add auth register

lib/features/auth/presentation/pages/register_page.dart

@@ -4,6 +4,7 @@
 /// Matches design from html/register.html
 library;
 
+import 'dart:convert';
 import 'dart:io';
 
 import 'package:flutter/material.dart';
@@ -12,12 +13,17 @@ import 'package:go_router/go_router.dart';
 import 'package:image_picker/image_picker.dart';
 
 import 'package:worker/core/constants/ui_constants.dart';
+import 'package:worker/core/router/app_router.dart';
 import 'package:worker/core/theme/colors.dart';
 import 'package:worker/core/utils/validators.dart';
 import 'package:worker/features/auth/domain/entities/business_unit.dart';
+import 'package:worker/features/auth/domain/entities/city.dart';
+import 'package:worker/features/auth/domain/entities/customer_group.dart';
+import 'package:worker/features/auth/presentation/providers/cities_provider.dart';
+import 'package:worker/features/auth/presentation/providers/customer_groups_provider.dart';
+import 'package:worker/features/auth/presentation/providers/session_provider.dart';
 import 'package:worker/features/auth/presentation/widgets/phone_input_field.dart';
 import 'package:worker/features/auth/presentation/widgets/file_upload_card.dart';
-import 'package:worker/features/auth/presentation/widgets/role_dropdown.dart';
 
 /// Registration Page
 ///
@@ -65,16 +71,60 @@ class _RegisterPageState extends ConsumerState<RegisterPage> {
   final _companyFocus = FocusNode();
 
   // State
-  String? _selectedRole;
-  String? _selectedCity;
+  CustomerGroup? _selectedRole;
+  City? _selectedCity;
   File? _idCardFile;
   File? _certificateFile;
   bool _termsAccepted = false;
   bool _passwordVisible = false;
   bool _isLoading = false;
+  bool _isLoadingData = true;
+  bool _hasInitialized = false;
 
   final _imagePicker = ImagePicker();
 
+  /// Initialize session and load data
+  /// This should be called from build method or after widget is mounted
+  Future<void> _initializeData() async {
+    if (!mounted) return;
+
+    setState(() {
+      _isLoadingData = true;
+      _hasInitialized = true;
+    });
+
+    try {
+      // Step 1: Get session (public API user)
+      await ref.read(sessionProvider.notifier).getSession();
+
+      // Step 2: Fetch cities and customer groups in parallel using the session
+      await Future.wait([
+        ref.read(citiesProvider.notifier).fetchCities(),
+        ref.read(customerGroupsProvider.notifier).fetchCustomerGroups(),
+      ]);
+    } catch (e) {
+      if (mounted) {
+        ScaffoldMessenger.of(context).showSnackBar(
+          SnackBar(
+            content: Text('Lỗi tải dữ liệu: $e'),
+            backgroundColor: AppColors.danger,
+            action: SnackBarAction(
+              label: 'Thử lại',
+              textColor: AppColors.white,
+              onPressed: _initializeData,
+            ),
+          ),
+        );
+      }
+    } finally {
+      if (mounted) {
+        setState(() {
+          _isLoadingData = false;
+        });
+      }
+    }
+  }
+
   @override
   void dispose() {
     _fullNameController.dispose();
@@ -95,8 +145,23 @@ class _RegisterPageState extends ConsumerState<RegisterPage> {
   }
 
   /// Check if verification section should be shown
+  /// Note: This is based on the old role system
+  /// TODO: Update this logic based on actual customer group requirements
   bool get _shouldShowVerification {
-    return _selectedRole == 'worker' || _selectedRole == 'dealer';
+    // For now, always hide verification section since we're using customer groups
+    return false;
+  }
+
+  /// Convert file to base64 string
+  Future<String?> _fileToBase64(File? file) async {
+    if (file == null) return null;
+    try {
+      final bytes = await file.readAsBytes();
+      return base64Encode(bytes);
+    } catch (e) {
+      debugPrint('Error converting file to base64: $e');
+      return null;
+    }
   }
 
   /// Pick image from gallery or camera
@@ -238,48 +303,60 @@ class _RegisterPageState extends ConsumerState<RegisterPage> {
     });
 
     try {
-      // TODO: Implement actual registration API call
-      // Include widget.selectedBusinessUnit?.id in the API request
-      // Example:
-      // final result = await authRepository.register(
-      //   fullName: _fullNameController.text.trim(),
-      //   phone: _phoneController.text.trim(),
-      //   email: _emailController.text.trim(),
-      //   password: _passwordController.text,
-      //   role: _selectedRole,
-      //   businessUnitId: widget.selectedBusinessUnit?.id,
-      //   ...
-      // );
+      // Get session state for CSRF token and SID
+      final sessionState = ref.read(sessionProvider);
 
