From 885310395e1d2465941a8ecd34091323eb98b00c Mon Sep 17 00:00:00 2001
From: julian <julian@cypherstack.com>
Date: Thu, 8 Jun 2023 14:10:08 -0600
Subject: [PATCH] fix: banano prepareSend int overflow

---
 lib/services/coins/banano/banano_wallet.dart | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/lib/services/coins/banano/banano_wallet.dart b/lib/services/coins/banano/banano_wallet.dart
index cfc6bb22c..1240ac446 100644
--- a/lib/services/coins/banano/banano_wallet.dart
+++ b/lib/services/coins/banano/banano_wallet.dart
@@ -668,20 +668,14 @@ class BananoWallet extends CoinServiceAPI
     Map<String, dynamic>? args,
   }) async {
     try {
-      int satAmount = amount.raw.toInt();
-      int realfee = 0;
-
-      if (balance.spendable == amount) {
-        satAmount = balance.spendable.raw.toInt() - realfee;
+      if (amount.decimals != coin.decimals) {
+        throw ArgumentError("Banano prepareSend attempted with invalid Amount");
       }
 
       Map<String, dynamic> txData = {
-        "fee": realfee,
+        "fee": 0,
         "addresss": address,
-        "recipientAmt": Amount(
-          rawValue: BigInt.from(satAmount),
-          fractionDigits: coin.decimals,
-        ),
+        "recipientAmt": amount,
       };
 
       Logging.instance.log("prepare send: $txData", level: LogLevel.Info);