- Created a Diagnostics component;

- Corrected the history code;

src/utils/exams.ts

@@ -0,0 +1,23 @@
+import {Module} from "@/interfaces";
+import {Exam, ReadingExam, ListeningExam, WritingExam, SpeakingExam} from "@/interfaces/exam";
+import axios from "axios";
+
+export const getExamById = async (module: Module, id: string): Promise<Exam | undefined> => {
+	const examRequest = await axios<Exam>(`/api/exam/${module}/${id}`);
+	if (examRequest.status !== 200) {
+		return undefined;
+	}
+
+	const newExam = examRequest.data;
+
+	switch (module) {
+		case "reading":
+			return newExam as ReadingExam;
+		case "listening":
+			return newExam as ListeningExam;
+		case "writing":
+			return newExam as WritingExam;
+		case "speaking":
+			return newExam as SpeakingExam;
+	}
+};