From 13c15825aa6b651439c043c75d9871e52c69cf9f Mon Sep 17 00:00:00 2001
From: Vitaly Takmazov
Date: Fri, 28 Oct 2022 12:48:23 +0300
Subject: Upgrade to `react-router` v6

---
 vnext/src/App.js       | 58 ++++++++++++++------------------------------------
 vnext/src/ui/Feeds.js  | 49 ++++++++++++++++++++++++------------------
 vnext/src/ui/Header.js |  8 +++----
 vnext/src/ui/Login.js  |  8 +++----
 vnext/src/ui/Post.js   |  6 +++---
 5 files changed, 55 insertions(+), 74 deletions(-)

(limited to 'vnext/src')

diff --git a/vnext/src/App.js b/vnext/src/App.js
index b56e0300..79fde2d1 100644
--- a/vnext/src/App.js
+++ b/vnext/src/App.js
@@ -1,5 +1,5 @@
 import { useState, useEffect, useRef } from 'react';
-import { Route, Link, Switch } from 'react-router-dom';
+import { Route, Link, Routes } from 'react-router-dom';
 import { useScroll, useRafState } from 'react-use';
 import qs from 'qs';
 
@@ -183,47 +183,21 @@ export default function App({ footer }) {
           </aside>
         }
         <section id="content" ref={contentRef} className={scrollState.top ? elClassTop : ''}>
-          <Switch>
-            <Route exact path="/">
-              <Discussions visitor={visitor} />
-            </Route>
-            <Route exact path="/home">
-              <Home visitor={visitor} />
-            </Route>
-            <Route exact path="/discover">
-              <Discover visitor={visitor} />
-            </Route>
-            <Route exact path="/settings">
-              <Settings visitor={visitor} onChange={auth} />
-            </Route>
-            <Route exact path="/login">
-              <Login visitor={visitor} onAuth={auth} />
-            </Route>
-            <Route exact path="/post">
-              <Post visitor={visitor} />
-            </Route>
-            <Route exact path="/pm">
-              <Contacts visitor={visitor} />
-            </Route>
-            <Route exact path="/pm/:user">
-              <Chat connection={eventSource} visitor={visitor} />
-            </Route>
-            <Route exact path="/:user/friends">
-              <Friends />
-            </Route>
-            <Route exact path="/:user/readers">
-              <Readers />
-            </Route>
-            <Route exact path="/:user">
-              <Blog visitor={visitor} />
-            </Route>
-            <Route exact path="/tag/:tag">
-              <Tag visitor={visitor} />
-            </Route>
-            <Route exact path="/:user/:mid">
-              <Thread connection={eventSource} visitor={visitor} />
-            </Route>
-          </Switch>
+          <Routes>
+            <Route exact path="/" element={<Discussions visitor={visitor} />} />
+            <Route exact path="/home" element={<Home visitor={visitor} />} />
+            <Route exact path="/discover" element={<Discover visitor={visitor} />} />
+            <Route exact path="/settings" element={<Settings visitor={visitor} onChange={auth} />} />
+            <Route exact path="/login" element={<Login visitor={visitor} onAuth={auth} />} />
+            <Route exact path="/post" element={<Post visitor={visitor} />} />
+            <Route exact path="/pm" element={<Contacts visitor={visitor} />} />
+            <Route exact path="/pm/:user" element={<Chat connection={eventSource} visitor={visitor} />} />
+            <Route exact path="/:user/friends" element={<Friends />} />
+            <Route exact path="/:user/readers" element={<Readers />} />
+            <Route exact path="/:user" element={<Blog visitor={visitor} />} />
+            <Route exact path="/tag/:tag" element={<Tag visitor={visitor} />} />
+            <Route exact path="/:user/:mid" element={<Thread connection={eventSource} visitor={visitor} />} />
+          </Routes>
         </section>
       </div>
     </>
diff --git a/vnext/src/ui/Feeds.js b/vnext/src/ui/Feeds.js
index d6813130..c9199fa6 100644
--- a/vnext/src/ui/Feeds.js
+++ b/vnext/src/ui/Feeds.js
@@ -1,5 +1,5 @@
-import { useState, useEffect } from 'react';
-import { Link, useLocation, useHistory, useParams } from 'react-router-dom';
+import { useState, useEffect, useLayoutEffect } from 'react';
+import { Link, useLocation, useParams, Navigate } from 'react-router-dom';
 
 import qs from 'qs';
 import moment from 'moment';
@@ -25,6 +25,19 @@ import { getMessages } from '../api';
  * @property {import('../api').Message[]=} msgs
  */
 
