package com.bananain.cplan.spp.utils;

import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateSerializer;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;
import lombok.SneakyThrows;
import lombok.experimental.UtilityClass;
import org.apache.commons.lang3.StringUtils;

import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Collections;
import java.util.List;

@UtilityClass
public class JacksonUtil {

    public static final ObjectMapper objectMapper = new ObjectMapper();

    static {
        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")));
        objectMapper.registerModule(javaTimeModule);
        objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
        objectMapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
    }

    @SneakyThrows
    public static <T> T parse(String json, Class<T> clazz) {

        if (StringUtils.isBlank(json)) {
            return null;
        }
        return objectMapper.readValue(json, clazz);

    }

    @SneakyThrows
    public static <T> List<T> parseList(String json, Class<T> c) {
        if (StringUtils.isBlank(json)) {
            return Collections.emptyList();
        }
        return objectMapper.readerForListOf(c).readValue(json);
    }

    @SneakyThrows
    public static String toJson(Object obj) {
        return objectMapper.writeValueAsString(obj);
    }

}