(Ready for review and merge) Add Chat Rewind, Duplicate, and Fork Features

app/components/chat/Messages.client.tsx

@@ -3,6 +3,11 @@ import React from 'react';
 import { classNames } from '~/utils/classNames';
 import { AssistantMessage } from './AssistantMessage';
 import { UserMessage } from './UserMessage';
+import * as Tooltip from '@radix-ui/react-tooltip';
+import { useLocation, useNavigate } from '@remix-run/react';
+import { db, chatId } from '~/lib/persistence/useChatHistory';
+import { forkChat } from '~/lib/persistence/db';
+import { toast } from 'react-toastify';
 
 interface MessagesProps {
   id?: string;
@@ -13,41 +18,112 @@ interface MessagesProps {
 
 export const Messages = React.forwardRef<HTMLDivElement, MessagesProps>((props: MessagesProps, ref) => {
   const { id, isStreaming = false, messages = [] } = props;
+  const location = useLocation();
+  const navigate = useNavigate();
+
+  const handleRewind = (messageId: string) => {
+    const searchParams = new URLSearchParams(location.search);
+    searchParams.set('rewindTo', messageId);
+    window.location.search = searchParams.toString();
+  };
+
+  const handleFork = async (messageId: string) => {
+    try {
+      if (!db || !chatId.get()) {
+        toast.error('Chat persistence is not available');
+        return;
+      }
+
+      const urlId = await forkChat(db, chatId.get()!, messageId);
+      window.location.href = `/chat/${urlId}`;
+    } catch (error) {
+      toast.error('Failed to fork chat: ' + (error as Error).message);
+    }
+  };
 
   return (
-    <div id={id} ref={ref} className={props.className}>
-      {messages.length > 0
-        ? messages.map((message, index) => {
-            const { role, content } = message;
-            const isUserMessage = role === 'user';
-            const isFirst = index === 0;
-            const isLast = index === messages.length - 1;
-
-            return (
-              <div
-                key={index}
-                className={classNames('flex gap-4 p-6 w-full rounded-[calc(0.75rem-1px)]', {
-                  'bg-bolt-elements-messages-background': isUserMessage || !isStreaming || (isStreaming && !isLast),
-                  'bg-gradient-to-b from-bolt-elements-messages-background from-30% to-transparent':
-                    isStreaming && isLast,
-                  'mt-4': !isFirst,
-                })}
-              >
-                {isUserMessage && (
-                  <div className="flex items-center justify-center w-[34px] h-[34px] overflow-hidden bg-white text-gray-600 rounded-full shrink-0 self-start">
-                    <div className="i-ph:user-fill text-xl"></div>
+    <Tooltip.Provider delayDuration={200}>
+      <div id={id} ref={ref} className={props.className}>
+        {messages.length > 0
+          ? messages.map((message, index) => {
+              const { role, content, id: messageId } = message;
+              const isUserMessage = role === 'user';
+              const isFirst = index === 0;
+              const isLast = index === messages.length - 1;
+
+              return (
+                <div
+                  key={index}
+                  className={classNames('flex gap-4 p-6 w-full rounded-[calc(0.75rem-1px)]', {
+                    'bg-bolt-elements-messages-background': isUserMessage || !isStreaming || (isStreaming && !isLast),
+                    'bg-gradient-to-b from-bolt-elements-messages-background from-30% to-transparent':
+                      isStreaming && isLast,
+                    'mt-4': !isFirst,
+                  })}
+                >
+                  {isUserMessage && (
+                    <div className="flex items-center justify-center w-[34px] h-[34px] overflow-hidden bg-white text-gray-600 rounded-full shrink-0 self-start">
+                      <div className="i-ph:user-fill text-xl"></div>
+                    </div>
+                  )}
+                  <div className="grid grid-col-1 w-full">
+                    {isUserMessage ? <UserMessage content={content} /> : <AssistantMessage content={content} />}
                   </div>
-                )}
-                <div className="grid grid-col-1 w-full">
-                  {isUserMessage ? <UserMessage content={content} /> : <AssistantMessage content={content} />}
+                  {!isUserMessage && (<div className="flex gap-2">
+                    <Tooltip.Root>
+                      <Tooltip.Trigger asChild>
+                        {messageId && (<button
+                          onClick={() => handleRewind(messageId)}
+                          key='i-ph:arrow-u-up-left'
+                          className={classNames(
+                            'i-ph:arrow-u-up-left',
+                            'text-xl text-bolt-elements-textSecondary hover:text-bolt-elements-textPrimary transition-colors'
+                          )}
+                        />)}
+                      </Tooltip.Trigger>
+                      <Tooltip.Portal>
+                        <Tooltip.Content
+                          className="bg-bolt-elements-tooltip-background text-bolt-elements-textPrimary px-3 py-2 rounded-lg text-sm shadow-lg"
+                          sideOffset={5}
+                          style={{zIndex: 1000}}
+                        >
+                          Revert to this message
+                          <Tooltip.Arrow className="fill-bolt-elements-tooltip-background" />
+                        </Tooltip.Content>
+                      </Tooltip.Portal>
+                    </Tooltip.Root>
+
+                    <Tooltip.Root>
+                      <Tooltip.Trigger asChild>
+                        <button
+                          onClick={() => handleFork(messageId)}
+                          key='i-ph:git-fork'
+                          className={classNames(
+                            'i-ph:git-fork',
+                            'text-xl text-bolt-elements-textSecondary hover:text-bolt-elements-textPrimary transition-colors'
+                          )}
+                        />
+                      </Tooltip.Trigger>
+                      <Tooltip.Portal>
+                        <Tooltip.Content
+                          className="bg-bolt-elements-tooltip-background text-bolt-elements-textPrimary px-3 py-2 rounded-lg text-sm shadow-lg"
+                          sideOffset={5}
+                          style={{zIndex: 1000}}
+                        >
+                          Fork chat from this message
+                          <Tooltip.Arrow className="fill-bolt-elements-tooltip-background" />
+                        </Tooltip.Content>
+                      </Tooltip.Portal>
+                    </Tooltip.Root>
+                  </div>)}
                 </div>
-              </div>
-            );
-          })
-        : null}
-      {isStreaming && (
-        <div className="text-center w-full text-bolt-elements-textSecondary i-svg-spinners:3-dots-fade text-4xl mt-4"></div>
-      )}
-    </div>
+              );
+            })
+          : null}
+        {isStreaming && (
+          <div className="text-center w-full text-bolt-elements-textSecondary i-svg-spinners:3-dots-fade text-4xl mt-4"></div>
+        )}
+      </div>
+    </Tooltip.Provider>
   );
 });

