fixes

Author: gavasc

app.go

@@ -153,6 +153,35 @@ func (a *App) SaveBackupConfig(cfg BackupConfig) error {
 	return a.bm.SaveConfig(cfg)
 }
 
+// AutoRestoreIfNeeded checks on startup whether the local database is empty
+// and a backup is configured. If so, it fetches and imports the remote backup
+// automatically. Returns true if a restore was performed.
+//
+// Errors from fetching (e.g. remote not yet initialised) are treated as
+// non-fatal — the app just starts with an empty DB as usual.
+func (a *App) AutoRestoreIfNeeded() (bool, error) {
+	if a.bm == nil {
+		return false, nil
+	}
+	cfg, err := a.bm.LoadConfig()
+	if err != nil || cfg.Repo == "" {
+		return false, nil
+	}
+	empty, err := a.db.IsEmpty()
+	if err != nil || !empty {
+		return false, err
+	}
+	jsonData, err := a.bm.FetchBackup()
+	if err != nil {
+		// Remote may not have a backup yet — not an error the user needs to see.
+		return false, nil
+	}
+	if err := a.db.ImportJSON(jsonData); err != nil {
+		return false, err
+	}
+	return true, nil
+}
+
 func (a *App) BackupNow() error {
 	if a.bm == nil {
 		return fmt.Errorf("backup manager unavailable")

db.go

@@ -88,6 +88,22 @@ func NewDB(path string) (*DB, error) {
 
 func (db *DB) Close() { db.conn.Close() }
 
+// IsEmpty returns true when the database has no accounts and no transactions,
+// i.e. the app has never been used on this machine.
+func (db *DB) IsEmpty() (bool, error) {
+	var n int
+	if err := db.conn.QueryRow("SELECT COUNT(*) FROM accounts").Scan(&n); err != nil {
+		return false, err
+	}
+	if n > 0 {
+		return false, nil
+	}
+	if err := db.conn.QueryRow("SELECT COUNT(*) FROM transactions").Scan(&n); err != nil {
+		return false, err
+	}
+	return n == 0, nil
+}
+
 func (db *DB) init() error {
 	_, err := db.conn.Exec(`
 		CREATE TABLE IF NOT EXISTS transactions (

frontend/src/routes/+page.svelte

@@ -23,6 +23,7 @@
         SaveBackupConfig,
         BackupNow,
         RestoreFromBackup,
+        AutoRestoreIfNeeded,
     } from "../../wailsjs/go/main/App";
 
     interface Transaction {
@@ -858,16 +859,28 @@
     });
 
     // ── Init ──────────────────────────────────────────────────
-    onMount(() => {
+    onMount(async () => {
         const today = new Date().toISOString().split("T")[0];
         eDate = today;
         rDate = today;
         tfDate = today;
+
+        // Load backup config first so AutoRestoreIfNeeded can use it.
+        await loadBackupConfig();
+        try {
+            const restored = await AutoRestoreIfNeeded();
+            if (restored) {
+                backupStatus = "auto-restored from backup";
+            }
+        } catch (e) {
+            console.error("auto-restore on startup failed:", e);
+        }
+
+        // Load data — if a restore just happened this will see the restored DB.
         setPeriod("3m");
         loadAccounts();
         loadTransfers();
         loadInstallments();
-        loadBackupConfig();
     });
 </script>
 

frontend/wailsjs/go/main/App.d.ts

@@ -2,6 +2,8 @@
 // This file is automatically generated. DO NOT EDIT
 import {main} from '../models';
 
+export function AutoRestoreIfNeeded():Promise<boolean>;
+
 export function AddAccount(arg1:main.Account):Promise<number>;
 
 export function AddInstallment(arg1:main.Installment):Promise<number>;

frontend/wailsjs/go/main/App.js

@@ -2,6 +2,10 @@
 // Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
 // This file is automatically generated. DO NOT EDIT
 
+export function AutoRestoreIfNeeded() {
+  return window['go']['main']['App']['AutoRestoreIfNeeded']();
+}
+
 export function AddAccount(arg1) {
   return window['go']['main']['App']['AddAccount'](arg1);
 }