package io.gitlab.jfronny.libjf.generic;

import java.util.Objects;
import java.util.function.*;

public class Try {
    public static void orElse(ThrowingRunnable<?> tr, Consumer<Throwable> alternative) {
        Objects.requireNonNull(tr).addHandler(alternative).run();
    }

    public static <T> T orElse(ThrowingSupplier<T, ?> tr, Function<Throwable, ? extends T> alternative) {
        return Objects.requireNonNull(tr).addHandler(alternative).get();
    }

    public static void orThrow(ThrowingRunnable<?> tr) {
        Objects.requireNonNull(tr).orThrow().run();
    }

    public static <T> T orThrow(ThrowingSupplier<T, ?> tr) {
        return Objects.requireNonNull(tr).orThrow().get();
    }

    public static <T, U> BiConsumer<T, U> handle(ThrowingBiConsumer<T, U, ?> tr, Consumer<Throwable> handler) {
        return Objects.requireNonNull(tr).addHandler(handler);
    }

    public static <T, U, R> BiFunction<T, U, R> handle(ThrowingBiFunction<T, U, R, ?> tr, Function<Throwable, ? extends R> handler) {
        return Objects.requireNonNull(tr).addHandler(handler);
    }

    public static BooleanSupplier handle(ThrowingBooleanSupplier<?> tr, Predicate<Throwable> handler) {
        return Objects.requireNonNull(tr).addHandler(handler);
    }

    public static <T> Consumer<T> handle(ThrowingConsumer<T, ?> tr, Consumer<Throwable> handler) {
        return Objects.requireNonNull(tr).addHandler(handler);
    }

    public static <T, R> Function<T, R> handle(ThrowingFunction<T, R, ?> tr, Function<Throwable, ? extends R> handler) {
        return Objects.requireNonNull(tr).addHandler(handler);
    }

    public static <T> Predicate<T> handle(ThrowingPredicate<T, ?> tr, Predicate<Throwable> handler) {
        return Objects.requireNonNull(tr).addHandler(handler);
    }

    public static Runnable handle(ThrowingRunnable<?> tr, Consumer<Throwable> handler) {
        return Objects.requireNonNull(tr).addHandler(handler);
    }

    public static <T> Supplier<T> handle(ThrowingSupplier<T, ?> tr, Function<Throwable, ? extends T> handler) {
        return Objects.requireNonNull(tr).addHandler(handler);
    }

    protected static RuntimeException runtimeException(Throwable t) {
        return t == null ? null : t instanceof RuntimeException e ? e : new RuntimeException(t);
    }
}