package com.zy.common.config;

import com.zy.common.constant.MesConstant;
import com.zy.common.utils.Http;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.Ordered;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
import org.springframework.web.filter.CorsFilter;
import org.springframework.web.servlet.AsyncHandlerInterceptor;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Created by vincent on 2019-06-13
 */
@Configuration
public class WebConfig implements WebMvcConfigurer {

    @Autowired
    private AdminInterceptor adminInterceptor;

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(adminInterceptor)
                .addPathPatterns("/**")
        ;
    }

    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**")
                .allowedOrigins("*") // 使用 allowedOriginPatterns 而不是 allowedOrigins
                .allowedMethods("GET", "POST", "PUT", "DELETE", "OPTIONS")
                .allowedHeaders("*")
                .allowCredentials(true)
                .maxAge(3600);
    }

    /**
     * 方式二：使用 Filter（更全面，优先级更高）
     */
    @Bean
    public FilterRegistrationBean<CorsFilter> corsFilter() {
        CorsConfiguration config = new CorsConfiguration();

        // 允许所有域名
        config.addAllowedOrigin("*");

        // 允许任何头
        config.addAllowedHeader("*");

        // 允许任何方法（GET, POST, PUT, DELETE, OPTIONS等）
        config.addAllowedMethod("*");

        // 允许凭证（如果需要cookie等凭证，设置为true，但需要指定具体域名）
        config.setAllowCredentials(false);

        // 预检请求的有效期，单位为秒
        config.setMaxAge(3600L);

        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
        source.registerCorsConfiguration("/**", config);

        FilterRegistrationBean<CorsFilter> bean = new FilterRegistrationBean<>(new CorsFilter(source));

        // 设置优先级最高
        bean.setOrder(Ordered.HIGHEST_PRECEDENCE);

        return bean;
    }


}