move error dialog to trait

src-tauri/src/main.rs

@@ -3,7 +3,6 @@
     windows_subsystem = "windows"
 )]
 use std::error::Error;
-use std::sync::mpsc::channel;
 
 use once_cell::sync::OnceCell;
 use sqlx::{
@@ -17,10 +16,6 @@ use tauri::{
     Manager,
     async_runtime as rt,
 };
-use tauri::api::dialog::{
-    MessageDialogBuilder, 
-    MessageDialogKind,
-};
 
 mod config;
 mod errors;
@@ -68,6 +63,10 @@ async fn setup(app: &mut App) -> Result<(), Box<dyn Error>> {
 
 fn run() -> tauri::Result<()> {
     tauri::Builder::default()
+        .plugin(tauri_plugin_single_instance::init(|app, _argv, _cwd| {
+            app.get_window("main")
+                .map(|w| w.show().error_popup("Failed to show main window"));
+        }))
         .system_tray(tray::create())
         .on_system_tray_event(tray::handle_event)
         .invoke_handler(tauri::generate_handler![
@@ -96,16 +95,7 @@ fn run() -> tauri::Result<()> {
 
 
 fn main() {
-    if let Err(e) = run() {
-        let (tx, rx) = channel();
-        MessageDialogBuilder::new(
-            "Creddy failed to start",
-            format!("{e}")
-        )
-            .kind(MessageDialogKind::Error)
-            .show(move |_| tx.send(true).unwrap());
-        rx.recv().unwrap();
-    }
+    run().error_popup("Creddy failed to start");
 }