addressing type warnings; account for no-messages returned

web/package-lock.json

@@ -1575,6 +1575,12 @@
         "moment": "^2.10.2"
       }
     },
+    "@types/classnames": {
+      "version": "2.2.11",
+      "resolved": "https://registry.npmjs.org/@types/classnames/-/classnames-2.2.11.tgz",
+      "integrity": "sha512-2koNhpWm3DgWRp5tpkiJ8JGc1xTn2q0l+jUNUE7oMKXUf5NpI9AIdC4kbjGNFBdHtcxBD18LAksoudAVhFKCjw==",
+      "dev": true
+    },
     "@types/color-name": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/@types/color-name/-/color-name-1.1.1.tgz",

web/package.json

@@ -24,6 +24,7 @@
   },
   "devDependencies": {
     "@types/chart.js": "^2.9.28",
+    "@types/classnames": "^2.2.11",
     "@types/node": "^14.11.2",
     "@types/prop-types": "^15.7.3",
     "@types/react": "^16.9.49",

web/pages/chat.tsx

@@ -2,12 +2,12 @@ import React, { useState, useEffect } from "react";
 import { Table, Typography, Tooltip, Button } from "antd";
 import { CheckCircleFilled, ExclamationCircleFilled, StopOutlined } from "@ant-design/icons";
 import classNames from 'classnames';
-import { RowSelectionType } from "antd/es/table/interface";
 import { ColumnsType } from 'antd/es/table';
 import format from 'date-fns/format'
 
 import { CHAT_HISTORY, fetchData, UPDATE_CHAT_MESSGAE_VIZ } from "../utils/apis";
 import { MessageType } from '../types/chat';
+import { isEmptyObject } from "../utils/format";
 
 const { Title } = Typography;
 
@@ -47,7 +47,11 @@ export default function Chat() {
   const getInfo = async () => {
     try {
       const result = await fetchData(CHAT_HISTORY, { auth: true });
-      setMessages(result);
+      if (isEmptyObject(result)) {
+        setMessages([]);
+      } else {
+        setMessages(result);
+      }
     } catch (error) {
       console.log("==== error", error);
     }
@@ -62,9 +66,9 @@ export default function Chat() {
 
   const nameFilters = createUserNameFilters(messages);
   
-  const rowSelection: RowSelectionType = {
+  const rowSelection = {
     selectedRowKeys,
-    onChange: selectedKeys => {
+    onChange: (selectedKeys: string[]) => {
       setSelectedRows(selectedKeys);
     },
   };

web/utils/format.ts

@@ -15,9 +15,10 @@ export function formatIPAddress(ipAddress: string): string {
 
 // check if obj is {}
 export function isEmptyObject(obj) {
-  return !obj || Object.keys(obj).length === 0;
+  return !obj || (Object.keys(obj).length === 0 && obj.constructor === Object);
 }
 
+
 export function parseSecondsToDurationString(seconds = 0) {
   const finiteSeconds = Number.isFinite(+seconds) ? Math.abs(seconds) : 0;