chat tweaks

- add page title
- scroll if near bottom
- add tool call group that dynamically updates as tool calls are made
- add bouncing loading indicator and other UI polish

web/public/locales/en/views/chat.json

@@ -1,4 +1,5 @@
 {
+  "documentTitle": "Chat - Frigate",
   "title": "Frigate Chat",
   "subtitle": "Your AI assistant for camera management and insights",
   "placeholder": "Ask anything...",

web/src/components/chat/ChatMessage.tsx

@@ -1,4 +1,4 @@
-import { useState, useEffect, useRef } from "react";
+import { useState, useEffect, useRef, useCallback } from "react";
 import ReactMarkdown from "react-markdown";
 import remarkGfm from "remark-gfm";
 import { useTranslation } from "react-i18next";
@@ -6,6 +6,7 @@ import copy from "copy-to-clipboard";
 import { toast } from "sonner";
 import { FaCopy, FaPencilAlt } from "react-icons/fa";
 import { FaArrowUpLong } from "react-icons/fa6";
+import { LuCheck } from "react-icons/lu";
 import { Button } from "@/components/ui/button";
 import { Textarea } from "@/components/ui/textarea";
 import {
@@ -50,13 +51,17 @@ export function MessageBubble({
     }
   }, [isEditing]);
 
-  const handleCopy = () => {
+  const [copied, setCopied] = useState(false);
+
+  const handleCopy = useCallback(() => {
     const text = content?.trim() || "";
     if (!text) return;
     if (copy(text)) {
+      setCopied(true);
       toast.success(t("button.copiedToClipboard", { ns: "common" }));
+      setTimeout(() => setCopied(false), 2000);
     }
-  };
+  }, [content, t]);
 
   const handleEditClick = () => {
     setDraftContent(content);
@@ -93,7 +98,7 @@ export function MessageBubble({
           value={draftContent}
           onChange={(e) => setDraftContent(e.target.value)}
           onKeyDown={handleEditKeyDown}
-          className="min-h-[80px] w-full resize-y rounded-lg bg-primary px-3 py-2 text-primary-foreground placeholder:text-primary-foreground/60"
+          className="min-h-[80px] w-full resize-y rounded-2xl bg-primary px-4 py-3 text-primary-foreground placeholder:text-primary-foreground/60"
           placeholder={t("placeholder")}
           rows={3}
         />
@@ -124,44 +129,49 @@ export function MessageBubble({
   return (
     <div
       className={cn(
-        "flex flex-col gap-1",
+        "flex max-w-[85%] flex-col gap-1",
         isUser ? "items-end self-end" : "items-start self-start",
       )}
     >
       <div
         className={cn(
-          "rounded-lg px-3 py-2",
+          "rounded-2xl px-4 py-3",
           isUser ? "bg-primary text-primary-foreground" : "bg-muted",
         )}
       >
         {isUser ? (
           content
         ) : (
-          <ReactMarkdown
-            remarkPlugins={[remarkGfm]}
-            components={{
-              table: ({ node: _n, ...props }) => (
-                <table
-                  className="my-2 w-full border-collapse border border-border"
-                  {...props}
-                />
-              ),
-              th: ({ node: _n, ...props }) => (
-                <th
-                  className="border border-border bg-muted/50 px-2 py-1 text-left text-sm font-medium"
-                  {...props}
-                />
-              ),
-              td: ({ node: _n, ...props }) => (
-                <td
-                  className="border border-border px-2 py-1 text-sm"
-                  {...props}
-                />
-              ),
-            }}
-          >
-            {content}
-          </ReactMarkdown>
+          <>
+            <ReactMarkdown
+              remarkPlugins={[remarkGfm]}
+              components={{
+                table: ({ node: _n, ...props }) => (
+                  <table
+                    className="my-2 w-full border-collapse border border-border"
+                    {...props}
+                  />
+                ),
+                th: ({ node: _n, ...props }) => (
+                  <th
+                    className="border border-border bg-muted/50 px-2 py-1 text-left text-sm font-medium"
+                    {...props}
+                  />
+                ),
+                td: ({ node: _n, ...props }) => (
+                  <td
+                    className="border border-border px-2 py-1 text-sm"
+                    {...props}
+                  />
+                ),
+              }}
+            >
+              {content}
+            </ReactMarkdown>
+            {!isComplete && (
+              <span className="ml-1 inline-block h-4 w-0.5 animate-pulse bg-foreground align-middle" />
+            )}
+          </>
         )}
       </div>
       <div className="flex items-center gap-0.5">
@@ -194,7 +204,11 @@ export function MessageBubble({
                 disabled={!content?.trim()}
                 aria-label={t("button.copy", { ns: "common" })}
               >
-                <FaCopy className="size-3" />
+                {copied ? (
+                  <LuCheck className="size-3" />
+                ) : (
+                  <FaCopy className="size-3" />
+                )}
               </Button>
             </TooltipTrigger>
             <TooltipContent>