+function RequireAuth({ visitor, children }) {
+  let location = useLocation();
+  if (!visitor.hash) {
+    // Redirect them to the /login page, but save the current location they were
+    // trying to go to when they were redirected. This allows us to send them
+    // along to that page after they login, which is a nicer user experience
+    // than dropping them off on the home page.
+    return <Navigate to="/login" state={{ from: location }} />;
+  }
+
+  return children;
+}
+
 /**
  * @param {PageProps} props
  */
@@ -36,7 +49,7 @@ export function Discover({ visitor }) {
     search: search,
     pageParam: search.search ? 'page' : 'before_mid'
   };
-  return (<Feed authRequired={false} query={query} visitor={visitor} />);
+  return (<Feed query={query} visitor={visitor} />);
 }
 
 /**
@@ -47,7 +60,7 @@ export function Discussions({ visitor }) {
     baseUrl: '/api/messages/discussions',
     pageParam: 'to'
   };
-  return (<Feed authRequired={false} query={query} visitor={visitor} />);
+  return (<Feed query={query} visitor={visitor} />);
 }
 
 /**
@@ -70,7 +83,7 @@ export function Blog({ visitor }) {
       <div className="msg-cont">
         <UserInfo uname={user} />
       </div>
-      <Feed authRequired={false} query={query} visitor={visitor} />
+      <Feed query={query} visitor={visitor} />
     </>
   );
 }
@@ -88,7 +101,7 @@ export function Tag({ visitor }) {
     },
     pageParam: 'before_mid'
   };
-  return (<Feed authRequired={false} query={query} visitor={visitor} />);
+  return (<Feed query={query} visitor={visitor} />);
 }
 
 /**
@@ -99,12 +112,15 @@ export function Home({ visitor }) {
     baseUrl: '/api/home',
     pageParam: 'before_mid'
   };
-  return (<Feed authRequired={true} query={query} visitor={visitor} />);
+  return (
+    <RequireAuth visitor={visitor}>
+      <Feed query={query} visitor={visitor} />
+    </RequireAuth>
+  );
 }
 
 /**
  * @typedef {Object} FeedState
- * @property { boolean } authRequired
  * @property { import('../api').SecureUser } visitor
  * @property { import('../api').Message[]= } msgs
  * @property { Query} query
@@ -113,11 +129,9 @@ export function Home({ visitor }) {
 /**
  * @param {FeedState} props
  */
-function Feed({ visitor, query, authRequired }) {
+function Feed({ visitor, query }) {
   const location = useLocation();
-  const history = useHistory();
   const [state, setState] = useState({
-    authRequired: authRequired,
     hash: visitor.hash,
     msgs: [],
     nextpage: null,
@@ -125,7 +139,6 @@ function Feed({ visitor, query, authRequired }) {
     tag: ''
   });
   const [loading, setLoading] = useState(true);
-
   useEffect(() => {
     setLoading(true);
     const filter = location.search.substring(1);
@@ -135,23 +148,17 @@ function Feed({ visitor, query, authRequired }) {
       newFilter[pageParam] = pageValue;
       return `?${qs.stringify(newFilter)}`;
     };
-    document.body.scrollTop = 0;
-    document.documentElement.scrollTop = 0;
     const filterParams = qs.parse(filter);
     let params = Object.assign({}, filterParams || {}, query.search || {});
     let url = query.baseUrl;
-    if (state.hash) {
-      params.hash = state.hash;
-    }
-    if (!params.hash && state.authRequired) {
-      history.push('/');
-    }
     getMessages(url, params)
       .then(response => {
         const { data } = response;
         const { pageParam } = query;
         const lastMessage = data.slice(-1)[0] || {};
         const nextpage = getPageParam(pageParam, lastMessage, filterParams);
+        document.body.scrollTop = 0;
+        document.documentElement.scrollTop = 0;
         setState((prevState) => {
           return {
             ...prevState,
@@ -169,7 +176,7 @@ function Feed({ visitor, query, authRequired }) {
           };
         });
       });
-  }, [location.search, state.hash, state.authRequired, history, query]);
+  }, [location.search, query]);
   return (state.msgs.length > 0 ? (
     <div className="msgs">
       {
diff --git a/vnext/src/ui/Header.js b/vnext/src/ui/Header.js
index 1574a489..3162c9ea 100644
--- a/vnext/src/ui/Header.js
+++ b/vnext/src/ui/Header.js
@@ -1,12 +1,12 @@
 import { memo, useCallback } from 'react';
-import { Link, useHistory } from 'react-router-dom';
+import { Link, useNavigate } from 'react-router-dom';
 
