[TOOL-2815] Nebula - handle disconnected wallet state, use connected account address in execute config (#5821)

## Problem solved

Short description of the bug fixed or feature added

<!-- start pr-codex -->

---

## PR-Codex overview
This PR primarily focuses on refining the chat functionality and user experience in the `ChatBar` and `ChatPageContent` components. It enhances wallet connection handling, streamlines message sending, and introduces a dialog for when the wallet is disconnected.

### Detailed summary
- Added `e.preventDefault()` in `ChatBar` to prevent default behavior on Enter key.
- Removed unused wallet address fetching in several components.
- Updated `config` type to allow `null` in `Chat` API.
- Introduced `WalletDisconnectedDialog` in `ChatPageContent`.
- Enhanced state management for showing different login pages.
- Improved context filter updates based on wallet address and active chain.
- Added conditional rendering for wallet connection prompts.

> ✨ Ask PR-Codex anything about this PR by commenting with `/codex {your question}`

<!-- end pr-codex -->

Author: MananTank

apps/dashboard/src/app/nebula-app/(app)/api/chat.ts

@@ -13,7 +13,7 @@ export type ContextFilters = {
 export async function promptNebula(params: {
   message: string;
   sessionId: string;
-  config: ExecuteConfig;
+  config: ExecuteConfig | null;
   authToken: string;
   handleStream: (res: ChatStreamedResponse) => void;
   abortController: AbortController;
@@ -24,7 +24,6 @@ export async function promptNebula(params: {
     user_id: "default-user",
     session_id: params.sessionId,
     stream: true,
-    execute_config: params.config,
   };
 
   if (params.contextFilters) {
@@ -34,6 +33,10 @@ export async function promptNebula(params: {
     };
   }
 
+  if (params.config) {
+    body.execute_config = params.config;
+  }
+
   const events = await stream(`${NEXT_PUBLIC_NEBULA_URL}/chat`, {
     method: "POST",
     headers: {

apps/dashboard/src/app/nebula-app/(app)/chat/[session_id]/page.tsx

@@ -1,9 +1,6 @@
 import { redirect } from "next/navigation";
 import { getValidAccount } from "../../../../account/settings/getAccount";
-import {
-  getAuthToken,
-  getAuthTokenWalletAddress,
-} from "../../../../api/lib/getAuthToken";
+import { getAuthToken } from "../../../../api/lib/getAuthToken";
 import { loginRedirect } from "../../../../login/loginRedirect";
 import { getSessionById } from "../../api/session";
 import { ChatPageContent } from "../../components/ChatPageContent";
@@ -22,12 +19,6 @@ export default async function Page(props: {
     loginRedirect(pagePath);
   }
 
-  const accountAddress = await getAuthTokenWalletAddress();
-
-  if (!accountAddress) {
-    loginRedirect(pagePath);
-  }
-
   const session = await getSessionById({
     authToken,
     sessionId: params.session_id,
@@ -39,7 +30,6 @@ export default async function Page(props: {
 
   return (
     <ChatPageContent
-      accountAddress={accountAddress}
       authToken={authToken}
       session={session}
       type="new-chat"

apps/dashboard/src/app/nebula-app/(app)/chat/page.tsx

@@ -1,8 +1,5 @@
 import { getValidAccount } from "../../../account/settings/getAccount";
-import {
-  getAuthToken,
-  getAuthTokenWalletAddress,
-} from "../../../api/lib/getAuthToken";
+import { getAuthToken } from "../../../api/lib/getAuthToken";
 import { loginRedirect } from "../../../login/loginRedirect";
 import { ChatPageContent } from "../components/ChatPageContent";
 
@@ -14,15 +11,8 @@ export default async function Page() {
     loginRedirect();
   }
 
