From 78218c0f3427ad79de003ac59cffb99b08f0ae7d Mon Sep 17 00:00:00 2001
From: eug-vs <eug-vs@keemail.me>
Date: Mon, 10 Aug 2020 13:47:02 +0300
Subject: fix: resolve eslint errors

---
 src/components/PollsList/PollsList.tsx |  5 ++---
 src/containers/Profile/Profile.tsx     | 21 +++++++++------------
 src/hooks/APIClient.ts                 | 23 ++++++++++++++---------
 src/hooks/useAuth.tsx                  |  4 ++--
 4 files changed, 27 insertions(+), 26 deletions(-)

diff --git a/src/components/PollsList/PollsList.tsx b/src/components/PollsList/PollsList.tsx
index 0fd8fa4..c95bfde 100644
--- a/src/components/PollsList/PollsList.tsx
+++ b/src/components/PollsList/PollsList.tsx
@@ -17,13 +17,12 @@ interface RenderPropTypes {
 
 
 const PollsList: React.FC<PropTypes> = ({ polls, mutate }) => {
-
   const RenderItem: React.FC<RenderPropTypes> = ({ index, style, key }) => {
     const poll = polls[index];
 
-    const setPoll = (poll: Poll) => {
+    const setPoll = (newPoll: Poll) => {
       const newPolls = [...polls];
-      newPolls[index] = poll;
+      newPolls[index] = newPoll;
 
       // Force-update list-size so everything re-renders
       mutate([], false);
diff --git a/src/containers/Profile/Profile.tsx b/src/containers/Profile/Profile.tsx
index f7678de..7e929fb 100644
--- a/src/containers/Profile/Profile.tsx
+++ b/src/containers/Profile/Profile.tsx
@@ -1,4 +1,4 @@
-import React, { useEffect, useCallback } from 'react';
+import React, { useEffect, useMemo } from 'react';
 import { useHistory, useParams } from 'react-router-dom';
 import { Poll } from 'which-types';
 import { Container } from '@material-ui/core';
@@ -26,15 +26,12 @@ const Profile: React.FC = () => {
   }, [username, history, user]);
 
 
-  const totalVotes = useCallback(
-    polls.reduce(
-      (total: number, current: Poll) => {
-        const { left, right } = current.contents;
-        return total + left.votes + right.votes;
-      }, 0
-    ),
-    [polls]
-  );
+  const totalVotes = useMemo(() => polls.reduce(
+    (total: number, current: Poll) => {
+      const { left, right } = current.contents;
+      return total + left.votes + right.votes;
+    }, 0
+  ), [polls]);
 
   return (
     <Container maxWidth="sm" disableGutters>
@@ -46,8 +43,8 @@ const Profile: React.FC = () => {
       />
       {
         isValidating && !polls
-        ? <Loading />
-        : <PollsList polls={polls} mutate={mutatePolls} />
+          ? <Loading />
+          : <PollsList polls={polls} mutate={mutatePolls} />
       }
     </Container>
   );
diff --git a/src/hooks/APIClient.ts b/src/hooks/APIClient.ts
index 2322af4..9563bd6 100644
--- a/src/hooks/APIClient.ts
+++ b/src/hooks/APIClient.ts
@@ -1,7 +1,12 @@
-import useSWR from 'swr';
+import useSWR, { responseInterface } from 'swr';
+import { User, Poll, Feedback } from 'which-types';
 import { get } from '../requests';
 
 
+interface Response<T> extends responseInterface<T, Error> {
+  data: T;
+}
+
 const fetcher = (endpoint: string) => get(endpoint).then(response => response.data);
 
 const arrayOptions = {
@@ -9,21 +14,21 @@ const arrayOptions = {
   revalidateOnMount: true
 };
 
-export const useUser = (username: string | null) => {
+export const useUser = (username: string | null): Response<User> => {
   return useSWR(
     username && `/users?username=${username}`,
     (url: string) => get(url).then(response => response.data[0])
-  );
+  ) as Response<User>;
 };
 
-export const useProfile = (id: string) => {
-  return useSWR(id && `/profiles/${id}`, fetcher, arrayOptions);
+export const useProfile = (id: string): Response<Poll[]> => {
+  return useSWR(id && `/profiles/${id}`, fetcher, arrayOptions) as Response<Poll[]>;
 };
 
-export const useFeed = () => {
-  return useSWR('/feed', fetcher, { ...arrayOptions, revalidateOnFocus: false });
+export const useFeed = (): Response<Poll[]> => {
+  return useSWR('/feed', fetcher, { ...arrayOptions, revalidateOnFocus: false }) as Response<Poll[]>;
 };
 
-export const useFeedback = () => {
-  return useSWR('/feedback', fetcher, arrayOptions);
+export const useFeedback = (): Response<Feedback[]> => {
+  return useSWR('/feedback', fetcher, arrayOptions) as Response<Feedback[]>;
 };
diff --git a/src/hooks/useAuth.tsx b/src/hooks/useAuth.tsx
index ed1e428..2f03a33 100644
--- a/src/hooks/useAuth.tsx
+++ b/src/hooks/useAuth.tsx
@@ -8,14 +8,14 @@ import useLocalStorage from './useLocalStorage';
 
 
 interface ContextType {
-  user: User | null,
+  user: User | undefined,
   login: (username: string, password: string, remember?: boolean) => Promise<boolean>;
   logout: () => void;
   isAuthenticated: boolean;
 }
 
 const authContext = createContext<ContextType>({
-  user: null,
+  user: undefined,
   login: async () => false,
   logout: () => {},
   isAuthenticated: false
-- 
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