bigbluebutton-Github/bigbluebutton-html5/imports/api/presentations/server/modifiers/setCurrentPresentation.js

71 lines
1.7 KiB
JavaScript

import { check } from 'meteor/check';
import Presentations from '/imports/api/presentations';
import Logger from '/imports/startup/server/logger';
export default async function setCurrentPresentation(meetingId, podId, presentationId) {
check(meetingId, String);
check(presentationId, String);
check(podId, String);
const oldCurrent = {
selector: {
meetingId,
podId,
current: true,
id: {
$ne: presentationId,
},
},
modifier: {
$set: { current: false },
},
callback: (err) => {
if (err) {
Logger.error(`Unsetting the current presentation: ${err}`);
return;
}
Logger.info('Unsetted as current presentation');
},
};
const newCurrent = {
selector: {
meetingId,
podId,
id: presentationId,
},
modifier: {
$set: { current: true },
},
callback: (err) => {
if (err) {
Logger.error(`Setting as current presentation id=${presentationId}: ${err}`);
return;
}
Logger.info(`Setted as current presentation id=${presentationId}`);
},
};
const oldPresentation = await Presentations.findOneAsync(oldCurrent.selector);
const newPresentation = await Presentations.findOneAsync(newCurrent.selector);
// We update it before unset current to avoid the case where theres no current presentation.
if (newPresentation) {
try{
await Presentations.updateAsync(newPresentation._id, newCurrent.modifier);
} catch(e){
newCurrent.callback(e);
}
}
if (oldPresentation) {
try {
await Presentations.updateAsync(oldCurrent.selector, oldCurrent.modifier, { multi: true });
} catch (e) {
oldCurrent.callback(e);
}
}
}