From 2af1536627036d0a329237b8ac61bfff16766aa2 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@helsinki.at>
Date: Sun, 24 Jul 2016 20:25:08 +0200
Subject: make list web socket connection resilient against connection problems


diff --git a/www/js/importer.js b/www/js/importer.js
index 8bc525e..caac692 100644
--- a/www/js/importer.js
+++ b/www/js/importer.js
@@ -35,6 +35,7 @@ Rdxport.Importer = function(username, token, rhimpordEndpoint) {
   this.uploads = [];
 
   this.initListWebSocket();
+  setInterval(this.checkListWebSocket.bind(this), 5000);
 };
 
 Rdxport.Importer.CMD_LIST = 'list';
@@ -51,19 +52,29 @@ Rdxport.Importer.TYPE_DONE = 'done';
 Rdxport.Importer.prototype.initListWebSocket = function() {
   var self = this;
   this.listWebSocket = new WebSocket(this.rhimpordEndpoint);
+  this.listWebSocket.connected = false;
 
   this.listWebSocket.onclose = function(code, reason) {
-    //console.log('close');
     //console.log(code);
     //console.log(reason);
+    if(this.connected) {
+      console.log('importer: list-socket closed, reconnect immediatly because it was connected before');
+      self.checkListWebSocket();
+    } else {
+      console.log('importer: list-socket closed, not reconnecting immediatly because it was never connected');
+    }
   };
 
   this.listWebSocket.onerror = function(error) {
     //console.log('error');
-    console.log(error);
+    if(this.connected) { // only print errors if we are connected
+      console.log(error);
+    }
   };
 
   this.listWebSocket.onopen = function() {
+    this.connected = true;
+    console.log('importer: list-socket is now connected');
     var sendOptions = {
       COMMAND: Rdxport.Importer.CMD_LIST,
       LOGIN_NAME: importer.username,
@@ -90,6 +101,12 @@ Rdxport.Importer.prototype.initListWebSocket = function() {
   };
 };
 
+Rdxport.Importer.prototype.checkListWebSocket = function() {
+  if(!this.listWebSocket || this.listWebSocket.readyState == 3) {
+    this.initListWebSocket();
+  }
+}
+
 Rdxport.Importer.prototype.syncUploads = function(route, groupView, done) {
   var sessions = this.sessions.filter(function(session) {
     var reference = session.reference.split('/');
@@ -344,8 +361,6 @@ Rdxport.Upload = function(fileOrsourceUri, group, groupView, cartNumber, useMeta
   this.error = false;
   this.errorStatus = '';
   this.errorString = '';
-
-  this.uploadInterval = null;
 };
 
 Rdxport.Upload.prototype.isUploading = function() {
@@ -496,7 +511,6 @@ Rdxport.Upload.prototype.close = function(silent) {
 };
 
 Rdxport.Upload.prototype.cancel = function() {
-  clearInterval(this.uploadInterval);
   this.webSocket.send(JSON.stringify({ COMMAND: 'cancel' }));
 };
 
-- 
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