Autoscroll to end of chat fix (#201)

bug fix for autoscrolling on message send/recieve

frontend/src/components/WorkspaceChat/ChatContainer/ChatHistory/HistoricalMessage/index.jsx

@@ -1,23 +1,12 @@
-import { useEffect, useRef, memo } from "react";
+import { memo, forwardRef } from "react";
 import { AlertTriangle } from "react-feather";
 import Jazzicon from "../../../../UserIcon";
 import renderMarkdown from "../../../../../utils/chat/markdown";
 import { userFromStorage } from "../../../../../utils/request";
 import Citations from "../Citation";
 
-function HistoricalMessage({
+const HistoricalMessage = forwardRef(
-  message,
+  ({ message, role, workspace, sources = [], error = false }, ref) => {
-  role,
-  workspace,
-  sources = [],
-  error = false,
-}) {
-  const replyRef = useRef(null);
-  useEffect(() => {
-    if (replyRef.current)
-      replyRef.current.scrollIntoView({ behavior: "smooth", block: "end" });
-  }, [replyRef.current]);
-
     if (role === "user") {
       return (
         <div className="flex justify-end mb-4 items-start">
@@ -50,7 +39,7 @@ function HistoricalMessage({
     }
 
     return (
-    <div ref={replyRef} className="flex justify-start items-end mb-4">
+      <div ref={ref} className="flex justify-start items-end mb-4">
         <Jazzicon size={30} user={{ uid: workspace.slug }} />
         <div className="ml-2 py-3 px-4 overflow-x-scroll w-fit md:max-w-[75%] bg-orange-100 dark:bg-stone-700 rounded-t-2xl rounded-br-2xl rounded-bl-sm">
           <span
@@ -61,6 +50,7 @@ function HistoricalMessage({
         </div>
       </div>
     );
-}
+  }
+);
 
 export default memo(HistoricalMessage);

frontend/src/components/WorkspaceChat/ChatContainer/ChatHistory/PromptReply/index.jsx

@@ -1,28 +1,21 @@
-import { memo, useEffect, useRef } from "react";
+import { forwardRef, memo } from "react";
 import { AlertTriangle } from "react-feather";
 import Jazzicon from "../../../../UserIcon";
 import renderMarkdown from "../../../../../utils/chat/markdown";
 import Citations from "../Citation";
 
-function PromptReply({
+const PromptReply = forwardRef(
-  uuid,
+  (
-  reply,
+    { uuid, reply, pending, error, workspace, sources = [], closed = true },
-  pending,
+    ref
-  error,
+  ) => {
-  workspace,
-  sources = [],
-  closed = true,
-}) {
-  const replyRef = useRef(null);
-  useEffect(() => {
-    if (replyRef.current)
-      replyRef.current.scrollIntoView({ behavior: "smooth", block: "end" });
-  }, [replyRef.current]);
-
     if (!reply && !sources.length === 0 && !pending && !error) return null;
     if (pending) {
       return (
-      <div className="chat__message flex justify-start mb-4 items-end">
+        <div
+          ref={ref}
+          className="chat__message flex justify-start mb-4 items-end"
+        >
           <Jazzicon size={30} user={{ uid: workspace.slug }} />
           <div className="ml-2 pt-2 px-6 w-fit md:max-w-[75%] bg-orange-100 dark:bg-stone-700 rounded-t-2xl rounded-br-2xl rounded-bl-sm">
             <span className={`inline-block p-2`}>
@@ -40,8 +33,8 @@ function PromptReply({
           <div className="ml-2 py-3 px-4 rounded-br-3xl rounded-tr-3xl rounded-tl-xl text-slate-100 ">
             <div className="bg-red-50 text-red-500 rounded-lg w-fit flex flex-col p-2">
               <span className={`inline-block`}>
-              <AlertTriangle className="h-4 w-4 mb-1 inline-block" /> Could not
+                <AlertTriangle className="h-4 w-4 mb-1 inline-block" /> Could
-              respond to message.
+                not respond to message.
               </span>
               <span className="text-xs">Reason: {error || "unknown"}</span>
             </div>
@@ -51,11 +44,7 @@ function PromptReply({
     }
 
     return (
-    <div
+      <div key={uuid} ref={ref} className="mb-4 flex justify-start items-end">
-      key={uuid}
-      ref={replyRef}
-      className="mb-4 flex justify-start items-end"
-    >
         <Jazzicon size={30} user={{ uid: workspace.slug }} />
         <div className="ml-2 py-3 px-4 overflow-x-scroll w-fit md:max-w-[75%] bg-orange-100 dark:bg-stone-700 rounded-t-2xl rounded-br-2xl rounded-bl-sm">
           <span
@@ -66,6 +55,7 @@ function PromptReply({
         </div>
       </div>
     );
-}
+  }
+);
 
 export default memo(PromptReply);

frontend/src/components/WorkspaceChat/ChatContainer/ChatHistory/index.jsx

@@ -1,8 +1,19 @@
 import { Frown } from "react-feather";
 import HistoricalMessage from "./HistoricalMessage";
 import PromptReply from "./PromptReply";
+import { useEffect, useRef } from "react";
 
 export default function ChatHistory({ history = [], workspace }) {
+  const replyRef = useRef(null);
+
+  useEffect(() => {
+    if (replyRef.current) {
+      setTimeout(() => {
+        replyRef.current.scrollIntoView({ behavior: "smooth", block: "end" });
+      }, 700);
+    }
+  }, [history]);
+
   if (history.length === 0) {
     return (
       <div className="flex flex-col h-[89%] md:mt-0 pb-5 w-full justify-center items-center">
@@ -22,48 +33,37 @@ export default function ChatHistory({ history = [], workspace }) {
       className="h-[89%] pb-[100px] md:pt-[50px] md:pt-0 md:pb-5 mx-2 md:mx-0 overflow-y-scroll flex flex-col justify-start no-scroll"
       id="chat-history"
     >
-      {history.map(
+      {history.map((props, index) => {
-        (
+        const isLastMessage = index === history.length - 1;
-          {
+
-            uuid = null,
+        if (props.role === "assistant" && props.animate) {
-            content,
-            sources = [],
-            role,
-            closed = true,
-            pending = false,
-            error = false,
-            animate = false,
-          },
-          index
-        ) => {
-          const isLastBotReply =
-            index === history.length - 1 && role === "assistant";
-          if (isLastBotReply && animate) {
           return (
             <PromptReply
-                key={uuid}
+              key={props.uuid}
-                uuid={uuid}
+              ref={isLastMessage ? replyRef : null}
-                reply={content}
+              uuid={props.uuid}
-                pending={pending}
+              reply={props.content}
-                sources={sources}
+              pending={props.pending}
-                error={error}
+              sources={props.sources}
+              error={props.error}
               workspace={workspace}
-                closed={closed}
+              closed={props.closed}
             />
           );
         }
+
         return (
           <HistoricalMessage
             key={index}
-              message={content}
+            ref={isLastMessage ? replyRef : null}
-              role={role}
+            message={props.content}
+            role={props.role}
             workspace={workspace}
-              sources={sources}
+            sources={props.sources}
-              error={error}
+            error={props.error}
           />
         );
-        }
+      })}
-      )}
     </div>
   );
 }