bigbuffet-rw/app/soapbox/features/group/group-members.tsx

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import debounce from 'lodash/debounce';
import React, { useCallback, useEffect } from 'react';
import { defineMessages, useIntl } from 'react-intl';
import { expandGroupMemberships, fetchGroup, fetchGroupMemberships } from 'soapbox/actions/groups';
import ScrollableList from 'soapbox/components/scrollable-list';
import { CardHeader, CardTitle } from 'soapbox/components/ui';
import AccountContainer from 'soapbox/containers/account-container';
import { useAppDispatch, useAppSelector } from 'soapbox/hooks';
import type { List } from 'soapbox/reducers/group-memberships';
type RouteParams = { id: string };
interface IGroupMembers {
params: RouteParams,
}
const messages = defineMessages({
adminSubheading: { id: 'groups.admin_subheading', defaultMessage: 'Group administrators' },
moderatorSubheading: { id: 'groups.moderator_subheading', defaultMessage: 'Group moderators' },
userSubheading: { id: 'groups.user_subheading', defaultMessage: 'Users' },
});
const GroupMembers: React.FC<IGroupMembers> = (props) => {
const intl = useIntl();
const dispatch = useAppDispatch();
const groupId = props.params.id;
const admins = useAppSelector((state) => state.group_memberships.admin.get(groupId));
const moderators = useAppSelector((state) => state.group_memberships.moderator.get(groupId));
const users = useAppSelector((state) => state.group_memberships.user.get(groupId));
const handleLoadMore = (role: 'admin' | 'moderator' | 'user') => {
dispatch(expandGroupMemberships(groupId, role));
};
const handleLoadMoreAdmins = useCallback(debounce(() => {
handleLoadMore('admin');
}, 300, { leading: true }), []);
const handleLoadMoreModerators = useCallback(debounce(() => {
handleLoadMore('moderator');
}, 300, { leading: true }), []);
const handleLoadMoreUsers = useCallback(debounce(() => {
handleLoadMore('user');
}, 300, { leading: true }), []);
const renderMemberships = (memberships: List | undefined, role: 'admin' | 'moderator' | 'user', handler: () => void) => {
if (!memberships?.isLoading && !memberships?.items.count()) return;
return (
<React.Fragment key={role}>
<CardHeader className='mt-4'>
<CardTitle title={intl.formatMessage(messages[`${role}Subheading`])} />
</CardHeader>
<ScrollableList
scrollKey={`group_${role}s-${groupId}`}
hasMore={!!memberships?.next}
onLoadMore={handler}
isLoading={memberships?.isLoading}
>
{memberships?.items?.map(accountId => <AccountContainer key={accountId} id={accountId} withRelationship={false} />)}
</ScrollableList>
</React.Fragment>
);
};
useEffect(() => {
dispatch(fetchGroup(groupId));
dispatch(fetchGroupMemberships(groupId, 'admin'));
dispatch(fetchGroupMemberships(groupId, 'moderator'));
dispatch(fetchGroupMemberships(groupId, 'user'));
}, [groupId]);
return (
<>
{renderMemberships(admins, 'admin', handleLoadMoreAdmins)}
{renderMemberships(moderators, 'moderator', handleLoadMoreModerators)}
{renderMemberships(users, 'user', handleLoadMoreUsers)}
</>
);
};
export default GroupMembers;