60 lines
1.9 KiB
JavaScript
60 lines
1.9 KiB
JavaScript
import {
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FAVOURITED_STATUSES_FETCH_SUCCESS,
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FAVOURITED_STATUSES_EXPAND_SUCCESS,
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} from '../actions/favourites';
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import { Map as ImmutableMap, List as ImmutableList } from 'immutable';
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import {
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FAVOURITE_SUCCESS,
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UNFAVOURITE_SUCCESS,
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} from '../actions/interactions';
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const initialState = ImmutableMap({
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favourites: ImmutableMap({
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next: null,
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loaded: false,
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items: ImmutableList(),
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}),
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});
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const normalizeList = (state, listType, statuses, next) => {
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return state.update(listType, listMap => listMap.withMutations(map => {
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map.set('next', next);
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map.set('loaded', true);
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map.set('items', ImmutableList(statuses.map(item => item.id)));
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}));
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};
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const appendToList = (state, listType, statuses, next) => {
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return state.update(listType, listMap => listMap.withMutations(map => {
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map.set('next', next);
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map.set('items', map.get('items').concat(statuses.map(item => item.id)));
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}));
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};
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const prependOneToList = (state, listType, status) => {
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return state.update(listType, listMap => listMap.withMutations(map => {
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map.set('items', map.get('items').unshift(status.get('id')));
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}));
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};
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const removeOneFromList = (state, listType, status) => {
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return state.update(listType, listMap => listMap.withMutations(map => {
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map.set('items', map.get('items').filter(item => item !== status.get('id')));
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}));
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};
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export default function statusLists(state = initialState, action) {
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switch(action.type) {
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case FAVOURITED_STATUSES_FETCH_SUCCESS:
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return normalizeList(state, 'favourites', action.statuses, action.next);
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case FAVOURITED_STATUSES_EXPAND_SUCCESS:
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return appendToList(state, 'favourites', action.statuses, action.next);
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case FAVOURITE_SUCCESS:
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return prependOneToList(state, 'favourites', action.status);
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case UNFAVOURITE_SUCCESS:
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return removeOneFromList(state, 'favourites', action.status);
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default:
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return state;
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}
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};
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