web/src/components/chat/ChatStartingState.tsx

@@ -75,7 +75,7 @@ export function ChatStartingState({ onSendMessage }: ChatStartingStateProps) {
         </div>
       </div>
 
-      <div className="flex w-full max-w-2xl flex-row items-center gap-2 rounded-xl bg-secondary p-4">
+      <div className="flex w-full max-w-2xl flex-row items-center gap-2 rounded-xl bg-secondary p-3">
         <Input
           className="h-12 w-full flex-1 border-transparent bg-transparent text-base shadow-none focus-visible:ring-0 dark:bg-transparent"
           placeholder={t("placeholder")}

web/src/components/chat/ToolCallBubble.tsx

@@ -7,7 +7,7 @@ import {
 } from "@/components/ui/collapsible";
 import { Button } from "@/components/ui/button";
 import { cn } from "@/lib/utils";
-import { ChevronDown, ChevronRight } from "lucide-react";
+import { LuChevronDown, LuChevronRight } from "react-icons/lu";
 
 type ToolCallBubbleProps = {
   name: string;
@@ -34,7 +34,7 @@ export function ToolCallBubble({
   return (
     <div
       className={cn(
-        "rounded-lg px-3 py-2",
+        "rounded-2xl px-3 py-2",
         isLeft
           ? "self-start bg-muted"
           : "self-end bg-primary text-primary-foreground",
@@ -51,9 +51,9 @@ export function ToolCallBubble({
             )}
           >
             {open ? (
-              <ChevronDown size={12} className="shrink-0" />
+              <LuChevronDown className="size-3 shrink-0" />
             ) : (
-              <ChevronRight size={12} className="shrink-0" />
+              <LuChevronRight className="size-3 shrink-0" />
             )}
             <span className="break-words font-medium">
               {isLeft ? t("call") : t("result")} {normalizedName}

web/src/components/chat/ToolCallsGroup.tsx

@@ -0,0 +1,56 @@
+import { useState } from "react";
+import { useTranslation } from "react-i18next";
+import {
+  Collapsible,
+  CollapsibleContent,
+  CollapsibleTrigger,
+} from "@/components/ui/collapsible";
+import { LuChevronDown, LuChevronRight } from "react-icons/lu";
+import { ToolCallBubble } from "@/components/chat/ToolCallBubble";
+import type { ToolCall } from "@/types/chat";
+
+type ToolCallsGroupProps = {
+  toolCalls: ToolCall[];
+};
+
+export function ToolCallsGroup({ toolCalls }: ToolCallsGroupProps) {
+  const { t } = useTranslation(["views/chat"]);
+  const [open, setOpen] = useState(false);
+
+  if (toolCalls.length === 0) return null;
+
+  return (
+    <Collapsible open={open} onOpenChange={setOpen}>
+      <CollapsibleTrigger className="flex items-center gap-1 rounded-md px-2 py-1 text-xs text-muted-foreground transition-colors hover:bg-muted/50">
+        {open ? (
+          <LuChevronDown className="size-3" />
+        ) : (
+          <LuChevronRight className="size-3" />
+        )}
+        <span>
+          {open ? t("hideTools") : t("showTools", { count: toolCalls.length })}
+        </span>
+      </CollapsibleTrigger>
+      <CollapsibleContent>
+        <div className="mt-1 flex flex-col gap-2">
+          {toolCalls.map((tc, tcIdx) => (
+            <div key={tcIdx} className="flex flex-col gap-2">
+              <ToolCallBubble
+                name={tc.name}
+                arguments={tc.arguments}
+                side="left"
+              />
+              {tc.response && (
+                <ToolCallBubble
+                  name={tc.name}
+                  response={tc.response}
+                  side="right"
+                />
+              )}
+            </div>
+          ))}
+        </div>
+      </CollapsibleContent>
+    </Collapsible>
+  );
+}

