package nl.eddydevink.buschauffeurswekker.receivers

import android.app.PendingIntent
import android.content.BroadcastReceiver
import android.content.Context
import android.content.Intent
import android.os.PowerManager
import nl.eddydevink.buschauffeurswekker.AlarmActivity
import nl.eddydevink.buschauffeurswekker.core.AlarmScheduler
import nl.eddydevink.buschauffeurswekker.core.Notifier

/** Afgaande wekker: toont de alarmactivity (via full-screen intent) en houdt het scherm wakker. */
class AlarmRingReceiver : BroadcastReceiver() {

    override fun onReceive(context: Context, intent: Intent) {
        val name = intent.getStringExtra(AlarmScheduler.EXTRA_NAME) ?: "Wekker"
        val ringTime = intent.getLongExtra(AlarmScheduler.EXTRA_RING_TIME, System.currentTimeMillis())
        val snoozed = intent.getBooleanExtra(AlarmScheduler.EXTRA_SNOOZED, false)

        // Wakkere CPU houden tot de alarmactivity het overneemt.
        val pm = context.getSystemService(Context.POWER_SERVICE) as PowerManager
        @Suppress("DEPRECATION")
        val wakelock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "buschauffeurswekker:ring")
        wakelock.acquire(RING_WAKELOCK_MS)
        heldWakelock?.release()
        heldWakelock = wakelock

        val alarmIntent = Intent(context, AlarmActivity::class.java)
            .putExtra(AlarmScheduler.EXTRA_NAME, name)
            .putExtra(AlarmScheduler.EXTRA_RING_TIME, ringTime)
            .putExtra(AlarmScheduler.EXTRA_SNOOZED, snoozed)
            .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TOP)

        // Full-screen intent: het systeem toont de activity bovenop het vergrendelscherm.
        val fullScreenPi = PendingIntent.getActivity(
            context, name.hashCode(), alarmIntent,
            PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE,
        )
        Notifier.showAlarm(context, name, ringTime, fullScreenPi)

        // Directe start als het mag (scherm aan/niet vergrendeld); anders neemt de
        // full-screen intent het over.
        runCatching { context.startActivity(alarmIntent) }
    }

    companion object {
        private const val RING_WAKELOCK_MS = 10 * 60 * 1000L

        /** Wordt door AlarmActivity vrijgegeven zodra de wekker is afgehandeld. */
        @Volatile
        var heldWakelock: PowerManager.WakeLock? = null
            private set

        fun releaseHeldWakelock() {
            heldWakelock?.let {
                if (it.isHeld) it.release()
            }
            heldWakelock = null
        }
    }
}