From fcc7f555ef902f0024b5c73f3a7fbbaa67dbcb5d Mon Sep 17 00:00:00 2001
From: George Lima <georgelima11@hotmail.com>
Date: Mon, 18 Mar 2019 11:15:05 -0300
Subject: [PATCH] fix(send): fix maxAmount button

---
 app/views/send.js | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/app/views/send.js b/app/views/send.js
index a1c6855..d719d0d 100644
--- a/app/views/send.js
+++ b/app/views/send.js
@@ -449,6 +449,15 @@ class Component extends PureComponent<Props, State> {
     return new BigNumber(amount).plus(feeValue).toNumber();
   };
 
+  getMaxAmountWithoutFee = () => {
+    const { balance } = this.props;
+    const { fee } = this.state;
+
+    const max = new BigNumber(balance).minus(fee || 0);
+
+    return max.isNegative() ? 0 : max.toNumber();
+  };
+
   handleChange = (field: string) => (value: string | number) => {
     const { validateAddress, getAddressBalance, balance } = this.props;
     const { amount } = this.state;
@@ -752,7 +761,7 @@ class Component extends PureComponent<Props, State> {
             <AmountInput
               renderRight={() => (
                 <MaxAvailableAmount
-                  onClick={() => this.handleChange('amount')(balance - (Number(fee) || 0))}
+                  onClick={() => this.handleChange('amount')(this.getMaxAmountWithoutFee())}
                   disabled={!from}
                 >
                   <MaxAvailableAmountImg src={arrowUpIcon} />