Adds limits 500usd per day per user

src/js/controllers/buyAmazon.js

@@ -6,10 +6,10 @@ angular.module('copayApp.controllers').controller('buyAmazonController',
     window.ignoreMobilePause = true;
     var self = this;
     var fc;
-    var minimumAmount = 1;
+    var minimumAmount = 5;
     var stepAmount = 1;
-    var multiplierAmount = 2;
+    var multiplierAmount = 5;
-    var maximumAmount = 10;
+    var maximumAmount = 500;
 
     var otherWallets = function(network) {
       return lodash.filter(profileService.getWallets(network), function(w) {
@@ -26,7 +26,7 @@ angular.module('copayApp.controllers').controller('buyAmazonController',
     };
 
     this.init = function() {
-      $scope.fiat = minimumAmount * multiplierAmount;
+      $scope.fiat = minimumAmount;
       var network = configService.getSync().amazon.testnet ? 'testnet' : 'livenet';
       amazonService.setCredentials(network);
       self.otherWallets = otherWallets(network);
@@ -99,7 +99,7 @@ angular.module('copayApp.controllers').controller('buyAmazonController',
       if (plus && $scope.fiat < maximumAmount ) {
         stepAmount = stepAmount + 1;
         $scope.fiat = stepAmount * multiplierAmount;
-      } else if (!plus && $scope.fiat > minimumAmount * multiplierAmount) {
+      } else if (!plus && $scope.fiat > minimumAmount) {
         stepAmount = stepAmount - 1;
         $scope.fiat = stepAmount * multiplierAmount;
       }
@@ -126,7 +126,7 @@ angular.module('copayApp.controllers').controller('buyAmazonController',
         amazonService.createBitPayInvoice(dataSrc, function(err, data) {
           if (err) {
             self.loading = null;
-            self.error = err;
+            self.error = bwsError.msg(err);
             return;
           }
 
@@ -185,6 +185,7 @@ angular.module('copayApp.controllers').controller('buyAmazonController',
                       self.errorInfo = gift;
                       return;
                     }
+                    amazonService.setAmountByDay(dataSrc.price);
                     self.giftCard = giftCard;
                     $timeout(function() {
                       $scope.$digest();

src/js/services/amazonService.js

@@ -3,6 +3,7 @@
 angular.module('copayApp.services').factory('amazonService', function($http, $log, lodash, moment, storageService, configService) {
   var root = {};
   var credentials = {};
+  var LIMIT = 500;
 
   root.setCredentials = function(network) {
     credentials.AMAZON_SANDBOX = network == 'testnet' ? true : false;
@@ -28,6 +29,50 @@ angular.module('copayApp.services').factory('amazonService', function($http, $lo
     };
   };
 
+  var _checkLimit = function(amount, cb) {
+    var network = configService.getSync().amazon.testnet ? 'testnet' : 'livenet';
+    var dateStamp = moment.utc().format('YYYY-MM-DD');
+    storageService.getAmazonLimits(network, function(err, limits) {
+      if (err) $log.error(err);
+      
+      if (lodash.isEmpty(limits) && amount <= LIMIT) return cb();
+      if (lodash.isEmpty(limits) || amount > LIMIT) return cb('EXCEEDED_DAYLY_LIMIT');
+      
+      if (lodash.isString(limits)) {
+        limits = JSON.parse(limits);
+      }
+
+      if (limits.date == dateStamp && (limits.amount + amount) > LIMIT)
+        return cb('EXCEEDED_DAYLY_LIMIT');
+
+      return cb();
+    });
+  };
+
+  root.setAmountByDay = function(amount) {
+    var network = configService.getSync().amazon.testnet ? 'testnet' : 'livenet';
+    var dateStamp = moment.utc().format('YYYY-MM-DD');
+    storageService.getAmazonLimits(network, function(err, limits) {
+      if (err) $log.error(err);
+      
+      if (lodash.isEmpty(limits)) limits = { date: dateStamp, amount: 0 };
+      
+      if (lodash.isString(limits)) {
+        limits = JSON.parse(limits);
+      }
+
+      if (limits.date == dateStamp) {
+        limits.amount = limits.amount + amount;
+      } else {
+        limits = { date: dateStamp, amount: amount };
+      }
+      limits = JSON.stringify(limits);
+      storageService.setAmazonLimits(network, limits, function(err) {
+        if (err) $log.error(err);
+      });
+    });
+  };
+
   var _getSignatureKey = function() {
 
     var key = credentials.AMAZON_SECRET_KEY;
@@ -116,6 +161,8 @@ angular.module('copayApp.services').factory('amazonService', function($http, $lo
       price: data.price,
       currency: data.currency
     };
+    _checkLimit(data.price, function(err) {
+      if (err) return cb(err);
       $http(_postBitPay('/invoices', data)).then(function(data) {
         $log.info('BitPay Create Invoice: SUCCESS');
         return cb(null, data.data); 
@@ -123,6 +170,7 @@ angular.module('copayApp.services').factory('amazonService', function($http, $lo
         $log.error('BitPay Create Invoice: ERROR ' + data.data.error);
         return cb(data.data.error);
       });
+    });
   };
 
   root.getBitPayInvoice = function(id, cb) {

src/js/services/bwcError.js

@@ -139,6 +139,9 @@ angular.module('copayApp.services')
           case 'PASSWORD_INCORRECT':
             body = gettextCatalog.getString('Wrong spending password');
             break;
+          case 'EXCEEDED_DAYLY_LIMIT':
+            body = gettextCatalog.getString('Exceeded dayly limit of $500 per user');
+            break;
           case 'ERROR':
             body = (err.message || err.error);
             break;

src/js/services/storageService.js

@@ -330,5 +330,17 @@ angular.module('copayApp.services')
       storage.remove('amazonGiftCards-' + network, cb);
     };
 
+    root.setAmazonLimits = function(network, limits, cb) {
+      storage.set('amazonLimits-' + network, limits, cb);
+    };
+
+    root.getAmazonLimits = function(network, cb) {
+      storage.get('amazonLimits-' + network, cb);
+    };
+
+    root.removeAmazonLimits = function(network, cb) {
+      storage.remove('amazonLimits-' + network, cb);
+    };
+
     return root;
   });