Local Zap Notifications

Changelog-Added: Local zap notifications

damus/ContentView.swift

@@ -776,7 +776,6 @@ func setup_notifications() {
     }
 }
 
-
 func find_event(state: DamusState, evid: String, search_type: SearchType, find_from: [String]?, callback: @escaping (NostrEvent?) -> ()) {
     if let ev = state.events.lookup(evid) {
         callback(ev)

damus/Models/HomeModel.swift

@@ -145,9 +145,13 @@ class HomeModel: ObservableObject {
             return
         }
 
-        if handle_last_event(ev: ev, timeline: .notifications) && damus_state.settings.zap_vibration {
-            // Generate zap vibration
-            zap_vibrate(zap_amount: zap.invoice.amount)
+        if handle_last_event(ev: ev, timeline: .notifications) {
+            if damus_state.settings.zap_vibration {
+                // Generate zap vibration
+                zap_vibrate(zap_amount: zap.invoice.amount)
+            }
+            // Create in-app local notification for zap received.
+            create_in_app_zap_notification(zap_amount: zap.invoice.amount)
         }
 
         return
@@ -928,3 +932,24 @@ func zap_vibrate(zap_amount: Int64) {
     vibration_generator.impactOccurred()
 }
 
+func create_in_app_zap_notification(zap_amount: Int64) {
+    let sats = zap_amount / 1000
+    let content = UNMutableNotificationContent()
+    content.title = "Zap"
+    let satString = sats == 1 ? "sat" : "sats"
+    content.body = "You have just received \(sats) \(satString)"
+    content.sound = UNNotificationSound.default
+
+    let trigger = UNTimeIntervalNotificationTrigger(timeInterval: 1, repeats: false)
+
+    let request = UNNotificationRequest(identifier: "myZapNotification", content: content, trigger: trigger)
+
+    UNUserNotificationCenter.current().add(request) { error in
+        if let error = error {
+            print("Error: \(error)")
+        } else {
+            print("Local notification scheduled")
+        }
+    }
+}
+

damus/damusApp.swift

@@ -9,6 +9,7 @@ import SwiftUI
 
 @main
 struct damusApp: App {
+    @UIApplicationDelegateAdaptor(AppDelegate.self) var appDelegate
     var body: some Scene {
         WindowGroup {
             MainView()
@@ -43,6 +44,19 @@ struct MainView: View {
     }
 }
 
+class AppDelegate: NSObject, UIApplicationDelegate, UNUserNotificationCenterDelegate {
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey : Any]? = nil) -> Bool {
+        UNUserNotificationCenter.current().delegate = self
+        return true
+    }
+
+    // Handle the notification in the foreground state
+    func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
+        // Display the notification in the foreground
+        completionHandler([.alert, .sound, .badge])
+    }
+}
+
 func needs_setup() -> Keypair? {
     return get_saved_keypair()
 }