MediaWiki:Gadget-syllabusTimetableLinks.js

mw.hook('wikipage.content').add(function(){
	const today = new Date();
    $.getJSON( "https://warwick-wiki.containers.uwcs.co.uk/wiki/MediaWiki:Tabula-weeks.json?action=raw", function( data ) {
    	var thisWeekNum;
	    var thisWeekYear;
	    var nextWeekNum;
	    var nextWeekYear;
		const weeks = data.weeks;
		var i = 0;
		var foundWeek = false;
		while (i < weeks.length && !foundWeek) {
			var startDate = new Date(weeks[i].start);
			var endDate = new Date(weeks[i].end + "T24:00:00Z");
			if (weeks[i].weekNumber > 0 && startDate < today && endDate >= today) {
				thisWeekNum = weeks[i].weekNumber;
				thisWeekYear = weeks[i].academicYear.replace("/", "");
				foundWeek = true;
				i--;
			}
			i++;
		}
		foundWeek = false;
		while (i < weeks.length && !foundWeek) {
			if (weeks[i].weekNumber > 0) {
				nextWeekNum = weeks[i].weekNumber;
				nextWeekYear = weeks[i].academicYear.replace("/", "");
				foundWeek = true;
				i--;
			}
			i++;
		}
		
		$('.syllabus-timetable-links').each(function(i, obj) {
			var id = $(obj).data('syllabus-id');
			var thisWeekTT = '<a href="https://timetablingmanagement.warwick.ac.uk/SWS' + thisWeekYear + '/roomtimetable.asp?id=' + id + '&week=' + thisWeekNum + '">This week</a>';
			var nextWeekTT = '<a href="https://timetablingmanagement.warwick.ac.uk/SWS' +nextWeekYear + '/roomtimetable.asp?id=' + id + '&week=' + nextWeekNum + '">Next week</a>';
			$(obj).html('<b>Timetables</b><br/>' + thisWeekTT + '&nbsp;&nbsp;&nbsp;&nbsp;' + nextWeekTT);
		});
    });
});