방 접속 구현

-import React from 'react';
+import React, { useContext } from 'react';
+import { useHistory } from 'react-router';
+import SocketContext from '../../contexts/SocketContext';
+import { MessageResponse, MessageType } from '../common/types';
+import { RoomData } from '../room/types';
 import { Room } from './types';
 
 interface RoomProps {
@@ -6,16 +10,37 @@ interface RoomProps {
 }
 
 export const RoomInfo: React.FC<RoomProps> = ({ room }) => {
+  const history = useHistory();
+  const socket = useContext(SocketContext);
+  const joinRoom = () => {
+    if (room.currentUsers < room.maxUsers) {
+      socket.emit(MessageType.ROOM_JOIN, (response: MessageResponse<RoomData>) => {
+        if (response.ok) {
+          history.push({
+            pathname: '/' + room.uuid,
+            state: {roomData: response.result!}
+          });
+        } else {
+          //TODO: 에러 MODAL을 어케띄우지? 하위컴포넌트에서 훅을 쓰면 어떻게 되는지 확인
+        }
+      })
+    } else {
+      //TODO: 자리 꽉찼다는 MODAL
+    }
+  }
+
   return (
-    <div className={`flex items-center place-content-between m-2 w-5/6 
+    <button className={`flex items-center place-content-between m-2 w-5/6 
                   ${room.currentUsers < room.maxUsers ?
                     'bg-white active:bg-green-100' :
                     'bg-gray-200 active:bg-gray-200'}
-                  rounded shadow hover:shadow-md`}>
+                  rounded shadow hover:shadow-md
+                  outline-none focus:outline-none`}
+            onClick={joinRoom}>
       <span className='mt-2 mb-2 ml-3 text-gray-600 text-lg'>{room.name}</span>
       <span className='mt-2 mb-2 mr-3 text-gray-500 text-right'>
         {room.currentUsers}/{room.maxUsers}
       </span>
-    </div>
+    </button>
   );
 }