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import { useMutation, useQueryClient } from "@tanstack/react-query";
import { EllipsisMenuItem } from "components/EllipsisMenu";
import Snackbar from "components/Snackbar";
import MakeCoOrganizerDialog from "features/communities/events/MakeCoOrganizerDialog";
import { eventOrganizersKey } from "features/queryKeys";
import useCurrentUser from "features/userQueries/useCurrentUser";
import { Empty } from "google-protobuf/google/protobuf/empty_pb";
import { RpcError } from "grpc-web";
import { useTranslation } from "i18n";
import { COMMUNITIES } from "i18n/namespaces";
import { LiteUser } from "proto/api_pb";
import { Event } from "proto/events_pb";
import { useMemo, useState } from "react";
import { service } from "service";
import EventUsers from "./EventUsers";
import { useEventAttendees, useEventOrganizers } from "./hooks";
interface EventAttendeesProps {
event: Event.AsObject;
}
const PAGE_SIZE = 9;
export default function EventAttendees({ event }: EventAttendeesProps) {
const { data, error, hasNextPage, fetchNextPage, isLoading } =
useEventAttendees({
eventId: event.eventId,
type: "summary",
pageSize: PAGE_SIZE,
});
const [pageIndex, setPageIndex] = useState(0);
const currentPage = data?.pages?.[pageIndex];
const pagesLength = data?.pages.length ?? 0;
const handlePreviousPageClick = () => {
setPageIndex((current) => Math.max(current - 1, 0));
};
const handleNextPageClick = async () => {
Iif (pageIndex < pagesLength - 1) {
setPageIndex((current) => current + 1);
return;
}
Eif (hasNextPage) {
await fetchNextPage();
setPageIndex((current) => current + 1);
}
};
const { organizerIds } = useEventOrganizers({
eventId: event.eventId,
type: "all",
});
// Optimize searching for organizer ids
const organizerIdSet = useMemo(() => {
const set = new Set<number>();
if (organizerIds) {
organizerIds.forEach((id) => {
set.add(id);
});
}
return set;
}, [organizerIds]);
const currentUser = useCurrentUser();
const isCoOrganizedByCurrentUser = useMemo(
() => currentUser.data && organizerIdSet.has(currentUser.data.userId),
[currentUser.data, organizerIdSet],
);
const { t } = useTranslation([COMMUNITIES]);
const queryClient = useQueryClient();
const [userToPromote, setUserToPromote] = useState<
undefined | LiteUser.AsObject
>();
const [isCoOrganizerDialogOpen, setIsCoOrganizerDialogOpen] = useState(false);
const { mutate: makeEventOrganizer, error: mutationError } = useMutation<
Empty.AsObject,
RpcError,
number
>({
mutationFn: (userId) =>
service.events.inviteEventOrganizer(event.eventId, userId),
onSuccess: () => {
queryClient.invalidateQueries({
queryKey: eventOrganizersKey({ eventId: event.eventId, type: "all" }),
});
},
});
const getUserMenuItems = (
user: LiteUser.AsObject,
): EllipsisMenuItem[] | undefined => {
if (
user.userId === currentUser.data?.userId ||
organizerIdSet.has(user.userId)
) {
return undefined;
}
return [
{
icon: Add,
onClick: () => {
setUserToPromote(user);
setIsCoOrganizerDialogOpen(true);
},
label: t("communities:make_co_organizer.title"),
},
];
};
return (
<>
<EventUsers
emptyState={t("communities:no_attendees")}
error={error}
hasNextPage={hasNextPage}
userIds={currentPage?.attendeeUserIdsList}
title={t("communities:attendees")}
layout="grid"
isLoading={isLoading}
pagination={{
pageIndex: pageIndex,
currentPage: currentPage,
handlePreviousPageClick: handlePreviousPageClick,
handleNextPageClick: handleNextPageClick,
}}
getUserMenuItems={
isCoOrganizedByCurrentUser ? getUserMenuItems : undefined
}
attendeeCount={event.goingCount}
/>
<MakeCoOrganizerDialog
username={userToPromote?.name ?? ""}
eventName={event.title ?? ""}
open={isCoOrganizerDialogOpen}
onClose={() => setIsCoOrganizerDialogOpen(false)}
onSubmit={() => {
Eif (userToPromote) {
makeEventOrganizer(userToPromote.userId);
}
setIsCoOrganizerDialogOpen(false);
}}
/>
{mutationError && (
<Snackbar severity="error">{mutationError?.message}</Snackbar>
)}
</>
);
}
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