bug fixes for api error messages

lib/modules/signup/providers/signup_provider.dart

@@ -56,6 +56,15 @@ class SignUpProvider extends ChangeNotifier {
 
       if (response.statusCode >= 200 && response.statusCode < 300) {
         final data = json.decode(response.body);
+
+        // Check if data is null (employee not found case)
+        if (data['data'] == null) {
+          _errorMessage = data['message'];
+          loading = false;
+          notifyListeners();
+          return null;
+        }
+
         _employeeData = EmployeeERPModel.fromJson(data['data']);
 
         loading = false;
@@ -63,13 +72,13 @@ class SignUpProvider extends ChangeNotifier {
         return _employeeData;
       } else {
         final data = json.decode(response.body);
-        _errorMessage = data['message'] ?? 'Failed to fetch employee details';
+        _errorMessage = data['message'];
         loading = false;
         notifyListeners();
         return null;
       }
     } catch (error) {
-      _errorMessage = 'Failed to fetch employee details';
+      _errorMessage = error.toString();
       loading = false;
       notifyListeners();
       return null;
@@ -94,19 +103,19 @@ class SignUpProvider extends ChangeNotifier {
 
       if (response.statusCode >= 200 && response.statusCode < 300) {
         final data = json.decode(response.body);
-        _successMessage = data['message'] ?? 'Your signup request has been submitted successfully.';
+        _successMessage = data['message'];
         loading = false;
         notifyListeners();
         return true;
       } else {
         final data = json.decode(response.body);
-        _errorMessage = data['message'] ?? 'Failed to submit signup request';
+        _errorMessage = data['message'];
         loading = false;
         notifyListeners();
         return false;
       }
     } catch (error) {
-      _errorMessage = 'Failed to submit signup request';
+      _errorMessage = error.toString();
       loading = false;
       notifyListeners();
       return false;
@@ -139,13 +148,13 @@ class SignUpProvider extends ChangeNotifier {
         return _sites;
       } else {
         final data = json.decode(response.body);
-        _errorMessage = data['message'] ?? 'Failed to fetch sites';
+        _errorMessage = data['message'];
         loading = false;
         notifyListeners();
         return [];
       }
     } catch (error) {
-      _errorMessage = 'Failed to fetch sites';
+      _errorMessage = error.toString();
       loading = false;
       notifyListeners();
       return [];
@@ -179,13 +188,13 @@ class SignUpProvider extends ChangeNotifier {
         return _departments;
       } else {
         final data = json.decode(response.body);
-        _errorMessage = data['message'] ?? 'Failed to fetch departments';
+        _errorMessage = data['message'];
         loading = false;
         notifyListeners();
         return [];
       }
     } catch (error) {
-      _errorMessage = 'Failed to fetch departments';
+      _errorMessage = error.toString();
       loading = false;
       notifyListeners();
       return [];

lib/modules/signup/screens/signup_screen.dart

@@ -441,20 +441,24 @@ class _SignUpScreenState extends State<SignUpScreen> {
           _employeeFetched = false;
           _employeeERPData = null;
         });
+        if (_signUpProvider.errorMessage != null) {
           Fluttertoast.showToast(
-          msg: _signUpProvider.errorMessage ?? "Failed to fetch employee details",
+            msg: _signUpProvider.errorMessage!,
           );
         }
       }
     }
+  }
 
   void _showDuplicateAccountDialog() {
+    final errorMessage = _signUpProvider.errorMessage ?? "Already you have an account on Atoms";
+
     showDialog(
       context: context,
       builder: (context) => AlertDialog(
         backgroundColor: AppColor.background(context),
         title: "Account Exists".bodyText(context),
-        content: "Already you have an account on Atoms".bodyText(context),
+        content: errorMessage.bodyText(context),
         actions: [
           TextButton(
             onPressed: () {
@@ -631,11 +635,13 @@ class _SignUpScreenState extends State<SignUpScreen> {
         _showSuccessDialog();
       }
     } else {
+      if (_signUpProvider.errorMessage != null) {
         Fluttertoast.showToast(
-        msg: _signUpProvider.errorMessage ?? "Failed to submit signup request",
+          msg: _signUpProvider.errorMessage!,
         );
       }
     }
+  }
 
   void _showSuccessDialog() {
     final successMessage = _signUpProvider.successMessage ?? 'Your signup request has been submitted successfully';

lib/modules/site_request_module/screens/site_request_history_screen.dart

@@ -179,6 +179,7 @@ class _SiteRequestHistoryScreenState extends State<SiteRequestHistoryScreen> {
 
   Widget _buildUserInfo(SiteRequestModel request) {
     return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
       children: [
         InfoTextWidget(label: "Full Name", value: request.fullName),
         InfoTextWidget(label: "Employee ID", value: request.employeeId),