package com.ruoyi.framework.config.properties;

import com.ruoyi.framework.aspectj.lang.annotation.Anonymous;
import org.apache.commons.lang3.RegExUtils;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.annotation.AnnotationUtils;
import org.springframework.web.method.HandlerMethod;
import org.springframework.web.servlet.mvc.method.RequestMappingInfo;
import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping;

import java.util.*;
import java.util.regex.Pattern;

/**
 * 设置Anonymous注解允许匿名访问的url
 * 
 * @author ruoyi
 */
@Configuration
public class PermitAllUrlProperties implements InitializingBean, ApplicationContextAware
{
    private static final Pattern PATTERN = Pattern.compile("\\{(.*?)\\}");

    private ApplicationContext applicationContext;

    private List<String> urls = new ArrayList<>();

    public String ASTERISK = "*";

    @Override
    public void afterPropertiesSet()
    {
        RequestMappingHandlerMapping mapping = applicationContext.getBean(RequestMappingHandlerMapping.class);
        Map<RequestMappingInfo, HandlerMethod> map = mapping.getHandlerMethods();

//        map.keySet().forEach(info -> {
//            HandlerMethod handlerMethod = map.get(info);
//
//            // 获取方法上边的注解 替代path variable 为 *
//            Anonymous method = AnnotationUtils.findAnnotation(handlerMethod.getMethod(), Anonymous.class);
//            Optional.ofNullable(method).ifPresent(anonymous -> Objects.requireNonNull(info.getPatternsCondition().getPatterns())
//                    .forEach(url -> urls.add(RegExUtils.replaceAll(url, PATTERN, ASTERISK))));
//
//            // 获取类上边的注解, 替代path variable 为 *
//            Anonymous controller = AnnotationUtils.findAnnotation(handlerMethod.getBeanType(), Anonymous.class);
//            Optional.ofNullable(controller).ifPresent(anonymous -> Objects.requireNonNull(info.getPatternsCondition().getPatterns())
//                    .forEach(url -> urls.add(RegExUtils.replaceAll(url, PATTERN, ASTERISK))));
//        });

        map.keySet().forEach(info -> {
            HandlerMethod handlerMethod = map.get(info);
            // 获取方法上的匿名访问注解
            Anonymous anonymous = AnnotationUtils.findAnnotation(handlerMethod.getMethod(), Anonymous.class);
            if (Objects.nonNull(anonymous)) {
                // 重点：Spring Boot 3 兼容性写法
                Set<String> patterns = new HashSet<>();
                if (info.getPatternsCondition() != null) {
                    patterns.addAll(info.getPatternsCondition().getPatterns());
                }
                if (info.getPathPatternsCondition() != null) {
                    patterns.addAll(info.getPathPatternsCondition().getPatternValues());
                }

                patterns.forEach(url -> urls.add(RegExUtils.replaceAll(url, PATTERN, "*")));
            }
        });
    }

    @Override
    public void setApplicationContext(ApplicationContext context) throws BeansException
    {
        this.applicationContext = context;
    }

    public List<String> getUrls()
    {
        return urls;
    }

    public void setUrls(List<String> urls)
    {
        this.urls = urls;
    }
}