add: auto-refresh on the results pages

actions/results.ts

@@ -0,0 +1,33 @@
+"use server";
+import prisma from "@/lib/prisma";
+
+export interface Results {
+	name: string;
+	total: number;
+}
+
+export async function getResults(testId: number) {
+    const grades = await prisma.grade.findMany({ where: { testId: testId, user: { isTeacher: false } } });
+
+	const allGrades = ['1', '1.5', '2', '2.5', '3', '3.5', '4', '4.5', '5', '5.5', '6'];
+	let gradeOccurences = new Array(allGrades.length).fill(0);
+	const gradeList = grades.map((grade) => grade.grade);
+
+	for (let i = 0; i < gradeList.length; i++) {
+		gradeOccurences[allGrades.indexOf(gradeList[i].toString())]++;
+	}
+
+	let data: Results[] = [];
+	for (let i = 0; i < gradeOccurences.length; i++) {
+		data.push({
+			name: allGrades[i],
+			total: gradeOccurences[i],
+		});
+	}
+
+    return data;
+}
+
+export async function getTeacherResult(testId: number) {
+    return await prisma.grade.findFirst({ where: { testId: testId, user: { isTeacher: true } } });
+}