public async Task CancelOpenOrder(FoodUser caller)
{
var order = await storage.GetOrder();
if (order == null || !order.IsOpen)
{
throw new BadRequestException("There is no valid order to cancel.");
}
const int minTimeout = 30;
if (caller.UniqueId != order.Owner.UniqueId &&
DateTimeOffset.UtcNow - order.DateCreated < TimeSpan.FromMinutes(minTimeout))
{
throw new BadRequestException($"Only order owner can cancel the order during first {minTimeout} minutes.");
}
await storage.DeleteOrder();
}