-      // For now, simulate API delay
-      await Future.delayed(const Duration(seconds: 2));
+      if (!sessionState.hasSession) {
+        throw Exception('Session không hợp lệ. Vui lòng thử lại.');
+      }
+
+      // Convert files to base64
+      final idCardFrontBase64 = await _fileToBase64(_idCardFile);
+      final certificatesBase64 = _certificateFile != null
+          ? [await _fileToBase64(_certificateFile)]
+          : <String?>[];
+
+      // Remove null values from certificates list
+      final validCertificates = certificatesBase64
+          .whereType<String>()
+          .toList();
+
+      // Call registration API
+      final dataSource = ref.read(authRemoteDataSourceProvider);
+      final response = await dataSource.register(
+        csrfToken: sessionState.csrfToken!,
+        sid: sessionState.sid!,
+        fullName: _fullNameController.text.trim(),
+        phone: _phoneController.text.trim(),
+        email: _emailController.text.trim(),
+        customerGroupCode: _selectedRole?.value ?? _selectedRole?.name ?? '',
+        cityCode: _selectedCity?.code ?? '',
+        companyName: _companyController.text.trim().isEmpty
+            ? null
+            : _companyController.text.trim(),
+        taxCode: _taxCodeController.text.trim().isEmpty
+            ? null
+            : _taxCodeController.text.trim(),
+        idCardFrontBase64: idCardFrontBase64,
+        idCardBackBase64: null, // Not collecting back side in current UI
+        certificatesBase64: validCertificates,
+      );
 
       if (mounted) {
-        // Navigate based on role
-        if (_shouldShowVerification) {
-          // For workers/dealers with verification, show pending page
-          // TODO: Navigate to pending approval page
-          ScaffoldMessenger.of(context).showSnackBar(
-            const SnackBar(
-              content: Text(
-                'Đăng ký thành công! Tài khoản đang chờ xét duyệt.',
-              ),
-              backgroundColor: AppColors.success,
+        // Show success message
+        ScaffoldMessenger.of(context).showSnackBar(
+          const SnackBar(
+            content: Text(
+              'Đăng ký thành công!',
+              // response['message']?.toString() ?? 'Đăng ký thành công!',
             ),
-          );
-          context.pop();
-        } else {
-          // For other roles, navigate to OTP verification
-          // TODO: Navigate to OTP verification page
-          ScaffoldMessenger.of(context).showSnackBar(
-            const SnackBar(
-              content: Text('Đăng ký thành công! Vui lòng xác thực OTP.'),
-              backgroundColor: AppColors.success,
-            ),
-          );
-          // context.push('/otp-verification');
-          context.pop();
-        }
+            duration: Duration(seconds: 1),
+            backgroundColor: AppColors.success,
+          ),
+        );
+
+        Future<void>.delayed(const Duration(seconds: 1)).then((_) => context.goLogin());
+
       }
     } catch (e) {
       if (mounted) {
@@ -301,6 +378,14 @@ class _RegisterPageState extends ConsumerState<RegisterPage> {
 
   @override
   Widget build(BuildContext context) {
+    // Initialize data on first build
+    if (!_hasInitialized) {
+      // Use addPostFrameCallback to avoid calling setState during build
+      WidgetsBinding.instance.addPostFrameCallback((_) {
+        _initializeData();
+      });
+    }
+
     return Scaffold(
       backgroundColor: const Color(0xFFF4F6F8),
       appBar: AppBar(
@@ -320,8 +405,22 @@ class _RegisterPageState extends ConsumerState<RegisterPage> {
         ),
         centerTitle: false,
       ),
-      body: SafeArea(
-        child: Form(
+      body: _isLoadingData
+          ? const Center(
+              child: Column(
+                mainAxisAlignment: MainAxisAlignment.center,
+                children: [
+                  CircularProgressIndicator(),
+                  SizedBox(height: AppSpacing.md),
+                  Text(
+                    'Đang tải dữ liệu...',
+                    style: TextStyle(color: AppColors.grey500),
+                  ),
+                ],
+              ),
+            )
+          : SafeArea(
+              child: Form(
           key: _formKey,
           child: SingleChildScrollView(
             padding: const EdgeInsets.all(AppSpacing.md),
@@ -442,29 +541,9 @@ class _RegisterPageState extends ConsumerState<RegisterPage> {
                       ),
                       const SizedBox(height: AppSpacing.md),
 
-                      // Role Selection
+                      // Role Selection (Customer Groups)
                       _buildLabel('Vai trò *'),
-                      RoleDropdown(
-                        value: _selectedRole,
-                        onChanged: (value) {
-                          setState(() {
-                            _selectedRole = value;
-                            // Clear verification fields when role changes
-                            if (!_shouldShowVerification) {
-                              _idNumberController.clear();
-                              _taxCodeController.clear();
-                              _idCardFile = null;
-                              _certificateFile = null;
-                            }
-                          });
-                        },
-                        validator: (value) {
-                          if (value == null || value.isEmpty) {
-                            return 'Vui lòng chọn vai trò';
-                          }
-                          return null;
-                        },
-                      ),
+                      _buildCustomerGroupDropdown(),
                       const SizedBox(height: AppSpacing.md),
 
