package net.sourceforge.pain.logic.event.console.command;

import net.sourceforge.pain.logic.event.console.*;
import net.sourceforge.pain.logic.fn.*;
import net.sourceforge.pain.util.*;

public final class Password extends CommandHandler {
	public static final int STATE_INITIAL = 0;
	public static final int STATE_OLD_ASKED = 1;
	public static final int STATE_NEW_ASKED = 2;
	public static final int STATE_NEW_CONFIRM_ASKED = 3;

	private int state = STATE_INITIAL;
	private String newPass;

	public void processCommand() throws Exception {
		switch (state) {
			case STATE_INITIAL:
				askOld();
				console.setRawMode(this);
				break;
			case STATE_OLD_ASKED:
				askNew(console.popInputLine());
				break;
			case STATE_NEW_ASKED:
				askNewConfirm(console.popInputLine());
				break;
			case STATE_NEW_CONFIRM_ASKED:
				processConfirm(console.popInputLine());
				break;
			default:
				Log.debug("Password:BUG!!");
				console.setCommandMode();
		}
	}


	private void askOld() {
		MessageOutFn.out(console, "Enter your OLD password(ENTER to cancel):");
		state = STATE_OLD_ASKED;
	}

	private void askNew(String input) {
		if (input == null || input.trim().length() == 0) {
			console.setCommandMode();
			return;
		}
		if (!input.equals(player.getPassword())) {
			console.setCommandMode();
			MessageOutFn.outln(console, "{RInvalid password{x");
			return;
		}
		MessageOutFn.out(console, "Enter your NEW password(ENTER to cancel):");
		state = STATE_NEW_ASKED;
	}

	private void askNewConfirm(String input) {
		if (input == null || input.trim().length() == 0) {
			console.setCommandMode();
			return;
		}
		newPass = input;
		MessageOutFn.out(console, "Repeat your new password(ENTER to cancel):");
		state = STATE_NEW_CONFIRM_ASKED;
	}

	private void processConfirm(String input) {
		if (input == null || input.trim().length() == 0) {
			console.setCommandMode();
			return;
		}
		if (!newPass.equals(input)) {
			MessageOutFn.outln(console, "{wPasswords mismatch{x");
			askNew(player.getPassword());
			return;
		}

		player.setPassword(newPass);
		MessageOutFn.outln(console, "\n{WYour password has been changed to {Y'"+newPass+"'{W!{x");
		console.setCommandMode();
	}

	public void showHelp() {
		MessageOutFn.outln(console, command.name + ": changes password.");
	}
}