Lots of changes

- internationalization
- new logo
- connection screen improved
- always try provisioning IP for connection

data_processing/SwimTrackerWebsocketConnection.js

@@ -28,6 +28,7 @@ const OpCodes = {
 };
 
 const HEARTBEAT_TIMEOUT = 3000;
+const PROVISIONING_IP = "192.168.42.1";
 
 export default class SwimTrackerWebsocketConnection {
     constructor(swimTrackerHost, onData, onStarted, onStopped, onWifiStateInfo, onConnect, onDisconnect) {
@@ -40,11 +41,13 @@ export default class SwimTrackerWebsocketConnection {
         this.onConnect = onConnect;
         this.onDisconnect = onDisconnect;
 
-        const wsOptions = {
-            maxReconnectionDelay: 4000
-        };
+        
+        // try configured URL and provisioning URL
+        const urls = [`ws://${swimTrackerHost}:81`, `ws://${PROVISIONING_IP}:81`];
+        let urlIndex = 0;
+        const urlProvider = () => urls[urlIndex++ % urls.length]; // round robin url provider
 
-        this.ws = new ReconnectingWebSocket(`ws://${swimTrackerHost}:81`, [], wsOptions);
+        this.ws = new ReconnectingWebSocket(urlProvider, [], { maxReconnectionDelay: 3000 });
         this.ws.onmessage = this._onMessage;
         this.ws.onopen = this.onConnect;
         this.ws.onclose = this.onDisconnect;
@@ -67,7 +70,8 @@ export default class SwimTrackerWebsocketConnection {
 
         let connection = this;
         this.pingTimeout = setTimeout(() => {
-            connection.ws.reconnect();            
+            if(connection.ws !== null)
+                connection.ws.reconnect();            
         }, HEARTBEAT_TIMEOUT);
     }
 
@@ -90,7 +94,7 @@ export default class SwimTrackerWebsocketConnection {
         this._sendMsg(OpCodes.STOP_SESSION);
     }
 
-    sendTareCommand() {
+    sendTareCommand = () => {
         this._sendMsg(OpCodes.TARE);
     }
 
@@ -105,7 +109,7 @@ export default class SwimTrackerWebsocketConnection {
 
     }
 
-    wifiResetToProvisioning() {
+    sendTareCommand = () => {
         this._sendMsg(OpCodes.WIFI_STATE_SET, {
             "reset_to_provisioning": true,
         });