103 lines
2.7 KiB
JavaScript
103 lines
2.7 KiB
JavaScript
import { Map as ImmutableMap, List as ImmutableList } from 'immutable';
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import {
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CONVERSATIONS_MOUNT,
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CONVERSATIONS_UNMOUNT,
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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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CONVERSATIONS_READ,
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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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mounted: false,
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});
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const conversationToMap = item => ImmutableMap({
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id: item.id,
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unread: item.unread,
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accounts: ImmutableList(item.accounts.map(a => a.id)),
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last_status: item.last_status ? item.last_status.id : null,
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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) => {
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if(a === null || b === null) {
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return -1;
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}
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return compareId(a, b) * -1;
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});
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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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case CONVERSATIONS_MOUNT:
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return state.update('mounted', count => count + 1);
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case CONVERSATIONS_UNMOUNT:
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return state.update('mounted', count => count - 1);
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case CONVERSATIONS_READ:
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return state.update('items', list => list.map(item => {
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if (item.get('id') === action.id) {
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return item.set('unread', false);
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}
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return item;
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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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