73 lines
2.6 KiB
JavaScript
73 lines
2.6 KiB
JavaScript
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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_DISMISS,
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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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} from '../actions/announcements';
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import { Map as ImmutableMap, List as ImmutableList, fromJS } from 'immutable';
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const initialState = ImmutableMap({
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items: ImmutableList(),
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isLoading: 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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if (reactions.find(reaction => reaction.get('name') === name)) {
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return reactions.map(reaction => {
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if (reaction.get('name') === name) {
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return updater(reaction);
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}
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return reaction;
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});
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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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export default function announcementsReducer(state = initialState, action) {
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switch(action.type) {
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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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map.set('items', fromJS(action.announcements));
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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 state.update('items', list => list.unshift(fromJS(action.announcement)).sortBy(announcement => announcement.get('starts_at')));
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case ANNOUNCEMENTS_DISMISS:
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return state.update('items', list => list.filterNot(announcement => announcement.get('id') === action.id));
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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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default:
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return state;
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}
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};
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