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assets/webapps/costcontrol.gaiamobile.org/js/iac_manager.js

@@ -0,0 +1,90 @@
+/* global debug, Promise */
+/* exported IACManager  */
+'use strict';
+
+var IACManager = (function() {
+  var TIMEOUT = 60 * 1000; // 1 minute
+  var configuration;
+
+  function init(cfg) {
+    configuration = cfg;
+  }
+
+  function broadcastStartOfSMSQuery(type) {
+    return IACManager._sendBroadcastMessage(_generateMsg(type, 'enable'));
+  }
+
+  function broadcastEndOfSMSQuery(type) {
+    return IACManager._sendBroadcastMessage(_generateMsg(type, 'disable'));
+  }
+
+  function _sendBroadcastMessage(msg) {
+    return new Promise(function(resolve, reject) {
+      navigator.mozApps.getSelf().onsuccess = function(evt) {
+        var app = evt.target.result;
+        app.connect('costcontrolSmsQuery').then(function onConnAccepted(ports) {
+          debug('Connection with sms app established...');
+          ports.forEach(function(port) {
+            var waitingForAnswerTimeout;
+
+            port.onmessage = function() {
+              clearTimeout(waitingForAnswerTimeout);
+              resolve();
+            };
+            // if no one has replied the message in one minute, the proposal
+            // will be rejected
+            waitingForAnswerTimeout = window.setTimeout(function() {
+              var errorMsg = 'Rejection by Timeout. No received answer to ' +
+                           msg.action + ' ' + msg.type + ' request.';
+              reject(errorMsg);
+            }, TIMEOUT);
+
+            port.postMessage(msg);
+          });
+        }, function onConnRejected(reason) {
+          console.log('Rejected connection attempt due to', reason);
+          reject(reason);
+        });
+      };
+    });
+  }
+
+  function _getSmsNumberList(service) {
+    var silentSmsList = [];
+    if (configuration && configuration[service]) {
+      silentSmsList = configuration[service].senders;
+      if (silentSmsList.indexOf(configuration[service].destination) === -1) {
+        silentSmsList.push(configuration[service].destination);
+      }
+    }
+    return silentSmsList;
+  }
+
+  function _reset() {
+    configuration = null;
+  }
+
+  function _generateMsg(service, action) {
+    var outgoingNumber = configuration[service] &&
+                         configuration[service].destination;
+    var incomingNumbers = configuration[service] &&
+                          configuration[service].senders;
+    return {
+      action: action,
+      type: service,
+      smsNumbers: _getSmsNumberList(service),
+      outgoingNumber: outgoingNumber,
+      incomingNumbers: incomingNumbers
+    };
+  }
+
+  return {
+    init: init,
+    broadcastStartOfSMSQuery: broadcastStartOfSMSQuery,
+    broadcastEndOfSMSQuery: broadcastEndOfSMSQuery,
+    _getSmsNumberList: _getSmsNumberList,
+    _generateMsg: _generateMsg,
+    _sendBroadcastMessage: _sendBroadcastMessage,
+    _reset: _reset
+  };
+}());