Making Stormy Location Aware using Google Play Services

package com.leetinsider.skymate;

import android.content.Context;
import android.content.pm.PackageManager;
import android.graphics.drawable.Drawable;
import android.location.Location;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;

import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.location.LocationServices;

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

import java.io.IOException;

import butterknife.BindView;
import butterknife.ButterKnife;
import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;

public class MainActivity extends AppCompatActivity implements
        GoogleApiClient.ConnectionCallbacks,
        GoogleApiClient.OnConnectionFailedListener {

    public static final String TAG = MainActivity.class.getSimpleName();

    public CurrentWeather mCurrentWeather;

    protected GoogleApiClient mGoogleApiClient;
    protected Location mLastLocation;

    double latitude;
    double longitude;

    @BindView(R.id.timeLabel) TextView mTimeLabel;
    @BindView(R.id.temperatureLabel) TextView mTemperatureLabel;
    @BindView(R.id.humidityValue) TextView mHumidityValue;
    @BindView(R.id.precipValue) TextView mPrecipValue;
    @BindView(R.id.summaryTextView) TextView mSummaryLabel;
    @BindView(R.id.iconImageView) ImageView mIconImageView;
    @BindView(R.id.refreshImageView) ImageView mRefreshImageView;
    @BindView(R.id.progressBar) ProgressBar mProgressBar;
    @BindView(R.id.locationLabel) TextView mLocationLabel;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        // Import view variables
        ButterKnife.bind(this);

        buildGoogleApiClient();


        // Set default progressbar to invisible 
        mProgressBar.setVisibility(View.INVISIBLE);


        // Create onClick for the refresh button
        mRefreshImageView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                getForecast(latitude, longitude);
            }
        });

        getForecast(latitude, longitude);


    }

    private synchronized void buildGoogleApiClient() {
        mGoogleApiClient = new GoogleApiClient.Builder(this)
                .addConnectionCallbacks(this)
                .addOnConnectionFailedListener(this)
                .addApi(LocationServices.API)
                .build();
    }

    private void getForecast(double latitude, double longitude) {
        // Compose the Forecast IO url into separate variables
        String apiKey = "4d0e45683b7534f37310e7e716272643";
        String forecastUrl = "https://api.forecast.io/forecast/" + apiKey +
                "/" + latitude + "," + longitude;

        // Check if network is available using isNetworkAvailable(). True then fire GET Request
        // Else display Toast message of no network.
        if (isNetworkAvailable()) {
            // Check the status of progress bar and update refresh image
            toggleRefresh();

            // Start a new http client request to GET JSON data
            OkHttpClient client = new OkHttpClient();
            Request request = new Request.Builder()
                    .url(forecastUrl)
                    .build();
            Call call = client.newCall(request);
            call.enqueue(new Callback() {
                @Override
                public void onFailure(Call call, IOException e) {
                    runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            toggleRefresh();
                        }
                    });
                    alertUserAboutError("Failure!", "There seems to be an issue getting current weather.");
                }

                @Override
                public void onResponse(Call call, Response response) throws IOException {
                    runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            toggleRefresh();
                        }
                    });
                    try {
                        String jsonData = response.body().string();
                        Log.v(TAG, jsonData);
                        if (response.isSuccessful()) {
                            //If response is good, get current weather from json
                            mCurrentWeather = getCurrentDetails(jsonData);
                            // After parsing JSON data, update the views with data on UiThread
                            runOnUiThread(new Runnable() {
                                @Override
                                public void run() {
                                    updateDisplay();
                                }
                            });
                        } else {
                            // Dialog text appear if there is an issue with connecting to the service
                            alertUserAboutError("Sorry!", "There was an error");
                        }
                    } catch (IOException e) {
                        Log.e(TAG, "Exception caught: ", e);
                    } catch (JSONException e) {
                        Log.e(TAG, "Exception caught: ", e);
                    }
                }
            });
        } else {
            alertUserAboutError("Network!", "Device not connected to network. Please verify " +
                    "network connectivity or signal.");
        }
    }

