public static int MoveFurnitureOnMarket() { IFurnitureRepository furnRepo = new EFFurnitureRepository(); IEnumerable <Furniture> furnitureOnMarket = furnRepo.Furnitures.Where(f => f.CovenantId == -1).ToList(); var rand = new Random(); var amountToDelete = (int)Math.Floor(rand.NextDouble() * 2 + 1); var amountToAdd = (int)Math.Floor(rand.NextDouble() * 3 + 1); // delete some of the furniture currently available on the market if IEnumerable <Furniture> furnitureToDelete; if (furnitureOnMarket.Count() > 5) { furnitureToDelete = furnitureOnMarket.Take(amountToDelete); foreach (var f in furnitureToDelete) { furnRepo.DeleteFurniture(f.Id); } } // get the new count of furniture on market now furnitureOnMarket = furnRepo.Furnitures.Where(f => f.CovenantId == -1).ToList(); if (furnitureOnMarket.Count() < 15) { AddNewFurnitureToMarket(amountToAdd); } return(1); }