private async Task DecreaseStock(long productId, int count, long stockActionId, DateTime stockActionDate, CancellationToken cancellationToken)
{
StockSnapshotModel stockSnapshotModel = await _dataContext.StockSnapshotModels
.FirstOrDefaultAsync(s => s.ProductId == productId, cancellationToken);
if (stockSnapshotModel == null)
{
throw new StockSnapshotNotFoundException(productId);
}
if (stockSnapshotModel.AvailableStock < count)
{
throw new InsufficientStockException(productId, stockSnapshotModel.AvailableStock, count);
}
stockSnapshotModel.DecreaseStock(count, stockActionId, stockActionDate);
await _dataContext.SaveChangesAsync(cancellationToken);
var stockCountDecreasedIntegrationEvent = new StockCountDecreasedIntegrationEvent(stockSnapshotModel.ProductId, stockSnapshotModel.StockActionId, count, stockSnapshotModel.AvailableStock, stockSnapshotModel.LastStockActionDate);
_integrationEventPublisher.AddEvent(stockCountDecreasedIntegrationEvent);
}
public async Task Consume(ConsumeContext <StockCountDecreasedIntegrationEvent> context)
{
StockCountDecreasedIntegrationEvent stockCountDecreasedIntegrationEvent = context.Message;
await SyncAvailableStock(stockCountDecreasedIntegrationEvent.ProductId, stockCountDecreasedIntegrationEvent.StockActionId, stockCountDecreasedIntegrationEvent.AvailableStock);
}
