function Schedule(hallId) {
    var events = [];

    this.update = function() {
        $.getJSON("https://cfp.openfest.org/schedule.json", function(data) {
            var scheduleEvents = $.map(data[hallId], function(event) {
                event['startTime'] = moment(event['startTime']).subtract(2, 'hours');
                event['endTime'] = moment(event['endTime']).subtract(2, 'hours');
                return event;
            });
            events = scheduleEvents;
        });
    }

    this.addEvent = function(event) {
        events.push(event);
        events = _.sortBy(events, function(event) {
            return event.startTime.unix()
        });
    }

    this.upcomingEvents = function() {
        return _.select(events, function(event) {
            return event.startTime.isAfter(moment());
        });
    }

    this.nextEvent = function() {
        return _.first(this.upcomingEvents());
    }

    this.currentEvent = function() {
        var latestEvent = _.last(this.pastEvents());
        var nextEvent = this.nextEvent();
        if (typeof nextEvent != 'undefined' && moment(nextEvent.startTime).subtract('minutes', 10).isAfter(moment())) {
            return latestEvent;
        } else {
            return undefined;
        }
    }

    this.futureEvents = function() {
        return this.upcomingEvents().splice(1);
    }

    this.pastEvents = function() {
        return _.select(events, function(event) {
            return event.startTime.isBefore(moment());
        });
    }

    this.allEvents = function() {
        return events;
    }

    this.addDelay = function(time) {
        _.each(this.upcomingEvents(), function(event, index, agenda) {
            event.startTime.add(time);
        });
    }
}

$.urlParam = function(name){
    var results = new RegExp('[\?&]' + name + '=([^&#]*)').exec(window.location.href);
    if (results==null){
       return null;
    }
    else{
       return results[1] || 0;
    }
}

var schedule = new Schedule(parseInt($.urlParam('roomId')));