feat: connection issues view

Bitkit/Components/ConnectionIssuesView.swift

@@ -0,0 +1,121 @@
+import SwiftUI
+
+/// A full-screen overlay displayed when the device loses internet connectivity.
+/// Shows a phone illustration with animated dashed gradient rings and a loading spinner.
+struct ConnectionIssuesView: View {
+    let title: String
+
+    var body: some View {
+        VStack(alignment: .leading, spacing: 0) {
+            SheetHeader(title: title, showBackButton: false)
+
+            Spacer().frame(height: 24)
+
+            ZStack(alignment: .center) {
+                DashedRingsLayer(radii: [200])
+
+                Image("phone")
+                    .resizable()
+                    .aspectRatio(contentMode: .fit)
+                    .frame(width: 311)
+
+                DashedRingsLayer(radii: [150, 100, 50])
+            }
+            .frame(maxWidth: .infinity, maxHeight: .infinity)
+
+            DisplayText(
+                t("other__connection_issues_title"),
+                accentColor: .yellowAccent
+            )
+
+            Spacer().frame(height: 8)
+
+            BodyMText(
+                t("other__connection_issues_explain"),
+                textColor: .white64
+            )
+            .frame(maxWidth: .infinity, alignment: .leading)
+
+            Spacer().frame(height: 24)
+
+            ActivityIndicator()
+                .frame(maxWidth: .infinity)
+
+            Spacer().frame(height: 16)
+        }
+        .navigationBarHidden(true)
+        .padding(.horizontal, 16)
+        .sheetBackground()
+        .frame(maxWidth: .infinity, maxHeight: .infinity)
+        .accessibilityIdentifier("ConnectionIssuesView")
+    }
+}
+
+// MARK: - Dashed Gradient Rings
+
+private struct DashedRingsLayer: View {
+    let radii: [CGFloat]
+
+    var body: some View {
+        Canvas { context, size in
+            let center = CGPoint(x: size.width * 0.25, y: size.height * 0.40)
+
+            for radius in radii {
+                let rect = CGRect(
+                    x: center.x - radius,
+                    y: center.y - radius,
+                    width: radius * 2,
+                    height: radius * 2
+                )
+
+                var path = Path()
+                path.addEllipse(in: rect)
+
+                let gradient = Gradient(colors: [.black, .yellowAccent])
+                let startPoint = CGPoint(x: rect.minX, y: rect.minY)
+                let endPoint = CGPoint(x: rect.maxX, y: rect.maxY)
+
+                context.stroke(
+                    path,
+                    with: .linearGradient(gradient, startPoint: startPoint, endPoint: endPoint),
+                    style: StrokeStyle(lineWidth: 1, dash: [8, 6])
+                )
+            }
+        }
+        .allowsHitTesting(false)
+    }
+}
+
+// MARK: - View Modifier
+
+private struct ConnectionIssuesOverlayModifier: ViewModifier {
+    let title: String
+    @EnvironmentObject private var network: NetworkMonitor
+
+    func body(content: Content) -> some View {
+        ZStack {
+            content
+
+            if !network.isConnected {
+                ConnectionIssuesView(title: title)
+                    .transition(.opacity)
+            }
+        }
+        .animation(.easeInOut(duration: 0.3), value: network.isConnected)
+    }
+}
+
+extension View {
+    /// Overlays a `ConnectionIssuesView` when the device is offline.
+    /// The underlying content remains mounted so navigation state and inputs are preserved.
+    func connectionIssuesOverlay(title: String) -> some View {
+        modifier(ConnectionIssuesOverlayModifier(title: title))
+    }
+}
+
+// MARK: - Preview
+
+#Preview {
+    ConnectionIssuesView(title: "Send Bitcoin")
+        .preferredColorScheme(.dark)
+}

Bitkit/Components/Header.swift

@@ -65,7 +65,6 @@ struct Header: View {
         .padding(.trailing, 10)
     }
 
-    @ViewBuilder
     private var profileButton: some View {
         Button {
             if pubkyProfile.isAuthenticated || pubkyProfile.cachedName != nil {

Bitkit/Components/ProfileEditFormView.swift

@@ -94,7 +94,6 @@ struct ProfileEditFormView<Avatar: View>: View {
 
     // MARK: - Pubky Key Section
 
-    @ViewBuilder
     private var pubkyKeySection: some View {
         VStack(spacing: 8) {
             CaptionMText(publicKeyLabel, textColor: .white64)
@@ -111,7 +110,6 @@ struct ProfileEditFormView<Avatar: View>: View {
 
