AndroidOD/app/src/main/java/im/ricochet/androidod/RemoteActivity.java

package im.ricochet.androidod;

import android.content.Intent;
import android.os.AsyncTask;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

import od.Od;

public class RemoteActivity extends AppCompatActivity {
    private static final String DEVICE_NAME_KEY = "deviceName";
    private static final String BATTERY_LEVEL_KEY = "batteryLevel";
    private static final String VIBE_LEVEL_KEY = "vibeLEvel";

    TextView deviceText;
    TextView batteryText;
    TextView statusText;

    Button offButton;
    Button lowButton;
    Button medButton;
    Button highButton;
    Button disconnectButton;

    int vibeLevel = 0;

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

        deviceText = (TextView)findViewById(R.id.deviceName);
        batteryText = (TextView)findViewById(R.id.batteryLevel);
        statusText = (TextView)findViewById(R.id.status);

        offButton = (Button)findViewById(R.id.offButton);
        lowButton = (Button)findViewById(R.id.lowButton);
        medButton = (Button)findViewById(R.id.medButton);
        highButton = (Button)findViewById(R.id.highButton);
        disconnectButton = (Button)findViewById(R.id.disconnetButton);

        offButton.setOnClickListener(new View.OnClickListener() {
             public void onClick(View v) {
                 SetLevelTask setLevelTask = new SetLevelTask();
                 setLevelTask.execute(0);
             }
         });
        lowButton.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                SetLevelTask setLevelTask = new SetLevelTask();
                setLevelTask.execute(2);
            }
        });
        medButton.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                SetLevelTask setLevelTask = new SetLevelTask();
                setLevelTask.execute(4);
            }
        });
        highButton.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                SetLevelTask setLevelTask = new SetLevelTask();
                setLevelTask.execute(6);
            }
        });

        disconnectButton.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                DisconnectTask disconnectTask = new DisconnectTask();
                disconnectTask.execute();
            }
        });


        if (savedInstanceState != null) {
            deviceText.setText(savedInstanceState.getString(DEVICE_NAME_KEY));
            batteryText.setText(savedInstanceState.getString(BATTERY_LEVEL_KEY));
            vibeLevel = savedInstanceState.getInt(VIBE_LEVEL_KEY);
            setVibeLevel(vibeLevel);
        } else {
            GetDeviceNameTask getDeviceNameTask = new GetDeviceNameTask();
            getDeviceNameTask.execute();

            GetBatteryTask getBatteryTask = new GetBatteryTask();
            getBatteryTask.execute();

            GetLevelTask getLevelTask = new GetLevelTask();
            getLevelTask.execute();
        }
    }

    @Override
    protected void onSaveInstanceState(final Bundle outState) {
        outState.putString(DEVICE_NAME_KEY, deviceText.getText().toString());
        outState.putString(BATTERY_LEVEL_KEY, batteryText.getText().toString());
        outState.putInt(VIBE_LEVEL_KEY, vibeLevel);
    }

    // current impelementation of OD server can return 0 to 6 (potentially downsampled from 12?)
    // The go API respects that, further downsample to [off low med high] here
    // Assuming 1 means off and 2-6 are active states...
    private void setVibeLevel(int newVibeLevel) {
        vibeLevel = newVibeLevel;
        if (vibeLevel == 1) {
            statusText.setText("Off");
        } else if (vibeLevel == 2) {
            statusText.setText("Low");
        } else if (vibeLevel == 3 || vibeLevel == 4) {
            statusText.setText("Medium");
        } else if (vibeLevel == 5 || vibeLevel == 6) {
            statusText.setText("High");
        }
    }

    private class GetDeviceNameTask extends AsyncTask<Void, Void, String> {
        @Override
        protected String doInBackground(Void... params) {
            String name = Od.getDeviceName();
            return name;
        }

        @Override
        protected void onPostExecute(String deviceName) {
            deviceText.setText(deviceName);
        }
    }

    private class GetBatteryTask extends AsyncTask<Void, Void, String> {
        @Override
        protected String doInBackground(Void... params) {
            String batteryLevel = Od.getBatteryLevel();
            return batteryLevel;
        }

        @Override
        protected void onPostExecute(String batteryLevel) {
            batteryText.setText(batteryLevel + "%");
        }
    }

    private class GetLevelTask extends AsyncTask<Void, Void, Integer> {
        @Override
        protected Integer doInBackground(Void... params) {
            Integer vibeLevel = (int) Od.getVibeLevel();
            return vibeLevel;
        }

        @Override
        protected void onPostExecute(Integer newVibeLevel) {
            setVibeLevel(newVibeLevel);
        }
    }

    private class SetLevelTask extends AsyncTask<Integer, Void, Integer> {
        @Override
        protected Integer doInBackground(Integer... params) {
            Integer newVibeLevel = params[0];
            Od.setVibeLevel(newVibeLevel);
            return newVibeLevel;
        }

        @Override
        protected void onPostExecute(Integer newVibeLevel) {
            setVibeLevel(newVibeLevel);
        }
    }

    private class DisconnectTask extends AsyncTask<Void, Void, Void> {
        @Override
        protected Void doInBackground(Void ...params) {
            Od.odClientDisconnect();
            return null;
        }

        @Override
        protected void onPostExecute(Void nothing) {
            Intent i = new Intent(getApplicationContext(), ConnectActivity.class);
            startActivity(i);
        }
    }
}