package com.moonmiles.bridge.apm.utils;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.support.annotation.Nullable;
import android.util.Log;

import com.facebook.react.bridge.Promise;
import com.facebook.react.bridge.ReactContext;
import com.facebook.react.bridge.ReadableArray;
import com.facebook.react.bridge.ReadableMap;
import com.facebook.react.bridge.ReadableMapKeySetIterator;
import com.facebook.react.bridge.WritableArray;
import com.facebook.react.bridge.WritableMap;
import com.facebook.react.bridge.WritableNativeArray;
import com.facebook.react.bridge.WritableNativeMap;
import com.facebook.react.modules.core.RCTNativeAppEventEmitter;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.moonmiles.apmservices.model.abs.APMModel;
import com.moonmiles.apmservices.net.APMException;
import com.moonmiles.bridge.apm.APMConstants;

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

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;

public class APMBridgeUtils
{
    public static Intent getIntentFromActivity(Activity activity)
    {
        Intent intent = null;
        if(activity != null)
            intent = activity.getIntent();
        return intent;
    }

    public static Context getContextFromModule(Context reactApplicationContext, Activity currentActivity)
    {
        Context context = reactApplicationContext;

        if(context == null)
            Log.w(APMConstants.TAG, "No context available from getReactApplicationContext()");

        if(context == null && currentActivity != null)
        {
            context = currentActivity.getApplicationContext();
        }

        if(context == null)
            Log.w(APMConstants.TAG, "No context available from getCurrentActivity().getApplicationContext()");

        return context;
    }

    public static void sendEvent(ReactContext reactContext, String eventName, @Nullable WritableMap params)
    {
        if(reactContext != null)
            reactContext.getJSModule(RCTNativeAppEventEmitter.class).emit(eventName, params);
        else
            Log.w(APMConstants.TAG, "No ReactContext for send event...");
    }

    public static Gson createDefaultGson()
    {
        GsonBuilder builder = new GsonBuilder();
        return builder.create();
    }

    //Resolve
    //********************//

    public static void resolvePromise(Object object, Promise promise)
    {
        try
        {
            if(object != null)
            {
                if(object instanceof ArrayList)
                    resolvePromiseWithArray((ArrayList) object, promise);
                else if(object instanceof HashMap || object instanceof APMModel)
                    resolvePromiseWithObject(object, promise);
                else
                    promise.resolve(object);
            }
            else
                promise.resolve(null);
        }
        catch(Exception e)
        {
            e.printStackTrace();
            rejectPromiseWithException(e, promise);
        }
    }

    private static void resolvePromiseWithObject(Object object, Promise promise) throws JSONException
    {
        WritableMap params = APMBridgeUtils.convertObjectToMap(object);
        promise.resolve(params);
    }

    private static void resolvePromiseWithArray(ArrayList object, Promise promise) throws JSONException
    {
        WritableArray array = APMBridgeUtils.convertObjectToArray(object);
        promise.resolve(array);
    }

    //Reject
    //********************//
    public static void rejectPromise(Object object, Promise promise)
    {
        try
        {
            if(object != null)
            {
                if(object instanceof APMException)
                    rejectPromiseWithAPMException((APMException) object, promise);
                else if(object instanceof Exception)
                    rejectPromiseWithException((Exception) object, promise);
            }
        }
        catch(Exception e)
        {
            e.printStackTrace();
            rejectPromiseWithException(e, promise);
        }
    }

    private static void rejectPromiseWithException(Exception e, Promise promise)
    {
        APMException exception = new APMException(APMConstants.APM_BRIDGE_ERROR_UNKNOWN, e.getLocalizedMessage());
        rejectPromiseWithAPMException(exception, promise);

    }

    private static void rejectPromiseWithAPMException(APMException e, Promise promise)
    {
        promise.reject(e.errorCode + "", e.errorMessage);
    }











