
Message = "Could not get the currency price"
}));
}
var price = currency.MultiplyBy.HasValue ? currencyPrice.Buy * currency.MultiplyBy.Value : currencyPrice.Buy;
var today = DateTimeOffset.Now;
var firstDayOfMonth = new DateTime(today.Year, today.Month, 1);
var lastDayOfMonth = firstDayOfMonth.AddMonths(1).AddDays(-1);
var purchasesInCurrentMonth = await _context.Purchases.Where(x =>
x.UserId == purchaseDto.UserId &&
x.CreatedDate > firstDayOfMonth &&
x.CreatedDate < lastDayOfMonth).SumAsync(x => x.Quantity / x.Price);
if (purchasesInCurrentMonth + purchaseDto.Quantity / price > currency.MonthlyLimit)
{
return(new BadRequestObjectResult(new ApiResponseDto
{
Success = false,
Message = $"Purchase limit for this currency is {currency.MonthlyLimit} by month"
}));
}
var purchase = new Purchase
{
UserId = purchaseDto.UserId,
Quantity = purchaseDto.Quantity,
Price = price,
CurrencyId = purchaseDto.CurrencyId
};
_context.Purchases.Add(purchase);
await _context.SaveChangesAsync();
return(new OkObjectResult(new ApiResponseDto
{
Success = true
}));
}
public async Task <IActionResult> GetCurrenciesPrices()
{
var currencies = await _context.Currencies.Where(x => !x.Disabled).ToListAsync();
var result = new List <CurrencyPriceDto>();
foreach (var currency in currencies)
{
var currencyPrice = await _currencyPriceServices.GetPriceByCurrencyName(currency.Source);
currencyPrice.Name = currency.Name;
result.Add(currencyPrice);
}
return(new OkObjectResult(result));
}
