mirror of
https://git.kescher.at/CatCatNya/catstodon.git
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312 lines
13 KiB
JavaScript
312 lines
13 KiB
JavaScript
import { fromJS, Map as ImmutableMap, List as ImmutableList } from 'immutable';
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import { blockDomainSuccess } from 'mastodon/actions/domain_blocks';
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import { timelineDelete } from 'mastodon/actions/timelines_typed';
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import {
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authorizeFollowRequestSuccess,
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blockAccountSuccess,
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muteAccountSuccess,
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rejectFollowRequestSuccess,
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} from '../actions/accounts';
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import {
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focusApp,
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unfocusApp,
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} from '../actions/app';
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import {
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fetchMarkers,
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} from '../actions/markers';
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import { clearNotifications } from '../actions/notification_groups';
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import {
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notificationsUpdate,
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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_FILTER_SET,
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NOTIFICATIONS_SCROLL_TOP,
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NOTIFICATIONS_LOAD_PENDING,
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NOTIFICATIONS_MOUNT,
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NOTIFICATIONS_UNMOUNT,
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NOTIFICATIONS_MARK_AS_READ,
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NOTIFICATIONS_SET_BROWSER_SUPPORT,
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NOTIFICATIONS_SET_BROWSER_PERMISSION,
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} from '../actions/notifications';
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import { disconnectTimeline } from '../actions/timelines';
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import { compareId } from '../compare_id';
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const initialState = ImmutableMap({
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pendingItems: ImmutableList(),
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items: ImmutableList(),
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hasMore: true,
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top: false,
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mounted: 0,
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unread: 0,
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lastReadId: '0',
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readMarkerId: '0',
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isTabVisible: true,
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isLoading: 0,
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browserSupport: false,
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browserPermission: 'default',
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});
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export 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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created_at: notification.created_at,
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status: notification.status ? notification.status.id : null,
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report: notification.report ? fromJS(notification.report) : null,
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event: notification.event ? fromJS(notification.event) : null,
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moderation_warning: notification.moderation_warning ? fromJS(notification.moderation_warning) : null,
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});
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const normalizeNotification = (state, notification, usePendingItems) => {
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const top = state.get('top');
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// Under currently unknown conditions, the client may receive duplicates from the server
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if (state.get('pendingItems').some((item) => item?.get('id') === notification.id) || state.get('items').some((item) => item?.get('id') === notification.id)) {
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return state;
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}
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if (usePendingItems || !state.get('pendingItems').isEmpty()) {
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return state.update('pendingItems', list => list.unshift(notificationToMap(notification))).update('unread', unread => unread + 1);
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}
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if (shouldCountUnreadNotifications(state)) {
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state = state.update('unread', unread => unread + 1);
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} else {
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state = state.set('lastReadId', notification.id);
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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 expandNormalizedNotifications = (state, notifications, next, isLoadingMore, isLoadingRecent, usePendingItems) => {
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// This method is pretty tricky because:
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// - existing notifications might be out of order
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// - the existing notifications may have gaps, most often explicitly noted with a `null` item
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// - ideally, we don't want it to reorder existing items
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// - `notifications` may include items that are already included
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// - this function can be called either to fill in a gap, or load newer items
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const lastReadId = state.get('lastReadId');
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const newItems = ImmutableList(notifications.map(notificationToMap));
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return state.withMutations(mutable => {
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if (!newItems.isEmpty()) {
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usePendingItems = isLoadingRecent && (usePendingItems || !mutable.get('pendingItems').isEmpty());
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mutable.update(usePendingItems ? 'pendingItems' : 'items', oldItems => {
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// If called to poll *new* notifications, we just need to add them on top without duplicates
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if (isLoadingRecent) {
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const idsToCheck = oldItems.map(item => item?.get('id')).toSet();
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const insertedItems = newItems.filterNot(item => idsToCheck.includes(item.get('id')));
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return insertedItems.concat(oldItems);
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}
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// If called to expand more (presumably older than any known to the WebUI), we just have to
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// add them to the bottom without duplicates
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if (isLoadingMore) {
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const idsToCheck = oldItems.map(item => item?.get('id')).toSet();
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const insertedItems = newItems.filterNot(item => idsToCheck.includes(item.get('id')));
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return oldItems.concat(insertedItems);
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}
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// Now this gets tricky, as we don't necessarily know for sure where the gap to fill is,
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// and some items in the timeline may not be properly ordered.