    private void toggleRefresh() {
        //Hide Refresh Button - Show Spinner
        if (mProgressBar.getVisibility() == View.INVISIBLE) {
            mProgressBar.setVisibility(View.VISIBLE);
            mRefreshImageView.setVisibility(View.INVISIBLE);
        }
        //Show Refresh Button - Hide Spinner
        else {
            mProgressBar.setVisibility(View.INVISIBLE);
            mRefreshImageView.setVisibility(View.VISIBLE);
        }
    }

    private void updateDisplay() {
        mTemperatureLabel.setText(mCurrentWeather.getTemperature() + "");
        mTimeLabel.setText("At " + mCurrentWeather.getFormattedTime() + " it will be");
        mHumidityValue.setText(mCurrentWeather.getHumidity() + "");
        mPrecipValue.setText(mCurrentWeather.getPrecipChance() + "%");
        mSummaryLabel.setText(mCurrentWeather.getSummary());

        Drawable drawable = getResources().getDrawable(mCurrentWeather.getIconId());
        mIconImageView.setImageDrawable(drawable);
    }

    private CurrentWeather getCurrentDetails(String jsonData) throws JSONException {
        // New JSON object named forecast that takes the jsonData as parameter
        JSONObject forecast = new JSONObject(jsonData);
        // Set variables from the JSON key value
        String timezone = forecast.getString("timezone");
        Log.i(TAG, "From JSON object " + timezone);

        JSONObject currently = forecast.getJSONObject("currently");

        CurrentWeather currentWeather = new CurrentWeather();
        currentWeather.setHumidity(currently.getDouble("humidity"));
        currentWeather.setTime(currently.getLong("time"));
        currentWeather.setIcon(currently.getString("icon"));
        currentWeather.setPrecipChance(currently.getDouble("precipProbability"));
        currentWeather.setSummary(currently.getString("summary"));
        currentWeather.setTemperature(currently.getDouble("temperature"));
        currentWeather.setTimeZone(timezone);

        Log.d(TAG, currentWeather.getFormattedTime());

        return currentWeather;
    }

    private boolean isNetworkAvailable() {
        ConnectivityManager manager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo networkInfo = manager.getActiveNetworkInfo();
        boolean isAvailable = false;
        if (networkInfo != null && networkInfo.isConnected()) {
            isAvailable = true;
        }
        return isAvailable;
    }

    private void alertUserAboutError(String alertTitle, String alertBody) {
        Bundle messageArgs = new Bundle();

        // Use the arguments to set up the bundle
        messageArgs.putString(AlertDialogFragment.TITLE_ID, alertTitle);
        messageArgs.putString(AlertDialogFragment.MESSAGE_ID, alertBody);

        AlertDialogFragment dialog = new AlertDialogFragment();
        dialog.setArguments(messageArgs);
        dialog.show(getFragmentManager(), "error_dialog");
    }

// ********** Methods below deal with Google Play API Location **************

    @Override
    protected void onStart() {
        super.onStart();
        mGoogleApiClient.connect();
    }

    @Override
    protected void onStop() {
        super.onStop();
        if (mGoogleApiClient.isConnected()) {
            mGoogleApiClient.disconnect();
        }
    }

    @Override
    public void onConnected(@Nullable Bundle bundle) {
        // Provides a simple way of getting a device's location and is well suited for
        // applications that do not require a fine-grained location and that do not need location
        // updates. Gets the best and most recent location currently available, which may be null
        // in rare cases when a location is not available.
        if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {

            return;
        }
        mLastLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
        if (mLastLocation != null) {
            latitude = mLastLocation.getLatitude();
            longitude = mLastLocation.getLongitude();
        } else {
            Toast.makeText(this, "No location detected", Toast.LENGTH_LONG).show();
        }

    }

    @Override
    public void onConnectionSuspended(int i) {
        // The connection to Google Play services was lost for some reason. We call connect() to
        // attempt to re-establish the connection
        Log.i(TAG, "Connection suspended");
        mGoogleApiClient.connect();

    }

    @Override
    public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
        // Refer to the javadoc for ConnectionResult to see what error codes might be returned in
        // onConnectionFailed.
        Log.i(TAG, "Connection failed: ConnectionResult.getErrorCode() = " + connectionResult.getErrorCode());

    }
}