import android.app.Notification
import android.app.NotificationManager
import android.app.PendingIntent
import android.content.Context
import android.graphics.Bitmap
import android.graphics.BitmapFactory
import android.os.Bundle
import androidx.core.app.NotificationCompat
import io.flutter.embedding.android.FlutterActivity
import io.flutter.plugin.common.MethodChannel

class MainActivity : FlutterActivity() {
    private val CHANNEL = "custom_notifications"

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        // Bildirim kanalını oluşturuyoruz
        createNotificationChannel()

        // Flutter tarafındaki MethodChannel işlemleri
        MethodChannel(flutterEngine!!.dartExecutor, CHANNEL).setMethodCallHandler { call, result ->
            if (call.method == "showNotification") {
                val imageData = call.argument<ByteArray>("image")
                if (imageData != null) {
                    val image = BitmapFactory.decodeByteArray(imageData, 0, imageData.size)
                    showNotification(image)
                }
                result.success(null)
            } else {
                result.notImplemented()
            }
        }
    }

    // Bildirim kanalı oluşturma
    private fun createNotificationChannel() {
        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
            val channel = NotificationChannel(
                "default", // Kanal kimliği
                "Default Channel", // Kanal adı
                NotificationManager.IMPORTANCE_DEFAULT
            ).apply {
                description = "This is the default notification channel."
            }

            // NotificationManager servisini alıyoruz
            val notificationManager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
            notificationManager.createNotificationChannel(channel)
        }
    }

    // Bildirim gösterme
    private fun showNotification(image: Bitmap) {
        val notificationManager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager

        // Bildirim oluşturma
        val builder = NotificationCompat.Builder(this, "default")
            .setSmallIcon(android.R.drawable.ic_notification_overlay)
            .setContentTitle("Flutter Bildirimi")
            .setContentText("Buna tıklayın!")
            .setLargeIcon(image) // Görseli büyük ikon olarak ayarlıyoruz
            .setStyle(NotificationCompat.BigPictureStyle().bigPicture(image).bigLargeIcon(null))
            .setAutoCancel(true)

        // Bildirim tıklama olayını ayarlıyoruz
        val pendingIntent = PendingIntent.getActivity(
            this,
            0,
            intent,
            PendingIntent.FLAG_UPDATE_CURRENT
        )
        builder.setContentIntent(pendingIntent)

        // Bildirimi gösteriyoruz
        notificationManager.notify(1, builder.build())
    }
}