-  const accountAddress = await getAuthTokenWalletAddress();
-
-  if (!accountAddress) {
-    loginRedirect();
-  }
-
   return (
     <ChatPageContent
-      accountAddress={accountAddress}
       authToken={authToken}
       session={undefined}
       type="new-chat"

apps/dashboard/src/app/nebula-app/(app)/components/ChatBar.tsx

@@ -25,6 +25,7 @@ export function Chatbar(props: {
             return;
           }
           if (e.key === "Enter" && !props.isChatStreaming) {
+            e.preventDefault();
             setMessage("");
             props.sendMessage(message);
           }

apps/dashboard/src/app/nebula-app/(app)/components/ChatPageContent.tsx

@@ -1,6 +1,17 @@
 "use client";
+import { Button } from "@/components/ui/button";
+import {
+  Dialog,
+  DialogClose,
+  DialogContent,
+  DialogDescription,
+  DialogHeader,
+  DialogTitle,
+} from "@/components/ui/dialog";
 import { useThirdwebClient } from "@/constants/thirdweb.client";
 import type { Account } from "@3rdweb-sdk/react/hooks/useApi";
+import { ArrowRightIcon } from "lucide-react";
+import Link from "next/link";
 import { useCallback, useEffect, useMemo, useRef, useState } from "react";
 import { useActiveAccount, useActiveWalletChain } from "thirdweb/react";
 import { type ContextFilters, promptNebula } from "../api/chat";
@@ -15,7 +26,6 @@ import { EmptyStateChatPageContent } from "./EmptyStateChatPageContent";
 export function ChatPageContent(props: {
   session: SessionInfo | undefined;
   authToken: string;
-  accountAddress: string;
   type: "landing" | "new-chat";
   account: Account;
   initialPrompt: string | undefined;
@@ -95,12 +105,7 @@ export function ChatPageContent(props: {
   // update the context filters to the current user's wallet address and chain id
   // eslint-disable-next-line no-restricted-syntax
   useEffect(() => {
-    if (
-      !isNewSession ||
-      hasUserUpdatedContextFilters ||
-      !address ||
-      !activeChain
-    ) {
+    if (!isNewSession || hasUserUpdatedContextFilters) {
       return;
     }
 
@@ -109,19 +114,23 @@ export function ChatPageContent(props: {
         ? { ..._contextFilters }
         : {};
 
-      updatedContextFilters.walletAddresses = [address];
-      updatedContextFilters.chainIds = [activeChain.id.toString()];
+      updatedContextFilters.walletAddresses = address ? [address] : [];
+      updatedContextFilters.chainIds = activeChain
+        ? [activeChain.id.toString()]
+        : [];
 
       return updatedContextFilters;
     });
   }, [address, isNewSession, hasUserUpdatedContextFilters, activeChain]);
 
-  const config: ExecuteConfig = useMemo(() => {
-    return {
-      mode: "client",
-      signer_wallet_address: props.accountAddress,
-    };
-  }, [props.accountAddress]);
+  const config: ExecuteConfig | null = useMemo(() => {
+    return address
+      ? {
+          mode: "client",
+          signer_wallet_address: address,
+        }
+      : null;
+  }, [address]);
 
   const [sessionId, _setSessionId] = useState<string | undefined>(
     props.session?.id,
@@ -150,6 +159,7 @@ export function ChatPageContent(props: {
 
   const [isChatStreaming, setIsChatStreaming] = useState(false);
   const [enableAutoScroll, setEnableAutoScroll] = useState(false);
+  const [showConnectModal, setShowConnectModal] = useState(false);
 
   const initSession = useCallback(async () => {
     const session = await createSession({
@@ -163,6 +173,10 @@ export function ChatPageContent(props: {
 
   const handleSendMessage = useCallback(
     async (message: string) => {
+      if (!address) {
+        setShowConnectModal(true);
+        return;
+      }
       setUserHasSubmittedMessage(true);
       setMessages((prev) => [
         ...prev,
@@ -329,6 +343,7 @@ export function ChatPageContent(props: {
       props.authToken,
       messages.length,
       initSession,
+      address,
     ],
   );
 
