package com.test.alert;

import android.app.Fragment;
import android.content.Context;
import android.content.pm.PackageManager;
import android.hardware.Camera;
import android.widget.Toast;

/**
 * Created by Ali Akbar on 1/16/2017.
 */

public class AlertAndroidPlugin extends Fragment{

    private static Camera camOpen;

    private Context myContext;

    //Search for the back facing camera
    private int GetBackCamera(){
        int cameraId = -1;
        //get the number of cameras
        int numberOfCameras = Camera.getNumberOfCameras();
        //for every camera check
        for (int i = 0; i < numberOfCameras; i++) {
            Camera.CameraInfo info = new Camera.CameraInfo();
            Camera.getCameraInfo(i, info);
            if (info.facing == Camera.CameraInfo.CAMERA_FACING_BACK) {
                cameraId = i;
                break;
            }
        }
        return cameraId;
    }

    public void FlashLightOn(Context tempContext) {
        myContext = tempContext;

        try {
            if (myContext.getPackageManager().hasSystemFeature(
                    PackageManager.FEATURE_CAMERA) &&
                    myContext.getPackageManager().hasSystemFeature(
                            PackageManager.FEATURE_CAMERA_FLASH)) {
                camOpen = Camera.open(GetBackCamera());
                Camera.Parameters p = camOpen.getParameters();
                p.setFlashMode(Camera.Parameters.FLASH_MODE_TORCH);
                camOpen.setParameters(p);
                camOpen.startPreview();
            }
        } catch (Exception e) {
            e.printStackTrace();
            Toast.makeText(myContext, "Exception flashLightOn()", Toast.LENGTH_SHORT).show();
        }
    }

    public void FlashLightOff(Context tempContext) {
        myContext = tempContext;

        try {
            if (myContext.getPackageManager().hasSystemFeature(
                    PackageManager.FEATURE_CAMERA) &&
                    myContext.getPackageManager().hasSystemFeature(
                            PackageManager.FEATURE_CAMERA_FLASH)) {
                camOpen.stopPreview();
                camOpen.release();
                camOpen = null;
            }
        } catch (Exception e) {
            e.printStackTrace();
            Toast.makeText(myContext, "Exception flashLightOff()", Toast.LENGTH_SHORT).show();
        }
    }
}