snapshot of https://github.com/RocketChat/Rocket.Chat.git (develop, 2026-09-16; blobs > 131072B omitted)

apps/meteor/client/components/message/header/hooks/useMessageRoles.ts

@@ -0,0 +1,30 @@
+import type { IRole, IRoom, IUser } from '@rocket.chat/core-typings';
+import { useCallback } from 'react';
+import { useShallow } from 'zustand/shallow';
+
+import type { RoomRoles } from '../../../../hooks/useRoomRolesQuery';
+import { useRoomRolesQuery } from '../../../../hooks/useRoomRolesQuery';
+import type { UserRoles } from '../../../../hooks/useUserRolesQuery';
+import { useUserRolesQuery } from '../../../../hooks/useUserRolesQuery';
+import { Roles } from '../../../../stores';
+
+export const useMessageRoles = (userId: IUser['_id'] | undefined, roomId: IRoom['_id'], shouldLoadRoles: boolean): Array<string> => {
+	const { data: userRoles } = useUserRolesQuery({
+		select: useCallback((records: UserRoles[]) => records.find((record) => record.uid === userId)?.roles ?? [], [userId]),
+		enabled: shouldLoadRoles && !!userId,
+	});
+
+	const { data: roomRoles } = useRoomRolesQuery(roomId, {
+		select: useCallback((records: RoomRoles[]) => records.find((record) => record.u._id === userId)?.roles ?? [], [userId]),
+		enabled: shouldLoadRoles && !!userId,
+	});
+
+	const predicate = useCallback(
+		(record: IRole): boolean => {
+			return !!record.description && [...(userRoles ?? []), ...(roomRoles ?? [])].includes(record._id);
+		},
+		[roomRoles, userRoles],
+	);
+
+	return Roles.use(useShallow((state) => state.filter(predicate).map(({ description }) => description)));
+};