fixed import not working properly

js/background.js

@@ -11,12 +11,12 @@ chrome.runtime.onMessage.addListener(function (request, sender, response) {
 		isSingleConflict(request.dtarr, request.unique, response);
 	} else if (request.command == "checkConflicts") {
 		checkConflicts(response);
-	} 
-	else if(request.command == "updateStatus"){
+	} else if (request.command == "updateStatus") {
 		updateStatus();
-	}
-	else if (request.command == "alreadyContains") {
+	} else if (request.command == "alreadyContains") {
 		alreadyContains(request.unique, response);
+	} else if (request.command == "updateTabs") {
+		updateTabs();
 	} else {
 		const xhr = new XMLHttpRequest();
 		const method = request.method ? request.method.toUpperCase() : "GET";
@@ -123,11 +123,13 @@ function isConflict(adtarr, bdtarr) {
 function add(request, sender, sendResponse) {
 	chrome.storage.sync.get('savedCourses', function (data) {
 		var courses = data.savedCourses;
+		if (!contains(courses, request.course.unique)) {
 			courses.push(request.course)
 			console.log(courses);
 			chrome.storage.sync.set({
 				savedCourses: courses
 			});
+		}
 		sendResponse({
 			done: "Added: (" + request.course.unique + ") " + request.course.coursename,
 			label: "Remove Course -"
@@ -159,17 +161,30 @@ function remove(request, sender, sendResponse) {
 function alreadyContains(unique, sendResponse) {
 	chrome.storage.sync.get('savedCourses', function (data) {
 		var courses = data.savedCourses;
-		var contains = false;
+		sendResponse({
+			alreadyContains: contains(courses, unique)
+		});
+	});
+}
+
+function contains(courses, unique) {
 	var i = 0;
-		while (i < courses.length && !contains) {
+	while (i < courses.length) {
 		if (courses[i].unique == unique) {
-				contains = true;
+			return true;
 		}
 		i++;
 	}
-		sendResponse({
-			alreadyContains: contains
+	return false;
+}
+
+function updateTabs() {
+	chrome.tabs.query({}, function (tabs) {
+		for (var i = 0; i < tabs.length; i++) {
+			chrome.tabs.sendMessage(tabs[i].id, {
+				command: "updateCourseList"
 			});
+		}
 	});
 }
 

js/import.js

@@ -10,6 +10,10 @@ $(function () {
 			link = `https://utdirect.utexas.edu/apps/registrar/course_schedule/${sem}/${unique}/`;
 			getInfo();
 		});
+		$("#import").text("Courses Saved!").css("background-color", "#4CAF50");
+		setTimeout(function () {
+			$("#import").html("<span style='font-size:small'>Import into </span><b>UT Reg Plus<b></h2>").css("background-color", "#FF9800");
+		}, 1000);
 	});
 
 });
@@ -27,30 +31,26 @@ function Course(coursename, unique, profname, datetimearr, status, link, registe
 
 
 function getInfo(classurl) {
-	chrome.runtime.sendMessage({
-		method: "GET",
-		action: "xhttp",
-		url: link,
-		data: ""
-	}, function (response) {
+	var xhr = new XMLHttpRequest();
+	xhr.open("GET", link, false);
+	xhr.send();
+	var response = xhr.responseText;
 	if (response) {
 		var output = "";
 		var object = $('<div/>').html(response).contents();
 		var c = getCourseObject(object);
+		console.log(c);
 		chrome.runtime.sendMessage({
-				command: "alreadyContains",
-				unique: c.unique
-			}, function (response) {
-				if (!response.alreadyContains) {
-					saveCourse(c);
-				}
+			command: "courseStorage",
+			course: c,
+			action: "add"
+		}, function () {
+			chrome.runtime.sendMessage({
+				command: "updateTabs"
 			});
-		//	var first = object.find('td[data-th="Instructor"]').text();
-	} else {
-
-	}
 		});
 	}
+}
 
 
 /*For a row, get all the course information and add the date-time-lines*/
@@ -99,20 +99,3 @@ function convertTime(time) {
 	}
 	return converted;
 }
-
-function saveCourse(course){
-	chrome.runtime.sendMessage({
-		command: "courseStorage",	
-		course: course,
-		action: "add"
-	}, function (response) {
-		$("#import").text("Courses Saved!").css("background-color","#4CAF50");
-		setTimeout(function () {
-			$("#import").html("<span style='font-size:small'>Import into </span><b>UT Reg Plus<b></h2>").css("background-color","#FF9800");
-		}, 1000);
-		chrome.runtime.sendMessage({
-			command: "updateCourseList"
-		});
-	});
-}
-

manifest.json

@@ -23,7 +23,8 @@
 
   ],
   "web_accessible_resources": [
-    "grades.db","images/disticon.png"],
+    "grades.db", "images/disticon.png"
+  ],
   "background": {
     "scripts": ["js/background.js"],
     "persistent": true