public async Task <EnqueuePositionResult> AddToQueue(EnqueuePosition item)
{
if (item is null)
{
throw new ArgumentNullException(nameof(item));
}
CurrentQueueNumber currentNumber = await _repository.GetCurrentNumber(item.ServiceType);
currentNumber.NextNumber++;
await _repository.UpadteNextNumber(currentNumber, item.ServiceType);
QueueItem newItem = new QueueItem()
{
UserID = item.UserID,
UserNumber = currentNumber.NextNumber
};
await _repository.AddItem(item.ServiceType, newItem);
return(new EnqueuePositionResult {
UserNumber = newItem.UserNumber
});
}