/**
 * Copyright (c) 2018-2028, lengleng (wangiegie@gmail.com).
 * <p>
 * Licensed under the GNU LESSER GENERAL PUBLIC LICENSE 3.0;
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * <p>
 * http://www.gnu.org/licenses/lgpl.html
 * <p>
 * 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.springblade.core.swagger;

import com.google.common.base.Function;
import com.google.common.base.Optional;
import springfox.documentation.RequestHandler;

import java.util.List;
import java.util.function.Predicate;

/**
 * Swagger工具类
 *
 * @author Chill
 */
public class SwaggerUtil {

	/**
	 * 获取包集合
	 *
	 * @param basePackages 多个包名集合
	 */
	public static Predicate<RequestHandler> basePackages(final List<String> basePackages) {
		return input -> declaringClass(input).transform(handlerPackage(basePackages)).or(true);
	}

	private static Function<Class<?>, Boolean> handlerPackage(final List<String> basePackages) {
		return input -> {
			// 循环判断匹配
			for (String strPackage : basePackages) {
				boolean isMatch = input.getPackage().getName().startsWith(strPackage);
				if (isMatch) {
					return true;
				}
			}
			return false;
		};
	}

	private static Optional<? extends Class<?>> declaringClass(RequestHandler input) {
		return Optional.fromNullable(input.declaringClass());
	}

}