package com.example.appflash01

import android.app.AlertDialog
import android.content.Context
import android.content.DialogInterface
import android.content.pm.PackageManager
import android.hardware.camera2.CameraAccessException
import android.hardware.camera2.CameraManager
import android.os.Build
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.os.VibrationEffect
import android.os.Vibrator
import android.widget.Button
import android.widget.ToggleButton

class MainActivity : AppCompatActivity() {

    private lateinit var cameraManager: CameraManager
    private lateinit var cameraId: String

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        title = "Flash & Vibrate"

        // lámpa
        val isFlashAvailable = applicationContext.packageManager
            .hasSystemFeature(PackageManager.FEATURE_CAMERA_FRONT)
        if (!isFlashAvailable) {
            showNoFlashAlert()
        }
        cameraManager = getSystemService(Context.CAMERA_SERVICE) as CameraManager
        try {
            cameraId = cameraManager.cameraIdList[0]
        } catch (e: CameraAccessException) {
            e.printStackTrace()
        }

        val toggleButton: ToggleButton = findViewById(R.id.onOffFlashlight_toggleButton)
        toggleButton.setOnCheckedChangeListener { _, isChecked ->
            switchFlashLight(isChecked)
        }

        // rezgés
        val button: Button = findViewById(R.id.vibrate_button)
        button.setOnClickListener {
            val vbr = getSystemService(Context.VIBRATOR_SERVICE) as Vibrator
            if (Build.VERSION.SDK_INT >= 26) {

                //vbr.vibrate( VibrationEffect.createOneShot(500, VibrationEffect.DEFAULT_AMPLITUDE) )

                vbr.vibrate( VibrationEffect.createWaveform(
                    longArrayOf(300,200,300,200,300,200,600,200,200,200,200),
                    intArrayOf(255,0,255,0,255,0,255,0,255,0,255),
                    -1))
                } else {
                vbr.vibrate(200)
            }
        }

    }

    private fun showNoFlashAlert() {
        val alert = AlertDialog.Builder(this).create()
        alert.setTitle("Oops!")
        alert.setMessage("Flash not available in this device...")
        alert.setButton(DialogInterface.BUTTON_POSITIVE, "OK") {
                _, _ ->
            finish()
        }
        alert.show()
    }

    private fun switchFlashLight(status: Boolean) {
        try {
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                cameraManager.setTorchMode(cameraId, status)
            }
        } catch (e: CameraAccessException) {
            e.printStackTrace()
        }
    }
}