package pr01;

public class GroceryProductList {
   
   private GroceryProduct product1 = null;
   private GroceryProduct product2 = null;
   private GroceryProduct product3 = null;
   
   public GroceryProductList() {
      
   }
   
   public String toString() {
      if (product1 == null)
         return "\n";
      if (product2 == null)
         return product1 + "\n";
      if (product3 == null)
         return product1 + "\n" + product2 + "\n";
      return product1 + "\n" + product2 + "\n" + product3 + "\n";
   }
   
   public boolean addGroceryProduct(GroceryProduct product) {
      if (product1 == null)
         product1 = product;
      else if (product2 == null)
         product2 = product;
      else if (product3 == null)
         product3 = product;
      else
         return false;
      return true;
   }
   
   public double getSellingPrice(String name, double weight) {
      if (product1 == null)
         return -1;
      if (product1.getName().equals(name))
         return product1.getSellingPrice(weight);
      if (product2 == null)
         return -1;
      if (product2.getName().equals(name))
         return product2.getSellingPrice(weight);
      if (product3 == null)
         return -1;
      if (product3.getName().equals(name))
            return product3.getSellingPrice(weight);
      return -1;
   }

}