Unfinished grading attempt at solving it

src/pages/api/evaluate/writing.ts

@@ -3,6 +3,9 @@ import type { NextApiRequest, NextApiResponse } from "next";
 import { withIronSessionApiRoute } from "iron-session/next";
 import { sessionOptions } from "@/lib/session";
 import axios from "axios";
+import client from "@/lib/mongodb";
+
+const db = client.db(process.env.MONGODB_DB);
 
 interface Body {
 	userId: string;
@@ -22,13 +25,41 @@ async function handler(req: NextApiRequest, res: NextApiResponse) {
 		return;
 	}
 
-	const { task, ...body}  = req.body as Body;
-	const taskNumber = task.toString() !== "1" && task.toString() !== "2" ? "1" : task.toString();
+	const body = req.body as Body;
+	const taskNumber = body.task.toString() !== "1" && body.task.toString() !== "2" ? "1" : body.task.toString();
+
+	// Check if there is one eval for the current exercise
+	const previousEval = await db.collection("evaluation").findOne({
+		user: body.userId,
+		session_id: body.sessionId,
+		exercise_id: body.exerciseId,
+	})
+
+	// If there is delete it
+	if (previousEval) {
+		await db.collection("evaluation").deleteOne({
+			user: body.userId,
+			session_id: body.sessionId,
+			exercise_id: body.exerciseId,
+		})
+	}
+
+	// Insert the new eval for the backend to place it's result
+	await db.collection("evaluation").insertOne(
+		{
+			user: body.userId,
+			session_id: body.sessionId,
+			exercise_id: body.exerciseId,
+			type: "writing",
+			task: body.task,
+			status: "pending"
+		}
+	);
 
 	await axios.post(`${process.env.BACKEND_URL}/grade/writing/${taskNumber}`, body, {
 		headers: {
 			Authorization: `Bearer ${process.env.BACKEND_JWT}`,
 		},
 	});
-	res.status(200).json({ok: true});
+	res.status(200).json({ ok: true });
 }