From 23cbc18649d078ffdf52d2b15223d8667099c6ea Mon Sep 17 00:00:00 2001
From: Yasien Mac Mini <yasienmeth@gmail.com>
Date: Mon, 9 Jun 2025 12:24:40 +0200
Subject: [PATCH] add number validation

---
 .../lib/mih_apis/mih_validation_services.dart | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/Frontend/lib/mih_apis/mih_validation_services.dart b/Frontend/lib/mih_apis/mih_validation_services.dart
index 47601075..36595cee 100644
--- a/Frontend/lib/mih_apis/mih_validation_services.dart
+++ b/Frontend/lib/mih_apis/mih_validation_services.dart
@@ -54,6 +54,27 @@ class MihValidationServices {
     return "Let's create a great username for you!$errorMessage";
   }
 
+  String? validateNumber(String? number, int? minValue, int? maxValue) {
+    String? errorMessage = "";
+    if (number == null || number.isEmpty) {
+      errorMessage += "This field is required";
+      return errorMessage;
+    }
+    int? value = int.tryParse(number);
+    if (value == null) {
+      errorMessage += "Please enter a valid number";
+      return errorMessage;
+    }
+    if (value < (minValue ?? 0)) {
+      errorMessage += "Value must be >= ${minValue ?? 0}";
+    }
+    if (maxValue != null && value > maxValue) {
+      if (errorMessage.isNotEmpty) errorMessage += "\n";
+      errorMessage += "Value must be <= $maxValue";
+    }
+    return errorMessage.isEmpty ? null : errorMessage;
+  }
+
   String? validatePassword(String? password) {
     String? errorMessage = "";
     if (password == null || password.isEmpty) {