                       // Verification Section (conditional)
@@ -488,47 +567,7 @@ class _RegisterPageState extends ConsumerState<RegisterPage> {
 
                       // City/Province
                       _buildLabel('Tỉnh/Thành phố *'),
-                      DropdownButtonFormField<String>(
-                        value: _selectedCity,
-                        decoration: _buildInputDecoration(
-                          hintText: 'Chọn tỉnh/thành phố',
-                          prefixIcon: Icons.location_city,
-                        ),
-                        items: const [
-                          DropdownMenuItem(
-                            value: 'hanoi',
-                            child: Text('Hà Nội'),
-                          ),
-                          DropdownMenuItem(
-                            value: 'hcm',
-                            child: Text('TP. Hồ Chí Minh'),
-                          ),
-                          DropdownMenuItem(
-                            value: 'danang',
-                            child: Text('Đà Nẵng'),
-                          ),
-                          DropdownMenuItem(
-                            value: 'haiphong',
-                            child: Text('Hải Phòng'),
-                          ),
-                          DropdownMenuItem(
-                            value: 'cantho',
-                            child: Text('Cần Thơ'),
-                          ),
-                          DropdownMenuItem(value: 'other', child: Text('Khác')),
-                        ],
-                        onChanged: (value) {
-                          setState(() {
-                            _selectedCity = value;
-                          });
-                        },
-                        validator: (value) {
-                          if (value == null || value.isEmpty) {
-                            return 'Vui lòng chọn tỉnh/thành phố';
-                          }
-                          return null;
-                        },
-                      ),
+                      _buildCityDropdown(),
                       const SizedBox(height: AppSpacing.md),
 
                       // Terms and Conditions
@@ -648,8 +687,8 @@ class _RegisterPageState extends ConsumerState<RegisterPage> {
               ],
             ),
           ),
-        ),
-      ),
+              ),
+            ),
     );
   }
 
@@ -712,6 +751,143 @@ class _RegisterPageState extends ConsumerState<RegisterPage> {
     );
   }
 
+  /// Build customer group dropdown
+  Widget _buildCustomerGroupDropdown() {
+    final customerGroupsAsync = ref.watch(customerGroupsProvider);
+
+    return customerGroupsAsync.when(
+      data: (groups) {
+        return DropdownButtonFormField<CustomerGroup>(
+          value: _selectedRole,
+          decoration: _buildInputDecoration(
+            hintText: 'Chọn vai trò',
+            prefixIcon: Icons.work,
+          ),
+          items: groups
+              .map(
+                (group) => DropdownMenuItem(
+                  value: group,
+                  child: Text(group.customerGroupName),
+                ),
+              )
+              .toList(),
+          onChanged: (value) {
+            setState(() {
+              _selectedRole = value;
+              // Clear verification fields when role changes
+              if (!_shouldShowVerification) {
+                _idNumberController.clear();
+                _taxCodeController.clear();
+                _idCardFile = null;
+                _certificateFile = null;
+              }
+            });
+          },
+          validator: (value) {
+            if (value == null) {
+              return 'Vui lòng chọn vai trò';
+            }
+            return null;
+          },
+        );
+      },
+      loading: () => const SizedBox(
+        height: 48,
+        child: Center(child: CircularProgressIndicator()),
+      ),
+      error: (error, stack) => Container(
+        height: 48,
+        padding: const EdgeInsets.all(AppSpacing.sm),
+        decoration: BoxDecoration(
+          color: AppColors.danger.withValues(alpha: 0.1),
+          borderRadius: BorderRadius.circular(InputFieldSpecs.borderRadius),
+          border: Border.all(color: AppColors.danger),
+        ),
+        child: Row(
+          children: [
+            const Icon(Icons.error_outline, color: AppColors.danger, size: 20),
+            const SizedBox(width: AppSpacing.xs),
+            Expanded(
+              child: Text(
+                'Lỗi tải vai trò',
+                style: const TextStyle(color: AppColors.danger, fontSize: 12),
+              ),
+            ),
+            TextButton(
+              onPressed: _initializeData,
+              child: const Text('Thử lại', style: TextStyle(fontSize: 12)),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  /// Build city dropdown
+  Widget _buildCityDropdown() {
+    final citiesAsync = ref.watch(citiesProvider);
+
+    return citiesAsync.when(
+      data: (cities) {
+        return DropdownButtonFormField<City>(
+          value: _selectedCity,
+          decoration: _buildInputDecoration(
+            hintText: 'Chọn tỉnh/thành phố',
+            prefixIcon: Icons.location_city,
+          ),
+          items: cities
+              .map(
+                (city) => DropdownMenuItem(
+                  value: city,
+                  child: Text(city.cityName),
+                ),
+              )
+              .toList(),
+          onChanged: (value) {
+            setState(() {
+              _selectedCity = value;
+            });
+          },
+          validator: (value) {
+            if (value == null) {
+              return 'Vui lòng chọn tỉnh/thành phố';
+            }
+            return null;
+          },
+        );
+      },
+      loading: () => const SizedBox(
+        height: 48,
+        child: Center(child: CircularProgressIndicator()),
+      ),
+      error: (error, stack) => Container(
+        height: 48,
+        padding: const EdgeInsets.all(AppSpacing.sm),
+        decoration: BoxDecoration(
+          color: AppColors.danger.withValues(alpha: 0.1),
+          borderRadius: BorderRadius.circular(InputFieldSpecs.borderRadius),
+          border: Border.all(color: AppColors.danger),
+        ),
+        child: Row(
+          children: [
+            const Icon(Icons.error_outline, color: AppColors.danger, size: 20),
+            const SizedBox(width: AppSpacing.xs),
+            Expanded(
+              child: Text(
+                'Lỗi tải danh sách tỉnh/thành phố',
+                style: const TextStyle(color: AppColors.danger, fontSize: 12),
+              ),
+            ),
+            TextButton(
+              onPressed: _initializeData,
+              child: const Text('Thử lại', style: TextStyle(fontSize: 12)),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
   /// Build verification section
   Widget _buildVerificationSection() {
     return Container(

