/*
 * Copyright (c) 2013-2024 Hutool Team and hutool.cn
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.dromara.hutool.core.func;

import org.dromara.hutool.core.exception.ExceptionUtil;

import java.io.Serializable;
import java.util.function.Supplier;
import java.util.stream.Stream;

/**
 * 可序列化的Supplier
 *
 * @param <R> 返回值类型
 * @author VampireAchao
 * @see Supplier
 */
@FunctionalInterface
public interface SerSupplier<R> extends Supplier<R>, Serializable {

	/**
	 * Gets a result.
	 *
	 * @return a result
	 * @throws Exception wrapped checked exception
	 */
	R getting() throws Throwable;

	/**
	 * Gets a result.
	 *
	 * @return a result
	 */
	@Override
	default R get() {
		try {
			return getting();
		} catch (final Throwable e) {
			throw ExceptionUtil.wrapRuntime(e);
		}
	}

	/**
	 * last
	 *
	 * @param serSups lambda
	 * @param <T>     type
	 * @return lambda
	 */
	@SafeVarargs
	static <T> SerSupplier<T> last(final SerSupplier<T>... serSups) {
		return Stream.of(serSups).reduce((l, r) -> r).orElseGet(() -> () -> null);
	}

}
