private void Validate(ModifyBatchStockRequest RequestModel)
{
if (string.IsNullOrWhiteSpace(RequestModel.ReasonForChange))
{
throw new ArgumentException("Must provide a reasong for modifying the stock");
}
if (RequestModel.NewUnitAmount < 0)
{
throw new ArgumentException("Amount cannot be negative");
}
}
public async Task <Batch> ExecuteAsync(ModifyBatchStockRequest RequestModel)
{
Validate(RequestModel);
var batch = await unitOfWork.Batches.GetAsync(RequestModel.BatchId);
if (batch == null)
{
throw new KeyNotFoundException($"Batch with id {RequestModel.BatchId} not found");
}
var StockChange = new BatchStockChange(batch.RemainingUnits, RequestModel.NewUnitAmount, RequestModel.ReasonForChange);
batch.RemainingUnits = StockChange.NewAmount;
batch.History.Add(StockChange);
await unitOfWork.CompleteAsync();
return(batch);
}