first commit

assets/js/lectureDates/lectureDateLogicHandler.js

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+let logicHandler = new LogicHandler()
+let modalHandler = new LectureDateModalHandler()
+
+function renderLectureDateModal(id) {
+    id = typeof id == "undefined" ? "Create" : id
+
+    let lectureDate = id == "Create" ? getEmptyLectureDate() : logicHandler.getItem("lectureDates", id)
+
+    document.body.append(modalHandler.getLectureDateModal(lectureDate))
+    document.body.append(modalHandler.getLectureDateModalButton(id))
+    let htmlButton = document.getElementById("modalButton" + id)
+    htmlButton.click()
+    htmlButton.remove()
+}
+
+function cancelLectureDateModal(id) {
+    document.getElementById("lectureDateModal" + id).remove()
+}
+
+function saveLectureDate(id) {
+    logicHandler.saveItem("lectureDate", id)
+}
+
+function removeLectureDate(id) {
+    logicHandler.removeItem("lectureDates", id)
+    document.getElementById("row" + id).remove()
+}
+
+function getEmptyLectureDate() {
+    return {
+        id: "Create",
+        startDate: "",
+        endDate: ""
+    }
+}