added slider and some ui fixes

shared/session-api.ts

@@ -1,4 +1,22 @@
 var apiUrl = "https://codeeditor-api.davidssoft.com/";
+//var apiUrl = "https://codeeditor-api.azurewebsites.net/";
+
+export function hasSession() {
+    var localstorageSessionId = localStorage.getItem("sessionId");
+
+    if (!localstorageSessionId) {
+        return false;
+    }
+    else {
+        var expiration = localStorage.getItem("sessionIdExpiration");
+        if (expiration) {
+            return !sessionIsExpired(expiration);
+        }
+        else {
+            return false;
+        }
+    }
+}
 
 function getSessionId() {
     var localstorageSessionId = localStorage.getItem("sessionId");
@@ -10,9 +28,7 @@ function getSessionId() {
         var expiration = localStorage.getItem("sessionIdExpiration");
 
         if (expiration) {
-            var expirationDate = new Date(expiration);
-
-            if (dateDiff(expirationDate, new Date()) > 120) {
+            if (sessionIsExpired(expiration)) {
                 return setNewSession();
             }
             else {
@@ -27,6 +43,10 @@ function getSessionId() {
     }
 }
 
+function sessionIsExpired(expiration: string) {
+    return dateDiff(new Date(expiration), new Date()) > 120;
+}
+
 function setNewSession() {
     var newSessionId = uuidv4();
     localStorage.setItem("sessionIdExpiration", (new Date()).toString());
@@ -76,6 +96,9 @@ export function setSessionData(language: string, input: any, onSet?: () => void)
     else if (language.toLowerCase() == "css") {
         type = 2;
     }
+    else {
+        type = 3;
+    }
 
     fetch(apiUrl + "session/set", { 
         method: "POST",