Fix eslint errors

functions/src/index.ts

@@ -1,7 +1,12 @@
 import * as functions from "firebase-functions";
-import { initializeApp } from "firebase-admin/app";
+import {initializeApp} from "firebase-admin/app";
-import { DocumentReference, DocumentSnapshot, getFirestore, QuerySnapshot } from "firebase-admin/firestore";
+import {
-import express, { Request, Response } from "express";
+  DocumentReference,
+  DocumentSnapshot,
+  getFirestore,
+  QuerySnapshot,
+} from "firebase-admin/firestore";
+import express, {Request, Response} from "express";
 
 type VoteEntry = {
   username: string
@@ -20,11 +25,20 @@ const db = getFirestore();
 const app = express();
 
 const getVote = async (id: string) =>
-  db.collection("votes").doc(id).get() as Promise<DocumentSnapshot<Vote>>
+  db.collection("votes")
+      .doc(id)
+      .get() as Promise<DocumentSnapshot<Vote>>;
 const getVoteEntry = async (vote: DocumentReference<Vote>, username: string) =>
-  vote.collection("entries").where("username", "==", username).get() as Promise<QuerySnapshot<VoteEntry>>
+  vote.collection("entries")
-const makeVoteEntry = async (vote: DocumentReference<Vote>, username: string, voteIndex: number) =>
+      .where("username", "==", username)
-  vote.collection("entries").add({ username, voteIndex }) as Promise<DocumentReference<VoteEntry>>
+      .get() as Promise<QuerySnapshot<VoteEntry>>;
+const makeVoteEntry = async (
+    vote: DocumentReference<Vote>,
+    username: string,
+    voteIndex: number
+) =>
+  vote.collection("entries")
+      .add({username, voteIndex}) as Promise<DocumentReference<VoteEntry>>;
 
 app.post("/", async (req: Request, res: Response) => {
   const voteId = req.body.voteId as string;
@@ -43,24 +57,28 @@ app.post("/", async (req: Request, res: Response) => {
 
   const vote = await getVote(voteId);
   if (!vote.exists) {
-    res.status(404).json({ error: "Vote not found" });
+    res.status(404).json({error: "Vote not found"});
     return;
   }
 
-  if (Number.isNaN(voteIndex) || voteIndex < 0 || voteIndex >= vote.data()!.options) {
+  if (
-    res.status(400).json({ error: "Invalid vote index" });
+    Number.isNaN(voteIndex) ||
+    voteIndex < 0 ||
+    voteIndex >= (vote.data()?.options ?? 0)
+  ) {
+    res.status(400).json({error: "Invalid vote index"});
     return;
   }
 
   const entry = await getVoteEntry(vote.ref, voter);
   if (entry.empty) {
     await makeVoteEntry(vote.ref, voter, voteIndex);
-    res.json({ success: true });
+    res.json({success: true});
     return;
   }
 
-  entry.docs[0].ref.update({ voteIndex });
+  entry.docs[0].ref.update({voteIndex});
-  res.json({ success: true });
+  res.json({success: true});
 });
 
 app.get("/", async (req: Request, res: Response) => {
@@ -72,7 +90,7 @@ app.get("/", async (req: Request, res: Response) => {
 
   const vote = await getVote(voteId);
   if (!vote.exists) {
-    res.status(404).json({ error: "Vote not found" });
+    res.status(404).json({error: "Vote not found"});
     return;
   }
 
@@ -88,12 +106,12 @@ app.get("/entries", async (req: Request, res: Response) => {
 
   const vote = await getVote(voteId);
   if (!vote.exists) {
-    res.status(404).json({ error: "Vote not found" });
+    res.status(404).json({error: "Vote not found"});
     return;
   }
 
   const entries = await vote.ref.collection("entries").get();
-  res.json(entries.docs.map(d => d.data()));
+  res.json(entries.docs.map((d) => d.data()));
 });
 
 app.get("/count", async (req: Request, res: Response) => {
@@ -106,19 +124,23 @@ app.get("/count", async (req: Request, res: Response) => {
 
   const vote = await getVote(voteId);
   if (!vote.exists) {
-    res.status(404).json({ error: "Vote not found" });
+    res.status(404).json({error: "Vote not found"});
     return;
   }
 
   const collect = new Array<Promise<QuerySnapshot<VoteEntry>>>();
-  for (let i = 0; i < vote.data()!.options; i++) {
+  for (let i = 0; i < (vote.data()?.options ?? 0); i++) {
-    collect.push(vote.ref.collection("entries").where("voteIndex", "==", i).get() as Promise<QuerySnapshot<VoteEntry>>)
+    collect.push(vote.ref
+        .collection("entries")
+        .where("voteIndex", "==", i)
+        .get() as Promise<QuerySnapshot<VoteEntry>>
+    );
   }
 
   res.json((await Promise.all(collect)).map((query) => query.size));
 });
 
-export const vote = functions.https.onRequest(app)
+export const vote = functions.https.onRequest(app);
 
 // // Start writing Firebase Functions
 // // https://firebase.google.com/docs/functions/typescript