NotificationManager in SwiftUI

NotificationManager.swift

import Foundation
import UserNotifications
import SwiftUI

@MainActor
class NotificationManager: ObservableObject{
  @Published private(set) var hasPermission = false
  
  init() {
    Task{
      await getAuthStatus()
    }
  }
  
  func request() async{
    do {
      try await UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .badge, .sound])
      await getAuthStatus()
    } catch{
      print(error)
    }
  }
  
  func getAuthStatus() async {
    let status = await UNUserNotificationCenter.current().notificationSettings()
    switch status.authorizationStatus {
    case .authorized, .ephemeral, .provisional:
      hasPermission = true
    default:
      hasPermission = false
    }
  }
}

@main
struct YourApp: App {
  @StateObject
  private var notificationManager = NotificationManager()

  var body: some Scene {
    WindowGroup {
      ContentView()
        .environmentObject(notificationManager)
    }
  }
}

struct ContentView: View {
  
  @EnvironmentObject
  private var notificationManager: NotificationManager

  var body: some View {
    Text("Hello Indie App Accelerator!")
       .onAppear {
          if !notificationManager.hasPermission {
            Task {
              await notificationManager.request()
            }
          }
        }
  }
}