feat(auth): server endpoint in bottom sheet on login

lib/backend/api.dart

@@ -70,7 +70,8 @@ class Api {
     });
 
     try {
-      await _connection.connect(ServerConfig.host, ServerConfig.port);
+      final endpoint = await ServerConfig.loadEndpoint();
+      await _connection.connect(endpoint.host, endpoint.port);
     } catch (e) {
       logger.e('Не удалось подключиться: $e');
       _cleanup();

lib/core/config/config.dart

@@ -1,7 +1,25 @@
+import 'package:shared_preferences/shared_preferences.dart';
+
 abstract class ServerConfig {
-  static const String host = 'api.oneme.ru';
+  static const String defaultHost = 'api.oneme.ru';
-  static const int port = 443;
+  static const int defaultPort = 443;
+  static const String prefHostKey = 'server_host_override';
+  static const String prefPortKey = 'server_port_override';
   static const Duration pingInterval = Duration(seconds: 30);
   static const Duration requestTimeout = Duration(seconds: 30);
   static const int maxReconnectAttempts = 50;
+
+  static Future<({String host, int port})> loadEndpoint() async {
+    final prefs = await SharedPreferences.getInstance();
+    final rawHost = prefs.getString(prefHostKey);
+    final rawPort = prefs.getInt(prefPortKey);
+    final host = (rawHost != null && rawHost.trim().isNotEmpty)
+        ? rawHost.trim()
+        : defaultHost;
+    var port = defaultPort;
+    if (rawPort != null && rawPort >= 1 && rawPort <= 65535) {
+      port = rawPort;
+    }
+    return (host: host, port: port);
+  }
 }

lib/frontend/screens/auth/login_screen.dart

@@ -10,6 +10,7 @@ import 'package:komet/l10n/terms_of_service.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 import 'code_confirmation_screen.dart';
 import 'select_country_screen.dart';
+import 'server_settings_sheet.dart';
 import 'spoff_redacted_screen.dart';
 import '../../widgets/custom_notification.dart';
 import '../../../main.dart';
@@ -448,6 +449,23 @@ class _LoginScreenState extends State<LoginScreen> {
     _showPhoneConfirmationDialog(_phoneController.text);
   }
 
+  void _showServerSettingsSheet(BuildContext context) {
+    final cs = Theme.of(context).colorScheme;
+    showModalBottomSheet<void>(
+      context: context,
+      isScrollControlled: true,
+      backgroundColor: cs.surfaceContainerHigh,
+      shape: const RoundedRectangleBorder(
+        borderRadius: BorderRadius.vertical(top: Radius.circular(24)),
+      ),
+      builder: (_) {
+        return SafeArea(
+          child: const ServerSettingsSheet(),
+        );
+      },
+    );
+  }
+
   void _showSecurityOptions(BuildContext context) {
     final cs = Theme.of(context).colorScheme;
     final l10n = AppLocalizations.of(context)!;
@@ -457,7 +475,7 @@ class _LoginScreenState extends State<LoginScreen> {
       shape: const RoundedRectangleBorder(
         borderRadius: BorderRadius.vertical(top: Radius.circular(24)),
       ),
-      builder: (context) {
+      builder: (sheetContext) {
         return SafeArea(
           child: Padding(
             padding: const EdgeInsets.symmetric(
@@ -478,7 +496,7 @@ class _LoginScreenState extends State<LoginScreen> {
                     ),
                   ),
                   onTap: () {
-                    Navigator.pop(context);
+                    Navigator.pop(sheetContext);
                     Navigator.push(
                       context,
                       MaterialPageRoute(
@@ -498,7 +516,22 @@ class _LoginScreenState extends State<LoginScreen> {
                     ),
                   ),
                   onTap: () {
-                    Navigator.pop(context);
+                    Navigator.pop(sheetContext);
+                  },
+                ),
+                ListTile(
+                  leading: Icon(Symbols.dns, color: cs.onSurface),
+                  title: Text(
+                    l10n.loginChangeServer,
+                    style: GoogleFonts.inter(
+                      color: cs.onSurface,
+                      fontSize: 16,
+                      fontWeight: FontWeight.w500,
+                    ),
+                  ),
+                  onTap: () {
+                    Navigator.pop(sheetContext);
+                    _showServerSettingsSheet(context);
                   },
                 ),
               ],

