/**
 * Plugin for jQuery 1.1 to manage Google Maps
 * @author SeViR
 *
 * the method wait locations data as JS Object with this structure:
 *
 * data: {locations: [
 * 	{
 *  	simpleContent: String with the HTML content in the info window.
 * 		maximizedContent : URL of the HTML page (AJAX loaded) of the maximized info window.
 * 		latitude: latitude of the geographic poing (you can use infopanel for obtain that)
 * 		longitude: longitude of the geographic poing (you can use infopanel for obtain that)
 * 		zoom: zoom level for hotspot links
 * 		icon: url of the custom icon for this place
 *  },
 *  ...
 * ]}
 *
 * The "infopanel" param is a DOM object to show the latitude and longitude of the
 * center of the map, also, the level zoom applied.
 *
 * The "maptype" param is some of map type that admits Google MAPS like G_MAP_TYPE, G_SATELLITE_TYPE y G_HYBRID_TYPE.
 *
 * The "center" param is a point [latitude, longitude of the default point of the map center
 *
 * The "zoom" param is the default zoom applied
 *
 * The "relativepath" param is the absolute url folder path of the document (used for relative paths
 * of icons and maximized content).
 *
 * sample:
 * $("#mylayer").gmaps({
 * 	data: myplaces,
 * 	infopanel: $("#infolayer").get(0),
 * 	tipomapa: G_HYBRID_TYPE,
 *  centro: [1, -0.3],
 *  zoom: 10,
 *  relativepath: "http://mydomain.com/myproject/"
 * });
 */
jQuery.fn.gmaps = function(settings){
    return this.each(function(){
        new jQuery.gmaps(this, settings);
    });
}

jQuery.gmaps = function(obj, settings){
    var map = false;
    var gitems = new Array();

    settings = jQuery.extend({
        data: {
            locations:[]
        },
        infopanel: "none",
        maptype: G_NORMAL_MAP,
        center: [42.293564192170095, 12.65625],
        zoom: 5,
        relativepath: "http://www.agriturismo.it/"
    },settings);

    if (GBrowserIsCompatible()) {
        map = new GMap2(obj);
        map.addControl(new GSmallMapControl());
        map.addControl(new GMapTypeControl());

        if (typeof(settings.infopanel) != Boolean){
            GEvent.addListener(map, "moveend", function() {
                var center = map.getCenter();
                var zoom = map.getZoom();
                $(settings.infopanel).html(center.toString() + " zoom: " + zoom);
            });
        }

        map.setCenter(new GLatLng(settings.center[0],settings.center[1]), settings.zoom, settings.maptype);

        // Create the text for the marker
        function createMarker(point, number) {
            // create custom icon
            var icon = new GIcon();
            icon.image = (settings.data.locations[number].icon.indexOf("http:") < 0)?
            settings.relativepath + settings.data.locations[number].icon:settings.data.locations[number].icon;
            icon.iconSize = new GSize(18, 18);
            icon.iconAnchor = new GPoint(6, 18);
            icon.infoWindowAnchor = new GPoint(5, 1);

            var marker = new GMarker(point, icon);

            GEvent.addListener(marker, "click", function() {
                if (settings.data.locations[number].maximizedContent != ""){
                    simpleContent = settings.data.locations[number].simpleContent + "<a href='#' style='font-size:10px;margin-top:20px;display: block;' onclick='$(\"#"+obj.id+"\").get(0).map.getInfoWindow().maximize();return false;'>Dettagli</a>"
                    marker.openInfoWindowHtml(simpleContent,
                    {
                        maxUrl:(settings.data.locations[number].maximizedContent.indexOf("http:") < 0)?
                        settings.relativepath + settings.data.locations[number].maximizedContent:
                        settings.data.locations[number].maximizedContent
                    }
                    );
                }else{
                    marker.openInfoWindowHtml(settings.data.locations[number].simpleContent);
                }
            });

            gitems.push(marker);

            return marker;
        }
        //Inserts markers
        for (i=0;i<settings.data.locations.length;i++){
            var point = new GLatLng(settings.data.locations[i].latitude,
                settings.data.locations[i].longitude);
            map.addOverlay(createMarker(point, i));
        }

        //Loads the events of the link of the hotspots
        $("." +obj.id).each(function(){
            this.associated_map = obj.id;
            $(this).click(function(){
                $("#"+this.associated_map).get(0).gmap.jq_maps.goTo($("#"+this.associated_map).get(0), this.tabIndex - 1);
                return false;
            });
        });

        //save the properties in gmap property, and set the new options for goTo point and maximize Window
        map.jq_maps = {
            "settings": settings,
            "gitems": gitems,
            "goTo": function(div_gmap, indice){
                div_gmap.gmap.setZoom(div_gmap.gmap.jq_maps.settings.data.locations[indice].zoom);
                div_gmap.gmap.panTo(new GLatLng(div_gmap.gmap.jq_maps.settings.data.locations[indice].latitude, div_gmap.gmap.jq_maps.settings.data.locations[indice].longitude));
                if (div_gmap.gmap.jq_maps.settings.data.locations[indice].maximizedContent != ""){
                    simpleContent = div_gmap.gmap.jq_maps.settings.data.locations[indice].simpleContent + "<a href='#' style='font-size:10px;margin-top:20px;display: block;' onclick='$(\"#"+div_gmap.id+"\").get(0).gmap.getInfoWindow().maximize();return false;'>Show extended info</a>"
                    div_gmap.gmap.jq_maps.gitems[indice].openInfoWindowHtml(simpleContent,
                    {
                        maxUrl:(div_gmap.gmap.jq_maps.settings.data.locations[indice].maximizedContent.indexOf("http:") < 0)?
                        div_gmap.gmap.jq_maps.settings.relativepath + div_gmap.gmap.jq_maps.settings.data.locations[indice].maximizedContent:
                        div_gmap.gmap.jq_maps.settings.data.locations[indice].maximizedContent
                    }
                    );
                }else{
                    div_gmap.gmap.jq_maps.gitems[indice].openInfoWindowHtml(div_gmap.gmap.jq_maps.settings.data.locations[indice].simpleContent);
                }
            }
        }
    }

    obj.gmap = map;
}