From fe9984dd9c91d3c9b301dc8e85c12a7285d0cb6b Mon Sep 17 00:00:00 2001
From: Alex Gleason <alex@alexgleason.me>
Date: Fri, 17 Jun 2022 13:05:37 -0500
Subject: [PATCH] ChatRoom: convert to TSX

---
 app/soapbox/features/chats/chat_room.js  | 95 ------------------------
 app/soapbox/features/chats/chat_room.tsx | 68 +++++++++++++++++
 2 files changed, 68 insertions(+), 95 deletions(-)
 delete mode 100644 app/soapbox/features/chats/chat_room.js
 create mode 100644 app/soapbox/features/chats/chat_room.tsx

diff --git a/app/soapbox/features/chats/chat_room.js b/app/soapbox/features/chats/chat_room.js
deleted file mode 100644
index 4d9140650..000000000
--- a/app/soapbox/features/chats/chat_room.js
+++ /dev/null
@@ -1,95 +0,0 @@
-import { Map as ImmutableMap } from 'immutable';
-import PropTypes from 'prop-types';
-import React from 'react';
-import ImmutablePropTypes from 'react-immutable-proptypes';
-import ImmutablePureComponent from 'react-immutable-pure-component';
-import { injectIntl } from 'react-intl';
-import { connect } from 'react-redux';
-
-import { fetchChat, markChatRead } from 'soapbox/actions/chats';
-import { Column } from 'soapbox/components/ui';
-import { makeGetChat } from 'soapbox/selectors';
-import { getAcct } from 'soapbox/utils/accounts';
-import { displayFqn } from 'soapbox/utils/state';
-
-import ChatBox from './components/chat_box';
-
-const mapStateToProps = (state, { params }) => {
-  const getChat = makeGetChat();
-  const chat = state.getIn(['chats', 'items', params.chatId], ImmutableMap()).toJS();
-
-  return {
-    me: state.get('me'),
-    chat: getChat(state, chat),
-    displayFqn: displayFqn(state),
-  };
-};
-
-export default @connect(mapStateToProps)
-@injectIntl
-class ChatRoom extends ImmutablePureComponent {
-
-  static propTypes = {
-    dispatch: PropTypes.func.isRequired,
-    intl: PropTypes.object.isRequired,
-    chat: ImmutablePropTypes.map,
-    displayFqn: PropTypes.bool,
-    me: PropTypes.node,
-  }
-
-  handleInputRef = (el) => {
-    this.inputElem = el;
-    this.focusInput();
-  };
-
-  focusInput = () => {
-    if (!this.inputElem) return;
-    this.inputElem.focus();
-  }
-
-  markRead = () => {
-    const { dispatch, chat } = this.props;
-    if (!chat) return;
-    dispatch(markChatRead(chat.get('id')));
-  }
-
-  componentDidMount() {
-    const { dispatch, params } = this.props;
-    dispatch(fetchChat(params.chatId));
-    this.markRead();
-  }
-
-  componentDidUpdate(prevProps) {
-    const markReadConditions = [
-      () => this.props.chat,
-      () => this.props.chat.get('unread') > 0,
-    ];
-
-    if (markReadConditions.every(c => c()))
-      this.markRead();
-  }
-
-  render() {
-    const { chat, displayFqn } = this.props;
-    if (!chat) return null;
-    const account = chat.get('account');
-
-    return (
-      <Column label={`@${getAcct(account, displayFqn)}`}>
-        {/* <div className='chatroom__back'>
-          <Link to={`/@${account.get('acct')}`} className='chatroom__header'>
-            <Avatar account={account} size={18} />
-            <div className='chatroom__title'>
-              @{getAcct(account, displayFqn)}
-            </div>
-          </Link>
-        </div> */}
-        <ChatBox
-          chatId={chat.get('id')}
-          onSetInputRef={this.handleInputRef}
-        />
-      </Column>
-    );
-  }
-
-}
diff --git a/app/soapbox/features/chats/chat_room.tsx b/app/soapbox/features/chats/chat_room.tsx
new file mode 100644
index 000000000..41b108e3f
--- /dev/null
+++ b/app/soapbox/features/chats/chat_room.tsx
@@ -0,0 +1,68 @@
+import { Map as ImmutableMap } from 'immutable';
+import React, { useEffect, useRef } from 'react';
+
+import { fetchChat, markChatRead } from 'soapbox/actions/chats';
+import { Column } from 'soapbox/components/ui';
+import { useAppSelector, useAppDispatch } from 'soapbox/hooks';
+import { makeGetChat } from 'soapbox/selectors';
+import { getAcct } from 'soapbox/utils/accounts';
+import { displayFqn as getDisplayFqn } from 'soapbox/utils/state';
+
+import ChatBox from './components/chat_box';
+
+const getChat = makeGetChat();
+
+interface IChatRoom {
+  params: {
+    chatId: string,
+  }
+}
+
+/** Fullscreen chat UI. */
+const ChatRoom: React.FC<IChatRoom> = ({ params }) => {
+  const dispatch = useAppDispatch();
+  const displayFqn = useAppSelector(getDisplayFqn);
+  const inputElem = useRef<HTMLInputElement | null>(null);
+
+  const chat = useAppSelector(state => {
+    const chat = state.chats.items.get(params.chatId, ImmutableMap()).toJS() as any;
+    return getChat(state, chat);
+  });
+
+  const focusInput = () => {
+    inputElem.current?.focus();
+  };
+
+  const handleInputRef = (el: HTMLInputElement) => {
+    inputElem.current = el;
+    focusInput();
+  };
+
+  const markRead = () => {
+    if (!chat) return;
+    dispatch(markChatRead(chat.id));
+  };
+
+  useEffect(() => {
+    dispatch(fetchChat(params.chatId));
+    markRead();
+  }, [params.chatId]);
+
+  // If this component is loaded at all, we can instantly mark new messages as read.
+  useEffect(() => {
+    markRead();
+  }, [chat?.unread]);
+
+  if (!chat) return null;
+
+  return (
+    <Column label={`@${getAcct(chat.account as any, displayFqn)}`}>
+      <ChatBox
+        chatId={chat.id}
+        onSetInputRef={handleInputRef}
+      />
+    </Column>
+  );
+};
+
+export default ChatRoom;