perubahan denomuretor on pos sale

lib/Screens/Customers/add_customer.dart

@@ -55,6 +55,18 @@ class _AddPartyState extends State<AddParty> {
   final GlobalKey<FormState> _formKay = GlobalKey();
   FocusNode focusNode = FocusNode();
 
+  /// Normalizes Indonesian phone numbers to local format (0xx...)
+  /// Handles: +6289..., 6289..., 0896.2792.1934, spaces, etc.
+  String _normalizePhone(String input) {
+    // Remove all non-digit characters (dots, spaces, dashes, +)
+    String digits = input.replaceAll(RegExp(r'[^\d]'), '');
+    // Strip country code: +62 or 62 at the start
+    if (digits.startsWith('62')) {
+      digits = '0' + digits.substring(2);
+    }
+    return digits;
+  }
+
   List<Country> _countries = [];
   Country? _selectedBillingCountry;
   Country? _selectedShippingCountry;
@@ -152,11 +164,39 @@ class _AddPartyState extends State<AddParty> {
                   TextFormField(
                     controller: phoneController,
                     keyboardType: TextInputType.phone,
-                    inputFormatters: [FilteringTextInputFormatter.digitsOnly],
+                    onChanged: (value) {
+                      final normalized = _normalizePhone(value);
+                      if (normalized != value) {
+                        phoneController.value = TextEditingValue(
+                          text: normalized,
+                          selection: TextSelection.collapsed(offset: normalized.length),
+                        );
+                      }
+                    },
                     validator: (value) {
                       if (value == null || value.isEmpty) {
                         return lang.S.of(context).pleaseEnterAValidPhoneNumber;
                       }
+                      final digits = value.replaceAll(RegExp(r'[^\d]'), '');
+                      if (digits.length < 11 || digits.length > 13) {
+                        // Show popup after frame
+                        WidgetsBinding.instance.addPostFrameCallback((_) {
+                          showDialog(
+                            context: context,
+                            builder: (ctx) => AlertDialog(
+                              title: Text('Invalid Phone Number'),
+                              content: Text('Phone number must be between 11 and 13 digits.'),
+                              actions: [
+                                TextButton(
+                                  onPressed: () => Navigator.of(ctx).pop(),
+                                  child: Text('OK'),
+                                ),
+                              ],
+                            ),
+                          );
+                        });
+                        return 'Invalid length';
+                      }
                       return null;
                     },
                     decoration: InputDecoration(
@@ -878,6 +918,28 @@ class _AddPartyState extends State<AddParty> {
                         return;
                       }
 
+                      // Validate phone number length (11-13 digits)
+                      final phoneDigits = phoneController.text.replaceAll(RegExp(r'[^\d]'), '');
+                      if (phoneDigits.isNotEmpty && (phoneDigits.length < 11 || phoneDigits.length > 13)) {
+                        await showDialog(
+                          context: context,
+                          builder: (ctx) => AlertDialog(
+                            title: const Text('Invalid Number'),
+                            content: const Text(
+                              'Phone number must be between 11 and 13 digits.\n'
+                              'Example: 08123456789 (11 digits) or 081234567890 (12 digits).',
+                            ),
+                            actions: [
+                              TextButton(
+                                onPressed: () => Navigator.of(ctx).pop(),
+                                child: const Text('OK'),
+                              ),
+                            ],
+                          ),
+                        );
+                        return;
+                      }
+
                       num parseOrZero(String? input) {
                         if (input == null || input.isEmpty) return 0;
                         return num.tryParse(input) ?? 0;