package chess.ai.alphabeta;
import chess.ai.ais.AlphaBetaAI;

/**
 * Print the action of an alpha-beta bot on the console.
 * @see AlphaBetaAI
 */
public class AlphaBetaConsolePrinter {

	private final AlphaBetaAI ai;
	private long lastTime;

	public void connect() {
		ai.onStartEval.connect((moveCount) -> {
			this.lastTime = System.currentTimeMillis();
			System.out.println("Evaluating " + moveCount + " moves ...");
		});

		ai.onProgress.connect((progress) -> {
			System.out.printf("Progress : %.2f %%    \r", progress * 100.0f);
		});

		ai.onCompleteEval.connect((bestMove) -> {
			System.out.println("Best move : " + bestMove + "                 ");
			System.out.println("Took " + (System.currentTimeMillis() - this.lastTime) + "ms");
		});
	}

	public AlphaBetaConsolePrinter(AlphaBetaAI ai) {
		this.ai = ai;
	}
}