package com.oying.config.webConfig;

import com.alibaba.fastjson2.JSONWriter;
import com.alibaba.fastjson2.support.config.FastJsonConfig;
import com.alibaba.fastjson2.support.spring.http.converter.FastJsonHttpMessageConverter;
import com.oying.config.properties.FileProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.MediaType;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.StringHttpMessageConverter;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
import org.springframework.web.filter.CorsFilter;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.List;

/**
 * WebMvcConfigurer
 *
 * @author Z
 * @date 2018-11-30
 */
@Configuration
@EnableWebMvc
public class ConfigurerAdapter implements WebMvcConfigurer {

    /** 文件配置 */
    private final FileProperties properties;

    public ConfigurerAdapter(FileProperties properties) {
        this.properties = properties;
    }

    @Bean
    public CorsFilter corsFilter() {
        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
        CorsConfiguration config = new CorsConfiguration();
        config.setAllowCredentials(true);
        config.addAllowedOriginPattern("*");
        config.addAllowedHeader("*");
        config.addAllowedMethod("*");
        source.registerCorsConfiguration("/**", config);
        return new CorsFilter(source);
    }

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        FileProperties.ElPath path = properties.getPath();
        String avatarUtl = "file:" + path.getAvatar().replace("\\","/");
        String pathUtl = "file:" + path.getPath().replace("\\","/");
        registry.addResourceHandler("/avatar/**").addResourceLocations(avatarUtl).setCachePeriod(0);
        registry.addResourceHandler("/file/**").addResourceLocations(pathUtl).setCachePeriod(0);
        registry.addResourceHandler("/**").addResourceLocations("classpath:/META-INF/resources/").setCachePeriod(0);
    }

    @Override
    public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
        // 添加默认的 StringHttpMessageConverter
        converters.add(new StringHttpMessageConverter(StandardCharsets.UTF_8));
        // 配置 FastJsonHttpMessageConverter
        FastJsonHttpMessageConverter fastJsonConverter = new FastJsonHttpMessageConverter();
        List<MediaType> supportMediaTypeList = new ArrayList<>();
        supportMediaTypeList.add(MediaType.APPLICATION_JSON);
        FastJsonConfig config = new FastJsonConfig();
        config.setDateFormat("yyyy-MM-dd HH:mm:ss");
        // 开启引用检测，枚举支持
        config.setWriterFeatures(
                JSONWriter.Feature.WriteLongAsString,
                JSONWriter.Feature.WriteEnumUsingToString,
                JSONWriter.Feature.ReferenceDetection
        );
        fastJsonConverter.setFastJsonConfig(config);
        fastJsonConverter.setSupportedMediaTypes(supportMediaTypeList);
        fastJsonConverter.setDefaultCharset(StandardCharsets.UTF_8);
        // 将 FastJsonHttpMessageConverter 添加到列表末尾
        converters.add(fastJsonConverter);
    }
}