package it.cavallium;

import it.tdlight.jni.TdApi;
import it.tdlight.tdlibsession.td.TdResult;
import java.util.Optional;
import java.util.function.Supplier;
import javafx.application.Platform;
import javafx.scene.control.Dialog;
import org.slf4j.event.Level;
import reactor.core.publisher.Mono;

public class MonoFxUtils {
	public static <T> Mono<T> showAndWait(Dialog<T> dialog) {
		return Mono.create(sink -> {
			Platform.runLater(() -> {
				dialog.setOnHidden(event -> {
					if (dialog.getResult() != null) {
						sink.success(dialog.getResult());
					} else {
						sink.success();
					}
				});
				dialog.show();
			});
		});
	}

	public static <T> Mono<Optional<T>> showAndWaitOpt(Dialog<T> dialog) {
		return Mono.create(sink -> {
			Platform.runLater(() -> {
				dialog.setOnHidden(event -> {
					sink.success(Optional.<T>ofNullable(dialog.getResult()));
				});
				dialog.show();
			});
		});
	}

	public static <T> Mono<T> runLater(Supplier<Mono<T>> mono) {
		return Mono.create(sink -> {
			Platform.runLater(() -> {
				mono.get().subscribe(value -> {
					sink.success(value);
				}, e -> {
					sink.error(e);
				}, () -> {
					sink.success();
				});
			});
		});
	}

	public static <T extends TdApi.Object> Mono<T> orElseLogSkipError(TdResult<T> optional) {
		if (optional.failed()) {
			App.getLogService().append(Level.ERROR, "Received TDLib error: " + optional.cause());
			return Mono.empty();
		}
		return Mono.just(optional.result());
	}
}