     // MARK: - Bio Section
 
-    @ViewBuilder
     private var bioSection: some View {
         VStack(alignment: .leading, spacing: 8) {
             CaptionMText(t("profile__create_bio_label"), textColor: .white64)
@@ -129,7 +127,6 @@ struct ProfileEditFormView<Avatar: View>: View {
 
     // MARK: - Links Section
 
-    @ViewBuilder
     private var linksSection: some View {
         VStack(alignment: .leading, spacing: 8) {
             ForEach(links.indices, id: \.self) { index in
@@ -198,7 +195,6 @@ struct ProfileEditFormView<Avatar: View>: View {
 
     // MARK: - Delete Section
 
-    @ViewBuilder
     private func deleteSection(label: String, action: @escaping () -> Void) -> some View {
         VStack(alignment: .leading, spacing: 8) {
             CaptionMText(t("profile__edit_delete_section"), textColor: .white64)
@@ -221,7 +217,6 @@ struct ProfileEditFormView<Avatar: View>: View {
 
     // MARK: - Tags Section
 
-    @ViewBuilder
     private var tagsSection: some View {
         VStack(alignment: .leading, spacing: 8) {
             if !tags.isEmpty {
@@ -246,7 +241,6 @@ struct ProfileEditFormView<Avatar: View>: View {
         }
     }
 
-    @ViewBuilder
     private var footerBar: some View {
         VStack(spacing: 0) {
             LinearGradient(

Bitkit/Components/PubkyImage.swift

@@ -31,7 +31,6 @@
         }
     }
 
-    @ViewBuilder
     private var placeholder: some View {
         Circle()
             .fill(Color.gray5)
@@ -141,12 +140,12 @@
 
     /// Full lookup (memory + disk). Disk I/O runs on a dedicated queue to avoid blocking cooperative threads.
     func image(for uri: String) async -> UIImage? {
         lock.lock()
         if let memoryHit = memoryCache[uri] {
             lock.unlock()
             return memoryHit
         }
         lock.unlock()
 
         return await withCheckedContinuation { continuation in
             diskQueue.async { [self] in
@@ -179,9 +178,9 @@
     }
 
     func clear() async {
         lock.lock()
         memoryCache.removeAll()
         lock.unlock()
 
         await withCheckedContinuation { continuation in
             diskQueue.async { [diskDirectory] in

Bitkit/Components/SyncNodeView.swift

@@ -87,3 +87,35 @@ struct SyncNodeView: View {
         }
     }
 }
+
+// MARK: - View Modifier
+
+private struct SyncNodeOverlayModifier: ViewModifier {
+    @EnvironmentObject private var wallet: WalletViewModel
+
+    private var shouldShowSyncOverlay: Bool {
+        guard wallet.nodeLifecycleState == .running else { return true }
+        let hasAnyChannels = (wallet.channels?.isEmpty == false) || wallet.channelCount > 0
+        guard hasAnyChannels else { return false }
+        return !wallet.hasUsableChannels
+    }
+
+    func body(content: Content) -> some View {
+        ZStack {
+            content
+
+            if shouldShowSyncOverlay {
+                SyncNodeView()
+                    .transition(.opacity)
+            }
+        }
+        .animation(.easeInOut(duration: 0.3), value: shouldShowSyncOverlay)
+    }
+}
+
+extension View {
+    /// Overlays a `SyncNodeView` when the node is not running or channels aren't usable yet.
+    func syncNodeOverlay() -> some View {
+        modifier(SyncNodeOverlayModifier())
+    }
+}

Bitkit/MainNavView.swift

@@ -462,7 +462,6 @@ struct MainNavView: View {
             }
     }
 
-    @ViewBuilder
     private func missingPendingImportView(fallbackRoute: Route) -> some View {
         Color.customBlack
             .task {

Bitkit/Managers/ContactsManager.swift

@@ -63,7 +63,7 @@ enum ContactsManagerError: LocalizedError {
 
 // MARK: - PubkyContact
 
-struct PubkyContact: Identifiable, Hashable, Sendable {
+struct PubkyContact: Identifiable, Hashable {
     let id: String
     let publicKey: String
     let profile: PubkyProfile
@@ -656,13 +656,11 @@ class ContactsManager: ObservableObject {
         }
 
         let normalized = message.lowercased()
-        let indicatesMissingResource = normalized.contains("404")
+        return normalized.contains("404")
             || normalized.contains("no such file")
             || normalized.contains("does not exist")
             || normalized.contains("profile not found")
             || normalized.contains("profilenotfound")
             || (normalized.contains("fetch failed") && normalized.contains("not found"))
-
-        return indicatesMissingResource
     }
 }

