PM Scheme craete done

lib/features/cheque/screens/positive_pay_screen.dart

@@ -30,6 +30,8 @@ class _PositivePayScreenState extends State<PositivePayScreen> {
   final _amountController = TextEditingController();
   final _payeeController = TextEditingController();
   final _chequeService = getIt<ChequeService>();
+  String? _ciFromCheque;
+  String? _ciToCheque;
 
   @override
   void initState() {
@@ -53,6 +55,53 @@ class _PositivePayScreenState extends State<PositivePayScreen> {
         _selectedAccount = _filteredUsers.first;
       }
     }
+    _loadChequeDetails();
+  }
+
+  Future<void> _loadChequeDetails() async {
+    if (_selectedAccount == null) return;
+
+    String instrType;
+    switch (_selectedAccount!.accountType) {
+      case 'SA':
+      case 'SB':
+        instrType = '10';
+        break;
+      case 'CA':
+        instrType = '11';
+        break;
+      case 'CC':
+        instrType = '13';
+        break;
+      default:
+        instrType = '10';
+    }
+
+    try {
+      final data = await _chequeService.ChequeEnquiry(
+        accountNumber: _selectedAccount!.accountNo!,
+        instrType: instrType,
+      );
+      final ciCheque = data.where((cheque) => cheque.type == 'CI').toList();
+      if (mounted) {
+        setState(() {
+          if (ciCheque.isNotEmpty) {
+            _ciFromCheque = ciCheque.first.fromCheque;
+            _ciToCheque = ciCheque.first.toCheque;
+          } else {
+            _ciFromCheque = null;
+            _ciToCheque = null;
+          }
+        });
+      }
+    } catch (e) {
+      if (mounted) {
+        setState(() {
+          _ciFromCheque = null;
+          _ciToCheque = null;
+        });
+      }
+    }
   }
 
   @override
@@ -123,6 +172,7 @@ Future<void> _showResponseDialog(String title, String message) async {
                 onChanged: (User? newUser) {
                   setState(() {
                     _selectedAccount = newUser;
+                    _loadChequeDetails();
                   });
                 },
                 validator: (value) {
@@ -138,12 +188,25 @@ Future<void> _showResponseDialog(String title, String message) async {
                 decoration: InputDecoration(
                   labelText: AppLocalizations.of(context).chequeNumberLabel,
                   border: const OutlineInputBorder(),
+                  errorMaxLines: 2,
                 ),
                 keyboardType: TextInputType.number,
                 validator: (value) {
                   if (value == null || value.isEmpty) {
                     return AppLocalizations.of(context).pleaseEnterChequeNumber;
                   }
+                  final chequeNumber = int.tryParse(value);
+                  final fromCheque = int.tryParse(_ciFromCheque ?? '');
+                  final toCheque = int.tryParse(_ciToCheque ?? '');
+                  if (chequeNumber == null) {
+                    return AppLocalizations.of(context).invalidChequeNumberFormatError;
+                  }
+                  if (fromCheque != null && toCheque != null) {
+                    if (chequeNumber < fromCheque || chequeNumber > toCheque) {
+                      return AppLocalizations.of(context).chequeNumberRangeError(
+                          _ciFromCheque!, _ciToCheque!);
+                    }
+                  }
                   return null;
                 },
               ),