package com.lunhan.xxx.common.jackson;

import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;
import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateTimeDeserializer;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;
import org.springframework.boot.autoconfigure.jackson.Jackson2ObjectMapperBuilderCustomizer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.math.BigDecimal;
import java.math.BigInteger;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.TimeZone;

@Configuration
public class JacksonConfig {
    /**
     * jackson 配置
     * @return
     */
    @Bean
    public Jackson2ObjectMapperBuilderCustomizer customizer() {
        return builder -> {
            //全局配置序列化返回 JSON 处理
            JavaTimeModule javaTimeModule = new JavaTimeModule();
            javaTimeModule.addSerializer(Long.class, BigNumberSerializer.INSTANCE);
            javaTimeModule.addSerializer(Long.TYPE, BigNumberSerializer.INSTANCE);
            javaTimeModule.addSerializer(BigInteger.class, BigNumberSerializer.INSTANCE);
            javaTimeModule.addSerializer(BigDecimal.class, ToStringSerializer.instance);
            DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH : mm: ss");
            javaTimeModule.addSerializer(LocalDateTime.class, new LocalDateTimeSerializer(formatter));
            javaTimeModule.addDeserializer(LocalDateTime.class, new LocalDateTimeDeserializer(formatter));
            builder.modules(javaTimeModule);
            builder.timeZone(TimeZone.getDefault());
            System.out.println("初始化 jackson 配置");
        };
    }
}