80 lines
2.1 KiB
JavaScript
80 lines
2.1 KiB
JavaScript
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import { Map as ImmutableMap, List as ImmutableList } from 'immutable';
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import {
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CONVERSATIONS_FETCH_REQUEST,
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CONVERSATIONS_FETCH_SUCCESS,
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CONVERSATIONS_FETCH_FAIL,
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CONVERSATIONS_UPDATE,
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} from '../actions/conversations';
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import compareId from '../compare_id';
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const initialState = ImmutableMap({
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items: ImmutableList(),
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isLoading: false,
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hasMore: true,
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});
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const conversationToMap = item => ImmutableMap({
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id: item.id,
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accounts: ImmutableList(item.accounts.map(a => a.id)),
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last_status: item.last_status.id,
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});
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const updateConversation = (state, item) => state.update('items', list => {
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const index = list.findIndex(x => x.get('id') === item.id);
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const newItem = conversationToMap(item);
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if (index === -1) {
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return list.unshift(newItem);
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} else {
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return list.set(index, newItem);
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}
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});
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const expandNormalizedConversations = (state, conversations, next) => {
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let items = ImmutableList(conversations.map(conversationToMap));
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return state.withMutations(mutable => {
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if (!items.isEmpty()) {
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mutable.update('items', list => {
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list = list.map(oldItem => {
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const newItemIndex = items.findIndex(x => x.get('id') === oldItem.get('id'));
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if (newItemIndex === -1) {
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return oldItem;
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}
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const newItem = items.get(newItemIndex);
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items = items.delete(newItemIndex);
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return newItem;
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});
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list = list.concat(items);
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return list.sortBy(x => x.get('last_status'), (a, b) => compareId(a, b) * -1);
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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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mutable.set('isLoading', false);
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});
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};
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export default function conversations(state = initialState, action) {
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switch (action.type) {
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case CONVERSATIONS_FETCH_REQUEST:
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return state.set('isLoading', true);
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case CONVERSATIONS_FETCH_FAIL:
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return state.set('isLoading', false);
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case CONVERSATIONS_FETCH_SUCCESS:
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return expandNormalizedConversations(state, action.conversations, action.next);
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case CONVERSATIONS_UPDATE:
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return updateConversation(state, action.conversation);
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default:
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return state;
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}
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};
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