import java.util.*; // using java libraries
 
public class Inventory6 {
 
    public static void main(String[] args) {
 
        FeatDVD dvd;
        Inventory inventory = new Inventory();
 
        dvd = new FeatDVD(0, "Bad Boys", 5, 12.99, "Comedy");
        inventory.add(dvd);
 
        dvd = new FeatDVD(1, "Color Purple", 7, 14.99, "Drama");
        inventory.add(dvd);
 
        dvd = new FeatDVD(2, "Madea Family Reunion", 6, 13.99, "Drama");
        inventory.add(dvd);
 
        dvd = new FeatDVD(3, "Diary of a Mad Black Woman", 3, 15.99, "Drama");
        inventory.add(dvd);
 
        dvd = new FeatDVD(4, "Forest Gump", 8, 11.99, "Comedy");
        inventory.add(dvd);
 
        dvd = new FeatDVD(5, "How Stella Got Her Groove Back", 2, 12.99, "Drama");
        inventory.add(dvd);        
 
        dvd = new FeatDVD(6, "What's love Got to do With it", 7, 15.99, "Drama");
        inventory.add(dvd);
 
        dvd = new FeatDVD(7, "Purple Rain", 7, 11.99, "Drama");
        inventory.add(dvd);
 
        inventory.display();
        GUI gui = new GUI(inventory); // Start the GUI
 
        OutputDVD output = new OutputDVD(inventory);
 
    } // end main
 
} // end class Inventory6
 
 
 
/**** Class decribes DVD while demostrating polymorphism and inheritance**/
 
class DVD implements Comparable
{
    private int dvditem;
    private String dvdtitle; 
    private int dvdstock;
    private double dvdprice;
 
    // Constructor  
    DVD() 
    {
       dvditem  = 0;
       dvdtitle = "";
       dvdstock = 0;
       dvdprice = 0;
    }// end constructor
 
    //constructor initializes variables
    DVD(int item, String title, int stock, double price)
    {
       this.dvditem  = item;
       this.dvdtitle = title;
       this.dvdstock = stock;
       this.dvdprice = price; 
    } 
 
    private void setTitle( String title )
    {
        this.dvdtitle = title;
    } 
 
    public String getdvdTitle() 
    {
        return dvdtitle;
    } 
 
    private void setdvdItem( int item ) 
    {
        this.dvditem = item;
    } 
 
    public int getdvdItem() 
    {
        return dvditem;
    } 
 
    private void setdvdStock( int stock ) 
    {
        this.dvdstock = stock;
    } 
 
    public int getdvdStock() 
    {
        return dvdstock;
    } 
 
    private void setdvdPrice (double price ) 
    {
        this.dvdprice = price;
    } 
 
    public double getdvdPrice()
    {
        return dvdprice;
    } 
 
    public double getValue() 
    {
        double value = dvdstock * dvdprice; 
        return value;
    } 
 
    // This method tells the sort method what is to be sorted
    public int compareTo(Object o)
    {
        return dvdtitle.compareTo(((DVD) o).getdvdTitle());
    }
 
    // This method passes the format for the string
    public String toString() 
    {
        return String.format("Unit number:%d %12s  Units:%2d  Price: $%5.2f  Movie value: $%6.2f",
            dvditem, dvdtitle, dvdstock, dvdprice, getValue());
    }
} // end class DVD  
 
 
/**** This is a subclass that adds 5% restocking fee and new feature genres***/
 
class FeatDVD extends DVD
{
     private String genres;
 
     // class constructor		
     FeatDVD(int item, String title, int stock, double price, String genres)
     {
          super(item, title, stock, price);
          this.genres = genres;
     }
     public String getGenres()
     {
          return genres;
     }
 
     public double getValue()
     {// getvalue method overrides
      // getvalue method in the superclass
          double value = 1.05F * super.getValue();
          return value;
     }// end getValue method
 
     public String toString()
     {//toString method overrides the superclass toString method
      //adding another fields
         return super.toString() + "Genre:" + genres;	
     }// end toString method
 
} // end class FeatDVD
 
 
/*****class has inventory of DVDs.
* This class has methods to add and display dvds****/
 
class Inventory
{
    private DVD[] dvds;     
    private int nCount;
 
    // constructor
    Inventory()
    {
       dvds = new DVD[8];
       nCount = 0;
    }
 
 
	public int getNcount()
	{
		return nCount;
	}
 
    // method adds DVD to inventory
    public void add(DVD dvd)
    {
       dvds[nCount] = dvd;
       ++nCount;
       sort();
    }
 
    public void delete(int n)
    {
       if (nCount > 0)
       {
          dvds[n] = dvds[nCount-1];
          --nCount;
          sort();
       }
    }
    public int search(String seek)
    {
 
       int n = -1
       for (int i = 0; i < nCount; i++) {
           if (seek.equalsIgnoreCase(dvds[i].getdvdTitle())) {
               n = i;
               break;
 
           }
       }
       return n;
    }
 
    public FeatDVD getFeatDVD(int n)
    {
       return (FeatDVD) dvds[n];
    }
    // method calculates total value of inventory
    public double getTotalValue()
    {
 
       double totalValue = 0;
       for (int i = 0; i < nCount; i++)
            totalValue = dvds[i].getValue();
       return totalValue;
    } // end getTotalValue
 
    public DVD getDVD(int n) //use in GUI
    {// protects n and keep in range
       if (n<0)
           n = 0;
       else if (n >= nCount)
           n = nCount - 1;
       return (n >= 0) ? dvds[n] : null;
     }
 
 
    // sorts the DVDs
    private void sort()
    {
 
       if (nCount > 0)
          Arrays.sort(dvds, 0, nCount);
    }// end sort method
 
    public void display()
    {
       for (int i = 0; i < nCount; i++)
          System.out.printf("%2d:  %s\n", i, getFeatDVD(i));
    }
 
 
} // end class Inventory