fix bar crashing on monitor add/remove

include/services/hyprland.hpp

@@ -17,7 +17,8 @@
 #define NUM_WORKSPACES 7
 
 class HyprlandService {
-    inline static HyprlandService *instance = nullptr;
+    static inline std::shared_ptr<HyprlandService> instance;
+
 
   public:
     struct Client {
@@ -49,9 +50,9 @@ class HyprlandService {
         std::shared_ptr<Bar> bar;
     };
 
-    static HyprlandService *getInstance() {
+    static std::shared_ptr<HyprlandService> getInstance() {
         if (!instance) {
-            instance = new HyprlandService();
+            instance = std::shared_ptr<HyprlandService>(new HyprlandService());
         }
         return instance;
     }
@@ -60,7 +61,12 @@ class HyprlandService {
 
     void addBar(std::shared_ptr<Bar> bar, std::string monitorName);
 
+    sigc::signal<void(std::string)> &signal_monitor_added() { return m_signal_monitor_added; }
+    sigc::signal<void(std::string)> &signal_monitor_removed() { return m_signal_monitor_removed; }
+
   private:
+    HyprlandService();
+    
     enum SocketEventType {
         WORKSPACE_CHANGED,
 
@@ -72,6 +78,7 @@ class HyprlandService {
 
         FOCUSED_MONITOR,
         MONITOR_REMOVED,
+        MONITOR_ADDED,
     };
 
     std::map<std::string, SocketEventType> socketEventTypeMap = {
@@ -83,7 +90,9 @@ class HyprlandService {
         {"urgent", URGENT},
         {"focusedmon", FOCUSED_MONITOR},
         {"monitorremoved", MONITOR_REMOVED},
+        {"monitoradded", MONITOR_ADDED},
     };
+    
     void onWorkspaceChanged(int workspaceId);
     void onFocusedMonitorChanged(std::string monitorData);
     void onOpenWindow(std::string windowData);
@@ -92,16 +101,15 @@ class HyprlandService {
     void onUrgent(std::string windowAddress);
     void onActiveWindowChanged(std::string windowAddress);
     void onMonitorRemoved(std::string monitorName);
-    // void onMonitorAdded(std::string monitorName);
+    void onMonitorAdded(std::string monitorName);
 
-    HyprlandService();
     std::map<std::string, std::shared_ptr<Monitor>> monitors;
     std::map<int, std::shared_ptr<Workspace>> workspaces;
     std::map<std::string, std::shared_ptr<Client>> clients;
 
     /// maybe refactor into reusable class
     std::string socketBuffer;
-    int socketFd;
+    int socketFd = -1;
     ///
 
     void bindHyprlandSocket();
@@ -112,4 +120,7 @@ class HyprlandService {
     void refreshIndicator(std::shared_ptr<Workspace> workspace);
 
     void handleSocketMessage(SocketHelper::SocketMessage message);
+
+    sigc::signal<void(std::string)> m_signal_monitor_added;
+    sigc::signal<void(std::string)> m_signal_monitor_removed;
 };