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// However, we know that `newItems.last()` is the oldest item that was requested and that
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// there is no “hole” between `newItems.last()` and `newItems.first()`.
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// First, find the furthest (if properly sorted, oldest) item in the notifications that is
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// newer than the oldest fetched one, as it's most likely that it delimits the gap.
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// Start the gap *after* that item.
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const lastIndex = oldItems.findLastIndex(item => item !== null && compareId(item.get('id'), newItems.last().get('id')) >= 0) + 1;
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// Then, try to find the furthest (if properly sorted, oldest) item in the notifications that
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// is newer than the most recent fetched one, as it delimits a section comprised of only
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// items older or within `newItems` (or that were deleted from the server, so should be removed
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// anyway).
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// Stop the gap *after* that item.
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const firstIndex = oldItems.take(lastIndex).findLastIndex(item => item !== null && compareId(item.get('id'), newItems.first().get('id')) > 0) + 1;
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// At this point:
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// - no `oldItems` after `firstIndex` is newer than any of the `newItems`
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// - all `oldItems` after `lastIndex` are older than every of the `newItems`
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// - it is possible for items in the replaced slice to be older than every `newItems`
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// - it is possible for items before `firstIndex` to be in the `newItems` range
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// Therefore:
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// - to avoid losing items, items from the replaced slice that are older than `newItems`
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// should be added in the back.
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// - to avoid duplicates, `newItems` should be checked the first `firstIndex` items of
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// `oldItems`
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const idsToCheck = oldItems.take(firstIndex).map(item => item?.get('id')).toSet();
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const insertedItems = newItems.filterNot(item => idsToCheck.includes(item.get('id')));
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const olderItems = oldItems.slice(firstIndex, lastIndex).filter(item => item !== null && compareId(item.get('id'), newItems.last().get('id')) < 0);
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return oldItems.take(firstIndex).concat(
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insertedItems,
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olderItems,
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oldItems.skip(lastIndex),
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);
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});
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}
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if (!next) {
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mutable.set('hasMore', false);
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}
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if (shouldCountUnreadNotifications(state)) {
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mutable.set('unread', mutable.get('pendingItems').count(item => item !== null) + mutable.get('items').count(item => item && compareId(item.get('id'), lastReadId) > 0));
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} else {
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const mostRecent = newItems.find(item => item !== null);
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if (mostRecent && compareId(lastReadId, mostRecent.get('id')) < 0) {
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mutable.set('lastReadId', mostRecent.get('id'));
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}
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}
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mutable.update('isLoading', (nbLoading) => nbLoading - 1);
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});
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};
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const filterNotifications = (state, accountIds, type) => {
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const helper = list => list.filterNot(item => item !== null && accountIds.includes(item.get('account')) && (type === undefined || type === item.get('type')));
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return state.update('items', helper).update('pendingItems', helper);
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};
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const clearUnread = (state) => {
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state = state.set('unread', state.get('pendingItems').size);
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const lastNotification = state.get('items').find(item => item !== null);
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return state.set('lastReadId', lastNotification ? lastNotification.get('id') : '0');
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};
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const updateTop = (state, top) => {
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state = state.set('top', top);
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if (!shouldCountUnreadNotifications(state)) {
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state = clearUnread(state);
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}
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return state;
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};
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const deleteByStatus = (state, statusId) => {
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const lastReadId = state.get('lastReadId');
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if (shouldCountUnreadNotifications(state)) {
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const deletedUnread = state.get('items').filter(item => item !== null && item.get('status') === statusId && compareId(item.get('id'), lastReadId) > 0);
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state = state.update('unread', unread => unread - deletedUnread.size);
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}
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const helper = list => list.filterNot(item => item !== null && item.get('status') === statusId);
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const deletedUnread = state.get('pendingItems').filter(item => item !== null && item.get('status') === statusId && compareId(item.get('id'), lastReadId) > 0);
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state = state.update('unread', unread => unread - deletedUnread.size);
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return state.update('items', helper).update('pendingItems', helper);
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};
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const updateMounted = (state) => {
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state = state.update('mounted', count => count + 1);
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if (!shouldCountUnreadNotifications(state, state.get('mounted') === 1)) {
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state = state.set('readMarkerId', state.get('lastReadId'));
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state = clearUnread(state);
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}
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return state;
