MediaWiki:Gadget-challenge-live-tracker.js

'use strict';

(function ( $ ) {
	$(function() {
		var $bubbles = $( '#cl-tracker' ).children();
		
		var today = new Date(
			new Date().toLocaleString( 'en-US', { timeZone: 'Asia/Tokyo' } )
		);
		var day = today.getDay();
		
		if ( today.getHours() < 4 ) { // go back a bubble if before 4 AM
			day = ( day - 1 + 7 ) % 7; // wrap between 0-6
		}
		
		if ( day === 0 ) { // 0 is sunday, which is day 7 in CL
			day = 7;
		}
		
		$bubbles.each(function( index ) {
			if ( index < day ) {
				$( this ).addClass( 'cl-bubble-complete' );
			}
		});
	});
})( jQuery );