bigbluebutton-Github/bigbluebutton-html5/imports/ui/components/pads/service.js
Pedro Beschorner Marin 307a6cb83c refactor(pads): improve session creation
Add a throttle control to avoid multiple create session calls in a short
period of time.
2022-04-07 10:26:59 -03:00

105 lines
2.3 KiB
JavaScript

import _ from 'lodash';
import Pads, { PadsUpdates } from '/imports/api/pads';
import { makeCall } from '/imports/ui/services/api';
import Auth from '/imports/ui/services/auth';
import Settings from '/imports/ui/services/settings';
const PADS_CONFIG = Meteor.settings.public.pads;
const THROTTLE_TIMEOUT = 2000;
const getLang = () => {
const { locale } = Settings.application;
return locale ? locale.toLowerCase() : '';
};
const getParams = () => {
const config = {};
config.lang = getLang();
config.rtl = document.documentElement.getAttribute('dir') === 'rtl';
const params = Object.keys(config)
.map((key) => `${key}=${encodeURIComponent(config[key])}`)
.join('&');
return params;
};
const getPadId = (externalId) => makeCall('getPadId', externalId);
const createGroup = (externalId, model, name) => makeCall('createGroup', externalId, model, name);
const hasPad = (externalId) => {
const pad = Pads.findOne(
{
meetingId: Auth.meetingID,
externalId,
},
);
return pad !== undefined;
};
const createSession = (externalId) => makeCall('createSession', externalId);
const throttledCreateSession = _.throttle(createSession, THROTTLE_TIMEOUT, {
leading: true,
trailing: false,
});
const buildPadURL = (padId) => {
if (padId) {
const params = getParams();
const url = Auth.authenticateURL(`${PADS_CONFIG.url}/p/${padId}?${params}`);
return url;
}
return null;
};
const getRev = (externalId) => {
const updates = PadsUpdates.findOne(
{
meetingId: Auth.meetingID,
externalId,
}, { fields: { rev: 1 } },
);
return updates ? updates.rev : 0;
};
const getPadTail = (externalId) => {
const updates = PadsUpdates.findOne(
{
meetingId: Auth.meetingID,
externalId,
}, { fields: { tail: 1 } },
);
if (updates && updates.tail) return updates.tail;
return '';
};
const getPadContent = (externalId) => {
const updates = PadsUpdates.findOne(
{
meetingId: Auth.meetingID,
externalId,
}, { fields: { content: 1 } },
);
if (updates && updates.content) return updates.content;
return '';
};
export default {
getPadId,
createGroup,
hasPad,
createSession: (externalId) => throttledCreateSession(externalId),
buildPadURL,
getRev,
getPadTail,
getPadContent,
};