taler-ios

commit b13a08df19a443ae0c6489e0777c4e490506a0ea
parent 8a8a54a3391c8db354f146975872048f098ec22a
Author: Marc Stibane <marc@taler.net>
Date:   Thu,  5 Jun 2025 14:00:15 +0200

hintApplicationResumed

Diffstat:
M
TalerWallet1/Controllers/TalerWallet1App.swift
 | 
18
+++++++++++++++---
M
TalerWallet1/Model/WalletModel.swift
 | 
13
+++++++++++++

2 files changed, 28 insertions(+), 3 deletions(-)
diff --git a/TalerWallet1/Controllers/TalerWallet1App.swift b/TalerWallet1/Controllers/TalerWallet1App.swift
@@ -19,7 +19,7 @@ struct TalerWallet1App: App {
     @Environment(\.scenePhase) private var phase
     @StateObject private var viewState = ViewState.shared           // popToRootView()
     @StateObject private var viewState2 = ViewState2.shared         // popToRootView()
-    @State private var isActive = true
+    @State private var backgrounded: Date?
     @State private var soundPlayed = false
 
     private let walletCore = WalletCore.shared
@@ -34,6 +34,11 @@ struct TalerWallet1App: App {
         try? BGTaskScheduler.shared.submit(request)
     }
 
+    func hintApplicationResumed() {
+        Task.detached {
+            await model.hintApplicationResumedT()
+        }
+    }
     var body: some Scene {
         WindowGroup {
             MainView(logger: logger, stack: CallStack("App"), soundPlayed: $soundPlayed)
@@ -51,11 +56,18 @@ struct TalerWallet1App: App {
                 }
                 .onReceive(NotificationCenter.default.publisher(for: UIApplication.willResignActiveNotification, object: nil)) { _ in
                     logger.log("❗️App Will Resign")
-                    isActive = false
+                    backgrounded = Date.now
                 }
                 .onReceive(NotificationCenter.default.publisher(for: UIApplication.willEnterForegroundNotification, object: nil)) { _ in
                     logger.log("❗️App Will Enter Foreground")
-                    isActive = true
+                    if let backgrounded {
+                        let interval = Date.now - backgrounded
+                        if interval.seconds > 300 {     // 5 minutes
+                            logger.log("More than 5 minutes in background - tell wallet-core")
+                            hintApplicationResumed()
+                        }
+                    }
+                    backgrounded = nil
                 }
                 .onReceive(NotificationCenter.default.publisher(for: UIApplication.didBecomeActiveNotification, object: nil)) { _ in
                     logger.log("❗️App Did Become Active")
diff --git a/TalerWallet1/Model/WalletModel.swift b/TalerWallet1/Model/WalletModel.swift
@@ -158,6 +158,14 @@ class WalletModel: ObservableObject {
 }
 // MARK: -
 /// A request to tell wallet-core about the network.
+fileprivate struct ApplicationResumedRequest: WalletBackendFormattedRequest {
+    struct Response: Decodable {}
+    func operation() -> String { "hintApplicationResumed" }
+    func args() -> Args { Args() }
+
+    struct Args: Encodable {}                           // no arguments needed
+}
+
 fileprivate struct NetworkAvailabilityRequest: WalletBackendFormattedRequest {
     struct Response: Decodable {}
     func operation() -> String { "hintNetworkAvailability" }
@@ -176,6 +184,11 @@ extension WalletModel {
         let request = NetworkAvailabilityRequest(isNetworkAvailable: isNetworkAvailable)
         _ = try? await sendRequest(request)
     }
+    func hintApplicationResumedT() async {
+        // T for any Thread
+        let request = ApplicationResumedRequest()
+        _ = try? await sendRequest(request)
+    }
 }
 // MARK: -
 /// A request to get a wallet transaction by ID.