display setup errors

src-tauri/src/config.rs

@@ -90,6 +90,7 @@ pub fn set_auto_launch(is_configured: bool) -> Result<(), SetupError> {
 
 
 pub fn get_or_create_db_path() -> Result<PathBuf, DataDirError> {
+    // debug_assertions doesn't always mean we are running in dev
     if cfg!(debug_assertions) && std::env::var("HOME").is_ok() {
         return Ok(PathBuf::from("./creddy.db"));
     }

src-tauri/src/main.rs

@@ -3,7 +3,9 @@
     windows_subsystem = "windows"
 )]
 use std::error::Error;
+use std::sync::mpsc::channel;
 
+use once_cell::sync::OnceCell;
 use sqlx::{
     SqlitePool,
     sqlite::SqlitePoolOptions,
@@ -15,7 +17,10 @@ use tauri::{
     Manager,
     async_runtime as rt,
 };
-use once_cell::sync::OnceCell;
+use tauri::api::dialog::{
+    MessageDialogBuilder, 
+    MessageDialogKind,
+};
 
 mod config;
 mod errors;
@@ -61,7 +66,7 @@ async fn setup(app: &mut App) -> Result<(), Box<dyn Error>> {
 }
 
 
-fn main() {
+fn run() -> tauri::Result<()> {
     tauri::Builder::default()
         .system_tray(tray::create())
         .on_system_tray_event(tray::handle_event)
@@ -74,8 +79,7 @@ fn main() {
             ipc::save_config,
         ])
         .setup(|app| rt::block_on(setup(app)))
-        .build(tauri::generate_context!())
-        .expect("error while running tauri application")
+        .build(tauri::generate_context!())?
         .run(|app, run_event| match run_event {
             tauri::RunEvent::WindowEvent { label, event, .. } => match event {
                 tauri::WindowEvent::CloseRequested { api, .. } => {
@@ -85,7 +89,23 @@ fn main() {
                 _ => ()
             }
             _ => ()
-        })
+        });
+
+    Ok(())
+}
+
+
+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();
+    }
 }