persistance

flutter/lib/pages/account/login.dart

@@ -1,8 +1,13 @@
 import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
 import 'package:simplecloudnotifier/api/api_client.dart';
+import 'package:simplecloudnotifier/models/key_token_auth.dart';
+import 'package:simplecloudnotifier/state/user_account.dart';
 
 class AccountLoginPage extends StatefulWidget {
-  const AccountLoginPage({super.key});
+  final void Function()? onLogin;
+
+  const AccountLoginPage({super.key, this.onLogin});
 
   @override
   State<AccountLoginPage> createState() => _AccountLoginPageState();
@@ -66,20 +71,31 @@ class _AccountLoginPageState extends State<AccountLoginPage> {
 
   void _login() async {
     final msgr = ScaffoldMessenger.of(context);
+    final prov = Provider.of<UserAccount>(context, listen: false);
 
-    final verified = await APIClient.verifyToken(_ctrlUserID.text, _ctrlToken.text);
-    if (verified) {
-      msgr.showSnackBar(
-        const SnackBar(
-          content: Text('Data ok'),
-        ),
-      );
-    } else {
-      msgr.showSnackBar(
-        const SnackBar(
-          content: Text('Failed to verify token'),
-        ),
-      );
+    try {
+      final uid = _ctrlUserID.text;
+      final tok = _ctrlToken.text;
+
+      final verified = await APIClient.verifyToken(uid, tok);
+      if (verified) {
+        msgr.showSnackBar(
+          const SnackBar(
+            content: Text('Data ok'), //TODO toast
+          ),
+        );
+        prov.setToken(KeyTokenAuth(userId: uid, token: tok));
+        await prov.save();
+        widget.onLogin?.call();
+      } else {
+        msgr.showSnackBar(
+          const SnackBar(
+            content: Text('Failed to verify token'), //TODO toast
+          ),
+        );
+      }
+    } catch (e) {
+      //TODO
     }
   }
 }

flutter/lib/pages/account/root.dart

@@ -16,21 +16,22 @@ enum _SubPage { chooseAuth, login, main }
 
 class _AccountRootPageState extends State<AccountRootPage> {
   late _SubPage _page;
+  late UserAccount userAcc;
 
   @override
   void initState() {
     super.initState();
 
-    var prov = Provider.of<UserAccount>(context, listen: false);
+    userAcc = Provider.of<UserAccount>(context, listen: false);
 
-    _page = (prov.auth != null) ? _SubPage.main : _SubPage.chooseAuth;
+    _page = (userAcc.auth != null) ? _SubPage.main : _SubPage.chooseAuth;
 
-    prov.addListener(_onAuthStateChanged);
+    userAcc.addListener(_onAuthStateChanged);
   }
 
   @override
   void dispose() {
-    Provider.of<UserAccount>(context, listen: false).removeListener(_onAuthStateChanged);
+    userAcc.removeListener(_onAuthStateChanged);
     super.dispose();
   }
 
@@ -48,10 +49,10 @@ class _AccountRootPageState extends State<AccountRootPage> {
       builder: (context, acc, child) {
         switch (_page) {
           case _SubPage.main:
-            return const Center(
+            return Center(
               child: Text(
-                'Logged In',
-                style: TextStyle(fontSize: 24),
+                'Logged In: ${acc.auth?.userId}',
+                style: const TextStyle(fontSize: 24),
               ),
             );
           case _SubPage.chooseAuth:
@@ -64,7 +65,11 @@ class _AccountRootPageState extends State<AccountRootPage> {
               }),
             );
           case _SubPage.login:
-            return const AccountLoginPage();
+            return AccountLoginPage(
+              onLogin: () => setState(() {
+                _page = _SubPage.main;
+              }),
+            );
         }
       },
     );

flutter/lib/state/user_account.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/foundation.dart';
+import 'package:shared_preferences/shared_preferences.dart';
 
 import '../models/key_token_auth.dart';
 import '../models/user.dart';
@@ -10,9 +11,19 @@ class UserAccount extends ChangeNotifier {
   KeyTokenAuth? _auth;
   KeyTokenAuth? get auth => _auth;
 
+  UserAccount() {
+    load();
+  }
+
   void setToken(KeyTokenAuth auth) {
     _auth = auth;
-    _user = user;
+    _user = null;
+    notifyListeners();
+  }
+
+  void clearToken() {
+    _auth = null;
+    _user = null;
     notifyListeners();
   }
 
@@ -25,4 +36,28 @@ class UserAccount extends ChangeNotifier {
     _user = null;
     notifyListeners();
   }
+
+  load() async {
+    final prefs = await SharedPreferences.getInstance();
+
+    final uid = prefs.getString('auth.userid');
+    final tok = prefs.getString('auth.token');
+
+    if (uid != null && tok != null) {
+      setToken(KeyTokenAuth(userId: uid, token: tok));
+    } else {
+      clearToken();
+    }
+  }
+
+  save() async {
+    final prefs = await SharedPreferences.getInstance();
+    if (_auth == null) {
+      await prefs.remove('auth.userid');
+      await prefs.remove('auth.token');
+    } else {
+      await prefs.setString('auth.userid', _auth!.userId);
+      await prefs.setString('auth.token', _auth!.token);
+    }
+  }
 }