From 505951a0b11c7f647f8ab225801a6ef95883e6e5 Mon Sep 17 00:00:00 2001
From: Ivan Socolsky <jungans@gmail.com>
Date: Thu, 6 Nov 2014 11:34:52 -0300
Subject: [PATCH] replaced old rate service as angular controller

---
 js/models/RateService.js |  5 ++-
 js/services/rate.js      | 86 ++--------------------------------------
 2 files changed, 8 insertions(+), 83 deletions(-)

diff --git a/js/models/RateService.js b/js/models/RateService.js
index 048acb7dd..7c952f3b3 100644
--- a/js/models/RateService.js
+++ b/js/models/RateService.js
@@ -13,6 +13,9 @@ var request = require('request');
 var RateService = function(opts) {
   var self = this;
 
+  opts = opts || {};
+  self.request = opts.request || request;
+
   self.SAT_TO_BTC = 1 / 1e8;
   self.BTC_TO_SAT = 1e8;
   self.UNAVAILABLE_ERROR = 'Service is not available - check for service.isAvailable() or use service.whenAvailable()';
@@ -44,7 +47,7 @@ RateService.prototype._fetchCurrencies = function() {
   var updateFrequencySeconds = 3600;
   var rateServiceUrl = 'https://bitpay.com/api/rates';
 
-  request.get({
+  self.request.get({
     url: rateServiceUrl,
     json: true
   }, function(err, res, body) {
diff --git a/js/services/rate.js b/js/services/rate.js
index 6599905c1..cbfeb2726 100644
--- a/js/services/rate.js
+++ b/js/services/rate.js
@@ -1,85 +1,7 @@
 'use strict';
 
-var MINS_IN_HOUR = 60;
-var MILLIS_IN_SECOND = 1000;
-
-var RateService = function(request) {
-  this.isAvailable = false;
-  this.UNAVAILABLE_ERROR = 'Service is not available - check for service.isAvailable or use service.whenAvailable';
-  this.SAT_TO_BTC = 1 / 1e8;
-  this.BTC_TO_SAT = 1e8;
-  var rateServiceConfig = config.rate;
-  var updateFrequencySeconds = rateServiceConfig.updateFrequencySeconds || 60 * MINS_IN_HOUR;
-  var rateServiceUrl = rateServiceConfig.url || 'https://bitpay.com/api/rates';
-  this.queued = [];
-  this.alternatives = [];
-  var self = this;
-  var backoffSeconds = 5;
-  var retrieve = function() {
-    request.get({
-      url: rateServiceUrl,
-      json: true
-    }, function(err, response, listOfCurrencies) {
-      if (err) {
-        backoffSeconds *= 1.5;
-        setTimeout(retrieve, backoffSeconds * MILLIS_IN_SECOND);
-        return;
-      }
-      var rates = {};
-      listOfCurrencies.forEach(function(element) {
-        rates[element.code] = element.rate;
-        self.alternatives.push({
-          name: element.name,
-          isoCode: element.code,
-          rate: element.rate
-        });
-      });
-      self.isAvailable = true;
-      self.rates = rates;
-      self.queued.forEach(function(callback) {
-        setTimeout(callback, 1);
-      });
-      setTimeout(retrieve, updateFrequencySeconds * MILLIS_IN_SECOND);
-    });
-  };
-  retrieve();
-};
-
-RateService.prototype.whenAvailable = function(callback) {
-  if (this.isAvailable) {
-    setTimeout(callback, 1);
-  } else {
-    this.queued.push(callback);
-  }
-};
-
-RateService.prototype.toFiat = function(satoshis, code) {
-  if (!this.isAvailable) {
-    throw new Error(this.UNAVAILABLE_ERROR);
-  }
-  return satoshis * this.SAT_TO_BTC * this.rates[code];
-};
-
-RateService.prototype.fromFiat = function(amount, code) {
-  if (!this.isAvailable) {
-    throw new Error(this.UNAVAILABLE_ERROR);
-  }
-  return amount / this.rates[code] * this.BTC_TO_SAT;
-};
-
-RateService.prototype.listAlternatives = function() {
-  if (!this.isAvailable) {
-    throw new Error(this.UNAVAILABLE_ERROR);
-  }
-
-  var alts = [];
-  this.alternatives.forEach(function(element) {
-    alts.push({
-      name: element.name,
-      isoCode: element.isoCode
-    });
+angular.module('copayApp.services').factory('rateService', function(request) {
+  return copay.RateService.singleton({
+    request: request
   });
-  return alts;
-};
-
-angular.module('copayApp.services').service('rateService', RateService);
+});