import java.awt.EventQueue;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.ListIterator;
import javax.swing.JFrame;
import java.awt.Color;
import javax.swing.JTextField;
import javax.swing.JLabel;
import javax.swing.JButton;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.JTextPane;

public class Lab12 {

	static class Elem {
		String family;
		String name;
		String middle;
		int phone;
	}

	static LinkedList<Elem> list = new LinkedList<Elem>();

	private JFrame frame;
	private JTextField inputFamily;
	private JTextField inputName;
	private JTextField inputMiddle;
	private JTextField inputPhone;

	public static void main(String[] args) {
		EventQueue.invokeLater(new Runnable() {
			public void run() {
				try {
					Lab12 window = new Lab12();
					window.frame.setVisible(true);
				} catch (Exception e) {
					e.printStackTrace();
				}
			}
		});
	}

	public int CheckDelete(Elem node) {
		Iterator<Elem> iter = list.iterator();
		int count = 0;

		while (iter.hasNext()) {
			Elem temp = iter.next();
			if (temp.family.equals(node.family) || temp.name.equals(node.name) || temp.middle.equals(node.middle) || temp.phone == node.phone) return count;
			count++;
		}

		return -1;
	}

	public Lab12() {
		initialize();
	}

	private void initialize() {
		frame = new JFrame();
		frame.getContentPane().setBackground(Color.LIGHT_GRAY);
		frame.setBounds(100, 100, 631, 370);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.getContentPane().setLayout(null);

		inputFamily = new JTextField();
		inputFamily.setBounds(108, 11, 227, 20);
		frame.getContentPane().add(inputFamily);
		inputFamily.setColumns(10);

		inputName = new JTextField();
		inputName.setColumns(10);
		inputName.setBounds(108, 42, 227, 20);
		frame.getContentPane().add(inputName);

		inputMiddle = new JTextField();
		inputMiddle.setColumns(10);
		inputMiddle.setBounds(108, 73, 227, 20);
		frame.getContentPane().add(inputMiddle);

		inputPhone = new JTextField();
		inputPhone.setColumns(10);
		inputPhone.setBounds(108, 104, 227, 20);
		frame.getContentPane().add(inputPhone);

		JLabel familyLabel = new JLabel("Фамилия:");
		familyLabel.setBounds(10, 14, 67, 14);
		frame.getContentPane().add(familyLabel);

		JLabel nameLabel = new JLabel("Имя:");
		nameLabel.setBounds(10, 45, 46, 14);
		frame.getContentPane().add(nameLabel);

		JLabel middleLabel = new JLabel("Отчество:");
		middleLabel.setBounds(10, 76, 67, 14);
		frame.getContentPane().add(middleLabel);

		JLabel phoneLabel = new JLabel("Телефон:");
		phoneLabel.setBounds(10, 107, 102, 14);
		frame.getContentPane().add(phoneLabel);

		JButton submitButton = new JButton("Добавить");
		submitButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				Elem elem = new Elem();
				elem.family = inputFamily.getText();
				elem.name = inputName.getText();
				elem.middle = inputMiddle.getText();
				elem.phone = Integer.parseInt(inputPhone.getText());

				list.add(elem);

				inputFamily.setText(null);
				inputName.setText(null);
				inputMiddle.setText(null);
				inputPhone.setText(null);
			}
		});
		submitButton.setBounds(345, 11, 125, 113);
		frame.getContentPane().add(submitButton);

		JTextPane outputPanel = new JTextPane();
		outputPanel.setBackground(Color.WHITE);
		outputPanel.setEditable(false);
		outputPanel.setBounds(10, 169, 595, 165);
		frame.getContentPane().add(outputPanel);

		JButton forwardButton = new JButton("Вывод в прямом");
		forwardButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				Iterator<Elem> iter = list.iterator();
				String output = new String();
				while (iter.hasNext()) {
					Elem elem = new Elem();
					elem = iter.next();
					output += elem.family + " " + elem.name + " " + elem.middle + " " + elem.phone + " \n";
				}
				outputPanel.setText(output);
			}
		});
		forwardButton.setBounds(10, 135, 175, 23);
		frame.getContentPane().add(forwardButton);

		JButton outputButton = new JButton("Вывод в обратном");
		outputButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				ListIterator<Elem> iter = list.listIterator();
				String output = new String();
				while (iter.hasNext()) {
					iter.next();
				}
				while (iter.hasPrevious()) {
					Elem elem = new Elem();
					elem = iter.previous();
					output += elem.family + " " + elem.name + " " + elem.middle + " " + elem.phone + " \n";
				}
				outputPanel.setText(output);
			}
		});
		outputButton.setBounds(195, 135, 175, 23);
		frame.getContentPane().add(outputButton);

		JButton familyButton = new JButton("По фамилии");
		familyButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				String toFind = inputFamily.getText();
				Iterator<Elem> iter = list.iterator();
				String output = new String();
				while (iter.hasNext()) {
					Elem elem = new Elem();
					elem = iter.next();
					if (elem.family.equals(toFind)) {
						output = "Найдено: " + elem.family + " " + elem.name + " " + elem.middle + " " + elem.phone;
						break;
					} else output = "Такого нет!";

				}
				inputFamily.setText(null);
				outputPanel.setText(output);
			}
		});
		familyButton.setBounds(480, 10, 125, 52);
		frame.getContentPane().add(familyButton);

		JButton deleteButton = new JButton("Удалить элемент");
		deleteButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				Elem elem = new Elem();

				elem.family = inputFamily.getText();
				elem.name = inputName.getText();
				elem.middle = inputMiddle.getText();
				if (!inputPhone.getText().equals("")) elem.phone = Integer.parseInt(inputPhone.getText());

				int del = CheckDelete(elem);
				if (del != -1) {
					list.remove(del);
					outputPanel.setText("Удалено.");
				} else outputPanel.setText("Не найдено совпадений.");

			}
		});
		deleteButton.setBounds(439, 135, 166, 23);
		frame.getContentPane().add(deleteButton);

		JButton nameButton = new JButton("По имени");
		nameButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				String findName = inputName.getText();
				String output = "";
				Iterator<Elem> iter = list.iterator();
				while (iter.hasNext()) {
					Elem elem = iter.next();
					if (elem.name.equals(findName)) output = output + elem.family + " " + elem.name + " " + elem.middle + " " + elem.phone + "\n";
				}
				inputName.setText(null);
				outputPanel.setText(output);
			}
		});
		nameButton.setBounds(480, 73, 126, 51);
		frame.getContentPane().add(nameButton);
	}
}