moved getting semesters into background, message calling in popup

js/popup.js

@@ -378,31 +378,15 @@ function showImportExportPopup() {
 }
 
 function getSemesters() {
-	var schedule_list = 'https://registrar.utexas.edu/schedules';
-	$.get(schedule_list, function (response) {
-		if (response) {
-			htmlToNode(response).find('.callout2>ul>li>a').each(function (i) {
-				if (i < Popup.num_semesters) {
-					let sem_name = $(this).text().trim();
-					if (sem_name != "Course Schedule Archive") {
-						$("#semesters").append(`<option>${sem_name}</option>`);
-						$.get($(this).attr('href'), function (response) {
-							if (response) {
-								let response_node = htmlToNode(response);
-								let name = response_node.find(".page-title").text().substring(17).trim();
-								response_node.find('.gobutton>a').each(function () {
-									let link = $(this).attr('href');
-									var sem_num = link.substring(link.lastIndexOf('/') + 1).trim();
-									$("option").each(function () {
-										if ($(this).text() == name)
-											$(this).val(sem_num);
-									})
-								});
-							}
-						});
-					}
-				}
-			});
+	chrome.runtime.sendMessage({
+		command: "currentSemesters"
+	}, function(response){
+		let { semesters } = response;
+		console.log(semesters);
+		let semester_names = Object.keys(semesters);
+		for(let i = 0; i<semester_names.length;i++){
+			let name = semester_names[i];
+			$("#semesters").append(`<option value='${semesters[name]}'>${name}</option>`);
 		}
 	});
 }