lib/features/auth/presentation/providers/cities_provider.dart

@@ -0,0 +1,62 @@
+/// Cities Provider
+///
+/// Manages the list of cities/provinces for address selection
+library;
+
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+import 'package:worker/features/auth/data/datasources/auth_remote_datasource.dart';
+import 'package:worker/features/auth/domain/entities/city.dart';
+import 'package:worker/features/auth/presentation/providers/session_provider.dart';
+
+part 'cities_provider.g.dart';
+
+/// Cities Provider
+///
+/// Fetches list of cities from API for registration form.
+/// Requires active session (CSRF token and SID).
+/// keepAlive: true ensures the cities list persists and doesn't auto-dispose.
+@Riverpod(keepAlive: true)
+class Cities extends _$Cities {
+  @override
+  Future<List<City>> build() async {
+    // Don't auto-fetch on build, wait for manual call
+    return [];
+  }
+
+  /// Fetch cities from API
+  Future<void> fetchCities() async {
+    state = const AsyncValue.loading();
+
+    state = await AsyncValue.guard(() async {
+      final sessionState = ref.read(sessionProvider);
+
+      if (!sessionState.hasSession) {
+        throw Exception('No active session. Please get session first.');
+      }
+
+      final dataSource = ref.read(authRemoteDataSourceProvider);
+      return await dataSource.getCities(
+        csrfToken: sessionState.csrfToken!,
+        sid: sessionState.sid!,
+      );
+    });
+  }
+
+  /// Refresh cities list
+  Future<void> refresh() async {
+    await fetchCities();
+  }
+}
+
+/// Provider to get a specific city by code
+@riverpod
+City? cityByCode(Ref ref, String code) {
+  final citiesAsync = ref.watch(citiesProvider);
+
+  return citiesAsync.whenOrNull(
+    data: (List<City> cities) => cities.firstWhere(
+      (City city) => city.code == code,
+      orElse: () => cities.first,
+    ),
+  );
+}