lib/frontend/screens/auth/server_settings_sheet.dart

@@ -0,0 +1,215 @@
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:google_fonts/google_fonts.dart';
+import 'package:komet/backend/api.dart';
+import 'package:komet/core/config/config.dart';
+import 'package:komet/l10n/app_localizations.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+import '../../../main.dart';
+import '../../widgets/custom_notification.dart';
+
+class ServerSettingsSheet extends StatefulWidget {
+  const ServerSettingsSheet({super.key});
+
+  @override
+  State<ServerSettingsSheet> createState() => _ServerSettingsSheetState();
+}
+
+class _ServerSettingsSheetState extends State<ServerSettingsSheet> {
+  final TextEditingController _hostController = TextEditingController(
+    text: ServerConfig.defaultHost,
+  );
+  final TextEditingController _portController = TextEditingController(
+    text: '${ServerConfig.defaultPort}',
+  );
+  bool _busy = false;
+
+  @override
+  void initState() {
+    super.initState();
+    _load();
+  }
+
+  Future<void> _load() async {
+    final endpoint = await ServerConfig.loadEndpoint();
+    if (!mounted) return;
+    setState(() {
+      _hostController.text = endpoint.host;
+      _portController.text = '${endpoint.port}';
+    });
+  }
+
+  Future<void> _apply(AppLocalizations l10n) async {
+    final host = _hostController.text.trim();
+    final port = int.tryParse(_portController.text.trim());
+    if (host.isEmpty || port == null || port < 1 || port > 65535) {
+      showCustomNotification(context, l10n.serverInvalidHostOrPort);
+      return;
+    }
+    setState(() => _busy = true);
+    try {
+      final prefs = await SharedPreferences.getInstance();
+      await prefs.setString(ServerConfig.prefHostKey, host);
+      await prefs.setInt(ServerConfig.prefPortKey, port);
+      await api.disconnect();
+      await api.connect();
+      if (!mounted) return;
+      if (api.state == SessionState.online) {
+        showCustomNotification(context, l10n.serverSettingsSaved);
+      } else {
+        showCustomNotification(context, l10n.serverReconnectFailed);
+      }
+    } finally {
+      if (mounted) setState(() => _busy = false);
+    }
+  }
+
+  Future<void> _resetToDefault(AppLocalizations l10n) async {
+    setState(() => _busy = true);
+    try {
+      final prefs = await SharedPreferences.getInstance();
+      await prefs.remove(ServerConfig.prefHostKey);
+      await prefs.remove(ServerConfig.prefPortKey);
+      _hostController.text = ServerConfig.defaultHost;
+      _portController.text = '${ServerConfig.defaultPort}';
+      await api.disconnect();
+      await api.connect();
+      if (!mounted) return;
+      if (api.state == SessionState.online) {
+        showCustomNotification(context, l10n.serverSettingsSaved);
+      } else {
+        showCustomNotification(context, l10n.serverReconnectFailed);
+      }
+    } finally {
+      if (mounted) setState(() => _busy = false);
+    }
+  }
+
+  @override
+  void dispose() {
+    _hostController.dispose();
+    _portController.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final cs = Theme.of(context).colorScheme;
+    final l10n = AppLocalizations.of(context)!;
+    final bottomInset = MediaQuery.viewInsetsOf(context).bottom;
+    return Padding(
+      padding: EdgeInsets.only(bottom: bottomInset),
+      child: SingleChildScrollView(
+        child: Padding(
+          padding: const EdgeInsets.fromLTRB(16, 8, 16, 24),
+          child: Column(
+            mainAxisSize: MainAxisSize.min,
+            crossAxisAlignment: CrossAxisAlignment.stretch,
+            children: [
+              Center(
+                child: Container(
+                  width: 40,
+                  height: 4,
+                  margin: const EdgeInsets.only(bottom: 16),
+                  decoration: BoxDecoration(
+                    color: cs.onSurfaceVariant.withValues(alpha: 0.35),
+                    borderRadius: BorderRadius.circular(2),
+                  ),
+                ),
+              ),
+              Text(
+                l10n.serverSettingsTitle,
+                style: GoogleFonts.inter(
+                  color: cs.onSurface,
+                  fontSize: 18,
+                  fontWeight: FontWeight.w600,
+                ),
+              ),
+              const SizedBox(height: 20),
+              _buildTextField(
+                controller: _hostController,
+                label: l10n.serverHostLabel,
+                hintText: ServerConfig.defaultHost,
+                cs: cs,
+                keyboardType: TextInputType.url,
+              ),
+              const SizedBox(height: 16),
+              _buildTextField(
+                controller: _portController,
+                label: l10n.serverPortLabel,
+                hintText: '${ServerConfig.defaultPort}',
+                cs: cs,
+                keyboardType: TextInputType.number,
+                inputFormatters: [
+                  FilteringTextInputFormatter.digitsOnly,
+                ],
+              ),
+              const SizedBox(height: 24),
+              FilledButton(
+                onPressed: _busy ? null : () => _apply(l10n),
+                child: Text(l10n.serverApply),
+              ),
+              const SizedBox(height: 12),
+              OutlinedButton(
+                onPressed: _busy ? null : () => _resetToDefault(l10n),
+                child: Text(l10n.serverUseDefault),
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+
+  Widget _buildTextField({
+    required TextEditingController controller,
+    required String label,
+    required ColorScheme cs,
+    String? hintText,
+    TextInputType? keyboardType,
+    List<TextInputFormatter>? inputFormatters,
+  }) {
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        Text(
+          label,
+          style: GoogleFonts.inter(
+            color: cs.onSurfaceVariant,
+            fontWeight: FontWeight.w500,
+            fontSize: 14,
+          ),
+        ),
+        const SizedBox(height: 8),
+        TextField(
+          controller: controller,
+          keyboardType: keyboardType,
+          inputFormatters: inputFormatters,
+          enabled: !_busy,
+          style: GoogleFonts.inter(
+            color: cs.onSurface,
+            fontSize: 15,
+          ),
+          decoration: InputDecoration(
+            hintText: hintText,
+            hintStyle: GoogleFonts.inter(
+              color: cs.onSurfaceVariant.withValues(alpha: 0.6),
+              fontSize: 15,
+            ),
+            filled: true,
+            fillColor: cs.surfaceContainerHighest,
+            border: OutlineInputBorder(
+              borderRadius: BorderRadius.circular(12),
+              borderSide: BorderSide.none,
+            ),
+            contentPadding: const EdgeInsets.symmetric(
+              horizontal: 16,
+              vertical: 14,
+            ),
+          ),
+        ),
+      ],
+    );
+  }
+}

