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package org.kaizen4j.common.util;

import com.fasterxml.jackson.core.JsonFactory;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.base.Throwables;

import java.io.IOException;
import java.io.StringWriter;

public final class JsonUtils {

    private static final ObjectMapper objectMapper;

    static {
        objectMapper = new ObjectMapper();
        // objectMapper.setVisibility(PropertyAccessor.FIELD, Visibility.ANY);
        objectMapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
    }

    public static ObjectMapper getObjectMapper() {
        return objectMapper;
    }

    public static String getJson(Object obj) {
        StringWriter stringWriter = new StringWriter();
        try {
            getObjectMapper().writeValue(stringWriter, obj);
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
        return stringWriter.toString();
    }

    public static  T readValue(String content, Class clazz) {
        try {
            return getJsonParser(content).readValueAs(clazz);
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    public static  T readValue(String content, TypeReference typeReference) {
        try {
            return getJsonParser(content).readValueAs(typeReference);
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    private static JsonParser getJsonParser(String content) throws IOException {
        JsonFactory jsonFactory = getObjectMapper().getFactory();
        JsonParser jsonParser = jsonFactory.createParser(content);
        jsonParser.enable(JsonParser.Feature.ALLOW_UNQUOTED_FIELD_NAMES);
        return jsonParser;
    }

    public static JsonNode readValue(String content) {
        return readValue(content, JsonNode.class);
    }

}