package dev.kske.chess.game;

import java.io.IOException;

import dev.kske.chess.board.FENString;
import dev.kske.chess.board.Move;
import dev.kske.chess.board.Piece.Color;
import dev.kske.chess.uci.UCIHandle;
import dev.kske.chess.uci.UCIListener;

/**
 * Acts as the interface between the {@link Game} class and the
 * {@link dev.kske.chess.uci} package enabling an engine to make moves in a
 * game.<br>
 * <br>
 * Project: <strong>Chess</strong><br>
 * File: <strong>UCIPlayer.java</strong><br>
 * Created: <strong>18.07.2019</strong><br>
 *
 * @since Chess v0.3-alpha
 * @author Kai S. K. Engelbart
 */
public class UCIPlayer extends Player implements UCIListener {

	private UCIHandle handle;

	/**
	 * Creates an instance of {@link UCIPlayer}.
	 *
	 * @param game       the game in which this player will be used
	 * @param color      the piece color that this player will control
	 * @param enginePath the path to the engine executable
	 */
	public UCIPlayer(Game game, Color color, String enginePath) {
		super(game, color);
		try {
			handle = new UCIHandle(enginePath);
			handle.registerListener(this);
			handle.start();
		} catch (IOException ex) {
			ex.printStackTrace();
		}
	}

	@Override
	public void requestMove() {
		handle.positionFEN(new FENString(board).toString());
		handle.go();
	}

	@Override
	public void cancelMove() {
		handle.stop();
	}

	@Override
	public void disconnect() {
		handle.quit();
	}

	@Override
	public void onIdName(String name) {
		this.name = name;
	}

	@Override
	public void onBestMove(String move) {
		Move moveObj = Move.fromLAN(move);
		game.onMove(this, moveObj);
	}

	@Override
	public void onBestMove(String move, Move ponderMove) {
		onBestMove(move);
	}

	@Override
	public void onCopyProtectionChecking() {
		System.out.println("Copy protection checking...");
	}

	@Override
	public void onCopyProtectionOk() {
		System.out.println("Copy protection ok");
	}

	@Override
	public void onCopyProtectionError() {
		System.err.println("Copy protection error!");
	}

	@Override
	public void onRegistrationChecking() {
		System.out.println("Registration checking...");
	}

	@Override
	public void onRegistrationOk() {
		System.out.println("Registration ok");
	}

	@Override
	public void onRegistrationError() {
		System.err.println("Registration error!");
	}
}