[lb10] TimeService.kt

package com.example.lb10

import android.app.Service
import android.content.Intent
import android.os.Binder
import android.os.IBinder
import android.util.Log
import kotlinx.coroutines.GlobalScope
import kotlinx.coroutines.Job
import kotlinx.coroutines.delay
import kotlinx.coroutines.launch

class TimeService : Service() {
    private var counter = 0
    private lateinit var job: Job
    private val myBinder = MyBinder()
    private var counterInterval: Long = 1000
    private var startValue: Int = 0
    override fun onBind(intent: Intent?): IBinder? {
        return myBinder
    }

    inner class MyBinder : Binder() {
        fun getService() : TimeService {
            return this@TimeService
        }
    }

    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
        job = GlobalScope.launch {
            counter = startValue
            while (true) {
                delay(counterInterval)
                Log.d("SERVICE", "Timer Is Ticking: $counter (interval: $counterInterval)")
                val intent = Intent(BROADCAST_TIME_EVENT);
                intent.putExtra("counter", counter);
                sendBroadcast(intent);
                counter++
            }
        }
        return super.onStartCommand(intent, flags, startId)
    }

    override fun onDestroy() {
        counter = 0
        Log.d("SERVICE", "onDestroy")
        job.cancel()
        super.onDestroy()
    }

    fun setCounter(a: Int) {
        counter = a
        startValue = a
        Log.d("SERVICE", "setCounter to $a")
    }

    fun resetCounter() {
        counter = startValue
        Log.d("SERVICE", "resetCounter")
    }

    fun setInterval(a: Long) {
        counterInterval = a
        Log.d("SERVICE", "setInterval to $a")
    }
}