Improved category with colors

lib/repositories/account/account_repository.dart

@@ -9,6 +9,7 @@ import 'package:tunas/repositories/account/models/transaction.dart';
 
 class AccountRepository {
   String accountFile = 'tunas_main_account.json';
+  Account? currentAccount;
 
   final StorageClient _storageClient;
 
@@ -49,20 +50,27 @@ class AccountRepository {
 
   saveAccount(Account account) async {
     await _storageClient.save(accountFile, jsonEncode(account.toJson()));
+    _broadcastAccountData(account);
   }
 
   saveTransactions(List<Transaction> transactions) async {
-    final account = Account(transactions: transactions);
-    await saveAccount(account);
-    _transactionsController.add(account.transactions);
-    _categoriesController.add(account.categories);
-    _budgetController.add(account.budgets);
+    Account? account = currentAccount;
+    if (account == null) {
+      throw Error();
+    } else {account.transactions = transactions;
+      await saveAccount(account);
+    }
   }
 
   deleteAccount() async {
     await _storageClient.delete(accountFile);
-    _transactionsController.add(const []);
-    _categoriesController.add(const []);
-    _budgetController.add(const []);
+    _broadcastAccountData(Account());
+  }
+
+  _broadcastAccountData(Account account) {
+    currentAccount = account;
+    _transactionsController.add(account.transactions);
+    _categoriesController.add(account.categories);
+    _budgetController.add(account.budgets);
   }
 }

lib/repositories/account/models/category.dart

@@ -1,3 +1,5 @@
+import 'dart:ui';
+
 class Category {
   String label;
   String color;
@@ -18,4 +20,8 @@ class Category {
     'label': label,
     'color': color,
   };
+
+  Color rgbToColor() {
+    return Color(int.parse(color.toUpperCase().replaceAll("#", ""), radix: 16));
+  }
 }