Implement OTP generation and email verification logic in UserService

src/user/services/user.service.ts

@@ -226,7 +226,15 @@ export class UserService {
 
     if (userWithEmail) {
       if (userWithEmail.id === userId) {
-        return;
+        this.logger.log(`Generating OTP for current email ${email} for user ${userId}`);
+        await this.userRepository.update(userId, { isEmailVerified: false });
+        
+        return this.otpService.generateAndSendOtp({
+          userId,
+          recipient: email,
+          otpType: OtpType.EMAIL,
+          scope: OtpScope.VERIFY_EMAIL,
+        });
       }
 
       this.logger.error(`Email ${email} is already taken by another user`);