Added the ability to create groups

src/pages/api/groups/index.ts

@@ -0,0 +1,50 @@
+// Next.js API route support: https://nextjs.org/docs/api-routes/introduction
+import type {NextApiRequest, NextApiResponse} from "next";
+import {app} from "@/firebase";
+import {getFirestore, collection, getDocs, setDoc, doc} from "firebase/firestore";
+import {withIronSessionApiRoute} from "iron-session/next";
+import {sessionOptions} from "@/lib/session";
+import {Group} from "@/interfaces/user";
+
+const db = getFirestore(app);
+
+export default withIronSessionApiRoute(handler, sessionOptions);
+
+async function handler(req: NextApiRequest, res: NextApiResponse) {
+	if (!req.session.user) {
+		res.status(401).json({ok: false});
+		return;
+	}
+
+	if (req.method === "GET") await get(req, res);
+	if (req.method === "POST") await post(req, res);
+}
+
+async function get(req: NextApiRequest, res: NextApiResponse) {
+	const {admin} = req.query as {admin: string};
+	const snapshot = await getDocs(collection(db, "groups"));
+
+	const groups: Group[] = snapshot.docs.map((doc) => ({
+		id: doc.id,
+		...doc.data(),
+	})) as Group[];
+
+	if (admin) {
+		res.status(200).json(groups.filter((x) => x.admin === admin));
+		return;
+	}
+
+	res.status(200).json(
+		snapshot.docs.map((doc) => ({
+			id: doc.id,
+			...doc.data(),
+		})),
+	);
+}
+
+async function post(req: NextApiRequest, res: NextApiResponse) {
+	const body = req.body as Group;
+
+	await setDoc(doc(db, "groups", body.id), {name: body.name, admin: body.admin, participants: body.participants});
+	res.status(200).json({ok: true});
+}