/**
 * Tosom Google Maps Handler
 *  
 * @licence;
 * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!  
 *
 * It's strictly prohibited the use, re-use, copy, re-sell or alteration 
 * of this code without the explicit consent from Tosom s.r.l.
 * email: info[at]tosom.it
 * 
 * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 * 
 * @author: Toniolo Marco
 * @version: 1.1
 * 
 * @uses: jQuery and GoogleMaps Api
 * 
 * @features:  
 * - create google maps
 * - hadle basic and controls options
 * - create/set markers
 * - handle markers icons
 * - create info-windows
 * 
 * @Updates 
 * 1.1
 * - Better info doc with all usable parmaters.
 * - Verified loading
 * - Fixed the gmap id in initMap
 * - Removed function "trace(...)" reverted back to console.log
 * - Added attribute "debug"
 *  
 */

/**
 * TOSOM GMAP CLASS
 * @param o <object>
 * 	id        : <string> the HTML map id
 * 	center    : <array> [LAT,LON]
 * 	zoom      : <int> [0,n]
 * 	zoomMin   : <int> [0,n] 
 * 	zoomMax   : <int> [0,n]
 * 	minZoom   : <int> Alias for zoomMin
 *   maxZoom   : <int> Alias for zoomMax
 * 	mapTypeId : <string> The google map type like "roadmap"(default), "satellite", "hybrid", "terrain"
 * 	styles    : <array> WIth the gmap styles to apply Refer to https://mapstyle.withgoogle.com/
 * 	poi       : <boolean>
 * 	controls  : <obect>
 * 		confCtrl["wheel"]       : <boolean>
 * 		confCtrl["drag"]        : <boolean>
 * 		confCtrl["zoom"]        : <boolean>
 * 		confCtrl["scale"]       : <boolean>
 * 		confCtrl["type"]        : <boolean>
 * 		confCtrl["streetView"]  : <boolean>
 * 		confCtrl["fullscreen"]  : <boolean>
 * 	markers   : <array> Of object containing markers configurations:
 * 		position   : <array> [LAT,LON]
 * 		title      : <string> The Marker Title
 * 		icon       : <string> The path for the icon 
 * 
 */
function TosomMap(o)
{
	var conf     = false ;
	var elem     = false ; 
	var self     = false ;
	var gmap     = false ;
	var gmapOpts = false ;
	var debug    = true ;
		
	function build(o)
	{
		// Check debug mode
		if( debug===true )
		{ console.log("<!-- INIT TOSOM GMAPS -->") }
		//{ debug=true; delete conf.debug ; }
		
		self=this; // Scope Hack
		conf=o ; // quick options assign
		
		// CHECK OPTIONS EXISTENCE
		if( typeof o != "object" ){ console.log("TOSOM GMAP:: BUILD ERROR"+"0x001"); return ; }
		conf = o ;
		
		// Setup map options from configuration
		gmapOpts = confToGmap()
		
		// CHECK CONF MANDATORY FIELDS
		if( typeof conf.id=="undefiend" ){ console.log("TOSOM GMAP:: BUILD ERROR"+"0x002"); return ; }
		
		elem = jQuery( "#"+conf.id )
		if( !elem || elem.length!=1 ){ console.log("TOSOM GMAP:: BUILD ERROR"+"0x003"); return ; }
		
		initGmap();
			
	}
	
	/** Convert configuration into google map compliant options */
	function confToGmap()
	{
		if( typeof conf != "object" ){ return false ; }
		// SET DAFAULT GMAP OPTS
		var tmp = {
			center    : new google.maps.LatLng(45,12),
			zoom      : 10 ,
			zoomMin   : 5 , 
			zoomMax   : 15 ,
			mapTypeId : "roadmap" ,
			styles    : []
		} ; 
		
		// OVERRIDE AND APPLY CUSTOM GMAP OPTIONS
		for( var key in conf )
		{
			switch(key)
			{
				case "center":
					tmp.center = aToLL(conf[key]) ;	
				break ; 
				
				case "zoom": 
					if(!isNaN(conf[key]) && conf[key]>0 )
					{ tmp.zoom=conf[key]; }
				break ;
				
				case "zoomMin": case "minZoom":
					if(!isNaN(conf[key]) && conf[key]>0 )
					{ tmp.minZoom=conf[key]; }
				break ;
				case "zoomMax": case "maxZoom":  
					if(!isNaN(conf[key]) && conf[key]>0 )
					{ tmp.maxZoom=conf[key]; }
				break ;
				
				case "type": // roadmap, satellite, hybrid, terrain
					if( conf[key]=="roadmap" || conf[key]=="satellite" || conf[key]=="hybrid" || conf[key]=="terrain" )
					{ tmp.mapTypeId=conf[key] }
				break ;
				
