package cn.rensijin.cchs.config.web;

import cn.rensijin.cchs.config.date.JacksonObjectMapper;
import cn.rensijin.cchs.interceptor.LoginInterceptor;
import cn.rensijin.cchs.interceptor.RateLimitInterceptor;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;

import javax.annotation.Resource;
import java.util.List;

/**
 * web配置
 */
@Configuration
public class WebConfig extends WebMvcConfigurationSupport {

    @Resource
    private LoginInterceptor loginInterceptor;

    @Resource
    private RateLimitInterceptor rateLimitInterceptor;

    //扩展SpringMVC框架的消息转化器，例如实现返回日期时间的格式化
    @Override
    protected void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
        MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter();
        //将java对象序列化为json数据,为消息转换器设置序列转换器
        converter.setObjectMapper(new JacksonObjectMapper());
        //将自己的消息转换器加入容器中
        converters.add(0, converter);
    }

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(rateLimitInterceptor);
        registry.addInterceptor(loginInterceptor)
                .addPathPatterns("/**")
                .excludePathPatterns("/", "/static/**", "/file/download/**")
                .excludePathPatterns("/login/**", "/user/info", "/test/**","/user/register");
    }

    /**
     * springboot 2.0配置WebMvcConfigurationSupport之后，会导致默认配置被覆盖，要访问静态资源需要重写addResourceHandlers方法
     */
    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/**")
                .addResourceLocations("classpath:/resources/")
                .addResourceLocations("classpath:/static/");
        super.addResourceHandlers(registry);
    }

}