lib/features/auth/presentation/providers/cities_provider.g.dart

@@ -0,0 +1,160 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'cities_provider.dart';
+
+// **************************************************************************
+// RiverpodGenerator
+// **************************************************************************
+
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: type=lint, type=warning
+/// Cities Provider
+///
+/// Fetches list of cities from API for registration form.
+/// Requires active session (CSRF token and SID).
+/// keepAlive: true ensures the cities list persists and doesn't auto-dispose.
+
+@ProviderFor(Cities)
+const citiesProvider = CitiesProvider._();
+
+/// Cities Provider
+///
+/// Fetches list of cities from API for registration form.
+/// Requires active session (CSRF token and SID).
+/// keepAlive: true ensures the cities list persists and doesn't auto-dispose.
+final class CitiesProvider extends $AsyncNotifierProvider<Cities, List<City>> {
+  /// Cities Provider
+  ///
+  /// Fetches list of cities from API for registration form.
+  /// Requires active session (CSRF token and SID).
+  /// keepAlive: true ensures the cities list persists and doesn't auto-dispose.
+  const CitiesProvider._()
+    : super(
+        from: null,
+        argument: null,
+        retry: null,
+        name: r'citiesProvider',
+        isAutoDispose: false,
+        dependencies: null,
+        $allTransitiveDependencies: null,
+      );
+
+  @override
+  String debugGetCreateSourceHash() => _$citiesHash();
+
+  @$internal
+  @override
+  Cities create() => Cities();
+}
+
+String _$citiesHash() => r'0de4a7d44e576d74ecd875ddad46d6cb52a38bf8';
+
+/// Cities Provider
+///
+/// Fetches list of cities from API for registration form.
+/// Requires active session (CSRF token and SID).
+/// keepAlive: true ensures the cities list persists and doesn't auto-dispose.
+
+abstract class _$Cities extends $AsyncNotifier<List<City>> {
+  FutureOr<List<City>> build();
+  @$mustCallSuper
+  @override
+  void runBuild() {
+    final created = build();
+    final ref = this.ref as $Ref<AsyncValue<List<City>>, List<City>>;
+    final element =
+        ref.element
+            as $ClassProviderElement<
+              AnyNotifier<AsyncValue<List<City>>, List<City>>,
+              AsyncValue<List<City>>,
+              Object?,
+              Object?
+            >;
+    element.handleValue(ref, created);
+  }
+}
+
+/// Provider to get a specific city by code
+
+@ProviderFor(cityByCode)
+const cityByCodeProvider = CityByCodeFamily._();
+
+/// Provider to get a specific city by code
+
+final class CityByCodeProvider extends $FunctionalProvider<City?, City?, City?>
+    with $Provider<City?> {
+  /// Provider to get a specific city by code
+  const CityByCodeProvider._({
+    required CityByCodeFamily super.from,
+    required String super.argument,
+  }) : super(
+         retry: null,
+         name: r'cityByCodeProvider',
+         isAutoDispose: true,
+         dependencies: null,
+         $allTransitiveDependencies: null,
+       );
+
+  @override
+  String debugGetCreateSourceHash() => _$cityByCodeHash();
+
+  @override
+  String toString() {
+    return r'cityByCodeProvider'
+        ''
+        '($argument)';
+  }
+
+  @$internal
+  @override
+  $ProviderElement<City?> $createElement($ProviderPointer pointer) =>
+      $ProviderElement(pointer);
+
+  @override
+  City? create(Ref ref) {
+    final argument = this.argument as String;
+    return cityByCode(ref, argument);
+  }
+
+  /// {@macro riverpod.override_with_value}
+  Override overrideWithValue(City? value) {
+    return $ProviderOverride(
+      origin: this,
+      providerOverride: $SyncValueProvider<City?>(value),
+    );
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return other is CityByCodeProvider && other.argument == argument;
+  }
+
+  @override
+  int get hashCode {
+    return argument.hashCode;
+  }
+}
+
+String _$cityByCodeHash() => r'4e4a9a72526b0a366b8697244f2e7e2aedf7cabe';
+
+/// Provider to get a specific city by code
+
+final class CityByCodeFamily extends $Family
+    with $FunctionalFamilyOverride<City?, String> {
+  const CityByCodeFamily._()
+    : super(
+        retry: null,
+        name: r'cityByCodeProvider',
+        dependencies: null,
+        $allTransitiveDependencies: null,
+        isAutoDispose: true,
+      );
+
+  /// Provider to get a specific city by code
+
+  CityByCodeProvider call(String code) =>
+      CityByCodeProvider._(argument: code, from: this);
+
+  @override
+  String toString() => r'cityByCodeProvider';
+}

lib/features/auth/presentation/providers/customer_groups_provider.dart

@@ -0,0 +1,65 @@
+/// Customer Groups Provider
+///
+/// Manages the list of customer groups (roles) for user registration
+library;
+
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+import 'package:worker/features/auth/data/datasources/auth_remote_datasource.dart';
+import 'package:worker/features/auth/domain/entities/customer_group.dart';
+import 'package:worker/features/auth/presentation/providers/session_provider.dart';
+
+part 'customer_groups_provider.g.dart';
+
+/// Customer Groups Provider
+///
+/// Fetches list of customer groups (roles) from API for registration form.
+/// Requires active session (CSRF token and SID).
+/// keepAlive: true ensures the customer groups list persists and doesn't auto-dispose.
+@Riverpod(keepAlive: true)
+class CustomerGroups extends _$CustomerGroups {
+  @override
+  Future<List<CustomerGroup>> build() async {
+    // Don't auto-fetch on build, wait for manual call
+    return [];
+  }
+
+  /// Fetch customer groups from API
+  Future<void> fetchCustomerGroups() async {
+    state = const AsyncValue.loading();
+
+    state = await AsyncValue.guard(() async {
+      final sessionState = ref.read(sessionProvider);
+
+      if (!sessionState.hasSession) {
+        throw Exception('No active session. Please get session first.');
+      }
+
+      final dataSource = ref.read(authRemoteDataSourceProvider);
+      return await dataSource.getCustomerGroups(
+        csrfToken: sessionState.csrfToken!,
+        sid: sessionState.sid!,
+      );
+    });
+  }
+
+  /// Refresh customer groups list
+  Future<void> refresh() async {
+    await fetchCustomerGroups();
+  }
+}
+
+/// Provider to get a specific customer group by code/value
+@riverpod
+CustomerGroup? customerGroupByCode(
+  Ref ref,
+  String code,
+) {
+  final groupsAsync = ref.watch(customerGroupsProvider);
+
+  return groupsAsync.whenOrNull(
+    data: (List<CustomerGroup> groups) => groups.firstWhere(
+      (CustomerGroup group) => group.value == code || group.name == code,
+      orElse: () => groups.first,
+    ),
+  );
+}

