package com.atguigu.config;

import com.atguigu.constant.LocalDateTimeConstant;
import com.atguigu.interceptor.LoginAuthInterceptor;
import com.atguigu.json.JacksonObjectMapper;
import com.atguigu.properties.InterceptorsProperties;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;

import java.text.SimpleDateFormat;
import java.util.List;

@Component
@Slf4j
public class WebMvcConfiguration extends WebMvcConfigurationSupport {
    @Autowired
    private LoginAuthInterceptor loginAuthInterceptor;
    @Autowired
    private InterceptorsProperties interceptorsProperties;

    /**
     * * 解决跨域
     *
     * @param registry 跨域注册表
     */
    protected void addCorsMappings(CorsRegistry registry) {
        log.info("开始跨域注册表...");
        registry.addMapping("/**")// 添加路径规则
                .allowCredentials(true)// 是否允许在跨域的情况下传递Cookie
                .allowedOriginPatterns("*")// 允许请求来源的域规则
                .allowedMethods("*").allowedHeaders("*");// 允许所有的请求头
    }

    /**
     * 注册自定义拦截器
     *
     * @param registry InterceptorRegistry
     */
    protected void addInterceptors(InterceptorRegistry registry) {
        log.info("开始注册自定义拦截器...");
        // 需要拦截的
        registry.addInterceptor(loginAuthInterceptor).addPathPatterns("/**")
                .excludePathPatterns(interceptorsProperties.getNoAuthUrls());
    }

    /**
     * 扩展Spring MVC框架的消息转化器
     *
     * @param converters 转换器
     */
    public void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
        log.info("扩展消息转换器...");
        // 创建一个消息转换器对象
        MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter();
        // 需要为消息转换器设置一个对象转换器，对象转换器可以将Java对象序列化为json数据
        converter.setObjectMapper(new JacksonObjectMapper());
        // 添加条件判断，只应用于特定的请求路径
        converter.getObjectMapper().setDateFormat(new SimpleDateFormat(LocalDateTimeConstant.DEFAULT_DATE_TIME_SECOND_FORMAT));

        // 将自己的消息转化器加入容器中
        converters.add(converter);
    }
}