balance Service

js/services/balanceService.js

@@ -0,0 +1,84 @@
+'use strict';
+var bitcore = require('bitcore');
+
+angular.module('copayApp.services')
+  .factory('balanceService', function($rootScope, $sce, $location, $filter, notification, $timeout, rateService) {
+    var root = {};
+    var _balanceCache = {};
+    root.clearBalanceCache = function(w) {
+      delete _balanceCache[w.getId()];
+    };
+
+    root._fetchBalance = function(w, cb) {
+      cb = cb || function() {};
+      var satToUnit = 1 / w.settings.unitToSatoshi;
+      var COIN = bitcore.util.COIN;
+
+      console.log('[balanceS.js.257] FETCH BALANCE: ', w.getName()); //TODO
+      w.getBalance(function(err, balanceSat, balanceByAddrSat, safeBalanceSat, safeUnspentCount) {
+        if (err) return cb(err);
+
+        var r = {};
+        r.totalBalance = balanceSat * satToUnit;
+        r.totalBalanceBTC = (balanceSat / COIN);
+        r.availableBalance = safeBalanceSat * satToUnit;
+        r.availableBalanceBTC = (safeBalanceSat / COIN);
+        r.safeUnspentCount = safeUnspentCount;
+
+        r.lockedBalance = (balanceSat - safeBalanceSat) * satToUnit;
+        r.lockedBalanceBTC = (balanceSat - safeBalanceSat) / COIN;
+
+
+        if (r.safeUnspentCount) {
+          var estimatedFee = copay.Wallet.estimatedFee(r.safeUnspentCount);
+          r.topAmount = (((r.availableBalance * w.settings.unitToSatoshi).toFixed(0) - estimatedFee) / w.settings.unitToSatoshi);
+        }
+
+        var balanceByAddr = {};
+        for (var ii in balanceByAddrSat) {
+          balanceByAddr[ii] = balanceByAddrSat[ii] * satToUnit;
+        }
+        r.balanceByAddr = balanceByAddr;
+
+        if (rateService.isAvailable()) {
+          r.totalBalanceAlternative = rateService.toFiat(balanceSat, w.settings.alternativeIsoCode);
+          r.alternativeIsoCode = w.settings.alternativeIsoCode;
+          r.lockedBalanceAlternative = rateService.toFiat(balanceSat - safeBalanceSat, w.settings.alternativeIsoCode);
+          r.alternativeConversionRate = rateService.toFiat(100000000, w.settings.alternativeIsoCode);
+          r.alternativeBalanceAvailable = true;
+        };
+
+        r.updatingBalance = false;
+
+        return cb(null, r)
+      });
+    };
+
+    root.update = function(w, cb, isFocused) {
+      console.log(' UPDATE BALANCE!!!!', w ? w.getName() : 'current'); //TODO
+
+      w = w || $rootScope.wallet;
+      if (!w || !w.isReady()) return;
+
+      console.log('DO UPDATE BALANCE!!!!', w.getName()); //TODO
+      var wid = w.getId();
+
+      if (_balanceCache[wid]) {
+        w.balanceInfo = _balanceCache[wid];
+      } else {
+        $rootScope.updatingBalance = true;
+      }
+
+      root._fetchBalance(w, function(err, res) {
+        if (err) throw err;
+        w.balanceInfo=_balanceCache[wid] = res;
+        $rootScope.updatingBalance = false;
+        if (isFocused) {
+          _.extend($rootScope, w.balanceInfo);
+        }
+        if (cb) cb();
+      });
+    };
+
+    return root;
+  });