package io.sjf.overlay;

import android.annotation.TargetApi;
import android.content.Intent;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.provider.Settings;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;

public class MainActivity extends AppCompatActivity {

    private static final String TAG = "Overlay";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        if (checkDrawOverlayPermission()) {
            startOverlayService();
        }
    }

    private static int REQUEST_CODE = 1;
    private boolean checkDrawOverlayPermission() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            /** check if we already  have permission to draw over other apps */
            if (!Settings.canDrawOverlays(this)) {
                Log.d(TAG, "canDrawOverlays NOK");
                /** if not construct intent to request permission */
                Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION,
                        Uri.parse("package:" + getPackageName()));
                /** request permission via start activity for result */
                startActivityForResult(intent, REQUEST_CODE);
                return false;
            } else {
                Log.d(TAG, "canDrawOverlays OK");
            }
        }
        return true;
    }

    @Override
    @TargetApi(Build.VERSION_CODES.M)
    protected void onActivityResult(int requestCode, int resultCode,  Intent data) {
        /** check if received result code
          is equal our requested code for draw permission  */
        if (requestCode == REQUEST_CODE) {
            if (Settings.canDrawOverlays(this)) {
                startOverlayService();
            }
        }
    }

    private void startOverlayService() {
        Intent intent = new Intent(this, OverlayService.class);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            startForegroundService(intent);
        } else {
            startService(intent);
        }
    }
}