package oopMidAssignment;

//IT19113982
//M.R.M Rikas

import java.util.Scanner;
import java.util.InputMismatchException;
import java.util.Random;

abstract class User {

    protected String name;
    protected String email;

    //DEFAULT CONSTRUCTORS
    public User() {

    }

    //OVERLOAD CONSTRUCTORS
    public User(String name, String email) {
        this.name = name;
        this.email = email;
    }
    //OVERLOAD CONSTRUCTORS
    public User(User NewUser){
        this.name= NewUser.name;
        this.email = NewUser.email;
    }

    //ABSTRACT METHOD
    abstract void printDetails();
}


class Operators extends User implements Calculations {
    protected int employeeNumber;
    protected String designation;

    //OVERLOAD CONSTRUCTOR
    public Operators(String name,String email,int employeeNumber,String designation){
        super.name = name;
        super.email = email;
        this.employeeNumber = employeeNumber;
        this.designation = designation;
    }

    //Abstract Method
    public void printDetails(){
        System.out.println("Operator name is " + name);
        System.out.println("Operator email is " + email);
        System.out.println("Operator employee number is " + employeeNumber);
        System.out.println("Operator designation is " + designation);
        System.out.println("\n");
    }

    //INTERFACE METHOD (IMPLEMENTATION)
    public void calculateRevenue(Artists A1) {
        int NumberOfDownloads = 0;
        Scanner D = new Scanner(System.in);

        //EXCEPTION
        try {
            System.out.println("Enter the  number of downloads :");
            NumberOfDownloads = D.nextInt();
        }
        catch (InputMismatchException n){
            System.out.println("InputMismatchException Exception!");
            System.out.println("Programme terminated !");
            System.exit(0);//TERMINATE JVM
        }

        double revenue;
        double average = 0;

        //EXCEPTION
        try {
            for (int i=0;i<=A1.numOfSongs-1;i++) {
                for(int j=0;j<=0;j++) {
                    String X;
                    X=A1.song[i][j+1];
                    average=average+Integer.parseInt(X);//CONVERT STRING TO INTEGER
                }
            }
        }catch(ArrayIndexOutOfBoundsException e){
            System.out.print("Array Index Out Of Bounds!");
        }
        average=average/5;
        revenue=average*NumberOfDownloads;
        System.out.println("Artist : "+A1.name);
        System.out.println("Album Revenue is LKR "+revenue);
    }


}

class Artists extends User {


    String genre;
    int numOfSongs;

    //STRING ARRAY
    String song[][] = new String[5][2];

    //OVERLOAD CONSTRUCTOR
    public Artists(String name,String email,String genre,int numOfSongs){
        super.name = name;
        super.email = email;
        this.genre = genre;
        this.numOfSongs = numOfSongs;
    }

    //STORE AND DISPLAY
    public void ArtistDetails() {
        int x, y;
        Scanner A1 = new Scanner(System.in);
        // FOR LOOP FOR STORE THE VALUES OF SONGS
        for (x = 0; x <=this.numOfSongs-1; x++) {
            for (y = 0; y <=0; y++) {

                //ADDING SONG NAMES TO ARRAY
                System.out.println("Enter Song : ");
                song[x][y] = A1.nextLine();

                //EXCEPTION
                try {
                    //ADD SONG RATE TO THE ARRAY
                    System.out.println("Enter Rate : ");
                    String P1 = A1.nextLine();
                    Integer.parseInt(P1);
                    song[x][y+1]=P1;

                } catch (NumberFormatException e) {
                    System.out.println("Number Format Exception! ");
                }
            }

        }
    }
    public void printDetails(){
        System.out.println("Artist name is " + name);
        System.out.println("Artist email is " + email);
        System.out.println("Artist music genre is " + genre);
        System.out.println("Number of songs is " + numOfSongs);

        System.out.println("Song list is : ");

        for (int i=0;i<=this.numOfSongs-1;i++) {
            for(int j=0;j<=0;j++) {
                System.out.println(song[i][j]+"  "+song[i][j+1]);
            }
        }
        System.out.println("\n");

    }

}

interface Calculations {
    //DEFINE CALCULATE REVENUE METHOD
    void calculateRevenue(Artists A1);
}

public class PlayASong {
    public static void main(String[] args){

        //CREATE ARTISTS OBJECT
        Artists A1 = new Artists("Pablo Albo", "pablo@gmail.com", "POP",5);

        //CREATE OPERATORS OBJECT
        Operators O1 = new Operators(  "Simon" , "simon@playsong.com", 123 , "Accountant");

        //CALLING METHODS
        A1.ArtistDetails();
        A1.printDetails();

        O1.printDetails();
        O1.calculateRevenue(A1);

    }
}