package project3;

import java.text.*;

public abstract class Book implements Comparable {
    private String author;
    private String title;
    private int pages;
    private int copiesSold;
    private double price;
    private DecimalFormat format;

    public Book(String title, String author, int pages, double price) {
        this.author = author;
        this.title = title;
        this.pages = pages;
        this.price = price;
        copiesSold = 0;
        format = new DecimalFormat("###,###,###,###.00");
    }

    public abstract String getType();

    public String getAuthor() {
        return author;
    }

    public String getTitle() {
        return title;
    }

    public int getPages() {
        return pages;
    }

    public int getCopiesSold() {
        return copiesSold;
    }

    public double getPrice() {
        return price;
    }

    public void incrementCopiesSold(int n) {
        if (n > 0)
            copiesSold += n;
    }

    public String getShortDescription() {
        return title + " by " + author + " sales: "+grossSalesString();
    }

    private String grossSalesString() {
        return "$ "+format.format(price*copiesSold);
    }

    public String getLongDescription() {
        return  "title:  " + title + "\n" +
                "author: " + author + "\n" +
                "pages:  " + pages + "\n" +
                "price:  $" + format.format(price) + "\n" +
                "sold:   " + copiesSold + "\n" +
                "gross:  "+ grossSalesString() + "\n" +
                "type:   " + getType() + "\n";

    }

    public int compareTo(Object obj) {
        Book otherBook = (Book)obj;
        return title.compareTo(otherBook.title);
    }

    public boolean equals(Book otherBook) {
        return title.equals(otherBook.title);
    }

}