New feature on the account creation:

It automatically stores who created the code and adds the registered user to a group administrated by that creator

src/utils/registration.ts

@@ -0,0 +1,31 @@
+import {collection, doc, getDoc, getDocs, getFirestore, query, setDoc, where} from "firebase/firestore";
+import {app} from "@/firebase";
+import {Group, Type, User} from "@/interfaces/user";
+import {uuidv4} from "@firebase/util";
+
+const db = getFirestore(app);
+
+export const addUserToGroupOnCreation = async (userId: string, type: Type, creatorId: string) => {
+	const creatorDoc = await getDoc(doc(db, "users", creatorId));
+	if (!creatorDoc.exists()) return false;
+
+	const creator = {...creatorDoc.data(), id: creatorDoc.id} as User;
+
+	const creatorGroupsDocs = await getDocs(query(collection(db, "groups"), where("admin", "==", creator.id)));
+	const typeGroup = creatorGroupsDocs.docs.find((x) => (x.data() as Group).name === (type === "student" ? "Students" : "Teachers"));
+
+	if (typeGroup && typeGroup.exists()) {
+		await setDoc(typeGroup.ref, {participants: [...typeGroup.data().participants, userId]}, {merge: true});
+		return true;
+	}
+
+	const groupId = uuidv4();
+	await setDoc(doc(db, "groups", groupId), {
+		admin: creatorId,
+		name: type === "student" ? "Students" : "Teachers",
+		id: groupId,
+		participants: [userId],
+		disableEditing: true,
+	} as Group);
+	return true;
+};