private async Task ProcessItemAdjustmentAsync(long itemId, int quantity, AdjustmentType adjustmentType, QuantityType quantityType = QuantityType.Both)
{
var item = await context.Items.FindAsync(itemId);
if (item == null)
{
throw new ArgumentException("Item does not exist.");
}
switch (quantityType)
{
case QuantityType.Quantity:
AdjustQuantity(item, adjustmentType, quantity);
break;
case QuantityType.StockQuantity:
AdjustStockQuantity(item, adjustmentType, quantity);
break;
case QuantityType.Both:
AdjustQuantity(item, adjustmentType, quantity);
AdjustStockQuantity(item, adjustmentType, quantity);
break;
}
if (item.Quantity < 0)
{
throw new QuantityBelowZeroException("Insufficient quantity.");
}
context.Entry(item).State = EntityState.Modified;
}
/// <inheritdoc />
public void CheckItemsForDeletion <T, T1>(IEnumerable <T> originalList, IEnumerable <T1> updatedList)
where T : ModelBase
where T1 : DTOBase
{
foreach (var item in originalList)
{
if (!updatedList.Any(a => a.Id == item.Id))
{
logger.LogInformation($"Marking {item.GetType()} with id # {item.Id} for deletion.");
context.Entry(item).State = EntityState.Deleted;
}
}
}