init

lib/features/auth/auth_cubit.dart

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+import 'package:dio/dio.dart';
+import 'package:equatable/equatable.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+
+import 'auth_repository.dart';
+
+enum AuthStatus { initial, loading, otpSent, authenticated, error }
+
+class AuthState extends Equatable {
+  final AuthStatus status;
+  final String mobile;
+  final String? error;
+
+  const AuthState({
+    this.status = AuthStatus.initial,
+    this.mobile = '',
+    this.error,
+  });
+
+  AuthState copyWith({AuthStatus? status, String? mobile, String? error}) =>
+      AuthState(
+        status: status ?? this.status,
+        mobile: mobile ?? this.mobile,
+        error: error,
+      );
+
+  @override
+  List<Object?> get props => [status, mobile, error];
+}
+
+class AuthCubit extends Cubit<AuthState> {
+  final AuthRepository _repo;
+  AuthCubit(this._repo) : super(const AuthState());
+
+  Future<void> requestOtp(String mobile) async {
+    emit(state.copyWith(status: AuthStatus.loading, mobile: mobile));
+    try {
+      await _repo.requestOtp(mobile);
+      emit(state.copyWith(status: AuthStatus.otpSent, mobile: mobile));
+    } catch (e) {
+      emit(state.copyWith(status: AuthStatus.error, error: _msg(e)));
+    }
+  }
+
+  Future<void> verifyOtp(String code) async {
+    emit(state.copyWith(status: AuthStatus.loading));
+    try {
+      await _repo.verifyOtp(state.mobile, code);
+      emit(state.copyWith(status: AuthStatus.authenticated));
+    } catch (e) {
+      emit(state.copyWith(status: AuthStatus.error, error: _msg(e)));
+    }
+  }
+
+  Future<void> logout() async {
+    await _repo.logout();
+    emit(const AuthState());
+  }
+
+  /// بازنشانی وضعیت خطا به حالت مناسب فرم.
+  void resetError({required bool onOtpScreen}) {
+    emit(state.copyWith(
+        status: onOtpScreen ? AuthStatus.otpSent : AuthStatus.initial));
+  }
+
+  String _msg(Object e) {
+    if (e is DioException) {
+      final data = e.response?.data;
+      if (data is Map && data['message'] != null) {
+        return data['message'].toString();
+      }
+      return 'خطا در ارتباط با سرور';
+    }
+    return 'خطای نامشخص';
+  }
+}

lib/features/auth/auth_repository.dart

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+import '../../core/network/api_client.dart';
+import '../../core/storage/token_storage.dart';
+
+/// دسترسی به endpointهای احراز هویت (login-otp / check-otp).
+class AuthRepository {
+  final ApiClient _api;
+  final TokenStorage _storage;
+
+  AuthRepository(this._api, this._storage);
+
+  /// درخواست ارسال کد یک‌بارمصرف.
+  Future<void> requestOtp(String mobile) async {
+    await _api.dio.post('/auth/login-otp', data: {'mobile': mobile});
+  }
+
+  /// اعتبارسنجی کد و ذخیره‌ی توکن JWT.
+  Future<void> verifyOtp(String mobile, String code) async {
+    final res = await _api.dio.post(
+      '/auth/check-otp',
+      data: {'mobile': mobile, 'token': code},
+    );
+    final token = res.data['token'] as String?;
+    if (token == null || token.isEmpty) {
+      throw Exception('no token in response');
+    }
+    await _storage.write(token);
+  }
+
+  Future<bool> isLoggedIn() async {
+    final t = await _storage.read();
+    return t != null && t.isNotEmpty;
+  }
+
+  Future<void> logout() => _storage.clear();
+}

