package com.yj.earth.common.config;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.ser.impl.SimpleFilterProvider;
import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;
import com.yj.earth.annotation.ExcludeField;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;

/**
 * Jackson配置类
 */
@Configuration
public class JacksonConfig {

    // 定义日期时间格式
    private static final String DATE_TIME_FORMAT = "yyyy-MM-dd HH:mm:ss";

    @Bean
    public ObjectMapper objectMapper() {
        ObjectMapper objectMapper = new ObjectMapper();
        // 注册 JavaTimeModule 以支持 LocalDateTime 等日期类型
        JavaTimeModule javaTimeModule = new JavaTimeModule();
        // 配置 LocalDateTime 的序列化格式
        LocalDateTimeSerializer localDateTimeSerializer = new LocalDateTimeSerializer(
                DateTimeFormatter.ofPattern(DATE_TIME_FORMAT)
        );
        javaTimeModule.addSerializer(LocalDateTime.class, localDateTimeSerializer);
        objectMapper.registerModule(javaTimeModule);
        // 配置自定义字段过滤器
        SimpleFilterProvider filterProvider = new SimpleFilterProvider();
        filterProvider.addFilter("excludeFieldFilter", new ExcludeField.Filter());
        // 设置默认过滤器、防止未添加@JsonFilter的类报错
        filterProvider.setDefaultFilter(com.fasterxml.jackson.databind.ser.impl.SimpleBeanPropertyFilter.serializeAll());
        objectMapper.setFilterProvider(filterProvider);
        return objectMapper;
    }
}