mastodon/app/assets/javascripts/components/selectors/index.jsx

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import { createSelector } from 'reselect'
import Immutable from 'immutable';
const getStatuses = state => state.getIn(['timelines', 'statuses']);
const getAccounts = state => state.getIn(['timelines', 'accounts']);
const getAccountBase = (state, id) => state.getIn(['timelines', 'accounts', id], null);
const getAccountRelationship = (state, id) => state.getIn(['timelines', 'relationships', id]);
export const getAccount = createSelector([getAccountBase, getAccountRelationship], (base, relationship) => {
if (base === null) {
return null;
}
return base.set('relationship', relationship);
});
const getStatusBase = (state, id) => state.getIn(['timelines', 'statuses', id], null);
export const getStatus = createSelector([getStatusBase, getStatuses, getAccounts], (base, statuses, accounts) => {
if (base === null) {
return null;
}
return assembleStatus(base.get('id'), statuses, accounts);
});
const getAccountTimelineIds = (state, id) => state.getIn(['timelines', 'accounts_timelines', id], Immutable.List());
const assembleStatus = (id, statuses, accounts) => {
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let status = statuses.get(id, null);
if (status === null) {
return null;
}
let reblog = statuses.get(status.get('reblog'), null);
if (reblog !== null) {
reblog = reblog.set('account', accounts.get(reblog.get('account')));
}
return status.set('reblog', reblog).set('account', accounts.get(status.get('account')));
};
const assembleStatusList = (ids, statuses, accounts) => {
return ids.map(statusId => assembleStatus(statusId, statuses, accounts)).filterNot(status => status === null);
};
export const getAccountTimeline = createSelector([getAccountTimelineIds, getStatuses, getAccounts], assembleStatusList);
const getTimelineIds = (state, timelineType) => state.getIn(['timelines', timelineType]);
export const makeGetTimeline = () => {
return createSelector([getTimelineIds, getStatuses, getAccounts], assembleStatusList);
};
const getStatusAncestorsIds = (state, id) => state.getIn(['timelines', 'ancestors', id], Immutable.OrderedSet());
export const getStatusAncestors = createSelector([getStatusAncestorsIds, getStatuses, getAccounts], assembleStatusList);
const getStatusDescendantsIds = (state, id) => state.getIn(['timelines', 'descendants', id], Immutable.OrderedSet());
export const getStatusDescendants = createSelector([getStatusDescendantsIds, getStatuses, getAccounts], assembleStatusList);
const getNotificationsBase = state => state.get('notifications');
export const getNotifications = createSelector([getNotificationsBase], (base) => {
let arr = [];
base.forEach(item => {
arr.push({
message: item.get('message'),
title: item.get('title'),
key: item.get('key'),
dismissAfter: 5000
});
});
return arr;
});
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const getSuggestionsBase = (state) => state.getIn(['timelines', 'suggestions']);
export const getSuggestions = createSelector([getSuggestionsBase, getAccounts], (base, accounts) => {
return base.map(accountId => accounts.get(accountId));
});