app/components/sidebar/HistoryItem.tsx

@@ -5,9 +5,10 @@ import { type ChatHistoryItem } from '~/lib/persistence';
 interface HistoryItemProps {
   item: ChatHistoryItem;
   onDelete?: (event: React.UIEvent) => void;
+  onDuplicate?: (id: string) => void;
 }
 
-export function HistoryItem({ item, onDelete }: HistoryItemProps) {
+export function HistoryItem({ item, onDelete, onDuplicate }: HistoryItemProps) {
   const [hovering, setHovering] = useState(false);
   const hoverRef = useRef<HTMLDivElement>(null);
 
@@ -44,7 +45,14 @@ export function HistoryItem({ item, onDelete }: HistoryItemProps) {
         {item.description}
         <div className="absolute right-0 z-1 top-0 bottom-0 bg-gradient-to-l from-bolt-elements-background-depth-2 group-hover:from-bolt-elements-background-depth-3 to-transparent w-10 flex justify-end group-hover:w-15 group-hover:from-45%">
           {hovering && (
-            <div className="flex items-center p-1 text-bolt-elements-textSecondary hover:text-bolt-elements-item-contentDanger">
+            <div className="flex items-center p-1 text-bolt-elements-textSecondary">
+              {onDuplicate && (
+                <button
+                  className="i-ph:copy scale-110 mr-2"
+                  onClick={() => onDuplicate?.(item.id)}
+                  title="Duplicate chat"
+                />
+              )}
               <Dialog.Trigger asChild>
                 <button
                   className="i-ph:trash scale-110"

app/components/sidebar/Menu.client.tsx

@@ -4,7 +4,7 @@ import { toast } from 'react-toastify';
 import { Dialog, DialogButton, DialogDescription, DialogRoot, DialogTitle } from '~/components/ui/Dialog';
 import { IconButton } from '~/components/ui/IconButton';
 import { ThemeSwitch } from '~/components/ui/ThemeSwitch';
-import { db, deleteById, getAll, chatId, type ChatHistoryItem } from '~/lib/persistence';
+import { db, deleteById, getAll, chatId, type ChatHistoryItem, useChatHistory } from '~/lib/persistence';
 import { cubicEasingFn } from '~/utils/easings';
 import { logger } from '~/utils/logger';
 import { HistoryItem } from './HistoryItem';
@@ -34,6 +34,7 @@ const menuVariants = {
 type DialogContent = { type: 'delete'; item: ChatHistoryItem } | null;
 
 export function Menu() {
+  const { duplicateCurrentChat } = useChatHistory();
   const menuRef = useRef<HTMLDivElement>(null);
   const [list, setList] = useState<ChatHistoryItem[]>([]);
   const [open, setOpen] = useState(false);
@@ -99,6 +100,17 @@ export function Menu() {
     };
   }, []);
 