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};
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const updateVisibility = (state, visibility) => {
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state = state.set('isTabVisible', visibility);
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if (!shouldCountUnreadNotifications(state)) {
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state = state.set('readMarkerId', state.get('lastReadId'));
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state = clearUnread(state);
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}
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return state;
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};
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const shouldCountUnreadNotifications = (state, ignoreScroll = false) => {
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const isTabVisible = state.get('isTabVisible');
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const isOnTop = state.get('top');
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const isMounted = state.get('mounted') > 0;
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const lastReadId = state.get('lastReadId');
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const lastItem = state.get('items').findLast(item => item !== null);
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const lastItemReached = !state.get('hasMore') || lastReadId === '0' || (lastItem && compareId(lastItem.get('id'), lastReadId) <= 0);
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return !(isTabVisible && (ignoreScroll || isOnTop) && isMounted && lastItemReached);
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};
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const recountUnread = (state, last_read_id) => {
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return state.withMutations(mutable => {
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if (compareId(last_read_id, mutable.get('lastReadId')) > 0) {
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mutable.set('lastReadId', last_read_id);
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}
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if (compareId(last_read_id, mutable.get('readMarkerId')) > 0) {
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mutable.set('readMarkerId', last_read_id);
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}
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if (state.get('unread') > 0 || shouldCountUnreadNotifications(state)) {
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mutable.set('unread', mutable.get('pendingItems').count(item => item !== null) + mutable.get('items').count(item => item && compareId(item.get('id'), last_read_id) > 0));
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}
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});
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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 fetchMarkers.fulfilled.type:
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return action.payload.markers.notifications ? recountUnread(state, action.payload.markers.notifications.last_read_id) : state;
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case NOTIFICATIONS_MOUNT:
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return updateMounted(state);
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case NOTIFICATIONS_UNMOUNT:
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return state.update('mounted', count => count - 1);
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case focusApp.type:
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return updateVisibility(state, true);
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case unfocusApp.type:
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return updateVisibility(state, false);
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case NOTIFICATIONS_LOAD_PENDING:
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return state.update('items', list => state.get('pendingItems').concat(list.take(40))).set('pendingItems', ImmutableList()).set('unread', 0);
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case NOTIFICATIONS_EXPAND_REQUEST:
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return state.update('isLoading', (nbLoading) => nbLoading + 1);
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case NOTIFICATIONS_EXPAND_FAIL:
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return state.update('isLoading', (nbLoading) => nbLoading - 1);
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case NOTIFICATIONS_FILTER_SET:
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return state.set('items', ImmutableList()).set('pendingItems', ImmutableList()).set('hasMore', true);
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case NOTIFICATIONS_SCROLL_TOP:
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return updateTop(state, action.top);
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case notificationsUpdate.type:
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return normalizeNotification(state, action.payload.notification, action.payload.usePendingItems);
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case NOTIFICATIONS_EXPAND_SUCCESS:
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return expandNormalizedNotifications(state, action.notifications, action.next, action.isLoadingMore, action.isLoadingRecent, action.usePendingItems);
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case blockAccountSuccess.type:
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return filterNotifications(state, [action.payload.relationship.id]);
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case muteAccountSuccess.type:
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return action.payload.relationship.muting_notifications ? filterNotifications(state, [action.payload.relationship.id]) : state;
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case blockDomainSuccess.type:
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return filterNotifications(state, action.payload.accounts);
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case authorizeFollowRequestSuccess.type:
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case rejectFollowRequestSuccess.type:
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return filterNotifications(state, [action.payload.id], 'follow_request');
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case clearNotifications.pending.type:
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return state.set('items', ImmutableList()).set('pendingItems', ImmutableList()).set('hasMore', false);
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case timelineDelete.type:
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return deleteByStatus(state, action.payload.statusId);
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case disconnectTimeline.type:
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return action.payload.timeline === 'home' ?
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state.update(action.payload.usePendingItems ? 'pendingItems' : 'items', items => items.first() ? items.unshift(null) : items) :
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state;
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case NOTIFICATIONS_MARK_AS_READ: {
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const lastNotification = state.get('items').find(item => item !== null);
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return lastNotification ? recountUnread(state, lastNotification.get('id')) : state;
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}
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case NOTIFICATIONS_SET_BROWSER_SUPPORT:
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return state.set('browserSupport', action.value);
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case NOTIFICATIONS_SET_BROWSER_PERMISSION:
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return state.set('browserPermission', action.value);
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default:
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return state;
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}
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}
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