				// Points Of Interests and Styles
				case "poi" :
					if( conf[key]===false )
					{tmp.styles.push( {featureType:"poi",stylers:[{visibility:"off"}]} )}
				break ;
				case "styles":
					for( var j=0 ; j<conf.styles.length; j++ )
					{ tmp.styles.push(conf.styles[j]) ;} 
				break ;
				
				case "controls": tmp = applyControls(tmp,conf[key]) ; break ;
				
			}
		};
		return tmp;
	}
	
	/** Convert tosom controls into google map compliant controls */
	function applyControls(tmp,controls)
	{
		var ctrl     = false ;
		var confCtrl = [] ; 
		
		confCtrl["wheel"]       = "scrollwheel" ;
		confCtrl["drag"]        = "draggable" ;
		confCtrl["zoom"]        = "zoomControl" ;
		confCtrl["scale"]       = "scaleControl" ;
		confCtrl["type"]        = "mapTypeControl" ;
		confCtrl["streetView"]  = "streetViewControl" ;
		confCtrl["fullscreen"]  = "fullscreenControl" ;
		
		
		for( var key in controls )
		{
			ctrl = controls[key] ;
			if( typeof confCtrl[ key ] != "undefined" )
			{
				tmp[ confCtrl[key] ] = ctrl===false?false:true ;
			}
		}
		return tmp;
	}
	
	// Array To Latitude Longitude
	function aToLL(data)
	{
		var out = false ;
		if( typeof data=="object" && typeof data[0]!="undefined" && typeof data[1]!="undefined" )
		{ out=new google.maps.LatLng(data[0],data[1]); }
		return out ;
	}
	
	function initGmap()
	{
		if(debug){ console.log("<|-- TOSOM GMAP INIT -->"); }
		
		var tmp   = false ;
		var gopts = false ;
		var gmark = false ; 
		var ginfo = false ;
		
		gmap = new google.maps.Map(document.getElementById(conf.id),gmapOpts);
		
		if( typeof conf.markers !="undefined" )
		{
			if(debug){console.log("<|-- TOSOM GMAP SETUP MARKERS -->") ;}
			
			for( var i=0 ; i<conf.markers.length ; i++ )
			{
				tmp = conf.markers[i] ;
				if(debug){ console.log("<|-- TOSOM GMAP SETUP MARKER ["+i+"] -->") ;}
				
				gopts = {
					position   : aToLL(tmp.pos) , 
					title      : (typeof tmp.title=="string"?tmp.title:"") ,
					map        : gmap  , 
					draggable  : false ,
					animation  : google.maps.Animation.DROP,
				}
				if( typeof tmp.icon=="string" )
				{
					gopts.icon = {
						url    : tmp.icon
						/*size : new google.maps.Size(40,79),
						origin : new google.maps.Point(0,0), // origin
						anchor : new google.maps.Point(0,0) // anchor*/
					};
				}
				gmark = new google.maps.Marker(gopts);
				
				if(debug)
				{
					console.log( (typeof tmp.icon=="string"?{
						url    : tmp.icon
						/*size : new google.maps.Size(40,79),
						origin : new google.maps.Point(0,0), // origin
						anchor : new google.maps.Point(0,0) // anchor*/
					}:false ) )
				}
				
				if( typeof tmp.info=="object" )
				{
					if( debug )
					{ console.log( "<|-- ENABLE INFO WINDOW ON CLICK -->" ); }
					ginfo = new google.maps.InfoWindow({
						content   : typeof tmp.info.content=="string"?tmp.info.content: "" ,
						maxWidth  : typeof tmp.info.sizeMax=="object"?tmp.info.sizeMax[0]:200 ,
						maxHeight : typeof tmp.info.sizeMax=="object"?tmp.info.sizeMax[1]:140 
					});
					google.maps.event.addListener(gmark, 'click', function(){ginfo.open(gmap,gmark);});
					
					if( typeof tmp.info.auto !="undefined" && tmp.info.auto===true )
					{google.maps.event.trigger(gmark,'click');}
				}
				
				
			}
		}
		
	}
		
	build(o);
}