($ || django.jQuery)(function($){
    function location_field_load(map, location_based, zoom)
    {
        var parent = map.parent().parent();

        var location_map;

        var location_coordinate = parent.find('input[type=text]');

        function load() {
            var point = new google.maps.LatLng(49.340174,10.890595);

            var options = {
                mapTypeId: google.maps.MapTypeId.HYBRID
            };
            
            location_map = new google.maps.Map(map[0], options);

            var initial_position;

            if (location_coordinate.val())
            {
                var l = location_coordinate.val().split(/,/);

                if (l.length > 1)
                {
                    initial_position = new google.maps.LatLng(l[0], l[1]);
                    location_map.setZoom( parseInt(l[2]) );
                }
            }
            else
            {
            	location_map.setZoom(zoom);
            }
            

            function savePosition( p )
            {
            	point = p;
            	location_coordinate.val(point.lat().toFixed(6) + "," + point.lng().toFixed(6) + "," + location_map.getZoom() );
            }

            var marker = new google.maps.Marker({
                map: location_map,
                position: initial_position,
                draggable: true
            });

            google.maps.event.addListener(marker, 'dragend', function(mouseEvent) {
                savePosition(mouseEvent.latLng);
            });

            google.maps.event.addListener(location_map, 'click', function(mouseEvent){
                marker.setPosition(mouseEvent.latLng);
                savePosition(mouseEvent.latLng);
            });
            
            google.maps.event.addListener(location_map, 'zoom_changed', function(mouseEvent){
                savePosition(point);
            });
            
        	location_based.bindWithDelay("keypress", function() {
        			
        		var lstr = [];
                location_based.each(function(){
                    var b = $(this);
                    lstr.push(b.val())
                });
                
                geocode(lstr.join(','), function(l){
                    location_coordinate.val( l.lat()+','+l.lng() );
                });
                
                onLocationCoordinateChange();
    		}, 2000 );
           
            
            function onLocationCoordinateChange()
            {
                var latlng = jQuery(this).val().split(/,/);
                if (latlng.length < 2) return;
                var latlng = new google.maps.LatLng(latlng[0], latlng[1]);
                placeMarker( latlng );
                location_map.setZoom( latlng[2] );
                //geocode_reverse(latlng, function(l){
                //    location_coordinate.val(l.lat()+','+l.lng());
                //});
            }

            function placeMarker(location) {
                marker.setPosition(location);
                location_map.setCenter(location);
                savePosition(location);
                location_map.panTo(location);
            }

            function geocode(address, cb) {
                var result;
                var geocoder = new google.maps.Geocoder();
                if (geocoder) {
                    geocoder.geocode({"address": address}, function(results, status) {
                        if (status == google.maps.GeocoderStatus.OK) {
                            cb(results[0].geometry.location);
                            placeMarker(results[0].geometry.location);
                        }
                    });
                }
            }
            /*
            function geocode_reverse(location, cb) {
                var geocoder = new google.maps.Geocoder();
                if (geocoder) {
                    geocoder.geocode({"latLng": location}, function(results, status) {
                        if (status == google.maps.GeocoderStatus.OK) {
                            cb(results[0].geometry.location);
                            placeMarker(results[0].geometry.location);
                        }
                    });
                }
            }*/
            
            
            placeMarker(initial_position);
        }

        load();
    }


    $('input[data-location-widget]').each(function(){
        var $el = $(this);

        var $map = $($el.attr('data-map')),
            $based_fields = $($el.attr('data-based-fields')),
            zoom = parseInt($el.attr('data-zoom'));

        location_field_load($map, $based_fields, zoom);
    });
});