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YuruToot/app/javascript/mastodon/selectors/notifications.ts

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import { createSelector } from '@reduxjs/toolkit';
import { compareId } from 'mastodon/compare_id';
import type { RootState } from 'mastodon/store';
export const selectUnreadNotificationGroupsCount = createSelector(
[
(s: RootState) => s.notificationGroups.lastReadId,
(s: RootState) => s.notificationGroups.pendingGroups,
(s: RootState) => s.notificationGroups.groups,
],
(notificationMarker, pendingGroups, groups) => {
return (
groups.filter(
(group) =>
group.type !== 'gap' &&
group.page_max_id &&
compareId(group.page_max_id, notificationMarker) > 0,
).length +
pendingGroups.filter(
(group) =>
group.type !== 'gap' &&
group.page_max_id &&
compareId(group.page_max_id, notificationMarker) > 0,
).length
);
},
);
export const selectPendingNotificationGroupsCount = createSelector(
[(s: RootState) => s.notificationGroups.pendingGroups],
(pendingGroups) =>
pendingGroups.filter((group) => group.type !== 'gap').length,
);