public async Task <IActionResult> ExtractInventoryItem(long id)
{
var inventoryItem = await _context.InventoryItems.FindAsync(id);
var notification = new Notification {
Message = $"Item({inventoryItem.Id}) {inventoryItem.Name} extracted", Type = "extracted"
};
inventoryItem.Units -= 1;
_context.Entry(inventoryItem).State = EntityState.Modified;
try
{
await _context.SaveChangesAsync();
_messageRepository.Broadcast(notification);
}
catch (DbUpdateConcurrencyException)
{
if (!InventoryItemExists(id))
{
return(NotFound());
}
else
{
throw;
}
}
return(NoContent());
}
protected override async Task ExecuteAsync(CancellationToken stoppingToken)
{
while (!stoppingToken.IsCancellationRequested)
{
using (var scope = _scopeFactory.CreateScope())
{
var context = scope.ServiceProvider.GetService <InventoryContext>();
var inventoryItems = from itm in context.InventoryItems
where itm.Expired == false && itm.ExpiryDate <= DateTime.Now
select itm;
foreach (var item in inventoryItems)
{
var notification = new Notification {
Message = $"Item({item.Id}) {item.Name} expired on {item.ExpiryDate.ToShortDateString()}", Type = "expired"
};
_messageRepository.Broadcast(notification);
item.Expired = true;
context.Entry(item).State = EntityState.Modified;
}
try
{
await context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
throw;
}
}
await Task.Delay(30 * 1000, stoppingToken);
}
}
