function update_filtering(data) {

// Delegate to consolidated ConferenceFilter module

if (window.ConferenceFilter && window.ConferenceFilter.updateFromMultiselect) {

window.ConferenceFilter.updateFromMultiselect(data.subs);

} else {

// Fallback for legacy support

console.warn('ConferenceFilter module not loaded, using legacy filtering');

// Defensive check for data parameter

if (!data || typeof data !== 'object') {

console.error('update_filtering called with invalid data:', data);

return;

}

// Ensure required properties exist

if (!data.subs || !Array.isArray(data.subs)) {

console.error('update_filtering: data.subs is not an array:', data.subs);

return;

}

var page_url = window.location.pathname;

store.set('{{site.domain}}-subs', { subs: data.subs, timestamp: new Date().getTime() });

$('.ConfItem').hide();

// Loop through selected values in data.subs

for (const s of data.subs) {

// Show elements with class .s-conf (where s is the selected value)

$('.' + s + '-conf').show();

}

// Notify CountdownManager about filter changes for lazy loading optimization

if (window.CountdownManager && window.CountdownManager.onFilterUpdate) {

window.CountdownManager.onFilterUpdate();

}

if (data.subs.length === 0 || data.subs.length == data.all_subs.length) {

window.history.pushState('', '', page_url);

} else {

// Join the selected values into a query parameter

window.history.pushState('', '', page_url + '?sub=' + data.subs.join());

}

}

}

function isDataExpired(data) {

const EXPIRATION_PERIOD = 1 * 17 * 60 * 60 * 1000; // 1 day in milliseconds

const now = new Date().getTime();

if (data.timestamp && now - data.timestamp > EXPIRATION_PERIOD) {

return true;

}

return false;

}

function createCalendarFromObject(data) {

return createCalendar({

options: {

class: 'calendar-obj',

// You can pass an ID. If you don't, one will be generated for you

id: data.id,

},

data: {

// Event title

title: data.title,

// Event start date

start: data.start_date,

// Event duration (minutes)

duration: 60,

// You can also choose to set an end time

// If an end time is set, this will take precedence over duration

end: data.end_date,

// Event Address

address: data.place,

// Event Description

description: '<a href=' + data.link + '>' + data.title + '</a>',

},

});

}