renamed operator, added subtitle with working hours, added greeting message to the chat, fixted scroll

src/components/FloatingSupportChat/Chat.tsx

@@ -12,43 +12,47 @@ import {
 } from "@mui/material";
 import makeRequest from "@api/makeRequest"
 import {
-  TicketMessage,
-  useTicketsFetcher,
-  useTicketMessages,
-  getMessageFromFetchError,
-  useSSESubscription,
   createTicket,
+  getMessageFromFetchError,
+  throttle,
+  TicketMessage,
+  useSSESubscription,
+  useTicketMessages,
+  useTicketsFetcher,
 } from "@frontend/kitui";
-import { enqueueSnackbar } from "notistack";
-import { useCallback, useEffect, useMemo, useRef, useState } from "react";
+import {enqueueSnackbar} from "notistack";
+import type {TouchEvent, WheelEvent} from "react";
+import {useCallback, useEffect, useMemo, useRef, useState} from "react";
 import ChatMessage from "../ChatMessage";
 import SendIcon from "../icons/SendIcon";
 import ArrowLeft from "@root/assets/Icons/arrowLeft";
 import UserCircleIcon from "./UserCircleIcon";
-import { throttle } from "@frontend/kitui";
-import { sendTicketMessage, shownMessage } from "@root/api/ticket";
-import { useSSETab } from "@root/utils/hooks/useSSETab";
+import {sendTicketMessage, shownMessage} from "@root/api/ticket";
+import {useSSETab} from "@root/utils/hooks/useSSETab";
 import {
+  ACCEPT_SEND_MEDIA_TYPES_MAP,
   checkAcceptableMediaType,
   MAX_FILE_SIZE,
-  ACCEPT_SEND_MEDIA_TYPES_MAP,
 } from "@utils/checkAcceptableMediaType";
 import {
-  useTicketStore,
-  setTicketData,
   addOrUpdateUnauthMessages,
-  setUnauthTicketMessageFetchState,
-  setUnauthIsPreventAutoscroll,
   incrementUnauthMessage,
   setIsMessageSending,
+  setTicketData,
+  setUnauthIsPreventAutoscroll,
+  setUnauthTicketMessageFetchState,
+  useTicketStore,
 } from "@root/stores/tickets";
-import { useUserStore } from "@root/stores/user";
+import {useUserStore} from "@root/stores/user";
 import AttachFileIcon from "@mui/icons-material/AttachFile";
 import ChatDocument from "./ChatDocument";
 import ChatImage from "./ChatImage";
 import ChatVideo from "./ChatVideo";
 
-import type { WheelEvent, TouchEvent } from "react";
+const workingHoursMessage =
+    "Здравствуйте, задайте ваш вопрос и наш оператор вам ответит в течение 10 минут";
+const offHoursMessage =
+    "Здравствуйте, к сожалению, сейчас операторы не работают. Задайте ваш вопрос, и вам ответят в 10:00 по московскому времени";
 
 type ModalWarningType =
   | "errorType"
@@ -178,6 +182,35 @@ export default function Chat({ open = false, onclickArrow, sx }: Props) {
     [fetchState]
   );
 
+  useEffect(() => {
+    const date = new Date();
+    const currentHourUTC = date.getUTCHours();
+    const MscTime = 3; // Москва UTC+3;
+    const moscowHour = (currentHourUTC + MscTime) % 24;
+    const greetingMessage =
+        moscowHour >= 10 && moscowHour < 15
+            ? workingHoursMessage
+            : offHoursMessage;
+
+    const greetingMessageObj = {
+      created_at: new Date().toISOString(),
+      files: [],
+      id: "111ck2tepkvc9g6irk3fugg",
+      message: greetingMessage,
+      request_screenshot: "",
+      session_id: "111",
+      shown: { me: 1 },
+      ticket_id: "111",
+      user_id: "111",
+    };
+
+    addOrUpdateUnauthMessages([greetingMessageObj]);
+
+    if (open) {
+      scrollToBottom();
+    }
+  }, [open]);
+
   useEffect(
     function scrollOnNewMessage() {
       if (!chatBoxRef.current) return;
@@ -369,7 +402,7 @@ export default function Chat({ open = false, onclickArrow, sx }: Props) {
                 gap: "3px",
               }}
             >
-              <Typography>Мария</Typography>
+              <Typography>Данила</Typography>
               <Typography
                 sx={{
                   fontSize: "16px",
@@ -378,6 +411,14 @@ export default function Chat({ open = false, onclickArrow, sx }: Props) {
               >
                 онлайн-консультант
               </Typography>
+              <Typography
+                  sx={{
+                    fontSize: "16px",
+                    lineHeight: "19px",
+                  }}
+              >
+                время работы 10:00-3:00 по мск
+              </Typography>
             </Box>
           </Box>
           <Box