    //Convert
    //********************//

    public static WritableMap convertObjectToMap(Object object) throws JSONException
    {
        WritableMap params = null;
        String stringJson = APMBridgeUtils.createDefaultGson().toJson(object);
        JSONObject userjson = new JSONObject(stringJson);
        params = APMBridgeUtils.convertJsonToMap(userjson);
        return params;
    }

    public static WritableArray convertObjectToArray(Object object) throws JSONException
    {
        WritableArray array = null;
        String stringJson = APMBridgeUtils.createDefaultGson().toJson(object);
        JSONArray userjson = new JSONArray(stringJson);
        array = APMBridgeUtils.convertJsonToArray(userjson);
        return array;
    }

    public static WritableMap convertJsonToMap(JSONObject jsonObject) throws JSONException
    {
        WritableMap map = new WritableNativeMap();

        Iterator<String> iterator = jsonObject.keys();
        while(iterator.hasNext())
        {
            String key = iterator.next();
            Object value = jsonObject.get(key);
            if(value instanceof JSONObject)
            {
                map.putMap(key, convertJsonToMap((JSONObject) value));
            }
            else if(value instanceof JSONArray)
            {
                map.putArray(key, convertJsonToArray((JSONArray) value));
            }
            else if(value instanceof Boolean)
            {
                map.putBoolean(key, (Boolean) value);
            }
            else if(value instanceof Integer)
            {
                map.putInt(key, (Integer) value);
            }
            else if(value instanceof Double)
            {
                map.putDouble(key, (Double) value);
            }
            else if(value instanceof String)
            {
                map.putString(key, (String) value);
            }
            else
            {
                map.putString(key, value.toString());
            }
        }
        return map;
    }

    public static WritableArray convertJsonToArray(JSONArray jsonArray) throws JSONException
    {
        WritableArray array = new WritableNativeArray();

        for(int i = 0; i < jsonArray.length(); i++)
        {
            Object value = jsonArray.get(i);
            if(value instanceof JSONObject)
            {
                array.pushMap(convertJsonToMap((JSONObject) value));
            }
            else if(value instanceof JSONArray)
            {
                array.pushArray(convertJsonToArray((JSONArray) value));
            }
            else if(value instanceof Boolean)
            {
                array.pushBoolean((Boolean) value);
            }
            else if(value instanceof Integer)
            {
                array.pushInt((Integer) value);
            }
            else if(value instanceof Double)
            {
                array.pushDouble((Double) value);
            }
            else if(value instanceof String)
            {
                array.pushString((String) value);
            }
            else
            {
                array.pushString(value.toString());
            }
        }
        return array;
    }

    public static JSONObject convertMapToJson(ReadableMap readableMap) throws JSONException
    {
        JSONObject object = new JSONObject();
        ReadableMapKeySetIterator iterator = readableMap.keySetIterator();
        while(iterator.hasNextKey())
        {
            String key = iterator.nextKey();
            switch(readableMap.getType(key))
            {
                case Null:
                    object.put(key, JSONObject.NULL);
                    break;
                case Boolean:
                    object.put(key, readableMap.getBoolean(key));
                    break;
                case Number:
                    object.put(key, readableMap.getDouble(key));
                    break;
                case String:
                    object.put(key, readableMap.getString(key));
                    break;
                case Map:
                    object.put(key, convertMapToJson(readableMap.getMap(key)));
                    break;
                case Array:
                    object.put(key, convertArrayToJson(readableMap.getArray(key)));
                    break;
            }
        }
        return object;
    }

    public static JSONArray convertArrayToJson(ReadableArray readableArray) throws JSONException
    {
        JSONArray array = new JSONArray();
        for(int i = 0; i < readableArray.size(); i++)
        {
            switch(readableArray.getType(i))
            {
                case Null:
                    break;
                case Boolean:
                    array.put(readableArray.getBoolean(i));
                    break;
                case Number:
                    array.put(readableArray.getDouble(i));
                    break;
                case String:
                    array.put(readableArray.getString(i));
                    break;
                case Map:
                    array.put(convertMapToJson(readableArray.getMap(i)));
                    break;
                case Array:
                    array.put(convertArrayToJson(readableArray.getArray(i)));
                    break;
            }
        }
        return array;
    }
}