package com.github.yurinevenchenov1970.theweather.widget;

import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProvider;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.net.Uri;
import android.preference.PreferenceManager;
import android.support.annotation.NonNull;
import android.util.Log;
import android.widget.RemoteViews;

import com.github.yurinevenchenov1970.theweather.R;
import com.github.yurinevenchenov1970.theweather.adapter.WeatherExtractor;
import com.github.yurinevenchenov1970.theweather.bean.BaseResponse;
import com.github.yurinevenchenov1970.theweather.bean.SimpleWeatherToShow;
import com.github.yurinevenchenov1970.theweather.net.ApiClientWeather;
import com.github.yurinevenchenov1970.theweather.net.WeatherService;

import java.util.List;

import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;

import static android.appwidget.AppWidgetManager.ACTION_APPWIDGET_UPDATE;
import static android.appwidget.AppWidgetManager.EXTRA_APPWIDGET_IDS;

/**
 * @author Yuri Nevenchenov on 11/14/2017.
 */

public class WeatherWidgetProvider extends AppWidgetProvider {

    private String mCity;
    private boolean isCitySaved;
    private WeatherService mWeatherService;
    private int mForecastLength = 1;
    private BaseResponse mBaseResponse;
    private List<String> mTextWeatherToShowList;
    private List<SimpleWeatherToShow> mSimpleWeatherToShowList;

    @Override
    public void onUpdate(final Context context, final AppWidgetManager appWidgetManager, final int[] appWidgetIds) {
        Intent intent = new Intent(context, WeatherWidgetProvider.class);
        intent.setAction(ACTION_APPWIDGET_UPDATE);
        intent.putExtra(EXTRA_APPWIDGET_IDS, appWidgetIds);
        final RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.weather_appwidget);
        context.startService(intent);

        final AppWidgetManager manager = AppWidgetManager.getInstance(context);
        final ComponentName componentName = new ComponentName(context, WeatherWidgetProvider.class);
        manager.updateAppWidget(componentName, views);

        mCity = getCityFromPrefs(context);
        if (isCitySaved) {
            mWeatherService = ApiClientWeather.getClient().create(WeatherService.class);
            Call<BaseResponse> responseCall = mWeatherService.getWeather(mCity);
            responseCall.enqueue(new Callback<BaseResponse>() {
                @Override
                public void onResponse(@NonNull Call<BaseResponse> call, @NonNull Response<BaseResponse> response) {
                    if (response.body() != null) {
                        mBaseResponse = response.body();
                        Log.d(WeatherWidgetProvider.class.getCanonicalName(), "onresponse");
                        mTextWeatherToShowList = WeatherExtractor.extractTextWeatherToShow(mBaseResponse, mForecastLength);
                        mSimpleWeatherToShowList = WeatherExtractor.extractSimpleWeatherToShow(mBaseResponse, mForecastLength);
                        fillWidgetsWithData(context, appWidgetManager, appWidgetIds);
                    }
                }

                @Override
                public void onFailure(@NonNull Call<BaseResponse> call, @NonNull Throwable t) {
                    System.out.println("failure " + t.getMessage());
                    Log.d(WeatherWidgetProvider.class.getCanonicalName(), "onfailure");
                }
            });

        } else {
            fillWidgetsWithChoseCityMessage(context, appWidgetManager, appWidgetIds);
        }
        super.onUpdate(context, appWidgetManager, appWidgetIds);
    }

    private String getCityFromPrefs(Context context) {
        SharedPreferences sharedPref = PreferenceManager.getDefaultSharedPreferences(context);
        String defaultValue = context.getString(R.string.saved_city_name);
        String city = sharedPref.getString(context.getString(R.string.saved_city_name), defaultValue);
        verifyCity(city, defaultValue);
        return city;
    }

    private void verifyCity(String city, String defaultValue) {
        if (city.equals(defaultValue)) {
            isCitySaved = false;
        } else {
            isCitySaved = true;
        }
    }

    private void fillWidgetsWithData(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
        for (int id : appWidgetIds) {
            RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.weather_appwidget);
            views.setTextViewText(R.id.date_text_view, mSimpleWeatherToShowList.get(0).getDataString());
            views.setImageViewUri(R.id.weather_icon_image_view, Uri.parse(mSimpleWeatherToShowList.get(0).getIconPath()));
            views.setTextViewText(R.id.temperature_text_view, mSimpleWeatherToShowList.get(0).getTemperatureString());
            views.setTextViewText(R.id.textforecast_text_view, mTextWeatherToShowList.get(0));
            appWidgetManager.updateAppWidget(id, views);
        }
    }

    private void fillWidgetsWithChoseCityMessage(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
        for (int id : appWidgetIds) {
            RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.weather_appwidget);
            views.setTextViewText(R.id.date_text_view, "today");
            views.setImageViewResource(R.id.weather_icon_image_view, R.drawable.ic_mood_bad_black_24dp);
            views.setTextViewText(R.id.temperature_text_view, "temperature");
            views.setTextViewText(R.id.textforecast_text_view, "Input City in main app");
            appWidgetManager.updateAppWidget(id, views);
        }
    }
}