public void Execute()
{
if (!isRunned)
{
var needReturn = false;
lock (_lock)
{
if (isRunned)
{
needReturn = true;
}
else
{
isRunned = true;
}
}
if (needReturn)
{
return;
}
try
{
using (Db _db = new Db())
{
var lastProductID = _db.ShopSettings.FirstOrDefault(x => x.Key == LASTIDKEY);
int lastID = 0;
if (lastProductID != null)
{
int.TryParse(lastProductID.Value, out lastID);
lastProductID.Value = (lastID + porsionLimit).ToString();
_db.SaveChanges();
}
else
{
lastProductID = new ShopSetting()
{
Key = LASTIDKEY, Value = (lastID + porsionLimit).ToString()
};
_db.ShopSettings.Add(lastProductID);
_db.SaveChanges();
}
int pictureSize = LS.Get <Settings>().FirstOrDefault().ProductBoxImageSize;
if (pictureSize == 0)
{
pictureSize = 174;
}
var products = _db.Products.Where(x => x.HasImage && x.ID > lastID)
.Select(x => new
{
x.ID,
x.Image
}).Take(porsionLimit).ToList();
if (products.Count == 0)
{
//reset position
lastProductID.Value = 0.ToString();
_db.SaveChanges();
}
foreach (var p in products)
{
try
{
SF.GetImage(p.Image, pictureSize, pictureSize, true, true);
}
catch { }
}
}
}
finally
{
isRunned = false;
}
}
}