feat(mentions): implement user message rendering with mention chips for referenced documents

This commit is contained in:
Anish Sarkar 2026-04-28 18:36:49 +05:30
parent 1427809119
commit 294c719965

View file

@ -1,11 +1,12 @@
import { ActionBarPrimitive, AuiIf, MessagePrimitive, useAuiState } from "@assistant-ui/react";
import { useAtomValue } from "jotai";
import { CheckIcon, CopyIcon, FileText, Pencil } from "lucide-react";
import { CheckIcon, CopyIcon, Pencil } from "lucide-react";
import Image from "next/image";
import { type FC, useState } from "react";
import { currentThreadAtom } from "@/atoms/chat/current-thread.atom";
import { messageDocumentsMapAtom } from "@/atoms/chat/mentioned-documents.atom";
import { TooltipIconButton } from "@/components/assistant-ui/tooltip-icon-button";
import { getConnectorIcon } from "@/contracts/enums/connectorIcons";
interface AuthorMetadata {
displayName: string | null;
@ -48,6 +49,19 @@ const UserAvatar: FC<AuthorMetadata> = ({ displayName, avatarUrl }) => {
export const UserMessage: FC = () => {
const messageId = useAuiState(({ message }) => message?.id);
const messageText = useAuiState(({ message }) =>
(message?.content ?? [])
.map((part) =>
typeof part === "object" &&
part !== null &&
"type" in part &&
(part as { type?: string }).type === "text" &&
"text" in part
? String((part as { text?: string }).text ?? "")
: ""
)
.join("")
);
const messageDocumentsMap = useAtomValue(messageDocumentsMapAtom);
const mentionedDocs = messageId ? messageDocumentsMap[messageId] : undefined;
const metadata = useAuiState(({ message }) => message?.metadata);
@ -63,22 +77,12 @@ export const UserMessage: FC = () => {
<div className="col-start-2 min-w-0">
<div className="aui-user-message-content-wrapper flex items-end gap-2">
<div className="relative flex-1 min-w-0">
{mentionedDocs && mentionedDocs.length > 0 && (
<div className="flex flex-wrap items-end gap-2 mb-2 justify-end">
{mentionedDocs?.map((doc) => (
<span
key={`${doc.document_type}:${doc.id}`}
className="inline-flex items-center gap-1 px-2 py-0.5 rounded-full bg-primary/10 text-xs font-medium text-primary border border-primary/20"
title={doc.title}
>
<FileText className="size-3" />
<span className="max-w-[150px] truncate">{doc.title}</span>
</span>
))}
</div>
)}
<div className="aui-user-message-content wrap-break-word rounded-2xl bg-muted px-4 py-2.5 text-foreground">
<MessagePrimitive.Parts />
{mentionedDocs && mentionedDocs.length > 0 ? (
<UserMessageWithMentionChips text={messageText} mentionedDocs={mentionedDocs} />
) : (
<MessagePrimitive.Parts />
)}
</div>
<div className="absolute right-0 top-full mt-1 z-10 opacity-100 pointer-events-auto md:opacity-0 md:pointer-events-none md:transition-opacity md:duration-200 md:delay-300 md:group-hover/user-msg:opacity-100 md:group-hover/user-msg:delay-0 md:group-hover/user-msg:pointer-events-auto">
<UserActionBar />
@ -95,6 +99,64 @@ export const UserMessage: FC = () => {
);
};
const UserMessageWithMentionChips: FC<{
text: string;
mentionedDocs: { id: number; title: string; document_type: string }[];
}> = ({ text, mentionedDocs }) => {
type Segment =
| { type: "text"; value: string; start: number }
| { type: "mention"; doc: { id: number; title: string; document_type: string }; start: number };
const tokens = mentionedDocs
.map((doc) => ({ doc, token: `@${doc.title}` }))
.sort((a, b) => b.token.length - a.token.length);
const segments: Segment[] = [];
let i = 0;
let buffer = "";
let bufferStart = 0;
while (i < text.length) {
const tokenMatch = tokens.find(({ token }) => text.startsWith(token, i));
if (tokenMatch) {
if (buffer) {
segments.push({ type: "text", value: buffer, start: bufferStart });
buffer = "";
}
segments.push({ type: "mention", doc: tokenMatch.doc, start: i });
i += tokenMatch.token.length;
bufferStart = i;
continue;
}
if (!buffer) bufferStart = i;
buffer += text[i];
i += 1;
}
if (buffer) {
segments.push({ type: "text", value: buffer, start: bufferStart });
}
return (
<span className="whitespace-pre-wrap break-words">
{segments.map((segment) =>
segment.type === "text" ? (
<span key={`txt-${segment.start}`}>{segment.value}</span>
) : (
<span
key={`mention-${segment.doc.document_type}:${segment.doc.id}-${segment.start}`}
className="inline-flex items-center gap-1 mx-0.5 px-1 py-0.5 rounded bg-primary/10 text-xs font-bold text-primary/60 select-none align-baseline"
title={segment.doc.title}
>
<span className="flex items-center text-muted-foreground">
{getConnectorIcon(segment.doc.document_type ?? "UNKNOWN", "h-3 w-3")}
</span>
<span className="max-w-[120px] truncate">{segment.doc.title}</span>
</span>
)
)}
</span>
);
};
const UserActionBar: FC = () => {
const isThreadRunning = useAuiState(({ thread }) => thread.isRunning);