lib/l10n/app_en.arb

@@ -15,6 +15,15 @@
   "loginReadTermsNotification": "Please read the terms of use first",
   "loginSpoofRedacted": "Spoof redaction",
   "loginProxy": "Proxy",
+  "loginChangeServer": "Change server",
+  "serverSettingsTitle": "Server",
+  "serverHostLabel": "Host",
+  "serverPortLabel": "Port",
+  "serverApply": "Apply and reconnect",
+  "serverUseDefault": "Reset to default",
+  "serverInvalidHostOrPort": "Enter a valid host and port (1–65535)",
+  "serverSettingsSaved": "Server settings applied",
+  "serverReconnectFailed": "Could not connect to the server",
   "loginSignInWithQr": "Sign in with QR code",
   "loginSignInWithToken": "Sign in with token",
   "loginSignInWithSessionFile": "Sign in with session file",

lib/l10n/app_localizations.dart

@@ -188,6 +188,60 @@ abstract class AppLocalizations {
   /// **'Proxy'**
   String get loginProxy;
 
+  /// No description provided for @loginChangeServer.
+  ///
+  /// In en, this message translates to:
+  /// **'Change server'**
+  String get loginChangeServer;
+
+  /// No description provided for @serverSettingsTitle.
+  ///
+  /// In en, this message translates to:
+  /// **'Server'**
+  String get serverSettingsTitle;
+
+  /// No description provided for @serverHostLabel.
+  ///
+  /// In en, this message translates to:
+  /// **'Host'**
+  String get serverHostLabel;
+
+  /// No description provided for @serverPortLabel.
+  ///
+  /// In en, this message translates to:
+  /// **'Port'**
+  String get serverPortLabel;
+
+  /// No description provided for @serverApply.
+  ///
+  /// In en, this message translates to:
+  /// **'Apply and reconnect'**
+  String get serverApply;
+
+  /// No description provided for @serverUseDefault.
+  ///
+  /// In en, this message translates to:
+  /// **'Reset to default'**
+  String get serverUseDefault;
+
+  /// No description provided for @serverInvalidHostOrPort.
+  ///
+  /// In en, this message translates to:
+  /// **'Enter a valid host and port (1–65535)'**
+  String get serverInvalidHostOrPort;
+
+  /// No description provided for @serverSettingsSaved.
+  ///
+  /// In en, this message translates to:
+  /// **'Server settings applied'**
+  String get serverSettingsSaved;
+
+  /// No description provided for @serverReconnectFailed.
+  ///
+  /// In en, this message translates to:
+  /// **'Could not connect to the server'**
+  String get serverReconnectFailed;
+
   /// No description provided for @loginSignInWithQr.
   ///
   /// In en, this message translates to:

lib/l10n/app_localizations_en.dart

@@ -54,6 +54,33 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get loginProxy => 'Proxy';
 
