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package com.wizarius.orm.utils;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.MapperFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.extern.slf4j.Slf4j;

import java.io.IOException;

/**
 * Created by Vladyslav Shyshkin on 28.09.17.
 */
@Slf4j
public class WizariusJsonUtils {
    private static final ObjectMapper mapper = new ObjectMapper();

    static {
        mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
        mapper.configure(MapperFeature.ACCEPT_CASE_INSENSITIVE_PROPERTIES, true);
    }

    /**
     * Object to json
     *
     * @param object object
     * @return json object
     */
    public static String toJson(Object object) {
        try {
            return mapper.writeValueAsString(object);
        } catch (JsonProcessingException e) {
            log.error("Unable to convert object to json by jackson library", e);
            return null;
        }
    }

    /**
     * To pretty json
     *
     * @param object object to convert
     * @return pretty json
     */
    public static String toPrettyJson(Object object) {
        try {
            return mapper.writerWithDefaultPrettyPrinter().writeValueAsString(object);
        } catch (JsonProcessingException e) {
            log.error("Unable to convert object to json by jackson library", e);
            return null;
        }
    }

    /**
     * From json
     *
     * @param json  json string
     * @param clazz class name
     * @return converted object
     */
    public static  T fromJson(String json, Class clazz) {
        try {
            return mapper.readValue(json, clazz);
        } catch (IOException e) {
            log.error("Unable to read object from json by jackson library", e);
            return null;
        }
    }

    /**
     * Read json to object
     *
     * @param json  json string
     * @param clazz class to convert
     * @param    class instance
     * @return object
     * @throws JsonProcessingException on unable to process json
     */
    public static  T fromJsonWithError(String json, Class clazz) throws JsonProcessingException {
        return mapper.readValue(json, clazz);
    }

    /**
     * Write object as json
     *
     * @param object object to convert
     * @return json string
     * @throws JsonProcessingException on unable to process json
     */
    public static String toJsonWithError(Object object) throws JsonProcessingException {
        return mapper.writeValueAsString(object);
    }
}