126 lines
3.5 KiB
JavaScript
126 lines
3.5 KiB
JavaScript
import {
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NOTIFICATIONS_UPDATE,
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NOTIFICATIONS_EXPAND_SUCCESS,
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NOTIFICATIONS_EXPAND_REQUEST,
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NOTIFICATIONS_EXPAND_FAIL,
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NOTIFICATIONS_CLEAR,
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NOTIFICATIONS_SCROLL_TOP,
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} from '../actions/notifications';
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import {
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ACCOUNT_BLOCK_SUCCESS,
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ACCOUNT_MUTE_SUCCESS,
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} from '../actions/accounts';
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import { TIMELINE_DELETE, TIMELINE_DISCONNECT } from '../actions/timelines';
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import { Map as ImmutableMap, List as ImmutableList } from 'immutable';
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const initialState = ImmutableMap({
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items: ImmutableList(),
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hasMore: true,
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top: true,
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unread: 0,
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isLoading: false,
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});
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const notificationToMap = notification => ImmutableMap({
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id: notification.id,
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type: notification.type,
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account: notification.account.id,
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status: notification.status ? notification.status.id : null,
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});
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const normalizeNotification = (state, notification) => {
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const top = state.get('top');
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if (!top) {
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state = state.update('unread', unread => unread + 1);
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}
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return state.update('items', list => {
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if (top && list.size > 40) {
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list = list.take(20);
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}
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return list.unshift(notificationToMap(notification));
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});
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};
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const newer = (m, n) => {
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const mId = m.get('id');
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const nId = n.get('id');
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return mId.length === nId.length ? mId > nId : mId.length > nId.length;
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};
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const expandNormalizedNotifications = (state, notifications, next) => {
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let items = ImmutableList();
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notifications.forEach((n, i) => {
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items = items.set(i, notificationToMap(n));
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});
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return state.withMutations(mutable => {
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if (!items.isEmpty()) {
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mutable.update('items', list => {
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const lastIndex = 1 + list.findLastIndex(
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item => item !== null && (newer(item, items.last()) || item.get('id') === items.last().get('id'))
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);
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const firstIndex = 1 + list.take(lastIndex).findLastIndex(
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item => item !== null && newer(item, items.first())
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);
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return list.take(firstIndex).concat(items, list.skip(lastIndex));
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});
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}
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if (!next) {
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mutable.set('hasMore', true);
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}
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mutable.set('isLoading', false);
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});
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};
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const filterNotifications = (state, relationship) => {
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return state.update('items', list => list.filterNot(item => item.get('account') === relationship.id));
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};
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const updateTop = (state, top) => {
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if (top) {
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state = state.set('unread', 0);
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}
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return state.set('top', top);
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};
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const deleteByStatus = (state, statusId) => {
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return state.update('items', list => list.filterNot(item => item.get('status') === statusId));
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};
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export default function notifications(state = initialState, action) {
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switch(action.type) {
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case NOTIFICATIONS_EXPAND_REQUEST:
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return state.set('isLoading', true);
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case NOTIFICATIONS_EXPAND_FAIL:
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return state.set('isLoading', false);
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case NOTIFICATIONS_SCROLL_TOP:
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return updateTop(state, action.top);
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case NOTIFICATIONS_UPDATE:
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return normalizeNotification(state, action.notification);
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case NOTIFICATIONS_EXPAND_SUCCESS:
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return expandNormalizedNotifications(state, action.notifications, action.next);
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case ACCOUNT_BLOCK_SUCCESS:
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case ACCOUNT_MUTE_SUCCESS:
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return filterNotifications(state, action.relationship);
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case NOTIFICATIONS_CLEAR:
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return state.set('items', ImmutableList()).set('hasMore', false);
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case TIMELINE_DELETE:
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return deleteByStatus(state, action.id);
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case TIMELINE_DISCONNECT:
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return action.timeline === 'home' ?
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state.update('items', items => items.first() ? items.unshift(null) : items) :
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state;
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default:
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return state;
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}
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};
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