Garage Commander - Garage Opener

package com.example.gusgonnet.myfirstapp;

//TODO: now
// - app has to have a get and a post function
// - app has to refresh status at beginning
// - have a settings page
// - store Access Token and Device ID
// - make the spark return open/close status in one call

//TODO: later
// - store email, password, Device ID
// - get an access token from email and password


import android.app.Activity;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.content.Intent;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.Toast;

import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.URL;

public class MyActivity extends Activity {

    public enum AppStatus { REFRESHING, OPENING, CLOSING, OPEN, CLOSED, UNKNOWN };

    RelativeLayout DefaultLayout;
    RelativeLayout WaitingLayout;

    Button actionButton;
    TextView waitingTextView;

    public static AppStatus appStatus = AppStatus.CLOSED;

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu items for use in the action bar
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.my, menu);  //this was main_activity_actions -> my
        return super.onCreateOptionsMenu(menu);
    }

    public void actionButtonClickHandler(View view) {

        //replace 121345678901234567890 with your particle photon id
        String url = "https://api.spark.io/v1/devices/121345678901234567890/garage_open";

        ConnectivityManager connMgr = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo networkInfo = connMgr.getActiveNetworkInfo();
        if (networkInfo != null && networkInfo.isConnected()) {
            appStatus = updateAppStatus(appStatus);
            updateLayout(appStatus);
            new sendCommand().execute(url);
        } else {
            Toast toast = Toast.makeText(getApplicationContext(), "Something wrong\r\nno internet connection?", Toast.LENGTH_LONG);
            toast.show();
        }
    }

    // Uses AsyncTask to create a task away from the main UI thread. This task takes a
    // URL string and uses it to create an HttpUrlConnection. Once the connection
    // has been established, the AsyncTask downloads the contents of the webpage as
    // an InputStream. Finally, the InputStream is converted into a string, which is
    // displayed in the UI by the AsyncTask's onPostExecute method.
    private class sendCommand extends AsyncTask<String, Void, String> {

        private static final String DEBUG_TAG = "HomeCommander";

        protected void onPostExecute (String result) {
                //check that the response indicates success
                if (result.toLowerCase().contains("\"return_value\": 0") ) {
                    Toast toast = Toast.makeText(getApplicationContext(), "Success!", Toast.LENGTH_LONG);
                    toast.show();
                    appStatus = updateAppStatus(appStatus);
                } else {
                    Toast toast = Toast.makeText(getApplicationContext(), "Something went wrong! \r\n" + result, Toast.LENGTH_LONG);
                    toast.show();
                    appStatus = rollbackAppStatus(appStatus);
                }
            updateLayout(appStatus);
        }


        @Override
        protected String doInBackground(String... urls) {

            // params comes from the execute() call: params[0] is the url.
            try {
                return sendCommandToSparkCloud(urls[0]);
            } catch (IOException e) {
                return "problems with the url?";
            }
        }


        // establishes an HttpUrlConnection and sends a command to the Spark cloud
        // it returns the response as a string
        private String sendCommandToSparkCloud(String myurl) throws IOException {
            InputStream is = null;

            try {
                URL url = new URL(myurl);
                HttpURLConnection conn = (HttpURLConnection) url.openConnection();
                conn.setReadTimeout(10000 /* milliseconds */);
                conn.setConnectTimeout(15000 /* milliseconds */);
                conn.setRequestMethod("POST");
                //replace 121345678901234567890 here with your particle auth token
                conn.setRequestProperty ("Authorization", "Bearer 121345678901234567890");
                conn.setDoOutput(true);

                // sends the request
                conn.connect();

                //get the response code
                int response = conn.getResponseCode();
                Log.d(DEBUG_TAG, "The response code is: " + response);

                // get the response content
                is = conn.getInputStream();
                // we are interested in only the first 500 chars
                String responseAsString = stream2string(is, 500);
                Log.d(DEBUG_TAG, "The response content is: " + responseAsString);

                return responseAsString;

                // This makes sure that the InputStream is closed after the app is
                // finished using it.
            } finally {
                if (is != null) {
                    is.close();
                }
            }
        }

        // Reads an InputStream and converts it to a String.
        public String stream2string(InputStream stream, int len) throws IOException, UnsupportedEncodingException {
            Reader reader = new InputStreamReader(stream, "UTF-8");
            char[] buffer = new char[len];
            reader.read(buffer);
            return new String(buffer);
        }

    }

        @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_my);

            DefaultLayout=(RelativeLayout)findViewById(R.id.DefaultLayout);
            WaitingLayout=(RelativeLayout)findViewById(R.id.WaitingLayout);

            actionButton = (Button)findViewById(R.id.actionButton);
            waitingTextView = (TextView)findViewById(R.id.waitingTextView);

            updateLayout(appStatus);

    }

    public void updateLayout(AppStatus appStatus) {
        switch (appStatus) {
            case OPENING:
                waitingTextView.setText(getString(R.string.opening_garage));
                DefaultLayout.setVisibility(View.GONE);
                WaitingLayout.setVisibility(View.VISIBLE);
                break;

            case CLOSING:
                waitingTextView.setText(getString(R.string.closing_garage));
                DefaultLayout.setVisibility(View.GONE);
                WaitingLayout.setVisibility(View.VISIBLE);
                break;

            case REFRESHING:
                waitingTextView.setText(getString(R.string.refreshing));
                DefaultLayout.setVisibility(View.GONE);
                WaitingLayout.setVisibility(View.VISIBLE);
                break;

            case OPEN:
                actionButton.setText(getString(R.string.close_garage));
                DefaultLayout.setVisibility(View.VISIBLE);
                WaitingLayout.setVisibility(View.GONE);
                break;

            case CLOSED:
                actionButton.setText(getString(R.string.open_garage));
                DefaultLayout.setVisibility(View.VISIBLE);
                WaitingLayout.setVisibility(View.GONE);
                break;

            case UNKNOWN:
                actionButton.setText(getString(R.string.open_close_garage));
                DefaultLayout.setVisibility(View.VISIBLE);
                WaitingLayout.setVisibility(View.GONE);
                break;
        }

    }

    public AppStatus updateAppStatus(AppStatus appStatus) {
        switch (appStatus) {
            case OPEN:
                return AppStatus.CLOSING;

            case CLOSING:
                return AppStatus.CLOSED;

            case CLOSED:
                return AppStatus.OPENING;

            case OPENING:
                return AppStatus.OPEN;

            case REFRESHING:
            case UNKNOWN:
            //TODO: not sure what to do here, so for now we don't change the appStatus
        }
        return appStatus;
    }

    public AppStatus rollbackAppStatus(AppStatus appStatus) {
        switch (appStatus) {
            case CLOSING:
                return AppStatus.OPEN;

            case OPENING:
                return AppStatus.CLOSED;

            case OPEN:
            case CLOSED:
            case REFRESHING:
            case UNKNOWN:
                //TODO: not sure what to do here, so for now we don't change the appStatus
        }
        return appStatus;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        switch (item.getItemId()) {
            case R.id.action_settings:
//                openSettings();
                Toast toast = Toast.makeText(getApplicationContext(), "Settings are coming soon...", Toast.LENGTH_SHORT);
                toast.show();
                return true;
            default:
                return super.onOptionsItemSelected(item);
        }
    }
}