Prevent duplicate desktop model sessions and record calibration evidence

apps/desktop/src-tauri/src/main.rs

@@ -6,6 +6,7 @@ compile_error!("Release desktop builds require --features custom-protocol to emb
 mod ai_commands;
 mod appearance;
 mod data_directory;
+mod instance;
 mod model_download;
 mod semantic_commands;
 mod settings;
@@ -545,16 +546,22 @@ fn start_folder_watching(
 }
 
 fn main() {
+    let mut context = tauri::generate_context!();
+    context.config_mut().identifier = instance::profile_identifier(
+        &context.config().identifier,
+        std::env::var_os("SEARCHI_DATA_DIR"),
+    )
+    .expect("searchi profile identity could not be resolved");
     tauri::Builder::default()
+        // Detect duplicates before any model, database, watcher or other plugin starts.
+        .plugin(tauri_plugin_single_instance::init(|app, _args, _cwd| {
+            instance::focus_search(app);
+        }))
         .plugin(tauri_plugin_dialog::init())
         .plugin(tauri_plugin_opener::init())
         .plugin(tauri_plugin_global_shortcut::Builder::new().with_handler(|app, _, event| {
             if event.state == ShortcutState::Pressed {
-                if let Some(window) = app.get_webview_window("main") {
-                    let result = window.show().and_then(|_| window.unminimize()).and_then(|_| window.set_focus());
-                    if let Err(error) = result { eprintln!("Could not focus Searchi: {error}"); }
-                    let _ = window.emit("focus-search", ());
-                }
+                instance::focus_search(app);
             }
         }).build())
         .setup(|app| {
@@ -687,7 +694,7 @@ fn main() {
             hybrid_search,
             hybrid_search_measured
         ])
-        .build(tauri::generate_context!())
+        .build(context)
         .expect("Searchi desktop could not start")
         .run(|app, event| {
             if matches!(event, tauri::RunEvent::Exit) {