116 lines
3.9 KiB
JavaScript
116 lines
3.9 KiB
JavaScript
import Meetings from '/imports/api/meetings';
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import Logger from '/imports/startup/server/logger';
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import { check } from 'meteor/check';
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const SELECT_RANDOM_USER_ENABLED = Meteor.settings.public.selectRandomUser.enabled;
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const SELECT_RANDOM_USER_COUNTDOWN = Meteor.settings.public.selectRandomUser.countdown;
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//Time intervals in milliseconds
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//for iteration in animation
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let intervals = [0, 200, 450, 750, 1100, 1500];
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//Used to togle to the first value of intervals to
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//differenciare whether this function has been called
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let updateIndicator = true;
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//A finction that toggles
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//the first interval on each call
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function toggleIndicator(){
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if(updateIndicator){
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intervals[0] = 1;
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} else {
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intervals[0] = 0;
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}
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updateIndicator = !updateIndicator;
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}
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//All possible combinations of 3 elements
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//to to speed up randomizing
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const optionsFor3 = [
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[0, 1, 2],
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[0, 2, 1],
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[1, 2, 0],
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[1, 0, 2],
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[2, 0, 1],
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[2, 1, 0]
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];
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export default function updateRandomUser(meetingId, userIds, choice, requesterId) {
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check(meetingId, String);
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check(userIds, Array);
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check(choice, Number);
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check(requesterId, String);
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let userList = [];
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const selector = {
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meetingId,
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};
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toggleIndicator();
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const numberOfUsers = userIds.length;
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const chosenUser = userIds[choice];
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if (choice < 0) { // no viewer
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userList = [[requesterId,intervals[0]], [requesterId,0], [requesterId,0], [requesterId,0], [requesterId,0], [requesterId,0]];
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}
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else if (numberOfUsers == 1) { //If user is only one, obviously it is the chosen one
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userList = [[userIds[0],intervals[0]], [userIds[0],0], [userIds[0],0], [userIds[0],0], [userIds[0],0], [userIds[0],0]];
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}
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else if(!SELECT_RANDOM_USER_COUNTDOWN) { //If animation is disabled, we only care about the chosen one
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userList = [[chosenUser,intervals[0]], [chosenUser,0], [chosenUser,0], [chosenUser,0], [chosenUser,0], [chosenUser,0]];
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}
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else if(numberOfUsers == 2){ // If there are only two users, we can just chow them in turns
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const IDs = userIds.slice();
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IDs.splice(choice, 1);
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userList = [[IDs[0],intervals[0]], [chosenUser,intervals[1]], [IDs[0],intervals[2]], [chosenUser,intervals[3]], [IDs[0],intervals[4]], [chosenUser,intervals[5]]];
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}
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else if(numberOfUsers == 3){ //If there are 3 users, the number of combinations is small, so we'll use that
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const option = Math.floor(Math.random() * 6);
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const order = optionsFor3[option];
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userList = [[userIds[order[0]],intervals[0]], [userIds[order[1]],intervals[1]], [userIds[order[2]],intervals[2]], [userIds[order[0]],intervals[3]], [userIds[order[1]],intervals[4]], [chosenUser,intervals[5]]];
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}
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else { // We generate 5 users randomly, just for animation, and last one is the chosen one
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const itrations = intervals.length -1;
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let IDs = userIds.slice();
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for(i = 0; i < itrations; i++ ){
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if(IDs == 0) { // we used up all the options
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IDs = userIds.slice(); //start over
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let userId = IDs.splice(0, 1);
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if(userList[userList.length] == [userId, intervals[i]]){ //If we start over with the one we finnished, change it
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IDs.push(userId);
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userId = IDs.splice(0, 1)
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}
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userList.push([userId, intervals[i]]);
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} else {
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const userId = IDs.splice(Math.floor(Math.random() * IDs.length), 1);
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userList.push([userId, intervals[i]]);
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}
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}
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userList.push([chosenUser, intervals[itrations + 1]]);
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}
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const modifier = {
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$set: {
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randomlySelectedUser: userList,
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},
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};
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try {
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const { insertedId } = Meetings.upsert(selector, modifier);
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if (insertedId) {
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Logger.info(`Set randomly selected userId and interval = ${userList} by requesterId=${requesterId} in meeitingId=${meetingId}`);
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}
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} catch (err) {
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Logger.error(`Setting randomly selected userId and interval = ${userList} by requesterId=${requesterId} in meetingId=${meetingId}`);
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}
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}
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