package uk.orllewin.sianel.ui

import android.Manifest
import android.content.pm.PackageManager
import android.os.Build
import androidx.activity.compose.rememberLauncherForActivityResult
import androidx.activity.result.contract.ActivityResultContracts
import androidx.compose.runtime.Composable
import androidx.compose.runtime.LaunchedEffect
import androidx.compose.ui.platform.LocalContext
import androidx.core.content.ContextCompat

/**
 * On API 33+ the upload-progress foreground notification won't show unless the user
 * has granted POST_NOTIFICATIONS. Ask once, the first time this enters composition.
 * The progress notification is best-effort, so denial is silently ignored.
 */
@Composable
fun RequestNotificationPermissionOnce() {
    val context = LocalContext.current
    val launcher = rememberLauncherForActivityResult(
        ActivityResultContracts.RequestPermission()
    ) { /* best-effort; nothing to do on denial */ }
    LaunchedEffect(Unit) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
            val granted = ContextCompat.checkSelfPermission(
                context, Manifest.permission.POST_NOTIFICATIONS
            ) == PackageManager.PERMISSION_GRANTED
            if (!granted) launcher.launch(Manifest.permission.POST_NOTIFICATIONS)
        }
    }
}