var UPCOMING_API_BASEURL = 'http://upcoming.yahooapis.com/services/rest/?format=json&';
var UPCOMING_API_KEY = 'dceb052b30';

var map = null;

var URL_REGEX = /(^|[^'">])((ftp|http|https):\/\/(\S+))(\b|$)/gi;
var EMAIL_REGEX = /(^|[^:])([A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,})(\b|$)/gi;

function load_gmap(){
	if(document.getElementById("eventmap") != null){
			if (GBrowserIsCompatible()) {
				map = new GMap2(document.getElementById("eventmap"));
				map.addControl(new GLargeMapControl3D() );
				map.addControl(new GMenuMapTypeControl());
				map.setCenter(new GLatLng(52,0), 5);
			}
	}
}

function doSearch(){
	// clear map of all markers
	map.clearOverlays();

	// get the form vals
	var params = {api_key: UPCOMING_API_KEY, method: 'event.search', callback:'doSearchCallback'};
	var tracker = {what:'', where:''};

	// search text
	if($('#search_text').val() != ''){
		params.search_text = $('#search_text').val();
		tracker.what = $('#search_text').val();
	} 
	
	// set the dates
		// min_date - always set to today
	var min_date = '2010-07-29';
	params.min_date = min_date;

	// max_date
	var max_date = '2010-08-01';
	if($('#when').val()== 7){
		max_date = '2010-08-05';
	} else if($('#when').val()== 31){
		max_date = '2010-08-29';
	}
	params.max_date = max_date;

	//search location
	if($('#location').val() != ''){
		// lookup the lat/lng for the address
		var geocoder = new GClientGeocoder();
	 	geocoder.getLatLng(
		    $('#location').val(),
		    function(point) {
		      	if (!point) {
				alert(address + " notfound");
		      	} else {
				params.location = point.toString();
				map.setCenter(point, 8);
		      	}

			var data = $.param(params);
			$.getScriptXS(UPCOMING_API_BASEURL + data);
		    });
	} else {
		// use the current map centre
		params.location = map.getCenter().lat() +','+map.getCenter().lng();
		map.setCenter(map.getCenter(), 8);
		var data = $.param(params);
		$.getScriptXS(UPCOMING_API_BASEURL + data);
	}
	tracker.where = $('#location').val();
	
	//call the tracker
	trackerLog(tracker);
}

function doSearchCallback(data){
	if (data.rsp){
		$.each(data.rsp.event, function(i,val) {
			addMarker(val);
		});
	} else {
		alert("There are no events matching your search.\n\nPlease try again.");
	}
}

function addMarker(eventObj){
	var point = new GLatLng(eventObj.latitude, eventObj.longitude);
	var marker = new GMarker(point, {title: eventObj.name});
	map.addOverlay(marker);
	GEvent.addListener(marker, "click", function() {
                 marker.openInfoWindowHtml(displayEvent(eventObj));
        });
}

function displayEvent(eventObj){

	var html='';
	html += '<div class="infowindow">';
	html += '<b>'+eventObj.name+'</b><small>';

	if (eventObj.start_date !=''){
		html += '<br/><b>Date & time</b>: ' + formatDate(parseDate(eventObj.start_date),'E d MMM yyyy');
		if (eventObj.start_time != ''){
			html += ' ' + getTime(eventObj.start_time);
		}
		if (eventObj.end_date != '' || getTime(eventObj.end_time) != ''){
			html += ' until ';
			if (eventObj.end_date !=''){
				html += formatDate(parseDate(eventObj.end_date),'E d MMM yyyy');
			}
			if (eventObj.end_time !=''){
				html += ' ' + getTime(eventObj.end_time);
			}
		}
	}
	if (eventObj.venue_name != ''){
		html += '<br/><b>Venue</b>: '+eventObj.venue_name;
		if (eventObj.venue_address != ''){
			html += ', '+eventObj.venue_address;
		}
		if (eventObj.venue_zip != ''){
			html += ', '+eventObj.venue_zip;
		}
	}
	if(eventObj.ticket_price != '' || eventObj.ticket_free == '1'){
		html += '<br/><b>Tickets</b>: ';
		if (eventObj.ticket_free == '1'){
			html += 'Free';
		}
		if (eventObj.ticket_price != ''){
			html += eventObj.ticket_price;
		}
		if (eventObj.ticket_url != ''){
			html += ' (<a href="'+eventObj.ticket_url+'" target="_blank">Book online</a>)';
		}
	}
	html += '</small><br/>'+insertLinks(eventObj.description)+'</div>';
	return html;
}

function insertLinks(inText){
	var withurls = inText.replace(URL_REGEX ,"$1<a href='$2' target='_blank'>$2</a>");
	var withemails = withurls.replace(EMAIL_REGEX ,"$1<a href='mailto:$2'>$2</a>");
	return withemails;
}

function getTime(inT){
	var outT='';
	try {
		arr = inT.split(':');
		outT= arr[0]+ ':' +arr[1];
	} catch (err){
		//do nothing
	}
	return outT;
	
}

function trackerLog(track){
	var data = $.param(track);
	$.ajax({
	    url: './services/tracker.php?'+data,
	    type: 'GET',
	    dataType: 'xml',
	    timeout: 1000,
	    error: function(){
		//alert('Error loading XML document');
	    },
	    success: function(xml){
		// do something with xml
		//alert('added to tracker');
	    }
	});
}