@@ -350,6 +365,10 @@ export function ChatPageContent(props: {
 
   return (
     <div className="flex grow flex-col overflow-hidden">
+      <WalletDisconnectedDialog
+        open={showConnectModal}
+        onOpenChange={setShowConnectModal}
+      />
       <header className="flex justify-start border-b bg-background p-4">
         <ContextFiltersButton
           contextFilters={contextFilters}
@@ -411,3 +430,35 @@ export function ChatPageContent(props: {
     </div>
   );
 }
+
+function WalletDisconnectedDialog(props: {
+  open: boolean;
+  onOpenChange: (value: boolean) => void;
+}) {
+  return (
+    <Dialog open={props.open} onOpenChange={props.onOpenChange}>
+      <DialogContent className="p-0">
+        <div className="p-6">
+          <DialogHeader>
+            <DialogTitle> Wallet Disconnected </DialogTitle>
+            <DialogDescription>
+              Connect your wallet to continue
+            </DialogDescription>
+          </DialogHeader>
+        </div>
+
+        <div className="flex justify-end gap-3 border-t bg-muted/50 p-6">
+          <DialogClose asChild>
+            <Button variant="outline">Cancel</Button>
+          </DialogClose>
+          <Button asChild>
+            <Link href="/login" className="gap-2">
+              Connect Wallet
+              <ArrowRightIcon className="size-4" />
+            </Link>
+          </Button>
+        </div>
+      </DialogContent>
+    </Dialog>
+  );
+}

apps/dashboard/src/app/nebula-app/(app)/page.tsx

@@ -1,8 +1,5 @@
 import { getValidAccount } from "../../account/settings/getAccount";
-import {
-  getAuthToken,
-  getAuthTokenWalletAddress,
-} from "../../api/lib/getAuthToken";
+import { getAuthToken } from "../../api/lib/getAuthToken";
 import { loginRedirect } from "../../login/loginRedirect";
 import { ChatPageContent } from "./components/ChatPageContent";
 
@@ -20,16 +17,10 @@ export default async function Page(props: {
     loginRedirect();
   }
 
-  const accountAddress = await getAuthTokenWalletAddress();
   const account = await getValidAccount();
 
-  if (!accountAddress) {
-    loginRedirect();
-  }
-
   return (
     <ChatPageContent
-      accountAddress={accountAddress}
       authToken={authToken}
       session={undefined}
       type="landing"

apps/dashboard/src/app/nebula-app/login/NebulaLoginPage.tsx

@@ -12,10 +12,12 @@ export function NebulaLoginPage(props: {
   account: Account | undefined;
 }) {
   const [message, setMessage] = useState<string | undefined>(undefined);
-  const [showLoginPage, setShowLoginPage] = useState<boolean>(false);
-
+  const [showPage, setShowPage] = useState<"connect" | "welcome">(
+    props.account ? "connect" : "welcome",
+  );
   return (
     <div className="relative flex min-h-screen flex-col overflow-hidden bg-background">
+      {/* nav */}
       <header className="border-b">
         <div className="container flex items-center justify-between p-4">
           <NebulaIcon className="size-8 shrink-0 text-foreground" />
@@ -37,28 +39,30 @@ export function NebulaLoginPage(props: {
               Docs
             </Link>
 
-            {!showLoginPage && (
-              <Button size="sm" onClick={() => setShowLoginPage(true)}>
+            {showPage === "welcome" && (
+              <Button size="sm" onClick={() => setShowPage("connect")}>
                 Sign in
               </Button>
             )}
           </div>
         </div>
       </header>
 
-      {showLoginPage ? (
+      {showPage === "connect" && (
         <LoginAndOnboardingPageContent
           account={props.account}
           redirectPath={
             message ? `/?prompt=${encodeURIComponent(message)}` : "/"
           }
         />
-      ) : (
+      )}
+
+      {showPage === "welcome" && (
         <div className="container relative flex max-w-[800px] grow flex-col justify-center overflow-hidden rounded-lg pb-6">
           <EmptyStateChatPageContent
             sendMessage={(msg) => {
               setMessage(msg);
-              setShowLoginPage(true);
+              setShowPage("connect");
             }}
           />
         </div>