var locsearch;
var zoom_map = {'100':8,'50':9,'20':10,'10':11,'5':12};

function loadLocationSearch(){
	var current = window.onload;
	window.onload = function(){
		current();
		locsearch = new LocationSearch();
	}
}

function LocationSearch (){
	this.prepareVars();
	this.initMap();
	this.mapEvents();
}

LocationSearch.prototype.results;

LocationSearch.prototype.map;
LocationSearch.prototype.map_types;
LocationSearch.prototype.marker;
LocationSearch.prototype.poly;
LocationSearch.prototype.proximity;
LocationSearch.prototype.lat;
LocationSearch.prototype.lng;
LocationSearch.prototype.zoom;

LocationSearch.prototype.default_lat = -28.722436;
LocationSearch.prototype.default_lng = 24.609375;
LocationSearch.prototype.default_zoom = 5;
LocationSearch.prototype.min_scale = 5;
LocationSearch.prototype.max_scale = 12;

LocationSearch.prototype.initMap = function (){
	this.map = new GMap2(document.getElementById("map_canvas"));
	this.map_types = this.map.getMapTypes();
	this.setResolutions(this.min_scale, this.max_scale);
	this.prepareMap();
}

LocationSearch.prototype.setResolutions = function (min, max){
	for (var i=0; i<this.map_types.length; i++) {
		this.map_types[i].getMinimumResolution = function() {return min;}
		this.map_types[i].getMaximumResolution = function() {return max;}
	}
}

LocationSearch.prototype.prepareMap = function (){
	this.map.setCenter(new GLatLng(this.lat, this.lng), this.zoom);
	this.map.disableDragging();
	this.map.addControl(new GLargeMapControl(), new GControlPosition(G_ANCHOR_TOP_LEFT, new GSize(-10,-60)));
	if(this.lat != this.default_lat) this.setLocation(new Array(this.lat, this.lng));
}

LocationSearch.prototype.mapEvents = function (){
	LSO = this;
	//GEvent.bind(this.map, "click", this, this.onMapClick);
	GEvent.bind(this.map, "zoomend", this, this.onMapZoom);
}

LocationSearch.prototype.prepareVars = function (){
	this.proximity = document.getElementById('proximity').value;
	this.lat = document.getElementById('post_lat').value || this.default_lat;
	this.lng = document.getElementById('post_lng').value || this.default_lng;
	this.zoom = zoom_map[document.getElementById('post_prx').value] || this.default_zoom;
}

LocationSearch.prototype.drawCircle = function (center){

	var latConv = center.distanceFrom(new GLatLng(center.lat()+0.1,center.lng()))/100;
	var lngConv = center.distanceFrom(new GLatLng(center.lat(),center.lng()+0.1))/100;
	var points = new Array();
	for(var i=0; i<=360; i+=10){
		var pint = new GLatLng(center.lat() + (this.proximity/latConv * Math.cos(i * Math.PI/180)), center.lng() + (this.proximity/lngConv * Math.sin(i * Math.PI/180)));
		points.push(pint);
		this.map.getBounds().extend(pint);
	}

	this.poly = new GPolygon(points, "#0055ff", 2, 1, "#0055ff", 0.4, {clickable: false});
	this.map.addOverlay(this.poly);
	this.map.setZoom(this.zoom);
	this.map.setCenter(center);

}

LocationSearch.prototype.addMarker = function (){
	point = new GLatLng(this.lat, this.lng);
	this.marker = new GMarker(point);
	this.map.addOverlay(this.marker);
}

LocationSearch.prototype.setLocation = function (latlng, label){
	document.getElementById('post_lat').value = latlng[0];
	document.getElementById('post_lng').value  = latlng[1];
	document.getElementById('post_prx').value = document.getElementById('proximity').value;
	this.prepareVars();
	this.map.clearOverlays();
	this.addMarker();
	this.drawCircle(new GLatLng(latlng[0], latlng[1]));
	if(label != null) this.addLabel(label);
}

LocationSearch.prototype.requestLocation = function (){
	var LSO = this;
	var inlineAjax = new InlineAjax();
	inlineAjax.requestObject.onreadystatechange = function(){
		if(inlineAjax.requestObject.readyState == 4){
			//alert(inlineAjax.requestObject.responseText);
			var response = eval(inlineAjax.requestObject.responseText);
			LSO.setLocation(new Array(response[0], response[1]), response[2]);
			LSO.showResults(response[3]);
		}
	}
	query = "loc="+document.getElementById('location_id').value+"&prx="+document.getElementById('proximity').value+"&keywords="+document.getElementById('keywords').value;
	url = "/packages/Search/includes/find_location.php?" + query;
	inlineAjax.requestObject.open("GET",url,true);
	inlineAjax.requestObject.send(null);
}

LocationSearch.prototype.requestSeekerLocation = function (){
	var LSO = this;
	var inlineAjax = new InlineAjax();
	inlineAjax.requestObject.onreadystatechange = function(){
		if(inlineAjax.requestObject.readyState == 4){
			var response = eval(inlineAjax.requestObject.responseText);
			LSO.setLocation(new Array(response[0], response[1]), response[2]);
			LSO.showResults(response[3]);
		}
	}
	query = "loc="+document.getElementById('location_id').value+"&prx="+document.getElementById('proximity').value+"&keywords="+document.getElementById('keywords').value;
	url = "/packages/Search/includes/find_seekerlocation.php?" + query;
	inlineAjax.requestObject.open("GET",url,true);
	inlineAjax.requestObject.send(null);
}

LocationSearch.prototype.onMapZoom = function (oldLevel, newLevel){
	if(newLevel == 5){ this.map.setCenter(new GLatLng(this.default_lat, this.default_lng), this.default_zoom); }
	else{ this.map.setCenter(this.marker.getLatLng()); }
}

LocationSearch.prototype.onMapClick = function (overlay, point){
	alert(overlay.getLatLng());
	this.setLocation(new Array(point.lat(), point.lng()));
}

LocationSearch.prototype.addLabel = function (content){
	var tooltip = new Tooltip(this.marker, content, 4, "main");
	this.marker.tooltip = tooltip;
	this.map.addOverlay(tooltip);
	tooltip.show();
}

LocationSearch.prototype.showResults = function (results){
	var marker;
	this.results = results;
	for(key in results){
		point = new GLatLng(results[key][0], results[key][1]);
		marker = new GMarker(point);
		this.map.addOverlay(marker);
		var tooltip = new Tooltip(marker, results[key][4], 4, "sub");
		marker.tooltip = tooltip;
		this.map.addOverlay(tooltip);
		GEvent.addListener(marker,'mouseover',function(){ this.tooltip.show(); });
		GEvent.addListener(marker,'mouseout',function(){ this.tooltip.hide(); });
		GEvent.addListener(this.map, "click", onMarkerClick);
	}

}

function onMarkerClick (overlay, point){
	var latlng = overlay.getLatLng();
	document.getElementById('post_lat').value = latlng.lat();
	document.getElementById('post_lng').value = latlng.lng();
	submitForm('frmlocsearch');
}