lib/features/auth/mobile_screen.dart

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+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:go_router/go_router.dart';
+
+import '../../core/theme/app_theme.dart';
+import 'auth_cubit.dart';
+
+/// صفحه‌ی ورود شماره موبایل.
+class MobileScreen extends StatefulWidget {
+  const MobileScreen({super.key});
+
+  @override
+  State<MobileScreen> createState() => _MobileScreenState();
+}
+
+class _MobileScreenState extends State<MobileScreen> {
+  final _controller = TextEditingController();
+
+  @override
+  void dispose() {
+    _controller.dispose();
+    super.dispose();
+  }
+
+  bool get _valid => RegExp(r'^09\d{9}$').hasMatch(_controller.text.trim());
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      body: SafeArea(
+        child: BlocConsumer<AuthCubit, AuthState>(
+          listener: (context, state) {
+            if (state.status == AuthStatus.otpSent) {
+              context.push('/otp');
+            } else if (state.status == AuthStatus.error) {
+              ScaffoldMessenger.of(context).showSnackBar(
+                SnackBar(content: Text(state.error ?? 'خطا')),
+              );
+            }
+          },
+          builder: (context, state) {
+            final loading = state.status == AuthStatus.loading;
+            return Padding(
+              padding: const EdgeInsets.all(24),
+              child: Column(
+                mainAxisAlignment: MainAxisAlignment.center,
+                children: [
+                  const Text('سلطان حکم',
+                      style: TextStyle(
+                          fontSize: 36,
+                          fontWeight: FontWeight.bold,
+                          color: AppColors.gold)),
+                  const SizedBox(height: 8),
+                  const Text('برای ورود شماره موبایلت رو وارد کن',
+                      style: TextStyle(color: Colors.white70)),
+                  const SizedBox(height: 32),
+                  TextField(
+                    controller: _controller,
+                    keyboardType: TextInputType.phone,
+                    textAlign: TextAlign.center,
+                    style: const TextStyle(fontSize: 20, letterSpacing: 2),
+                    inputFormatters: [
+                      FilteringTextInputFormatter.digitsOnly,
+                      LengthLimitingTextInputFormatter(11),
+                    ],
+                    decoration: const InputDecoration(hintText: '09xxxxxxxxx'),
+                    onChanged: (_) => setState(() {}),
+                  ),
+                  const SizedBox(height: 24),
+                  ElevatedButton(
+                    onPressed: (!_valid || loading)
+                        ? null
+                        : () => context
+                            .read<AuthCubit>()
+                            .requestOtp(_controller.text.trim()),
+                    child: loading
+                        ? const SizedBox(
+                            height: 22,
+                            width: 22,
+                            child: CircularProgressIndicator(strokeWidth: 2))
+                        : const Text('دریافت کد'),
+                  ),
+                ],
+              ),
+            );
+          },
+        ),
+      ),
+    );
+  }
+}

lib/features/auth/otp_screen.dart

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+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:go_router/go_router.dart';
+
+import '../../core/theme/app_theme.dart';
+import 'auth_cubit.dart';
+
+/// صفحه‌ی ورود کد یک‌بارمصرف (۵ رقمی).
+class OtpScreen extends StatefulWidget {
+  const OtpScreen({super.key});
+
+  @override
+  State<OtpScreen> createState() => _OtpScreenState();
+}
+
+class _OtpScreenState extends State<OtpScreen> {
+  final _controller = TextEditingController();
+
+  @override
+  void dispose() {
+    _controller.dispose();
+    super.dispose();
+  }
+
+  bool get _valid => _controller.text.trim().length == 5;
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(title: const Text('تأیید کد')),
+      body: SafeArea(
+        child: BlocConsumer<AuthCubit, AuthState>(
+          listener: (context, state) {
+            if (state.status == AuthStatus.authenticated) {
+              context.go('/lobby');
+            } else if (state.status == AuthStatus.error) {
+              ScaffoldMessenger.of(context).showSnackBar(
+                SnackBar(content: Text(state.error ?? 'خطا')),
+              );
+              context.read<AuthCubit>().resetError(onOtpScreen: true);
+            }
+          },
+          builder: (context, state) {
+            final loading = state.status == AuthStatus.loading;
+            return Padding(
+              padding: const EdgeInsets.all(24),
+              child: Column(
+                mainAxisAlignment: MainAxisAlignment.center,
+                children: [
+                  Text('کد پیامک‌شده به ${state.mobile} را وارد کنید',
+                      textAlign: TextAlign.center,
+                      style: const TextStyle(color: Colors.white70)),
+                  const SizedBox(height: 32),
+                  TextField(
+                    controller: _controller,
+                    keyboardType: TextInputType.number,
+                    textAlign: TextAlign.center,
+                    style: const TextStyle(fontSize: 28, letterSpacing: 12),
+                    inputFormatters: [
+                      FilteringTextInputFormatter.digitsOnly,
+                      LengthLimitingTextInputFormatter(5),
+                    ],
+                    decoration: const InputDecoration(hintText: '- - - - -'),
+                    onChanged: (_) => setState(() {}),
+                  ),
+                  const SizedBox(height: 24),
+                  ElevatedButton(
+                    onPressed: (!_valid || loading)
+                        ? null
+                        : () => context
+                            .read<AuthCubit>()
+                            .verifyOtp(_controller.text.trim()),
+                    child: loading
+                        ? const SizedBox(
+                            height: 22,
+                            width: 22,
+                            child: CircularProgressIndicator(strokeWidth: 2))
+                        : const Text('ورود'),
+                  ),
+                  TextButton(
+                    onPressed: loading ? null : () => context.pop(),
+                    child: const Text('تغییر شماره',
+                        style: TextStyle(color: AppColors.gold)),
+                  ),
+                ],
+              ),
+            );
+          },
+        ),
+      ),
+    );
+  }
+}