added api for forgot password otp

lib/view_models/auth_view_model.dart

@@ -1,6 +1,8 @@
 import 'package:flutter/material.dart';
 import 'package:tm_app/data/services/model/customer/customer.dart';
 import 'package:tm_app/data/services/model/forgot_password_response/forgot_password_response_model.dart';
+import 'package:tm_app/data/services/model/verify_otp_response/verify_otp_response_model.dart';
+import 'package:tm_app/views/forget_password_create/pages/forgot_password_create_screen.dart';
 
 import '../core/utils/result.dart';
 import '../data/repositories/auth_repository.dart';
@@ -11,7 +13,7 @@ class AuthViewModel with ChangeNotifier {
   final AuthRepository _authRepository;
 
   AuthViewModel({required AuthRepository authRepository})
-      : _authRepository = authRepository {
+    : _authRepository = authRepository {
     usernameController.addListener(_onTextChanged);
     passwordController.addListener(_onTextChanged);
     emailController.addListener(_onTextChanged);
@@ -38,8 +40,7 @@ class AuthViewModel with ChangeNotifier {
   bool get obscureForgotPassword => _obscureForgotPassword;
 
   bool get isLoginEnabled =>
-      usernameController.text.isNotEmpty &&
-      passwordController.text.isNotEmpty;
+      usernameController.text.isNotEmpty && passwordController.text.isNotEmpty;
 
   // Auth state
   bool _isLoading = false;
@@ -52,6 +53,7 @@ class AuthViewModel with ChangeNotifier {
   String? get errorMessage => _errorMessage;
   Customer? get loggedInUser => _loggedInUser;
   String? get forgotPasswordMessage => _forgotPasswordMessage;
+  String? resetToken;
 
   void togglePasswordVisibility() {
     _obscurePassword = !_obscurePassword;
@@ -75,7 +77,7 @@ class AuthViewModel with ChangeNotifier {
   }
 
   bool get canSubmitOtpPage {
-    return isEmailValid && isOtpValid;
+    return isOtpValid;
   }
 
   bool get isNewPasswordValid {
@@ -147,7 +149,6 @@ class AuthViewModel with ChangeNotifier {
 
     notifyListeners();
 
-    // reset error after notify
     _errorMessage = null;
     notifyListeners();
   }
@@ -168,7 +169,6 @@ class AuthViewModel with ChangeNotifier {
         successMessage = result.value.message;
         notifyListeners();
 
-        // پاک شدن بعد از یک بار مصرف
         Future.microtask(() {
           successMessage = null;
         });
@@ -186,6 +186,37 @@ class AuthViewModel with ChangeNotifier {
     }
   }
 
+  Future<void> verifyOtp(BuildContext context) async {
+    _isLoading = true;
+    _errorMessage = null;
+    notifyListeners();
+
+    final result = await _authRepository.verifyOtp(
+      code: otpController.text.trim(),
+      email: emailController.text.trim(),
+    );
+
+    switch (result) {
+      case Ok<VerifyOtpResponseModel>():
+        _isLoading = false;
+        resetToken = result.value.data.token;
+
+        Navigator.push(
+          context,
+          MaterialPageRoute(builder: (_) => const ForgotPasswordCreateScreen()),
+        );
+        break;
+
+      case Error<VerifyOtpResponseModel>():
+        _isLoading = false;
+        _errorMessage = result.error.toString();
+        break;
+    }
+    notifyListeners();
+    _errorMessage = null;
+    notifyListeners();
+  }
+
   @override
   void dispose() {
     usernameController.dispose();