Allow deleting templates

lib/ui/widgets/add_transaction.dart

@@ -4,6 +4,7 @@ import 'package:get_it/get_it.dart';
 import 'package:okane/database/collections/account.dart';
 import 'package:okane/database/collections/beneficiary.dart';
 import 'package:okane/database/collections/expense_category.dart';
+import 'package:okane/database/collections/template.dart';
 import 'package:okane/database/collections/transaction.dart';
 import 'package:okane/database/database.dart';
 import 'package:okane/ui/state/core.dart';
@@ -12,13 +13,18 @@ import 'package:okane/ui/utils.dart';
 import 'package:okane/ui/widgets/add_expense_category.dart';
 import 'package:searchfield/searchfield.dart';
 
+typedef AddTransactionCallback = void Function(Transaction);
+
 class AddTransactionWidget extends StatefulWidget {
-  final VoidCallback onAdd;
+  final AddTransactionCallback onAdd;
 
   final Account activeAccountItem;
 
+  final TransactionTemplate? template;
+
   const AddTransactionWidget({
     super.key,
+    this.template,
     required this.activeAccountItem,
     required this.onAdd,
   });
@@ -38,7 +44,26 @@ class _AddTransactionWidgetState extends State<AddTransactionWidget> {
 
   TransactionDirection _selectedDirection = TransactionDirection.send;
 
-  ExpenseCategory? _expenseCategory = null;
+  ExpenseCategory? _expenseCategory;
+
+  @override
+  void initState() {
+    super.initState();
+
+    if (widget.template != null) {
+      _selectedDirection =
+          widget.template!.amount > 0
+              ? TransactionDirection.receive
+              : TransactionDirection.send;
+      _amountTextController.text = widget.template!.amount.toString();
+      _beneficiaryTextController.text =
+          widget.template!.beneficiary.value!.name;
+      _selectedBeneficiary = SearchFieldListItem(
+        getBeneficiaryName(widget.template!.beneficiary.value!),
+        item: widget.template!.beneficiary.value!,
+      );
+    }
+  }
 
   String getBeneficiaryName(Beneficiary item) {
     return switch (item.type) {
@@ -122,7 +147,7 @@ class _AddTransactionWidgetState extends State<AddTransactionWidget> {
       await upsertTransaction(otherTransaction);
     }
 
-    widget.onAdd();
+    widget.onAdd(transaction);
   }
 
   @override