UI code reworked

Cargo.toml

@@ -27,13 +27,18 @@ trust-dns-resolver = "0.23"
 futures = "0.3"
 hostname = "0.3"
 rust-embed = "8.0"
-tray-icon = "0.19"
+tray-icon = { version = "0.19", optional = true }
-notify = "6.1"
+notify = { version = "6.1", optional = true }
-notify-debouncer-mini = "0.4"
+notify-debouncer-mini = { version = "0.4", optional = true }
 dirs = "5.0"
-eframe = "0.29"
+eframe = { version = "0.29", optional = true }
-egui = "0.29"
+egui = { version = "0.29", optional = true }
-winit = "0.30"
+winit = { version = "0.30", optional = true }
 env_logger = "0.11"
 urlencoding = "2.1"
 
+[features]
+default = ["gui"]
+gui = ["tray-icon", "eframe", "egui", "winit", "notify", "notify-debouncer-mini"]
+server = []
+

src/gui/mod.rs

@@ -1,28 +1,43 @@
 use log::info;
-use tray_icon::menu::MenuEvent;
 
 // Modules
 mod api;
 mod admin;
 mod common;
+
+#[cfg(feature = "gui")]
 mod settings;
+#[cfg(feature = "gui")]
 mod tray;
 
 // Re-exports for backward compatibility and external usage
+#[cfg(feature = "gui")]
 pub use settings::run_settings_window;
+#[cfg(feature = "gui")]
 pub use tray::run_tray_app;
 
 // User events for GUI communication
+#[cfg(feature = "gui")]
 #[derive(Debug)]
 pub enum UserEvent {
     TrayIconEvent,
-    MenuEvent(MenuEvent),
+    MenuEvent(tray_icon::menu::MenuEvent),
     ConfigFileChanged,
     UpdateMenu,
 }
 
 /// Run GUI application in tray mode
+#[cfg(feature = "gui")]
 pub async fn run_gui() -> std::io::Result<()> {
     info!("Starting KHM tray application");
     run_tray_app().await
 }
+
+/// Stub function when GUI is disabled
+#[cfg(not(feature = "gui"))]
+pub async fn run_gui() -> std::io::Result<()> {
+    return Err(std::io::Error::new(
+        std::io::ErrorKind::Unsupported,
+        "GUI features not compiled. Install system dependencies and rebuild with --features gui"
+    ));
+}

src/gui/tray/app.rs

@@ -1,5 +1,8 @@
 use log::{error, info};
+
+#[cfg(feature = "gui")]
 use notify::RecursiveMode;
+#[cfg(feature = "gui")]
 use notify_debouncer_mini::{new_debouncer, DebounceEventResult};
 use std::sync::{Arc, Mutex};
 use std::time::Duration;
@@ -24,6 +27,7 @@ pub struct TrayApplication {
     menu_ids: Option<TrayMenuIds>,
     settings: Arc<Mutex<KhmSettings>>,
     sync_status: Arc<Mutex<SyncStatus>>,
+    #[cfg(feature = "gui")]
     _debouncer: Option<notify_debouncer_mini::Debouncer<notify::RecommendedWatcher>>,
     proxy: EventLoopProxy<crate::gui::UserEvent>,
     auto_sync_handle: Option<std::thread::JoinHandle<()>>,
@@ -36,12 +40,14 @@ impl TrayApplication {
             menu_ids: None,
             settings: Arc::new(Mutex::new(load_settings())),
             sync_status: Arc::new(Mutex::new(SyncStatus::default())),
+            #[cfg(feature = "gui")]
             _debouncer: None,
             proxy,
             auto_sync_handle: None,
         }
     }
     
+    #[cfg(feature = "gui")]
     fn setup_file_watcher(&mut self) {
         let config_path = get_config_path();
         let (tx, rx) = std::sync::mpsc::channel::<DebounceEventResult>();

src/main.rs

@@ -154,9 +154,20 @@ async fn main() -> std::io::Result<()> {
 
     // Settings UI mode - just show settings window and exit
     if args.settings_ui {
-        info!("Running settings UI window");
+        #[cfg(feature = "gui")]
-        gui::run_settings_window();
+        {
-        return Ok(());
+            info!("Running settings UI window");
+            gui::run_settings_window();
+            return Ok(());
+        }
+        #[cfg(not(feature = "gui"))]
+        {
+            error!("GUI features not compiled. Install system dependencies and rebuild with --features gui");
+            return Err(std::io::Error::new(
+                std::io::ErrorKind::Unsupported,
+                "GUI features not compiled"
+            ));
+        }
     }
 
     // GUI mode has priority