From efe2c333a8e2a01ec009e1c4b8c0960b11dea120 Mon Sep 17 00:00:00 2001
From: Kadir Sekha <sekhakadir@gmail.com>
Date: Wed, 3 Jan 2018 14:41:59 +0000
Subject: [PATCH] implemented appropriate send max button for shapeshift

---
 src/js/controllers/amount.js | 17 ++++++++++++++++-
 www/views/amount.html        |  4 ++--
 2 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/src/js/controllers/amount.js b/src/js/controllers/amount.js
index f6e94eca1..c9cdca5ec 100644
--- a/src/js/controllers/amount.js
+++ b/src/js/controllers/amount.js
@@ -395,7 +395,6 @@ angular.module('copayApp.controllers').controller('amountController', function($
     }
 
     if ($scope.nextStep) {
-
       $state.transitionTo($scope.nextStep, {
         id: _id,
         amount: $scope.useSendMax ? null : _amount,
@@ -428,6 +427,22 @@ angular.module('copayApp.controllers').controller('amountController', function($
         shapeshiftOrderUrl += $scope.shapeshiftOrderId;
         confirmData.description = shapeshiftOrderUrl;
         confirmData.fromWalletId = $scope.fromWalletId;
+
+        if (confirmData.useSendMax) {
+          var wallet = lodash.find(profileService.getWallets({ coin: coin }),
+            function(w) {
+              return w.id == $scope.fromWalletId;
+            });
+
+          var balance = parseFloat(wallet.cachedBalance.substring(0, wallet.cachedBalance.length-4));
+          if (balance < $scope.minShapeshiftAmount * 1.04) {
+            confirmData.useSendMax = false;
+            confirmData.toAmount = $scope.minShapeshiftAmount * unitToSatoshi;
+          } else if (balance > $scope.maxShapeshiftAmount) {
+            confirmData.useSendMax = false;
+            confirmData.toAmount = $scope.maxShapeshiftAmount * unitToSatoshi * 0.99;
+          }
+        }
       }
 
       $state.transitionTo('tabs.send.confirm', confirmData);
diff --git a/www/views/amount.html b/www/views/amount.html
index 160044dec..8fc00145d 100644
--- a/www/views/amount.html
+++ b/www/views/amount.html
@@ -49,7 +49,7 @@
           <div class="amount__result-equiv">&asymp; {{alternativeAmount || '0.00'}} {{alternativeUnit}}</div>
         </div>
         <div>
-          <button class="button button-sendmax" ng-if="!shapeshiftOrderId" ng-click="sendMax()">
+          <button class="button button-sendmax" ng-click="sendMax()">
             <span>
               <i class="icon ion-ios-speedometer-outline"></i>&emsp;
               <span translate>Send max amount</span>
@@ -74,7 +74,7 @@
         <span>&asymp; {{alternativeAmount || '0.00'}} {{alternativeUnit}}</span>
       </div>
       <div>
-        <button class="button button-sendmax" ng-if="!shapeshiftOrderId" ng-click="sendMax()">
+        <button class="button button-sendmax" ng-click="sendMax()">
           <span>
             <i class="icon ion-ios-speedometer-outline"></i>&emsp;
             <span translate>Send max amount</span>