lib/features/auth/presentation/providers/customer_groups_provider.g.dart

@@ -0,0 +1,164 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'customer_groups_provider.dart';
+
+// **************************************************************************
+// RiverpodGenerator
+// **************************************************************************
+
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: type=lint, type=warning
+/// Customer Groups Provider
+///
+/// Fetches list of customer groups (roles) from API for registration form.
+/// Requires active session (CSRF token and SID).
+/// keepAlive: true ensures the customer groups list persists and doesn't auto-dispose.
+
+@ProviderFor(CustomerGroups)
+const customerGroupsProvider = CustomerGroupsProvider._();
+
+/// Customer Groups Provider
+///
+/// Fetches list of customer groups (roles) from API for registration form.
+/// Requires active session (CSRF token and SID).
+/// keepAlive: true ensures the customer groups list persists and doesn't auto-dispose.
+final class CustomerGroupsProvider
+    extends $AsyncNotifierProvider<CustomerGroups, List<CustomerGroup>> {
+  /// Customer Groups Provider
+  ///
+  /// Fetches list of customer groups (roles) from API for registration form.
+  /// Requires active session (CSRF token and SID).
+  /// keepAlive: true ensures the customer groups list persists and doesn't auto-dispose.
+  const CustomerGroupsProvider._()
+    : super(
+        from: null,
+        argument: null,
+        retry: null,
+        name: r'customerGroupsProvider',
+        isAutoDispose: false,
+        dependencies: null,
+        $allTransitiveDependencies: null,
+      );
+
+  @override
+  String debugGetCreateSourceHash() => _$customerGroupsHash();
+
+  @$internal
+  @override
+  CustomerGroups create() => CustomerGroups();
+}
+
+String _$customerGroupsHash() => r'df9107ef844e3cd320804af8d5dcf2fee2462208';
+
+/// Customer Groups Provider
+///
+/// Fetches list of customer groups (roles) from API for registration form.
+/// Requires active session (CSRF token and SID).
+/// keepAlive: true ensures the customer groups list persists and doesn't auto-dispose.
+
+abstract class _$CustomerGroups extends $AsyncNotifier<List<CustomerGroup>> {
+  FutureOr<List<CustomerGroup>> build();
+  @$mustCallSuper
+  @override
+  void runBuild() {
+    final created = build();
+    final ref =
+        this.ref as $Ref<AsyncValue<List<CustomerGroup>>, List<CustomerGroup>>;
+    final element =
+        ref.element
+            as $ClassProviderElement<
+              AnyNotifier<AsyncValue<List<CustomerGroup>>, List<CustomerGroup>>,
+              AsyncValue<List<CustomerGroup>>,
+              Object?,
+              Object?
+            >;
+    element.handleValue(ref, created);
+  }
+}
+
+/// Provider to get a specific customer group by code/value
+
+@ProviderFor(customerGroupByCode)
+const customerGroupByCodeProvider = CustomerGroupByCodeFamily._();
+
+/// Provider to get a specific customer group by code/value
+
+final class CustomerGroupByCodeProvider
+    extends $FunctionalProvider<CustomerGroup?, CustomerGroup?, CustomerGroup?>
+    with $Provider<CustomerGroup?> {
+  /// Provider to get a specific customer group by code/value
+  const CustomerGroupByCodeProvider._({
+    required CustomerGroupByCodeFamily super.from,
+    required String super.argument,
+  }) : super(
+         retry: null,
+         name: r'customerGroupByCodeProvider',
+         isAutoDispose: true,
+         dependencies: null,
+         $allTransitiveDependencies: null,
+       );
+
+  @override
+  String debugGetCreateSourceHash() => _$customerGroupByCodeHash();
+
+  @override
+  String toString() {
+    return r'customerGroupByCodeProvider'
+        ''
+        '($argument)';
+  }
+
+  @$internal
+  @override
+  $ProviderElement<CustomerGroup?> $createElement($ProviderPointer pointer) =>
+      $ProviderElement(pointer);
+
+  @override
+  CustomerGroup? create(Ref ref) {
+    final argument = this.argument as String;
+    return customerGroupByCode(ref, argument);
+  }
+
+  /// {@macro riverpod.override_with_value}
+  Override overrideWithValue(CustomerGroup? value) {
+    return $ProviderOverride(
+      origin: this,
+      providerOverride: $SyncValueProvider<CustomerGroup?>(value),
+    );
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return other is CustomerGroupByCodeProvider && other.argument == argument;
+  }
+
+  @override
+  int get hashCode {
+    return argument.hashCode;
+  }
+}
+
+String _$customerGroupByCodeHash() =>
+    r'0ddf96a19d7c20c9fe3ddfd2af80ac49bfe76512';
+
+/// Provider to get a specific customer group by code/value
+
+final class CustomerGroupByCodeFamily extends $Family
+    with $FunctionalFamilyOverride<CustomerGroup?, String> {
+  const CustomerGroupByCodeFamily._()
+    : super(
+        retry: null,
+        name: r'customerGroupByCodeProvider',
+        dependencies: null,
+        $allTransitiveDependencies: null,
+        isAutoDispose: true,
+      );
+
+  /// Provider to get a specific customer group by code/value
+
+  CustomerGroupByCodeProvider call(String code) =>
+      CustomerGroupByCodeProvider._(argument: code, from: this);
+
+  @override
+  String toString() => r'customerGroupByCodeProvider';
+}

