Reset app option

lib/accounts.dart

@@ -142,7 +142,8 @@ abstract class _ActiveAccount with Store {
     final prefs = await SharedPreferences.getInstance();
     final coin = prefs.getInt('coin') ?? 0;
     var id = prefs.getInt('account') ?? 0;
-    setActiveAccount(coin, id);
+    if (WarpApi.checkAccount(coin, id))
+      setActiveAccount(coin, id);
     checkAndUpdate();
   }
 

lib/main.dart

@@ -388,14 +388,17 @@ class ZWalletAppState extends State<ZWalletApp> {
         WarpApi.mempoolRun(unconfirmedBalancePort.sendPort.nativePort);
 
         final c = coins.first;
-        if (!isMobile() && File(c.dbFullPath).existsSync()) {
-          if (!WarpApi.decryptDb(c.dbFullPath, '')) {
-            final passwd = await getDbPasswd(context, c.dbFullPath);
-            if (passwd != null) {
-              settings.dbPasswd = passwd;
-            }
+        do {
+          if (isMobile()) break; // db encryption is only for desktop
+          if (!File(c.dbFullPath).existsSync()) break; // fresh install
+          if (WarpApi.decryptDb(c.dbFullPath, '')) break; // not encrypted
+
+          final reset = await getDbPasswd(context, c.dbFullPath);
+          if (reset) { // user didn't input the passwd and wants to reset
+            await clearApp(context);
           }
-        }
+          else break;
+        } while(true);
 
         for (var c in coins) {
           _setProgress(0.2 * (c.coin+1), 'Initializing ${c.ticker}');
@@ -977,8 +980,9 @@ void resetApp() {
   WarpApi.truncateData();
 }
 
-Future<String?> getDbPasswd(BuildContext context, String dbPath) async {
+Future<bool> getDbPasswd(BuildContext context, String dbPath) async {
   final s = S.of(context);
+  final navigator = navigatorKey.currentState!;
   final passwdController = TextEditingController();
   final checkPasswd = (String? v) {
     final valid = WarpApi.decryptDb(dbPath, passwdController.text);
@@ -987,7 +991,7 @@ Future<String?> getDbPasswd(BuildContext context, String dbPath) async {
   };
   final formKey = GlobalKey<FormState>();
 
-  final confirmed = await showDialog<bool>(
+  final reset = await showDialog<bool>(
       context: context,
       barrierColor: Colors.black,
       barrierDismissible: false,
@@ -1000,14 +1004,28 @@ Future<String?> getDbPasswd(BuildContext context, String dbPath) async {
                   decoration: InputDecoration(labelText: s.databasePassword),
                   controller: passwdController,
                   validator: checkPasswd,
+                  onSaved: (v) { settings.dbPasswd = v!; },
                   obscureText: true,
                 ),
               ])))),
-          actions: confirmButtons(context, () {
-            if (formKey.currentState!.validate())
-              Navigator.of(context).pop(true);
-          }, okLabel: s.ok),
-        );
+          actions:
+            <ElevatedButton>[
+            ElevatedButton.icon(
+              icon: Icon(Icons.lock_reset),
+              label: Text(s.reset),
+              onPressed: () => navigator.pop(true)),
+            ElevatedButton.icon(
+            icon: Icon(Icons.done),
+            label: Text(s.ok),
+            onPressed: () {
+              final fs = formKey.currentState!;
+              if (fs.validate()) {
+                fs.save();
+                navigator.pop(false);
+              }
+            })
+        ]);
       }) ?? false;
-  return confirmed ? passwdController.text : null;
+
+  return reset;
 }

lib/reset.dart

@@ -5,6 +5,7 @@ import 'package:flutter_mobx/flutter_mobx.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 import 'package:warp_api/types.dart';
 import 'package:warp_api/warp_api.dart';
+import 'coin/coins.dart';
 import 'generated/l10n.dart';
 import 'main.dart';
 import 'package:path/path.dart' as p;
@@ -230,3 +231,16 @@ Future<void> showRestartMessage() async {
     )
   );
 }
+
+Future<void> clearApp(BuildContext context) async {
+  final reset = await showDialog<bool>(context: context, barrierDismissible: false, builder:
+    (context) => AlertDialog(
+      title: Text('Reset Database'),
+      content: Text('Are you sure you want to DELETE ALL your data?'),
+      actions: confirmButtons(context, () => Navigator.of(context).pop(true)),
+  )) ?? false;
+  if (reset) {
+    final c = coins.first;
+    File(c.dbDir).deleteSync(recursive: true);
+  }
+}

packages/warp_api_ffi/lib/warp_api.dart

@@ -190,6 +190,10 @@ class WarpApi {
     return unwrapResultString(address);
   }
 
+  static bool checkAccount(int coin, int account) {
+    return account != 0 && warp_api_lib.check_account(coin, account) != 0;
+  }
+
   static void setActiveAccount(int coin, int account) {
     warp_api_lib.set_active(coin);
     warp_api_lib.set_active_account(coin, account);

packages/warp_api_ffi/lib/warp_api_generated.dart

@@ -761,6 +761,21 @@ class NativeLibrary {
   late final _dart_truncate_sync_data _truncate_sync_data =
       _truncate_sync_data_ptr.asFunction<_dart_truncate_sync_data>();
 
+  int check_account(
+    int coin,
+    int account,
+  ) {
+    return _check_account(
+      coin,
+      account,
+    );
+  }
+
+  late final _check_account_ptr =
+      _lookup<ffi.NativeFunction<_c_check_account>>('check_account');
+  late final _dart_check_account _check_account =
+      _check_account_ptr.asFunction<_dart_check_account>();
+
   void delete_account(
     int coin,
     int account,
@@ -2008,6 +2023,16 @@ typedef _c_truncate_sync_data = ffi.Void Function();
 
 typedef _dart_truncate_sync_data = void Function();
 
+typedef _c_check_account = ffi.Int8 Function(
+  ffi.Uint8 coin,
+  ffi.Uint32 account,
+);
+
+typedef _dart_check_account = int Function(
+  int coin,
+  int account,
+);
+
 typedef _c_delete_account = ffi.Void Function(
   ffi.Uint8 coin,
   ffi.Uint32 account,

pubspec.yaml

@@ -15,7 +15,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 # In iOS, build-name is used as CFBundleShortVersionString while build-number used as CFBundleVersion.
 # Read more about iOS versioning at
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
-version: 1.3.5+397
+version: 1.3.5+398
 
 environment:
   sdk: ">=2.12.0 <3.0.0"