package com.ym.config;

import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.format.DateTimeFormatter;
import java.util.Date;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.format.FormatterRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateDeserializer;
import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateTimeDeserializer;
import com.fasterxml.jackson.datatype.jsr310.deser.LocalTimeDeserializer;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateSerializer;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalTimeSerializer;
import com.ym.mec.common.config.EnumConverterFactory;
import com.ym.mec.common.enums.BaseEnum;

@Configuration
public class WebMvcConfig implements WebMvcConfigurer {

	/**
	 * 枚举类的转换器 addConverterFactory
	 */
	@Override
	public void addFormatters(FormatterRegistry registry) {
		registry.addConverterFactory(new EnumConverterFactory());
	}

	@SuppressWarnings("rawtypes")
	@Bean
	@Primary
	public ObjectMapper ObjectMapper() {
		ObjectMapper objectMapper = new ObjectMapper();
		// 对于空的对象转json的时候不抛出错误
		objectMapper.disable(SerializationFeature.FAIL_ON_EMPTY_BEANS);
		// 禁用遇到未知属性抛出异常
		objectMapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
		// 序列化BigDecimal时不使用科学计数法输出
		objectMapper.configure(JsonGenerator.Feature.WRITE_BIGDECIMAL_AS_PLAIN, true);
		// 日期和时间格式化
		JavaTimeModule javaTimeModule = new JavaTimeModule();
		javaTimeModule.addSerializer(LocalDateTime.class, new LocalDateTimeSerializer(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
		javaTimeModule.addSerializer(LocalDate.class, new LocalDateSerializer(DateTimeFormatter.ofPattern("yyyy-MM-dd")));
		javaTimeModule.addSerializer(LocalTime.class, new LocalTimeSerializer(DateTimeFormatter.ofPattern("HH:mm:ss")));
		javaTimeModule.addDeserializer(LocalDateTime.class, new LocalDateTimeDeserializer(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
		javaTimeModule.addDeserializer(LocalDate.class, new LocalDateDeserializer(DateTimeFormatter.ofPattern("yyyy-MM-dd")));
		javaTimeModule.addDeserializer(LocalTime.class, new LocalTimeDeserializer(DateTimeFormatter.ofPattern("HH:mm:ss")));

		// BaseEnum序列化
		javaTimeModule.addSerializer(BaseEnum.class, new JsonSerializer<BaseEnum>() {

			@Override
			public void serialize(BaseEnum enumObj, JsonGenerator jsonGenerator, SerializerProvider serializers) throws IOException {
				jsonGenerator.writeString(enumObj.getCode().toString());
			}

		});

		// Date序列化和反序列化
		javaTimeModule.addSerializer(Date.class, new JsonSerializer<Date>() {
			@Override
			public void serialize(Date date, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) throws IOException {
				SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
				String formattedDate = formatter.format(date);
				jsonGenerator.writeString(formattedDate);
			}
		});

		javaTimeModule.addDeserializer(Date.class, new JsonDeserializer<Date>() {
			@Override
			public Date deserialize(JsonParser jsonParser, DeserializationContext deserializationContext) throws IOException, JsonProcessingException {
				SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
				String date = jsonParser.getText();
				try {
					return format.parse(date);
				} catch (ParseException e) {
					throw new RuntimeException(e);
				}
			}
		});

		objectMapper.registerModule(javaTimeModule);
		return objectMapper;
	}

}