lib/features/auth/presentation/providers/session_provider.dart

@@ -0,0 +1,107 @@
+/// Session Provider
+///
+/// Manages authentication session (SID and CSRF token)
+library;
+
+import 'package:curl_logger_dio_interceptor/curl_logger_dio_interceptor.dart';
+import 'package:dio/dio.dart';
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+import 'package:worker/features/auth/data/datasources/auth_remote_datasource.dart';
+import 'package:worker/features/auth/data/models/auth_session_model.dart';
+
+part 'session_provider.g.dart';
+
+/// Provider for Dio instance
+@Riverpod(keepAlive: true)
+Dio dio(Ref ref) {
+  final dio = Dio(
+    BaseOptions(
+      baseUrl: 'https://land.dbiz.com',
+      connectTimeout: const Duration(seconds: 30),
+      receiveTimeout: const Duration(seconds: 30),
+    ),
+  );
+
+  // Add curl logger interceptor for debugging
+  dio.interceptors.add(CurlLoggerDioInterceptor(printOnSuccess: true));
+
+  return dio;
+}
+
+/// Provider for AuthRemoteDataSource
+@Riverpod(keepAlive: true)
+AuthRemoteDataSource authRemoteDataSource(Ref ref) {
+  final dio = ref.watch(dioProvider);
+  return AuthRemoteDataSource(dio);
+}
+
+/// Session State
+class SessionState {
+  final String? sid;
+  final String? csrfToken;
+  final bool isLoading;
+  final String? error;
+
+  const SessionState({
+    this.sid,
+    this.csrfToken,
+    this.isLoading = false,
+    this.error,
+  });
+
+  SessionState copyWith({
+    String? sid,
+    String? csrfToken,
+    bool? isLoading,
+    String? error,
+  }) {
+    return SessionState(
+      sid: sid ?? this.sid,
+      csrfToken: csrfToken ?? this.csrfToken,
+      isLoading: isLoading ?? this.isLoading,
+      error: error ?? this.error,
+    );
+  }
+
+  bool get hasSession => sid != null && csrfToken != null;
+}
+
+/// Session Provider
+///
+/// Manages the authentication session including SID and CSRF token.
+/// This should be called before making any authenticated requests.
+/// keepAlive: true ensures the session persists across the app lifecycle.
+@Riverpod(keepAlive: true)
+class Session extends _$Session {
+  @override
+  SessionState build() {
+    return const SessionState();
+  }
+
+  /// Get session from API
+  Future<void> getSession() async {
+    state = state.copyWith(isLoading: true, error: null);
+
+    try {
+      final dataSource = ref.read(authRemoteDataSourceProvider);
+      final response = await dataSource.getSession();
+
+      state = SessionState(
+        sid: response.message.data.sid,
+        csrfToken: response.message.data.csrfToken,
+        isLoading: false,
+      );
+    } catch (e) {
+      state = SessionState(
+        isLoading: false,
+        error: e.toString(),
+      );
+      rethrow;
+    }
+  }
+
+  /// Clear session
+  void clearSession() {
+    state = const SessionState();
+  }
+}

