/*
//////////////////////////////////////////////////////////////////////////////////
///////Copyright © 2009 Bird Wing Productions, http://www.birdwingfx.com//////////
//////////////////////////////////////////////////////////////////////////////////

/////////////////////////////////////////////////////////////////////

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.

/////////////////////////////////////////////////////////////////////
*/


(function($) {
    
    $.GoogleMapObjectDefaults = {        
        zoomLevel: 10,
		imagewidth: 50,
		imageheight: 50,
		center: '2000 Florida Ave NW Washington, DC 20009-1231',
		start: '#start',
        end: '#end',
		directions: 'directions',
        submit: '#getdirections',
		tooltip: "",
		image: false
    };

    function GoogleMapObject(elementId, options) {
        /* private variables */
        this._inited = false;
        this._map = null;
        this._geocoder = null;
	
        /* Public properties */
        this.ElementId = elementId;
        this.Settings = $.extend({}, $.GoogleMapObjectDefaults, options || '');
    }

    $.extend(GoogleMapObject.prototype, {
        init: function() {
            if (!this._inited) {
                if (GBrowserIsCompatible()) {
                    this._map = new GMap2(document.getElementById(this.ElementId));
                    this._map.addControl(new GSmallMapControl());
                    this._geocoder = new GClientGeocoder();
                }
                this._inited = true;
            }
        },
        load: function() {
            //ensure existence
            this.init();
            if (this._geocoder) {
                //"this" will be in the wrong context for the callback
                var zoom = this.Settings.zoomLevel;
                var center = this.Settings.center;
				var width = this.Settings.imagewidth;
				var height = this.Settings.imageheight;
				var destination = $(this.Settings.end).val();
				var customtooltip = this.Settings.tooltip.length > 0?true:false;
                var map = this._map;
				if (customtooltip) {
		    		var tooltipinfo = this.Settings.tooltip;
				}
				if (this.Settings.image != false) {
		    		var customimage = true;
		    		var imageurl = this.Settings.image;
				}		
	            this._geocoder.getLatLng(center, function(point) {
	            	if (!point) { alert(center + " not found"); }
	            	else {
	                	map.setCenter(point, zoom);
	        		}
    			});
				if(destination.length){
					this._geocoder.getLatLng(destination,function(point){
						if(!point){alert(destination+" not found.");}
						else{
							if(customimage == true){
								var customiconsize = new GSize(width, height);
				    			var customicon = new GIcon(G_DEFAULT_ICON, imageurl);
				    			customicon.iconSize = customiconsize;
				    			var marker = new GMarker(point, { icon: customicon });
				    			map.addOverlay(marker);
							}
							else{
								var marker = new GMarker(point);
								map.addOverlay(marker);
							}
							if(customtooltip == true){
								marker.openInfoWindowHtml(tooltipinfo);
							}
						}
					});
				}
			}
	    	//make this available to the click element
        	$.data($(this.Settings.submit)[0], 'inst', this);
	    	$(this.Settings.submit).click(function(e) {
        		e.preventDefault();
            	var obj = $.data(this, 'inst');
				var outputto = obj.Settings.directions;
            	var from = $(obj.Settings.start).val();
            	var to = $(obj.Settings.end).val();
				map.clearOverlays();
				var gdir = new GDirections(map, document.getElementById(outputto));
				gdir.load("from: " + from + " to: " + to);
				//open the google window
            	//window.open("http://maps.google.com/maps?saddr=" + from + "&daddr=" + to, "GoogleWin", "menubar=1,resizable=1,scrollbars=1,width=750,height=500,left=10,top=10");
        	});
    		return this;
		}
	});
	$.extend($.fn, {
		googleMap: function(options) {
    		// check if a map was already created
        	var mapInst = $.data(this[0], 'googleMap');
        	if (mapInst) {
        		return mapInst;
        	}
	    	//create a new map instance
        	mapInst = new GoogleMapObject($(this).attr('id'), options);
        	$.data(this[0], 'googleMap', mapInst);
        	return mapInst;
    	}
	});
})(jQuery);