import javax.swing.*;

public class guiclass implements guiinterface
	{
	private booklistinterface db = null;

	public void go(booklistinterface booklist)
		{
		String[] commands = {"Add / Change Entry", "Remove Entry", "Sort by Author", "Sort by Title", "List by Author", "List by Borrower", "Book Info", "Exit"};

		db = booklist;
		int choice;

		do
			{
			choice = JOptionPane.showOptionDialog(null, "Select a Command", "PhoneDirectory", JOptionPane.YES_NO_CANCEL_OPTION,
				JOptionPane.QUESTION_MESSAGE, null, commands, commands[7]);

			switch (choice)
				{
				case 0: doadd(); break; // ask for data, add or edit entry from lib
				case 1: doremove(); break; // ask for title, remove from lib
				case 2: doauthorsort(); break; // sort lib by author, then show the lib
				case 3: dotitlesort(); break; // ditto, but by title
				case 4: dolistbyauthor(); break; // ask for author name, show his books (no lib sorting)
				case 5: dolistbyborrower(); break; // ditto, but for borrower
				case 6: dobookinfo(); break; // ask for title, give info for that book
				default:
				}
			} while (choice != 7);

		dosave();
		System.exit(0);
		}

	private void doadd()
		{
		String title, author, pagetotal, year, price, borrower, m;


		title = JOptionPane.showInputDialog("Enter title");
		if (title == null)
			return;

		author = JOptionPane.showInputDialog("Enter author");
		if (author == null)
			return;

		pagetotal = JOptionPane.showInputDialog("Enter the total number of pages");
		if (pagetotal == null)
			return;

		year = JOptionPane.showInputDialog("Enter year");
		if (year == null)
			return;

		price = JOptionPane.showInputDialog("Enter price");
		if (price == null)
			return;

		borrower = JOptionPane.showInputDialog("Enter borrower");
		if (borrower == null)
			return;

		if (db.addbook(title, author, pagetotal, year, price, borrower))
			m = "The book was added: ";
		else
			m = "The book was edited: ";

		m += title + ", " + author + ", " + pagetotal + ", " + year + ", " + price + ", " + borrower;
		JOptionPane.showMessageDialog(null, m);
		}

	private void doremove()
		{
		String t = JOptionPane.showInputDialog("Enter book title"), m;

		if (t == null)
			return;

		if (db.removebook(t))
			m = "The book was removed";
		else
			m = "The book is MIA!";

		JOptionPane.showMessageDialog(null, m);
		}

	private void doauthorsort()
		{
		JOptionPane.showMessageDialog(null, db.authorsort());
		}

	private void dotitlesort()
		{
		JOptionPane.showMessageDialog(null, db.titlesort());
		}

	private void dolistbyauthor()
		{
		String l = JOptionPane.showInputDialog("Enter book author");

		if (l == null) return;

		JOptionPane.showMessageDialog(null, db.listbyauthor(l));
		}

	private void dolistbyborrower()
		{
		String l = JOptionPane.showInputDialog("Enter book borrower");

		if (l == null) return;

		JOptionPane.showMessageDialog(null, db.listbyborrower(l));
		}

	private void dobookinfo ()
		{
		String l = JOptionPane.showInputDialog("Enter book title");

		if (l == null) return;

		JOptionPane.showMessageDialog(null, db.bookinfo(l));
		}

	private void dosave()
		{
		db.savefile();
		}

	}