import { NOTIFICATIONS_UPDATE, NOTIFICATIONS_EXPAND_SUCCESS, NOTIFICATIONS_EXPAND_REQUEST, NOTIFICATIONS_EXPAND_FAIL, NOTIFICATIONS_FILTER_SET, NOTIFICATIONS_CLEAR, NOTIFICATIONS_SCROLL_TOP, NOTIFICATIONS_LOAD_PENDING, NOTIFICATIONS_MOUNT, NOTIFICATIONS_UNMOUNT, NOTIFICATIONS_MARK_AS_READ, NOTIFICATIONS_SET_BROWSER_SUPPORT, NOTIFICATIONS_SET_BROWSER_PERMISSION, } from '../actions/notifications'; import { ACCOUNT_BLOCK_SUCCESS, ACCOUNT_MUTE_SUCCESS, FOLLOW_REQUEST_AUTHORIZE_SUCCESS, FOLLOW_REQUEST_REJECT_SUCCESS, } from '../actions/accounts'; import { MARKERS_FETCH_SUCCESS, } from '../actions/markers'; import { APP_FOCUS, APP_UNFOCUS, } from '../actions/app'; import { DOMAIN_BLOCK_SUCCESS } from 'mastodon/actions/domain_blocks'; import { TIMELINE_DELETE, TIMELINE_DISCONNECT } from '../actions/timelines'; import { fromJS, Map as ImmutableMap, List as ImmutableList } from 'immutable'; import compareId from '../compare_id'; const initialState = ImmutableMap({ pendingItems: ImmutableList(), items: ImmutableList(), hasMore: true, top: false, mounted: 0, unread: 0, lastReadId: '0', readMarkerId: '0', isTabVisible: true, isLoading: false, browserSupport: false, browserPermission: 'default', }); const notificationToMap = notification => ImmutableMap({ id: notification.id, type: notification.type, account: notification.account.id, created_at: notification.created_at, status: notification.status ? notification.status.id : null, report: notification.report ? fromJS(notification.report) : null, }); const normalizeNotification = (state, notification, usePendingItems) => { const top = state.get('top'); if (usePendingItems || !state.get('pendingItems').isEmpty()) { return state.update('pendingItems', list => list.unshift(notificationToMap(notification))).update('unread', unread => unread + 1); } if (shouldCountUnreadNotifications(state)) { state = state.update('unread', unread => unread + 1); } else { state = state.set('lastReadId', notification.id); } return state.update('items', list => { if (top && list.size > 40) { list = list.take(20); } return list.unshift(notificationToMap(notification)); }); }; const expandNormalizedNotifications = (state, notifications, next, isLoadingRecent, usePendingItems) => { const lastReadId = state.get('lastReadId'); let items = ImmutableList(); notifications.forEach((n, i) => { items = items.set(i, notificationToMap(n)); }); return state.withMutations(mutable => { if (!items.isEmpty()) { usePendingItems = isLoadingRecent && (usePendingItems || !mutable.get('pendingItems').isEmpty()); mutable.update(usePendingItems ? 'pendingItems' : 'items', list => { const lastIndex = 1 + list.findLastIndex( item => item !== null && (compareId(item.get('id'), items.last().get('id')) > 0 || item.get('id') === items.last().get('id')), ); const firstIndex = 1 + list.take(lastIndex).findLastIndex( item => item !== null && compareId(item.get('id'), items.first().get('id')) > 0, ); return list.take(firstIndex).concat(items, list.skip(lastIndex)); }); } if (!next) { mutable.set('hasMore', false); } if (shouldCountUnreadNotifications(state)) { mutable.set('unread', mutable.get('pendingItems').count(item => item !== null) + mutable.get('items').count(item => item && compareId(item.get('id'), lastReadId) > 0)); } else { const mostRecent = items.find(item => item !== null); if (mostRecent && compareId(lastReadId, mostRecent.get('id')) < 0) { mutable.set('lastReadId', mostRecent.get('id')); } } mutable.set('isLoading', false); }); }; const filterNotifications = (state, accountIds, type) => { const helper = list => list.filterNot(item => item !== null && accountIds.includes(item.get('account')) && (type === undefined || type === item.get('type'))); return state.update('items', helper).update('pendingItems', helper); }; const clearUnread = (state) => { state = state.set('unread', state.get('pendingItems').size); const lastNotification = state.get('items').find(item => item !== null); return state.set('lastReadId', lastNotification ? lastNotification.get('id') : '0'); }; const updateTop = (state, top) => { state = state.set('top', top); if (!shouldCountUnreadNotifications(state)) { state = clearUnread(state); } return state; }; const deleteByStatus = (state, statusId) => { const lastReadId = state.get('lastReadId'); if (shouldCountUnreadNotifications(state)) { const deletedUnread = state.get('items').filter(item => item !== null && item.get('status') === statusId && compareId(item.get('id'), lastReadId) > 0); state = state.update('unread', unread => unread - deletedUnread.size); } const helper = list => list.filterNot(item => item !== null && item.get('status') === statusId); const deletedUnread = state.get('pendingItems').filter(item => item !== null && item.get('status') === statusId && compareId(item.get('id'), lastReadId) > 0); state = state.update('unread', unread => unread - deletedUnread.size); return state.update('items', helper).update('pendingItems', helper); }; const updateMounted = (state) => { state = state.update('mounted', count => count + 1); if (!shouldCountUnreadNotifications(state, state.get('mounted') === 1)) { state = state.set('readMarkerId', state.get('lastReadId')); state = clearUnread(state); } return state; }; const updateVisibility = (state, visibility) => { state = state.set('isTabVisible', visibility); if (!shouldCountUnreadNotifications(state)) { state = state.set('readMarkerId', state.get('lastReadId')); state = clearUnread(state); } return state; }; const shouldCountUnreadNotifications = (state, ignoreScroll = false) => { const isTabVisible = state.get('isTabVisible'); const isOnTop = state.get('top'); const isMounted = state.get('mounted') > 0; const lastReadId = state.get('lastReadId'); const lastItem = state.get('items').findLast(item => item !== null); const lastItemReached = !state.get('hasMore') || lastReadId === '0' || (lastItem && compareId(lastItem.get('id'), lastReadId) <= 0); return !(isTabVisible && (ignoreScroll || isOnTop) && isMounted && lastItemReached); }; const recountUnread = (state, last_read_id) => { return state.withMutations(mutable => { if (compareId(last_read_id, mutable.get('lastReadId')) > 0) { mutable.set('lastReadId', last_read_id); } if (compareId(last_read_id, mutable.get('readMarkerId')) > 0) { mutable.set('readMarkerId', last_read_id); } if (state.get('unread') > 0 || shouldCountUnreadNotifications(state)) { mutable.set('unread', mutable.get('pendingItems').count(item => item !== null) + mutable.get('items').count(item => item && compareId(item.get('id'), last_read_id) > 0)); } }); }; export default function notifications(state = initialState, action) { switch(action.type) { case MARKERS_FETCH_SUCCESS: return action.markers.notifications ? recountUnread(state, action.markers.notifications.last_read_id) : state; case NOTIFICATIONS_MOUNT: return updateMounted(state); case NOTIFICATIONS_UNMOUNT: return state.update('mounted', count => count - 1); case APP_FOCUS: return updateVisibility(state, true); case APP_UNFOCUS: return updateVisibility(state, false); case NOTIFICATIONS_LOAD_PENDING: return state.update('items', list => state.get('pendingItems').concat(list.take(40))).set('pendingItems', ImmutableList()).set('unread', 0); case NOTIFICATIONS_EXPAND_REQUEST: return state.set('isLoading', true); case NOTIFICATIONS_EXPAND_FAIL: return state.set('isLoading', false); case NOTIFICATIONS_FILTER_SET: return state.set('items', ImmutableList()).set('pendingItems', ImmutableList()).set('hasMore', true); case NOTIFICATIONS_SCROLL_TOP: return updateTop(state, action.top); case NOTIFICATIONS_UPDATE: return normalizeNotification(state, action.notification, action.usePendingItems); case NOTIFICATIONS_EXPAND_SUCCESS: return expandNormalizedNotifications(state, action.notifications, action.next, action.isLoadingRecent, action.usePendingItems); case ACCOUNT_BLOCK_SUCCESS: return filterNotifications(state, [action.relationship.id]); case ACCOUNT_MUTE_SUCCESS: return action.relationship.muting_notifications ? filterNotifications(state, [action.relationship.id]) : state; case DOMAIN_BLOCK_SUCCESS: return filterNotifications(state, action.accounts); case FOLLOW_REQUEST_AUTHORIZE_SUCCESS: case FOLLOW_REQUEST_REJECT_SUCCESS: return filterNotifications(state, [action.id], 'follow_request'); case NOTIFICATIONS_CLEAR: return state.set('items', ImmutableList()).set('pendingItems', ImmutableList()).set('hasMore', false); case TIMELINE_DELETE: return deleteByStatus(state, action.id); case TIMELINE_DISCONNECT: return action.timeline === 'home' ? state.update(action.usePendingItems ? 'pendingItems' : 'items', items => items.first() ? items.unshift(null) : items) : state; case NOTIFICATIONS_MARK_AS_READ: const lastNotification = state.get('items').find(item => item !== null); return lastNotification ? recountUnread(state, lastNotification.get('id')) : state; case NOTIFICATIONS_SET_BROWSER_SUPPORT: return state.set('browserSupport', action.value); case NOTIFICATIONS_SET_BROWSER_PERMISSION: return state.set('browserPermission', action.value); default: return state; } };