+  const handleDeleteClick = (event: React.UIEvent, item: ChatHistoryItem) => {
+    event.preventDefault();
+
+    setDialogContent({ type: 'delete', item });
+  };
+
+  const handleDuplicate = async (id: string) => {
+    await duplicateCurrentChat(id);
+    loadEntries(); // Reload the list after duplication
+  };
+
   return (
     <motion.div
       ref={menuRef}
@@ -128,7 +140,12 @@ export function Menu() {
                   {category}
                 </div>
                 {items.map((item) => (
-                  <HistoryItem key={item.id} item={item} onDelete={() => setDialogContent({ type: 'delete', item })} />
+                  <HistoryItem
+                    key={item.id}
+                    item={item}
+                    onDelete={(event) => handleDeleteClick(event, item)}
+                    onDuplicate={() => handleDuplicate(item.id)}
+                  />
                 ))}
               </div>
             ))}

app/lib/persistence/db.ts

@@ -158,3 +158,50 @@ async function getUrlIds(db: IDBDatabase): Promise<string[]> {
     };
   });
 }
+
+export async function forkChat(db: IDBDatabase, chatId: string, messageId: string): Promise<string> {
+  const chat = await getMessages(db, chatId);
+  if (!chat) throw new Error('Chat not found');
+
+  // Find the index of the message to fork at
+  const messageIndex = chat.messages.findIndex(msg => msg.id === messageId);
+  if (messageIndex === -1) throw new Error('Message not found');
+
+  // Get messages up to and including the selected message
+  const messages = chat.messages.slice(0, messageIndex + 1);
+
+  // Generate new IDs
+  const newId = await getNextId(db);
+  const urlId = await getUrlId(db, newId);
+
+  // Create the forked chat
+  await setMessages(
+    db,
+    newId,
+    messages,
+    urlId,
+    chat.description ? `${chat.description} (fork)` : 'Forked chat'
+  );
+
+  return urlId;
+}
+
+export async function duplicateChat(db: IDBDatabase, id: string): Promise<string> {
+  const chat = await getMessages(db, id);
+  if (!chat) {
+    throw new Error('Chat not found');
+  }
+
+  const newId = await getNextId(db);
+  const newUrlId = await getUrlId(db, newId); // Get a new urlId for the duplicated chat
+
+  await setMessages(
+    db,
+    newId,
+    chat.messages,
+    newUrlId, // Use the new urlId
+    `${chat.description || 'Chat'} (copy)`
+  );
+
+  return newUrlId; // Return the urlId instead of id for navigation
+}

app/lib/persistence/useChatHistory.ts

@@ -1,10 +1,10 @@
-import { useLoaderData, useNavigate } from '@remix-run/react';
+import { useLoaderData, useNavigate, useSearchParams } from '@remix-run/react';
 import { useState, useEffect } from 'react';
 import { atom } from 'nanostores';
 import type { Message } from 'ai';
 import { toast } from 'react-toastify';
 import { workbenchStore } from '~/lib/stores/workbench';
-import { getMessages, getNextId, getUrlId, openDatabase, setMessages } from './db';
+import { getMessages, getNextId, getUrlId, openDatabase, setMessages, duplicateChat } from './db';
 
 export interface ChatHistoryItem {
   id: string;
@@ -24,6 +24,7 @@ export const description = atom<string | undefined>(undefined);
 export function useChatHistory() {
   const navigate = useNavigate();
   const { id: mixedId } = useLoaderData<{ id?: string }>();
+  const [searchParams] = useSearchParams();
 
   const [initialMessages, setInitialMessages] = useState<Message[]>([]);
   const [ready, setReady] = useState<boolean>(false);
@@ -44,7 +45,12 @@ export function useChatHistory() {
       getMessages(db, mixedId)
         .then((storedMessages) => {
           if (storedMessages && storedMessages.messages.length > 0) {
-            setInitialMessages(storedMessages.messages);
+            const rewindId = searchParams.get('rewindTo');
+            const filteredMessages = rewindId
+              ? storedMessages.messages.slice(0, storedMessages.messages.findIndex((m) => m.id === rewindId) + 1)
+              : storedMessages.messages;
+
+            setInitialMessages(filteredMessages);
             setUrlId(storedMessages.urlId);
             description.set(storedMessages.description);
             chatId.set(storedMessages.id);
@@ -93,6 +99,19 @@ export function useChatHistory() {
 
       await setMessages(db, chatId.get() as string, messages, urlId, description.get());
     },
+    duplicateCurrentChat: async (listItemId:string) => {
+      if (!db || (!mixedId && !listItemId)) {
+        return;
+      }
+
+      try {
+        const newId = await duplicateChat(db, mixedId || listItemId);
+        navigate(`/chat/${newId}`);
+        toast.success('Chat duplicated successfully');
+      } catch (error) {
+        toast.error('Failed to duplicate chat');
+      }
+    }
   };
 }
 

eslint.config.mjs

@@ -4,7 +4,7 @@ import { getNamingConventionRule, tsFileExtensions } from '@blitz/eslint-plugin/
 
 export default [
   {
-    ignores: ['**/dist', '**/node_modules', '**/.wrangler', '**/bolt/build'],
+    ignores: ['**/dist', '**/node_modules', '**/.wrangler', '**/bolt/build', '**/.history'],
   },
   ...blitzPlugin.configs.recommended(),
   {

package.json

@@ -54,6 +54,7 @@
     "@openrouter/ai-sdk-provider": "^0.0.5",
     "@radix-ui/react-dialog": "^1.1.1",
     "@radix-ui/react-dropdown-menu": "^2.1.1",
+    "@radix-ui/react-tooltip": "^1.1.4",
     "@remix-run/cloudflare": "^2.10.2",
     "@remix-run/cloudflare-pages": "^2.10.2",
     "@remix-run/react": "^2.10.2",