package com.example.torton.mysensorlistener;


import android.app.Activity;
import android.content.Context;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

import java.util.List;

public class SensorActivity extends Activity implements SensorEventListener {

    private SensorManager sensorManager;
    private Sensor accelerometer;

    @Override
    protected void onPause() {
        super.onPause();
        // unregister sensor listenerth
        if( accelerometer != null && sensorManager != null ) {
            sensorManager.unregisterListener(this, accelerometer);
        }
    }

    @Override
    protected void onResume() {
        super.onResume();
        // register sensor listener
        if( accelerometer != null && sensorManager != null ){
            sensorManager.registerListener(this, accelerometer, SensorManager.SENSOR_DELAY_UI);
        }
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_sensor);
        Button startSensorsButton = findViewById(R.id.startSensorsButton);
        startSensorsButton.setOnClickListener( view-> {
            startSensors();
        });

    }

    private void startSensors() {
        // Rekisteröidytään kuuntelemaan sensoreita
        sensorManager = (SensorManager)getSystemService(Context.SENSOR_SERVICE);
        // Listataan alla olevat sensorit
        List<Sensor> sensorsOnDevice = sensorManager.getSensorList(Sensor.TYPE_ALL);
        for( Sensor s : sensorsOnDevice ){
            Toast.makeText(this, "Name: " + s.getName() + " Vendor: " + s.getVendor(),
                    Toast.LENGTH_SHORT).show();
        }
        accelerometer = sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
        if( accelerometer != null ){
            // rekisteröidytään kuuntelijaksi
            sensorManager.registerListener( this, accelerometer, SensorManager.SENSOR_DELAY_UI );
        }
    }

    @Override
    public void onSensorChanged(SensorEvent sensorEvent) {
        // Käsitellään sensoritapahtuma
        float xSensor = sensorEvent.values[0];
        float ySensor = sensorEvent.values[1];
        float zSensor = sensorEvent.values[2];

        // Päivitetään UI
        TextView sensorTextView = findViewById(R.id.sensorTextView);
        sensorTextView.setText( "X: " + xSensor + " Y: " + ySensor + " Z: " + zSensor );

    }
    @Override
    public void onAccuracyChanged(Sensor sensor, int i) {

    }
}