fix recurrent spendings

lib/widgets/recurring_template_sheet.dart

@@ -12,13 +12,16 @@ import '../providers/tx_meta_provider.dart';
 import '../utils/helpers.dart';
 import '../utils/look_ahead.dart';
 
-Future<void> showCreateRecurringTemplateSheet(BuildContext context) {
+Future<void> showCreateRecurringTemplateSheet(
+  BuildContext context, {
+  BankTransaction? initialTx,
+}) {
   return showModalBottomSheet<void>(
     context: context,
     isScrollControlled: true,
     useSafeArea: true,
     showDragHandle: true,
-    builder: (context) => const _RecurringTemplateSheet(),
+    builder: (context) => _RecurringTemplateSheet(initialTx: initialTx),
   );
 }
 
@@ -36,9 +39,10 @@ Future<void> showEditRecurringTemplateSheet(
 }
 
 class _RecurringTemplateSheet extends StatefulWidget {
-  const _RecurringTemplateSheet({this.existing});
+  const _RecurringTemplateSheet({this.existing, this.initialTx});
 
   final RecurringTemplate? existing;
+  final BankTransaction? initialTx;
 
   @override
   State<_RecurringTemplateSheet> createState() =>
@@ -71,15 +75,28 @@ class _RecurringTemplateSheetState extends State<_RecurringTemplateSheet> {
     _labelId = existing?.labelId;
     _currency = existing?.currency ?? 'EUR';
 
-    if (existing?.sourceTxId != null) {
+    BankTransaction? seed = widget.initialTx;
+    if (seed == null && existing?.sourceTxId != null) {
       final txs = context.read<BankController>().transactions;
       for (final tx in txs) {
         if (tx.id == existing!.sourceTxId) {
-          _pickedTx = tx;
+          seed = tx;
           break;
         }
       }
     }
+    if (seed != null) {
+      _pickedTx = seed;
+      _currency = seed.currency;
+      _source = RecurringTemplateSource.transaction;
+      if (_nameController.text.trim().isEmpty) {
+        _nameController.text = seed.description;
+      }
+      if (existing == null) {
+        _dayController.text =
+            '${(DateTime.tryParse(seed.date)?.day ?? 1).clamp(1, 28)}';
+      }
+    }
   }
 
   @override
@@ -252,7 +269,9 @@ class _RecurringTemplateSheetState extends State<_RecurringTemplateSheet> {
           crossAxisAlignment: CrossAxisAlignment.stretch,
           children: [
             Text(
-              widget.existing == null ? 'New recurring template' : 'Edit template',
+              widget.existing == null
+                  ? 'New recurring spending'
+                  : 'Edit recurring spending',
               style: theme.textTheme.titleLarge,
             ),
             const SizedBox(height: 16),