Add NWPathMonitor reconnect and dynamic menu bar icon

- Reconnect immediately when network becomes available (NWPathMonitor)
- Menu bar icon switches to hollow bell when any server is disconnected
- Track failed connection attempts to show disconnected state even on first failure

Author: laurentftech

Sources/NtfyClient.swift

@@ -1,4 +1,5 @@
 import Foundation
+import Network
 
 @preconcurrency protocol NtfyClientDelegate: AnyObject {
     func ntfyClient(_ client: NtfyClient, didReceiveMessage message: NtfyMessage)
@@ -107,6 +108,10 @@ final class NtfyClient: NSObject, @unchecked Sendable {
     private var watchdogTimer: Timer?
     private var lastDataReceived: Date = .distantPast
 
+    // Network path monitor: reconnect immediately when network becomes available
+    private var pathMonitor: NWPathMonitor?
+    private var isPathSatisfied = true  // Assume connected initially
+
     init(serverURL: String, topics: [String], authToken: String? = nil, fetchMissed: Bool = false, watchdogInterval: TimeInterval = 120.0, baseReconnectDelay: TimeInterval = 2.0, urlSessionConfiguration: URLSessionConfiguration? = nil) {
         self.serverURL = serverURL
         self.topics = topics
@@ -182,6 +187,8 @@ final class NtfyClient: NSObject, @unchecked Sendable {
             request.setValue("Bearer \(token)", forHTTPHeaderField: "Authorization")
         }
 
+        startPathMonitor()
+
         buffer.removeAll()
         dataTask = session.dataTask(with: request)
         dataTask?.resume()
@@ -194,6 +201,7 @@ final class NtfyClient: NSObject, @unchecked Sendable {
         reconnectTimer?.invalidate()
         reconnectTimer = nil
         stopWatchdog()
+        stopPathMonitor()
         dataTask?.cancel()
         dataTask = nil
         isConnecting = false
@@ -221,6 +229,28 @@ final class NtfyClient: NSObject, @unchecked Sendable {
         watchdogTimer = nil
     }
 
+    private func startPathMonitor() {
+        guard pathMonitor == nil else { return }
+        let monitor = NWPathMonitor()
+        pathMonitor = monitor
+        monitor.pathUpdateHandler = { [weak self] path in
+            guard let self else { return }
+            let satisfied = path.status == .satisfied
+            if satisfied && !self.isPathSatisfied {
+                Log.info("Network became available, reconnecting...")
+                self.reconnect()
+            }
+            self.isPathSatisfied = satisfied
+        }
+        monitor.start(queue: .global(qos: .background))
+    }
+
+    private func stopPathMonitor() {
+        pathMonitor?.cancel()
+        pathMonitor = nil
+        isPathSatisfied = true
+    }
+
     func updateAuthToken(_ token: String?) {
         self.authToken = token
         if dataTask != nil {

Sources/StatusBarController.swift

@@ -27,11 +27,12 @@ class StatusBarController: NSObject {
         let topics: [String]
         var isConnected: Bool
         var hasEverConnected: Bool  // Track if we've ever successfully connected
+        var hasFailedAttempt: Bool = false  // Track if at least one attempt ended in failure
 
         var state: ConnectionState {
             if isConnected {
                 return .connected
-            } else if hasEverConnected {
+            } else if hasEverConnected || hasFailedAttempt {
                 return .disconnected
             } else {
                 return .connecting
@@ -318,6 +319,8 @@ class StatusBarController: NSObject {
             status.isConnected = connected
             if connected {
                 status.hasEverConnected = true
+            } else {
+                status.hasFailedAttempt = true
             }
             serverStatuses[serverUrl] = status
             refreshServersSubmenu()
@@ -366,13 +369,23 @@ class StatusBarController: NSObject {
         refreshServersSubmenu()
     }
 
+    private func updateMenuBarIcon(hasDisconnected: Bool) {
+        let symbolName = hasDisconnected ? "bell" : "bell.fill"
+        if let image = NSImage(systemSymbolName: symbolName, accessibilityDescription: "ntfy") {
+            image.isTemplate = true
+            statusItem?.button?.image = image
+        }
+    }
+
     private func refreshMainStatus() {
         let totalServers = serverStatuses.count
         let connectedServers = serverStatuses.values.filter { $0.state == .connected }.count
         let connectingServers = serverStatuses.values.filter { $0.state == .connecting }.count
         let disconnectedServers = serverStatuses.values.filter { $0.state == .disconnected }.count
         let totalTopics = serverStatuses.values.flatMap { $0.topics }.count
 
+        updateMenuBarIcon(hasDisconnected: disconnectedServers > 0)
+
         let attributedTitle = NSMutableAttributedString()
         let textAttrs: [NSAttributedString.Key: Any] = [
             .font: NSFont.systemFont(ofSize: 13)