bigbluebutton-Github/bigbluebutton-html5/imports/api/2.0/slides/server/methods/switchSlide.js
2017-09-06 07:17:46 -07:00

53 lines
1.5 KiB
JavaScript
Executable File

import Presentations from '/imports/api/2.0/presentations';
import Slides from '/imports/api/2.0/slides';
import { Meteor } from 'meteor/meteor';
import { check } from 'meteor/check';
import RedisPubSub from '/imports/startup/server/redis2x';
import { buildMessageHeader } from '/imports/api/common/server/helpers';
export default function switchSlide(credentials, slideNumber) {
const REDIS_CONFIG = Meteor.settings.redis;
const CHANNEL = REDIS_CONFIG.channels.toAkkaApps;
const EVENT_NAME = 'SetCurrentPagePubMsg';
const { meetingId, requesterUserId, requesterToken } = credentials;
check(meetingId, String);
check(requesterUserId, String);
check(requesterToken, String);
check(slideNumber, Number);
const selector = {
meetingId,
current: true,
};
const Presentation = Presentations.findOne(selector);
if (!Presentation) {
throw new Meteor.Error(
'presentation-not-found', 'You need a presentation to be able to switch slides');
}
const Slide = Slides.findOne({
meetingId,
presentationId: Presentation.id,
num: slideNumber,
});
if (!Slide) {
throw new Meteor.Error(
'slide-not-found', `Slide number ${slideNumber} not found in the current presentation`);
}
const payload = {
pageId: Slide.id,
presentationId: Presentation.id,
};
//const header = buildMessageHeader(EVENT_NAME, meetingId, requesterUserId);
return RedisPubSub.publish(CHANNEL, EVENT_NAME, meetingId, payload, { userId: requesterUserId });
}