+  @override
+  String get loginChangeServer => 'Change server';
+
+  @override
+  String get serverSettingsTitle => 'Server';
+
+  @override
+  String get serverHostLabel => 'Host';
+
+  @override
+  String get serverPortLabel => 'Port';
+
+  @override
+  String get serverApply => 'Apply and reconnect';
+
+  @override
+  String get serverUseDefault => 'Reset to default';
+
+  @override
+  String get serverInvalidHostOrPort => 'Enter a valid host and port (1–65535)';
+
+  @override
+  String get serverSettingsSaved => 'Server settings applied';
+
+  @override
+  String get serverReconnectFailed => 'Could not connect to the server';
+
   @override
   String get loginSignInWithQr => 'Sign in with QR code';
 

lib/l10n/app_localizations_ru.dart

@@ -55,6 +55,34 @@ class AppLocalizationsRu extends AppLocalizations {
   @override
   String get loginProxy => 'Прокси';
 
+  @override
+  String get loginChangeServer => 'Смена сервера';
+
+  @override
+  String get serverSettingsTitle => 'Сервер';
+
+  @override
+  String get serverHostLabel => 'Хост';
+
+  @override
+  String get serverPortLabel => 'Порт';
+
+  @override
+  String get serverApply => 'Применить и переподключиться';
+
+  @override
+  String get serverUseDefault => 'Сбросить к умолчанию';
+
+  @override
+  String get serverInvalidHostOrPort =>
+      'Укажите корректный хост и порт (1–65535)';
+
+  @override
+  String get serverSettingsSaved => 'Настройки сервера применены';
+
+  @override
+  String get serverReconnectFailed => 'Не удалось подключиться к серверу';
+
   @override
   String get loginSignInWithQr => 'По QR code';
 

lib/l10n/app_ru.arb

@@ -15,6 +15,15 @@
   "loginReadTermsNotification": "Сначала прочитайте условия использования",
   "loginSpoofRedacted": "Подделка спуфа",
   "loginProxy": "Прокси",
+  "loginChangeServer": "Смена сервера",
+  "serverSettingsTitle": "Сервер",
+  "serverHostLabel": "Хост",
+  "serverPortLabel": "Порт",
+  "serverApply": "Применить и переподключиться",
+  "serverUseDefault": "Сбросить к умолчанию",
+  "serverInvalidHostOrPort": "Укажите корректный хост и порт (1–65535)",
+  "serverSettingsSaved": "Настройки сервера применены",
+  "serverReconnectFailed": "Не удалось подключиться к серверу",
   "loginSignInWithQr": "По QR code",
   "loginSignInWithToken": "По токену",
   "loginSignInWithSessionFile": "По файлу сессии",

pubspec.lock

@@ -21,10 +21,10 @@ packages:
     dependency: transitive
     description:
       name: characters
-      sha256: faf38497bda5ead2a8c7615f4f7939df04333478bf32e4173fcb06d428b5716b
+      sha256: f71061c654a3380576a52b451dd5532377954cf9dbd272a78fc8479606670803
       url: "https://pub.dev"
     source: hosted
-    version: "1.4.1"
+    version: "1.4.0"
   clock:
     dependency: transitive
     description:
@@ -313,18 +313,18 @@ packages:
     dependency: transitive
     description:
       name: matcher
-      sha256: dc0b7dc7651697ea4ff3e69ef44b0407ea32c487a39fff6a4004fa585e901861
+      sha256: dc58c723c3c24bf8d3e2d3ad3f2f9d7bd9cf43ec6feaa64181775e60190153f2
       url: "https://pub.dev"
     source: hosted
-    version: "0.12.19"
+    version: "0.12.17"
   material_color_utilities:
     dependency: transitive
     description:
       name: material_color_utilities
-      sha256: "9c337007e82b1889149c82ed242ed1cb24a66044e30979c44912381e9be4c48b"
+      sha256: f7142bb1154231d7ea5f96bc7bde4bda2a0945d2806bb11670e30b850d56bdec
       url: "https://pub.dev"
     source: hosted
-    version: "0.13.0"
+    version: "0.11.1"
   material_symbols_icons:
     dependency: "direct main"
     description:
@@ -638,10 +638,10 @@ packages:
     dependency: transitive
     description:
       name: test_api
-      sha256: "8161c84903fd860b26bfdefb7963b3f0b68fee7adea0f59ef805ecca346f0c7a"
+      sha256: ab2726c1a94d3176a45960b6234466ec367179b87dd74f1611adb1f3b5fb9d55
       url: "https://pub.dev"
     source: hosted
-    version: "0.7.10"
+    version: "0.7.7"
   timezone:
     dependency: "direct main"
     description: