mirror of
https://git.bsd.gay/fef/nyastodon.git
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103 lines
3.6 KiB
JavaScript
103 lines
3.6 KiB
JavaScript
import { Map as ImmutableMap, List as ImmutableList, fromJS } from 'immutable';
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import {
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ANNOUNCEMENTS_FETCH_REQUEST,
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ANNOUNCEMENTS_FETCH_SUCCESS,
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ANNOUNCEMENTS_FETCH_FAIL,
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ANNOUNCEMENTS_UPDATE,
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ANNOUNCEMENTS_REACTION_UPDATE,
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ANNOUNCEMENTS_REACTION_ADD_REQUEST,
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ANNOUNCEMENTS_REACTION_ADD_FAIL,
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ANNOUNCEMENTS_REACTION_REMOVE_REQUEST,
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ANNOUNCEMENTS_REACTION_REMOVE_FAIL,
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ANNOUNCEMENTS_TOGGLE_SHOW,
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ANNOUNCEMENTS_DELETE,
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ANNOUNCEMENTS_DISMISS_SUCCESS,
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} from '../actions/announcements';
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const initialState = ImmutableMap({
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items: ImmutableList(),
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isLoading: false,
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show: false,
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});
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const updateReaction = (state, id, name, updater) => state.update('items', list => list.map(announcement => {
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if (announcement.get('id') === id) {
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return announcement.update('reactions', reactions => {
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const idx = reactions.findIndex(reaction => reaction.get('name') === name);
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if (idx > -1) {
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return reactions.update(idx, reaction => updater(reaction));
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}
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return reactions.push(updater(fromJS({ name, count: 0 })));
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});
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}
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return announcement;
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}));
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const updateReactionCount = (state, reaction) => updateReaction(state, reaction.announcement_id, reaction.name, x => x.set('count', reaction.count));
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const addReaction = (state, id, name) => updateReaction(state, id, name, x => x.set('me', true).update('count', y => y + 1));
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const removeReaction = (state, id, name) => updateReaction(state, id, name, x => x.set('me', false).update('count', y => y - 1));
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const sortAnnouncements = list => list.sortBy(x => x.get('starts_at') || x.get('published_at'));
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const updateAnnouncement = (state, announcement) => {
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const idx = state.get('items').findIndex(x => x.get('id') === announcement.get('id'));
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if (idx > -1) {
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// Deep merge is used because announcements from the streaming API do not contain
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// personalized data about which reactions have been selected by the given user,
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// and that is information we want to preserve
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return state.update('items', list => sortAnnouncements(list.update(idx, x => x.mergeDeep(announcement))));
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}
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return state.update('items', list => sortAnnouncements(list.unshift(announcement)));
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};
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export default function announcementsReducer(state = initialState, action) {
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switch(action.type) {
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case ANNOUNCEMENTS_TOGGLE_SHOW:
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return state.withMutations(map => {
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map.set('show', !map.get('show'));
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});
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case ANNOUNCEMENTS_FETCH_REQUEST:
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return state.set('isLoading', true);
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case ANNOUNCEMENTS_FETCH_SUCCESS:
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return state.withMutations(map => {
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const items = fromJS(action.announcements);
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map.set('items', items);
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map.set('isLoading', false);
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});
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case ANNOUNCEMENTS_FETCH_FAIL:
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return state.set('isLoading', false);
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case ANNOUNCEMENTS_UPDATE:
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return updateAnnouncement(state, fromJS(action.announcement));
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case ANNOUNCEMENTS_REACTION_UPDATE:
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return updateReactionCount(state, action.reaction);
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case ANNOUNCEMENTS_REACTION_ADD_REQUEST:
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case ANNOUNCEMENTS_REACTION_REMOVE_FAIL:
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return addReaction(state, action.id, action.name);
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case ANNOUNCEMENTS_REACTION_REMOVE_REQUEST:
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case ANNOUNCEMENTS_REACTION_ADD_FAIL:
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return removeReaction(state, action.id, action.name);
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case ANNOUNCEMENTS_DISMISS_SUCCESS:
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return updateAnnouncement(state, fromJS({ 'id': action.id, 'read': true }));
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case ANNOUNCEMENTS_DELETE:
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return state.update('items', list => {
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const idx = list.findIndex(x => x.get('id') === action.id);
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if (idx > -1) {
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return list.delete(idx);
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}
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return list;
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});
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default:
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return state;
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}
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}
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