Bitkit/Managers/NetworkMonitor.swift

@@ -25,8 +25,11 @@ final class NetworkMonitor: ObservableObject {
         // Set the pathUpdateHandler
         monitor.pathUpdateHandler = { [weak self] path in
             DispatchQueue.main.async {
+                let wasConnected = self?.isConnected
+                let isNowConnected = path.status == .satisfied
+
                 // Check if the device is connected to the internet
-                self?.isConnected = path.status == .satisfied
+                self?.isConnected = isNowConnected
 
                 // Check if the network is expensive (e.g. cellular data)
                 self?.isExpensive = path.isExpensive
@@ -36,6 +39,14 @@ final class NetworkMonitor: ObservableObject {
 
                 // Update the network path
                 self?.nwPath = path
+
+                if wasConnected != isNowConnected {
+                    let interfaceType = path.availableInterfaces.first?.type
+                    Logger
+                        .debug(
+                            "Network connectivity changed: \(isNowConnected ? "connected" : "disconnected") (interface: \(String(describing: interfaceType)), status: \(path.status))"
+                        )
+                }
             }
         }
 

Bitkit/Managers/PubkyProfileManager.swift

@@ -39,7 +39,7 @@
 
     // MARK: - Initialization & Session Restoration
 
-    private enum InitResult: Sendable {
+    private enum InitResult {
         case noSession
         case restored(publicKey: String)
         case restorationFailed
@@ -535,8 +535,8 @@
     nonisolated static func resolveRemoteProfile(publicKey: String) async throws -> PubkyProfile {
         try await resolveRemoteProfile(
             publicKey: publicKey,
             fetchBitkitProfile: fetchBitkitProfile,
             fetchPubkyProfile: fetchPubkyProfile
         )
     }
 

Bitkit/Models/PubkyProfile.swift

@@ -79,15 +79,15 @@ struct PubkyProfileData: Codable {
 
 // MARK: - PubkyProfileLink
 
-struct PubkyProfileLink: Identifiable, Sendable {
+struct PubkyProfileLink: Identifiable {
     let id = UUID()
     let label: String
     let url: String
 }
 
 // MARK: - PubkyProfile
 
-struct PubkyProfile: Sendable {
+struct PubkyProfile {
     let publicKey: String
     let name: String
     let bio: String

Bitkit/Resources/Localization/en.lproj/Localizable.strings

@@ -391,6 +391,8 @@
 "other__connection_reconnect_msg" = "Lost connection to Electrum, trying to reconnect...";
 "other__connection_back_title" = "Internet Connection Restored";
 "other__connection_back_msg" = "Bitkit successfully reconnected to the Internet.";
+"other__connection_issues_title" = "<accent>Connection</accent>\nIssues";
+"other__connection_issues_explain" = "It appears you're disconnected. Please check your connection. Bitkit will try to reconnect every few seconds.";
 "other__high_balance__nav_title" = "High Balance";
 "other__high_balance__title" = "High\n<accent>Balance</accent>";
 "other__high_balance__text" = "<accent>Your wallet balance exceeds $500.</accent>\nFor your security, consider moving some of your savings to an offline wallet.";

Bitkit/Views/Contacts/AddContactView.swift

@@ -44,7 +44,6 @@ struct AddContactView: View {
 
     @State private var dashedCircleRotation: Double = 0
 
-    @ViewBuilder
     private var loadingContent: some View {
         VStack(spacing: 0) {
             CaptionMText(truncatedPublicKey, textColor: .white64)
@@ -83,7 +82,6 @@ struct AddContactView: View {
         }
     }
 
-    @ViewBuilder
     private var retrievingAnimation: some View {
         ZStack {
             Image("ellipse-outer-green")
@@ -107,7 +105,6 @@ struct AddContactView: View {
 
     // MARK: - Result State
 
-    @ViewBuilder
     private func resultContent(_ profile: PubkyProfile) -> some View {
         VStack(spacing: 0) {
             ScrollView {
@@ -154,7 +151,6 @@ struct AddContactView: View {
 
     // MARK: - Error State
 
-    @ViewBuilder
     private var errorContent: some View {
         VStack(spacing: 16) {
             Spacer()