package com.pili.rnpili.support;

import com.facebook.react.bridge.ReadableMap;
import com.facebook.react.bridge.ReadableMapKeySetIterator;
import com.facebook.react.bridge.ReadableType;

import org.json.JSONException;
import org.json.JSONObject;

/**
 * Created by buhe on 16/5/5.
 */
public class Jsons {
    public static JSONObject readableMapToJson(ReadableMap readableMap) {
        JSONObject jsonObject = new JSONObject();

        if (readableMap == null) {
            return null;
        }

        ReadableMapKeySetIterator iterator = readableMap.keySetIterator();
        if (!iterator.hasNextKey()) {
            return null;
        }

        while (iterator.hasNextKey()) {
            String key = iterator.nextKey();
            ReadableType readableType = readableMap.getType(key);

            try {
                switch (readableType) {
                    case Null:
                        jsonObject.put(key, null);
                        break;
                    case Boolean:
                        jsonObject.put(key, readableMap.getBoolean(key));
                        break;
                    case Number:
                        // Can be int or double.
                        jsonObject.put(key, readableMap.getInt(key));
                        break;
                    case String:
                        jsonObject.put(key, readableMap.getString(key));
                        break;
                    case Map:
                        jsonObject.put(key, readableMapToJson(readableMap.getMap(key)));
                        break;
                    case Array:
                        jsonObject.put(key, readableMap.getArray(key));
                    default:
                        // Do nothing and fail silently
                }
            } catch (JSONException ex) {
                // Do nothing and fail silently
            }
        }

        return jsonObject;
    }
}