package br.com.elwnet.manuia

import android.app.*
import android.content.Intent
import android.os.Build
import android.os.IBinder
import android.util.Log
import androidx.core.app.NotificationCompat

/**
 * MikeAI Foreground Service
 * Mantém o app vivo em background para o wake word funcionar.
 * Mostra notificação persistente "MikeAI está ouvindo..."
 */
class MikeForegroundService : Service() {

    companion object {
        const val CHANNEL_ID = "mikeai_listening"
        const val NOTIF_ID   = 1001
        const val ACTION_START = "START"
        const val ACTION_STOP  = "STOP"
    }

    override fun onBind(intent: Intent?): IBinder? = null

    override fun onCreate() {
        super.onCreate()
        createNotificationChannel()
    }

    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
        when (intent?.action) {
            ACTION_STOP -> {
                stopForeground(STOP_FOREGROUND_REMOVE)
                stopSelf()
                return START_NOT_STICKY
            }
            else -> {
                val notif = buildNotification()
                startForeground(NOTIF_ID, notif)
            }
        }
        return START_STICKY
    }

    private fun buildNotification(): Notification {
        val openIntent = PendingIntent.getActivity(
            this, 0,
            Intent(this, MainActivity::class.java),
            PendingIntent.FLAG_IMMUTABLE or PendingIntent.FLAG_UPDATE_CURRENT
        )

        return NotificationCompat.Builder(this, CHANNEL_ID)
            .setSmallIcon(android.R.drawable.ic_btn_speak_now)
            .setContentTitle("MikeAI")
            .setContentText("Diga \"Mike\" para ativar...")
            .setOngoing(true)
            .setSilent(true)
            .setCategory(Notification.CATEGORY_SERVICE)
            .setContentIntent(openIntent)
            .build()
    }

    private fun createNotificationChannel() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            val channel = NotificationChannel(
                CHANNEL_ID,
                "MikeAI Ouvindo",
                NotificationManager.IMPORTANCE_MIN
            ).apply {
                description = "Mantém o MikeAI ativo para reconhecer seu nome"
                setShowBadge(false)
            }
            getSystemService(NotificationManager::class.java)
                .createNotificationChannel(channel)
        }
    }
}