 import Icon from './Icon';
 import { UserLink } from './UserInfo';
 import SearchBox from './SearchBox';
 
 function Header({ visitor, className }) {
-    const history = useHistory();
+    const navigate = useNavigate();
     /**
      * @param {string} searchString
      */
@@ -14,8 +14,8 @@ function Header({ visitor, className }) {
         let location = {};
         location.pathname = '/discover';
         location.search = `?search=${searchString}`;
-        history.push(location);
-    }, [history]);
+        navigate(location);
+    }, [navigate]);
     return (
         <div id="header" className={className}>
             <div id="header_wrapper">
diff --git a/vnext/src/ui/Login.js b/vnext/src/ui/Login.js
index fc3922c8..5a96c822 100644
--- a/vnext/src/ui/Login.js
+++ b/vnext/src/ui/Login.js
@@ -1,5 +1,5 @@
 import { useEffect } from 'react';
-import { useLocation, useHistory } from 'react-router-dom';
+import { useLocation, useNavigate } from 'react-router-dom';
 
 import Icon from './Icon';
 import Button from './Button';
@@ -22,15 +22,15 @@ import './Login.css';
 function Login({ visitor, onAuth }) {
 
     const location = useLocation();
-    const history = useHistory();
+    const navigate = useNavigate();
 
     useEffect(() => {
         if (visitor.hash) {
             const {retpath } = location.state || '/';
             console.log(retpath);
-            history.push(retpath);
+            navigate(retpath);
         }
-    }, [history, location.state, visitor]);
+    }, [navigate, location.state, visitor]);
 
     const { register, handleSubmit, formState: { errors }, } = useForm();
 
diff --git a/vnext/src/ui/Post.js b/vnext/src/ui/Post.js
index d8d841e1..a1d14ea0 100644
--- a/vnext/src/ui/Post.js
+++ b/vnext/src/ui/Post.js
@@ -1,5 +1,5 @@
 import { useState } from 'react';
-import { useLocation, useHistory } from 'react-router-dom';
+import { useLocation, useNavigate } from 'react-router-dom';
 
 import qs from 'qs';
 
@@ -13,7 +13,7 @@ import { post, update } from '../api';
  */
 export default function Post({ visitor }) {
   const location = useLocation();
-  const history = useHistory();
+  const navigate = useNavigate();
   let draftMessage = (location.state || {}).draft || {};
   let [draft, setDraft] = useState(draftMessage.body);
   let params = qs.parse(window.location.search.substring(1));
@@ -24,7 +24,7 @@ export default function Post({ visitor }) {
       .then(response => {
         if (response.status === 200) {
           const msg = response.data.newMessage;
-          history.push(`/${visitor.uname}/${msg.mid}`);
+          navigate(`/${visitor.uname}/${msg.mid}`);
         }
       }).catch(console.log);
   };
-- 
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