lib/features/auth/presentation/providers/session_provider.g.dart

@@ -0,0 +1,181 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'session_provider.dart';
+
+// **************************************************************************
+// RiverpodGenerator
+// **************************************************************************
+
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: type=lint, type=warning
+/// Provider for Dio instance
+
+@ProviderFor(dio)
+const dioProvider = DioProvider._();
+
+/// Provider for Dio instance
+
+final class DioProvider extends $FunctionalProvider<Dio, Dio, Dio>
+    with $Provider<Dio> {
+  /// Provider for Dio instance
+  const DioProvider._()
+    : super(
+        from: null,
+        argument: null,
+        retry: null,
+        name: r'dioProvider',
+        isAutoDispose: false,
+        dependencies: null,
+        $allTransitiveDependencies: null,
+      );
+
+  @override
+  String debugGetCreateSourceHash() => _$dioHash();
+
+  @$internal
+  @override
+  $ProviderElement<Dio> $createElement($ProviderPointer pointer) =>
+      $ProviderElement(pointer);
+
+  @override
+  Dio create(Ref ref) {
+    return dio(ref);
+  }
+
+  /// {@macro riverpod.override_with_value}
+  Override overrideWithValue(Dio value) {
+    return $ProviderOverride(
+      origin: this,
+      providerOverride: $SyncValueProvider<Dio>(value),
+    );
+  }
+}
+
+String _$dioHash() => r'2bc10725a1b646cfaabd88c722e5101c06837c75';
+
+/// Provider for AuthRemoteDataSource
+
+@ProviderFor(authRemoteDataSource)
+const authRemoteDataSourceProvider = AuthRemoteDataSourceProvider._();
+
+/// Provider for AuthRemoteDataSource
+
+final class AuthRemoteDataSourceProvider
+    extends
+        $FunctionalProvider<
+          AuthRemoteDataSource,
+          AuthRemoteDataSource,
+          AuthRemoteDataSource
+        >
+    with $Provider<AuthRemoteDataSource> {
+  /// Provider for AuthRemoteDataSource
+  const AuthRemoteDataSourceProvider._()
+    : super(
+        from: null,
+        argument: null,
+        retry: null,
+        name: r'authRemoteDataSourceProvider',
+        isAutoDispose: false,
+        dependencies: null,
+        $allTransitiveDependencies: null,
+      );
+
+  @override
+  String debugGetCreateSourceHash() => _$authRemoteDataSourceHash();
+
+  @$internal
+  @override
+  $ProviderElement<AuthRemoteDataSource> $createElement(
+    $ProviderPointer pointer,
+  ) => $ProviderElement(pointer);
+
+  @override
+  AuthRemoteDataSource create(Ref ref) {
+    return authRemoteDataSource(ref);
+  }
+
+  /// {@macro riverpod.override_with_value}
+  Override overrideWithValue(AuthRemoteDataSource value) {
+    return $ProviderOverride(
+      origin: this,
+      providerOverride: $SyncValueProvider<AuthRemoteDataSource>(value),
+    );
+  }
+}
+
+String _$authRemoteDataSourceHash() =>
+    r'6a18a0d3fee86c512b6eec01b8e8fda53a307a4c';
+
+/// Session Provider
+///
+/// Manages the authentication session including SID and CSRF token.
+/// This should be called before making any authenticated requests.
+/// keepAlive: true ensures the session persists across the app lifecycle.
+
+@ProviderFor(Session)
+const sessionProvider = SessionProvider._();
+
+/// Session Provider
+///
+/// Manages the authentication session including SID and CSRF token.
+/// This should be called before making any authenticated requests.
+/// keepAlive: true ensures the session persists across the app lifecycle.
+final class SessionProvider extends $NotifierProvider<Session, SessionState> {
+  /// Session Provider
+  ///
+  /// Manages the authentication session including SID and CSRF token.
+  /// This should be called before making any authenticated requests.
+  /// keepAlive: true ensures the session persists across the app lifecycle.
+  const SessionProvider._()
+    : super(
+        from: null,
+        argument: null,
+        retry: null,
+        name: r'sessionProvider',
+        isAutoDispose: false,
+        dependencies: null,
+        $allTransitiveDependencies: null,
+      );
+
+  @override
+  String debugGetCreateSourceHash() => _$sessionHash();
+
+  @$internal
+  @override
+  Session create() => Session();
+
+  /// {@macro riverpod.override_with_value}
+  Override overrideWithValue(SessionState value) {
+    return $ProviderOverride(
+      origin: this,
+      providerOverride: $SyncValueProvider<SessionState>(value),
+    );
+  }
+}
+
+String _$sessionHash() => r'9c755f010681d87ab3898c4daaa920501104df46';
+
+/// Session Provider
+///
+/// Manages the authentication session including SID and CSRF token.
+/// This should be called before making any authenticated requests.
+/// keepAlive: true ensures the session persists across the app lifecycle.
+
+abstract class _$Session extends $Notifier<SessionState> {
+  SessionState build();
+  @$mustCallSuper
+  @override
+  void runBuild() {
+    final created = build();
+    final ref = this.ref as $Ref<SessionState, SessionState>;
+    final element =
+        ref.element
+            as $ClassProviderElement<
+              AnyNotifier<SessionState, SessionState>,
+              SessionState,
+              Object?,
+              Object?
+            >;
+    element.handleValue(ref, created);
+  }
+}