/*
 *      Copyright (c) 2018-2028, DreamLu All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions are met:
 *
 *  Redistributions of source code must retain the above copyright notice,
 *  this list of conditions and the following disclaimer.
 *  Redistributions in binary form must reproduce the above copyright
 *  notice, this list of conditions and the following disclaimer in the
 *  documentation and/or other materials provided with the distribution.
 *  Neither the name of the dreamlu.net developer nor the names of its
 *  contributors may be used to endorse or promote products derived from
 *  this software without specific prior written permission.
 *  Author: DreamLu 卢春梦 (596392912@qq.com)
 */

package com.vci.web.util;

import com.vci.web.util.function.*;
import java.util.Comparator;
import java.util.Objects;
import java.util.concurrent.Callable;
import java.util.function.Consumer;
import java.util.function.Function;
import java.util.function.Supplier;

/**
 * Lambda 受检异常处理
 *
 * <p>
 * https://segmentfault.com/a/1190000007832130
 * https://github.com/jOOQ/jOOL
 * </p>
 *
 * @author L.cm
 */
public class Unchecked {

	public static <T, R> Function<T, R> function(CheckedFunction<T, R> mapper) {
		Objects.requireNonNull(mapper);
		return t -> {
			try {
				return mapper.apply(t);
			} catch (Throwable e) {
				throw Exceptions.unchecked(e);
			}
		};
	}

	public static <T> Consumer<T> consumer(CheckedConsumer<T> mapper) {
		Objects.requireNonNull(mapper);
		return t -> {
			try {
				mapper.accept(t);
			} catch (Throwable e) {
				throw Exceptions.unchecked(e);
			}
		};
	}

	public static <T> Supplier<T> supplier(CheckedSupplier<T> mapper) {
		Objects.requireNonNull(mapper);
		return () -> {
			try {
				return mapper.get();
			} catch (Throwable e) {
				throw Exceptions.unchecked(e);
			}
		};
	}

	public static Runnable runnable(CheckedRunnable runnable) {
		Objects.requireNonNull(runnable);
		return () -> {
			try {
				runnable.run();
			} catch (Throwable e) {
				throw Exceptions.unchecked(e);
			}
		};
	}

	public static <T> Callable<T> callable(CheckedCallable<T> callable) {
		Objects.requireNonNull(callable);
		return () -> {
			try {
				return callable.call();
			} catch (Throwable e) {
				throw Exceptions.unchecked(e);
			}
		};
	}

	public static <T> Comparator<T> comparator(CheckedComparator<T> comparator) {
		Objects.requireNonNull(comparator);
		return (T o1, T o2) -> {
			try {
				return comparator.compare(o1, o2);
			} catch (Throwable e) {
				throw Exceptions.unchecked(e);
			}
		};
	}

}