package cn.citycraft.GsonAgent;

import java.io.Reader;
import java.io.Writer;

import cn.citycraft.GsonAgent.api.Gson;
import cn.citycraft.GsonAgent.api.JsonArray;
import cn.citycraft.GsonAgent.api.JsonNull;
import cn.citycraft.GsonAgent.api.JsonObject;
import cn.citycraft.GsonAgent.api.JsonParser;
import cn.citycraft.GsonAgent.api.JsonPrimitive;
import cn.citycraft.GsonAgent.api.stream.JsonReader;
import cn.citycraft.GsonAgent.api.stream.JsonWriter;

/**
 * Minecraft Gson代理类(用于兼容1.7-1.8Gson类库)
 * 复制修改于尘曲的Gson
 *
 * @since 2016年1月5日 下午12:51:30
 * @author 喵♂呜,尘曲
 */
public class GsonAgent {
    public static boolean newVersion = false;

    static {
        try {
            Thread.currentThread().getContextClassLoader().loadClass("com.google.gson.Gson");
            newVersion = true;
        } catch (final Exception | Error e) {
        }
    }

    /**
     * 初始化GsonAgent
     *
     * @return 根据新老版本获得不同的实例
     */
    public static Gson newGson() {
        if (newVersion) {
            return new cn.citycraft.GsonAgent.normal.GsonHandle();
        }
        return new cn.citycraft.GsonAgent.nms.GsonHandle();
    }

    public static JsonArray newJsonArray() {
        if (newVersion) {
            return new cn.citycraft.GsonAgent.normal.JsonArrayHandle();
        }
        return new cn.citycraft.GsonAgent.nms.JsonArrayHandle();
    }

    public static JsonNull newJsonNull() {
        if (newVersion) {
            return new cn.citycraft.GsonAgent.normal.JsonNullHandle();
        }
        return new cn.citycraft.GsonAgent.nms.JsonNullHandle();
    }

    public static JsonObject newJsonObject() {
        if (newVersion) {
            return new cn.citycraft.GsonAgent.normal.JsonObjectHandle();
        }
        return new cn.citycraft.GsonAgent.nms.JsonObjectHandle();
    }

    public static JsonParser newJsonParser() {
        if (newVersion) {
            return new cn.citycraft.GsonAgent.normal.JsonParserHandle();
        }
        return new cn.citycraft.GsonAgent.normal.JsonParserHandle();
    }

    public static JsonPrimitive newJsonPrimitive(final Boolean value) {
        if (newVersion) {
            return new cn.citycraft.GsonAgent.normal.JsonPrimitiveHandle(value);
        }
        return new cn.citycraft.GsonAgent.nms.JsonPrimitiveHandle(value);
    }

    public static JsonPrimitive newJsonPrimitive(final Character value) {
        if (newVersion) {
            return new cn.citycraft.GsonAgent.normal.JsonPrimitiveHandle(value);
        }
        return new cn.citycraft.GsonAgent.nms.JsonPrimitiveHandle(value);
    }

    public static JsonPrimitive newJsonPrimitive(final Number value) {
        if (newVersion) {
            return new cn.citycraft.GsonAgent.normal.JsonPrimitiveHandle(value);
        }
        return new cn.citycraft.GsonAgent.nms.JsonPrimitiveHandle(value);
    }

    public static JsonPrimitive newJsonPrimitive(final String value) {
        if (newVersion) {
            return new cn.citycraft.GsonAgent.normal.JsonPrimitiveHandle(value);
        }
        return new cn.citycraft.GsonAgent.nms.JsonPrimitiveHandle(value);
    }

    public static JsonReader newJsonReader(final Reader in) {
        if (newVersion) {
            return new cn.citycraft.GsonAgent.normal.stream.JsonReaderHandle(in);
        }
        return new cn.citycraft.GsonAgent.nms.stream.JsonReaderHandle(in);
    }

    public static JsonWriter newJsonWriter(final Writer out) {
        if (newVersion) {
            return new cn.citycraft.GsonAgent.normal.stream.JsonWriterHandle(out);
        }
        return new cn.citycraft.GsonAgent.nms.stream.JsonWriterHandle(out);
    }
    // FIXME ###会造成java.lang.StackOverflowError###
    // public static <T> TypeAdapter newTypeAdapter(final TypeAdapter<T> typeAdapter) {
    // if (newVersion) {
    // return new cn.citycraft.GsonAgent.normal.bind.TypeAdapterHandle((com.google.gson.TypeAdapter) typeAdapter);
    // }
    // return new cn.citycraft.GsonAgent.nms.bind.TypeAdapterHandle((net.minecraft.util.com.google.gson.TypeAdapter) typeAdapter);
    // }
}