puyopuyotetr.is/app/javascript/mastodon/selectors/settings.ts

import { createSelector } from '@reduxjs/toolkit';

import type { RootState } from 'mastodon/store';

/* eslint-disable @typescript-eslint/no-unsafe-call, @typescript-eslint/no-unsafe-member-access */
// state.settings is not yet typed, so we disable some ESLint checks for those selectors
export const selectSettingsNotificationsShows = createSelector(
  [
    (state) =>
      state.settings.getIn(['notifications', 'shows']) as Immutable.Map<
        string,
        boolean
      >,
  ],
  (shows) => shows.toJS() as Record<string, boolean>,
);

export const selectSettingsNotificationsExcludedTypes = createSelector(
  [selectSettingsNotificationsShows],
  (shows) =>
    Object.entries(shows)
      .filter(([_type, enabled]) => !enabled)
      .map(([type, _enabled]) => type),
);

export const selectSettingsNotificationsQuickFilterShow = (state: RootState) =>
  state.settings.getIn(['notifications', 'quickFilter', 'show']) as boolean;

export const selectSettingsNotificationsQuickFilterActive = (
  state: RootState,
) => state.settings.getIn(['notifications', 'quickFilter', 'active']) as string;

export const selectSettingsNotificationsQuickFilterAdvanced = (
  state: RootState,
) =>
  state.settings.getIn(['notifications', 'quickFilter', 'advanced']) as boolean;

export const selectSettingsNotificationsShowUnread = (state: RootState) =>
  state.settings.getIn(['notifications', 'showUnread']) as boolean;

export const selectNeedsNotificationPermission = (state: RootState) =>
  (state.settings.getIn(['notifications', 'alerts']).includes(true) &&
    state.notifications.get('browserSupport') &&
    state.notifications.get('browserPermission') === 'default' &&
    !state.settings.getIn([
      'notifications',
      'dismissPermissionBanner',
    ])) as boolean;

export const selectSettingsNotificationsMinimizeFilteredBanner = (
  state: RootState,
) =>
  state.settings.getIn(['notifications', 'minimizeFilteredBanner']) as boolean;

export const selectSettingsNotificationsGroupFollows = (state: RootState) =>
  state.settings.getIn(['notifications', 'group', 'follow']) as boolean;

/* eslint-enable @typescript-eslint/no-unsafe-call, @typescript-eslint/no-unsafe-member-access */