web/src/pages/Chat.tsx

@@ -1,12 +1,13 @@
 import { Button } from "@/components/ui/button";
 import { Input } from "@/components/ui/input";
 import { FaArrowUpLong } from "react-icons/fa6";
+import { LuCircleAlert } from "react-icons/lu";
 import { useTranslation } from "react-i18next";
-import { useState, useCallback } from "react";
+import { useState, useCallback, useRef, useEffect } from "react";
 import axios from "axios";
 import { ChatEventThumbnailsRow } from "@/components/chat/ChatEventThumbnailsRow";
 import { MessageBubble } from "@/components/chat/ChatMessage";
-import { ToolCallBubble } from "@/components/chat/ToolCallBubble";
+import { ToolCallsGroup } from "@/components/chat/ToolCallsGroup";
 import { ChatStartingState } from "@/components/chat/ChatStartingState";
 import type { ChatMessage } from "@/types/chat";
 import {
@@ -20,6 +21,21 @@ export default function ChatPage() {
   const [messages, setMessages] = useState<ChatMessage[]>([]);
   const [isLoading, setIsLoading] = useState(false);
   const [error, setError] = useState<string | null>(null);
+  const scrollRef = useRef<HTMLDivElement>(null);
+
+  useEffect(() => {
+    document.title = t("documentTitle");
+  }, [t]);
+
+  // Auto-scroll to bottom when messages change, but only if near bottom
+  useEffect(() => {
+    const el = scrollRef.current;
+    if (!el) return;
+    const isNearBottom = el.scrollHeight - el.scrollTop - el.clientHeight < 150;
+    if (isNearBottom) {
+      el.scrollTo({ top: el.scrollHeight, behavior: "smooth" });
+    }
+  }, [messages]);
 
   const submitConversation = useCallback(
     async (messagesToSend: ChatMessage[]) => {
@@ -77,7 +93,7 @@ export default function ChatPage() {
   );
 
