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package io.github.kits.json.support;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.databind.type.CollectionType;
import com.fasterxml.jackson.datatype.jdk8.Jdk8Module;
import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
import com.fasterxml.jackson.module.paramnames.ParameterNamesModule;
import io.github.kits.interfaces.JsonSupport;
import io.github.kits.log.Logger;

import java.io.IOException;
import java.util.List;
import java.util.Map;

/**
 * @project: kits
 * @created: with IDEA
 * @author: nzlong
 * @Date: 2019 01 24 10:00 | January. Thursday
 */
public class JacksonSupport implements JsonSupport {

    public static final ObjectMapper OBJECT_MAPPER = new ObjectMapper();

    static {
        OBJECT_MAPPER.configure(JsonParser.Feature.ALLOW_UNQUOTED_CONTROL_CHARS, true);
        OBJECT_MAPPER
                .registerModule(new ParameterNamesModule())
                .registerModule(new Jdk8Module())
                .registerModule(new JavaTimeModule());

        OBJECT_MAPPER.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
        OBJECT_MAPPER.configure(JsonGenerator.Feature.ESCAPE_NON_ASCII, false);
    }

    @Override
    public String toJson(Object object) {
        try {
            if (object instanceof String) {
                return object.toString();
            }
            return OBJECT_MAPPER.writeValueAsString(object);
        } catch (JsonProcessingException e) {
            Logger.error("Jackson writeValueAsString fail", e);
        }
        return null;
    }

    @Override
    public T toObject(String jsonStr, Class clazz) {
        T object = null;
        try {
            object = OBJECT_MAPPER.readValue(jsonStr, clazz);
        } catch (IOException e) {
            Logger.error("Jackson readValue fail", e);
        }
        return object;
    }

    @Override
    public List toList(String jsonStr, Class clazz) {
        List object = null;
        try {
            CollectionType javaType = OBJECT_MAPPER.getTypeFactory()
                    .constructCollectionType(List.class, clazz);
            object = OBJECT_MAPPER.readValue(jsonStr, javaType);
        } catch (IOException e) {
            Logger.error("Jackson readValue fail", e);
        }
        return object;
    }

    @Override
    public String prettyJson(Object object) {
        try {
            if (object instanceof String || object instanceof Character) {
                try {
                    object = toObject(object.toString(), (Class) Map.class);
                } catch (Throwable throwable) {

                }
            }
            return OBJECT_MAPPER.writerWithDefaultPrettyPrinter().writeValueAsString(object);
        } catch (Exception e) {
            Logger.error("Jackson prettyJson fail", e);
        }
        return null;
    }

}