package com.enterprise.mdm

import android.app.Application
import android.app.NotificationChannel
import android.app.NotificationManager
import android.os.Build
import androidx.work.Constraints
import androidx.work.ExistingPeriodicWorkPolicy
import androidx.work.NetworkType
import androidx.work.PeriodicWorkRequestBuilder
import androidx.work.WorkManager
import com.enterprise.mdm.work.SyncWorker
import java.util.concurrent.TimeUnit

class MdmApp : Application() {
    override fun onCreate() {
        super.onCreate()
        createChannel()
        schedulePeriodicSync()
    }

    private fun createChannel() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            val ch = NotificationChannel(CHANNEL_ID, "MDM Notifications", NotificationManager.IMPORTANCE_HIGH)
            getSystemService(NotificationManager::class.java).createNotificationChannel(ch)
        }
    }

    private fun schedulePeriodicSync() {
        val constraints = Constraints.Builder().setRequiredNetworkType(NetworkType.CONNECTED).build()
        val req = PeriodicWorkRequestBuilder<SyncWorker>(15, TimeUnit.MINUTES)
            .setConstraints(constraints).build()
        WorkManager.getInstance(this)
            .enqueueUniquePeriodicWork("mdm_sync", ExistingPeriodicWorkPolicy.KEEP, req)
    }

    companion object { const val CHANNEL_ID = "mdm_default" }
}