   return (
-    <div className="flex size-full justify-center p-2">
+    <div className="flex size-full justify-center p-2 md:p-4">
       <div className="flex size-full flex-col xl:w-[50%] 3xl:w-[35%]">
         {messages.length === 0 ? (
           <ChatStartingState
@@ -87,83 +103,83 @@ export default function ChatPage() {
             }}
           />
         ) : (
-          <div className="scrollbar-container flex min-h-0 w-full flex-1 flex-col gap-2 overflow-y-auto">
-            {messages.map((msg, i) => {
-              const isStreamingPlaceholder =
-                i === messages.length - 1 &&
-                msg.role === "assistant" &&
-                isLoading &&
-                !msg.content?.trim() &&
-                !(msg.toolCalls && msg.toolCalls.length > 0);
-              if (isStreamingPlaceholder) {
-                return <div key={i} />;
-              }
-              return (
-                <div key={i} className="flex flex-col gap-2">
-                  {msg.role === "assistant" && msg.toolCalls && (
-                    <>
-                      {msg.toolCalls.map((tc, tcIdx) => (
-                        <div key={tcIdx} className="flex flex-col gap-2">
-                          <ToolCallBubble
-                            name={tc.name}
-                            arguments={tc.arguments}
-                            side="left"
-                          />
-                          {tc.response && (
-                            <ToolCallBubble
-                              name={tc.name}
-                              response={tc.response}
-                              side="right"
-                            />
-                          )}
-                        </div>
-                      ))}
-                    </>
-                  )}
-                  <MessageBubble
-                    role={msg.role}
-                    content={msg.content}
-                    messageIndex={i}
-                    onEditSubmit={
-                      msg.role === "user" ? handleEditSubmit : undefined
-                    }
-                    isComplete={
-                      msg.role === "user" ||
-                      !isLoading ||
-                      i < messages.length - 1
-                    }
-                  />
-                  {msg.role === "assistant" &&
-                    (() => {
-                      const isComplete = !isLoading || i < messages.length - 1;
-                      if (!isComplete) return null;
-                      const events = getEventIdsFromSearchObjectsToolCalls(
-                        msg.toolCalls,
-                      );
-                      return <ChatEventThumbnailsRow events={events} />;
-                    })()}
-                </div>
-              );
-            })}
-            {(() => {
-              const lastMsg = messages[messages.length - 1];
-              const showProcessing =
-                isLoading &&
-                lastMsg?.role === "assistant" &&
-                !lastMsg.content?.trim() &&
-                !(lastMsg.toolCalls && lastMsg.toolCalls.length > 0);
-              return showProcessing ? (
-                <div className="self-start rounded-lg bg-muted px-3 py-2 text-muted-foreground">
-                  {t("processing")}
-                </div>
-              ) : null;
-            })()}
-            {error && (
-              <p className="self-start text-sm text-destructive" role="alert">
-                {error}
-              </p>
-            )}
-          </div>
+          <>
+            <div
+              ref={scrollRef}
+              className="scrollbar-container flex min-h-0 w-full flex-1 flex-col gap-3 overflow-y-auto"
+            >
+              {messages.map((msg, i) => {
+                const isLastAssistant =
+                  i === messages.length - 1 && msg.role === "assistant";
+                const isComplete =
+                  msg.role === "user" || !isLoading || !isLastAssistant;
+                const hasToolCalls = msg.toolCalls && msg.toolCalls.length > 0;
+                const hasContent = !!msg.content?.trim();
+                const showProcessing =
+                  isLastAssistant && isLoading && !hasContent;
+
+                // Hide empty placeholder only when there are no tool calls yet
+                if (
+                  isLastAssistant &&
+                  isLoading &&
+                  !hasContent &&
+                  !hasToolCalls
+                )
+                  return (
+                    <div
+                      key={i}
+                      className="flex items-center gap-2 self-start rounded-2xl bg-muted px-5 py-4"
+                    >
+                      <span className="size-2.5 animate-bounce rounded-full bg-muted-foreground/60 [animation-delay:-0.32s]" />
+                      <span className="size-2.5 animate-bounce rounded-full bg-muted-foreground/60 [animation-delay:-0.16s]" />
+                      <span className="size-2.5 animate-bounce rounded-full bg-muted-foreground/60" />
+                    </div>
+                  );
+
+                return (
+                  <div key={i} className="flex flex-col gap-2">
+                    {msg.role === "assistant" && hasToolCalls && (
+                      <ToolCallsGroup toolCalls={msg.toolCalls!} />
+                    )}
+                    {showProcessing ? (
+                      <div className="flex items-center gap-2 self-start rounded-2xl bg-muted px-5 py-4">
+                        <span className="size-2 animate-bounce rounded-full bg-muted-foreground/60 [animation-delay:-0.3s]" />
+                        <span className="size-2 animate-bounce rounded-full bg-muted-foreground/60 [animation-delay:-0.15s]" />
+                        <span className="size-2 animate-bounce rounded-full bg-muted-foreground/60" />
+                      </div>
+                    ) : (
+                      <MessageBubble
+                        role={msg.role}
+                        content={msg.content}
+                        messageIndex={i}
+                        onEditSubmit={
+                          msg.role === "user" ? handleEditSubmit : undefined
+                        }
+                        isComplete={isComplete}
+                      />
+                    )}
+                    {msg.role === "assistant" &&
+                      isComplete &&
+                      (() => {
+                        const events = getEventIdsFromSearchObjectsToolCalls(
+                          msg.toolCalls,
+                        );
+                        return <ChatEventThumbnailsRow events={events} />;
+                      })()}
+                  </div>
+                );
+              })}
+              {error && (
+                <p
+                  className="flex items-center gap-1.5 self-start text-sm text-destructive"
+                  role="alert"
+                >
+                  <LuCircleAlert className="size-3.5 shrink-0" />
+                  {error}
+                </p>
+              )}
+            </div>
+          </>
         )}
         {messages.length > 0 && (
           <ChatEntry
@@ -202,7 +218,7 @@ function ChatEntry({
   };
 
   return (
-    <div className="flex w-full flex-col items-center justify-center rounded-xl bg-secondary p-2">
+    <div className="mt-2 flex w-full flex-col items-center justify-center rounded-xl bg-secondary p-3">
       <div className="flex w-full flex-row items-center gap-2">
         <Input
           className="w-full flex-1 border-transparent bg-transparent shadow-none focus-visible:ring-0 dark:bg-transparent"