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// @flow
import { CONFERENCE_ENDED, CONFERENCE_JOINED } from '../conference';
import { CONFERENCE_REMOVED } from './actionTypes';
import type { RecentListItem } from './types';
type State = {
recentList: Array<RecentListItem>;
};
const DEFAULT_STATE = {
recentList: []
};
/**
* Reduces redux actions for features/recent-list.
*
* @param {State} state - Current reduced redux state.
* @param {Object} action - Action which was dispatched.
* @returns {State} - Updated reduced redux state.
*/
export default (state: State = DEFAULT_STATE, action: Object) => {
switch (action.type) {
case CONFERENCE_ENDED:
return {
...state,
recentList:
_updateEndtimeOfConference(state.recentList, action.conference)
};
case CONFERENCE_JOINED:
return {
...state,
recentList: _insertConference(state.recentList, action.conference)
};
case CONFERENCE_REMOVED:
return {
...state,
recentList: _removeConference(state.recentList, action.conference)
};
default:
return state;
}
};
/**
* Insert Conference details in the recent list array.
*
* @param {Array<RecentListItem>} recentList - Previous recent list array.
* @param {RecentListItem} newConference - Conference that has to be added
* to recent list.
* @returns {Array<RecentListItem>} - Updated recent list array.
*/
function _insertConference(
recentList: Array<RecentListItem>,
newConference: RecentListItem
) {
// Add start time to conference.
newConference.startTime = Date.now();
// Remove same conference.
const newRecentList: Array<RecentListItem> = recentList.filter(
(conference: RecentListItem) => conference.room !== newConference.room
|| conference.serverURL !== newConference.serverURL);
// Add the conference at the beginning.
newRecentList.unshift(newConference);
return newRecentList;
}
/**
* Remove a conference from the recent list array.
*
* @param {Array<RecentListItem>} recentList - Previous recent list array.
* @param {RecentListItem} toRemove - Conference to be removed.
* @returns {Array<RecentListItem>} - Updated recent list array.
*/
function _removeConference(
recentList: Array<RecentListItem>,
toRemove: RecentListItem
): Array<RecentListItem> {
return recentList.filter(
(conference: RecentListItem) => conference !== toRemove);
}
/**
* Update the EndTime of the last conference.
*
* @param {Array<RecentListItem>} recentList - Previous recent list array.
* @param {RecentListItem} conference - Conference for which endtime has to
* be updated.
* @returns {Array<RecentListItem>} - Updated recent list array.
*/
function _updateEndtimeOfConference(
recentList: Array<RecentListItem>,
conference: RecentListItem
) {
for (const item of recentList) {
if (item.room === conference.room
&& item.serverURL === conference.serverURL) {
item.endTime = Date.now();
break;
}
}
return recentList;
}
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