/*-----------------------------*/
/*
/* Cofman mapWidget v1.0
/*
/* REQUIRES:
/* - Pre load Google MAPS api, with the same language as mapWidget
/* - jQuery (1.5) + jQuery UI (1.8)
/*
/*-----------------------------*/
if (!Array.prototype.indexOf) {
	Array.prototype.indexOf = function(elt /*, from*/) {
		var len = this.length;
		var from = Number(arguments[1]) || 0;
	    from = (from < 0)
			? Math.ceil(from)
			: Math.floor(from);
		if (from < 0)
			from += len;

		for (; from < len; from++) {
			if (from in this && this[from] === elt)
				return from;
		}
		return -1;
	};
}

(function( $ ){
	// Default settings
	var mapWidget = {options:{}};
	var settings = {
		'service' : 'http://com.cofman.org/map-widget/service.php', // Cookie less domain?
		'searchOverMap' : true,
		'field': {
			'search' : 'search',
			'dist' : 'radius',
			'lat' : 'latitude',
			'lng' : 'longitude'
		},
		'bounds': {
			ne: { lat: 58.028460, lng: 15.229800 },
			sw: { lat: 54.431700, lng: 7.855200 }
		},
		'center': { lat: 56.263920, lng: 9.501785 },
		'marker': false,
		'types': ['geocode'],
		'disallowed': new Array('route','street_address','point_of_interest','bus_station','museum','transit_station','train_station','university','cemetery','airport','administrative_area_level_2'),
		'language': '',
		'onClick': null
	};

	var ajaxConf = {
		type			: 'GET',
		crossDomain		: true,
		cache			: true,
		dataType		: 'jsonp',
	//	jsonp			: 'callback',
		jsonpCallback	: 'jsonp',
		complete		: function(){xhr=null;}
	};

	var xhr = null, query = '', options = new Array, geocodes = new Array;
	var autocompleteSources = function(request, response) {
		if ( request.term == 'undefined' )	{ return; }
		if ( xhr != null )					{ return; }

		options = $.map(options, function(item){
			if ( item.label.indexOf(request.term) == 0 ) {
				return item;
			}
		});
		if ( request.term.indexOf(query) != 0 || options.length > 5 || options.length == 0 ) {
			query = request.term;
			xhr = $.ajax( settings.service, $.extend({data:{query:request.term,language:settings.language},success:function(resp){
				options = resp;
				response(options);
				return;
			}},ajaxConf));
		}
		else {
			response(options);
		}

		var geolimit = ', DK, Europe';
		mapWidget.geocoder.geocode( {'address': request.term + geolimit, 'region': 'DK' }, function(results, status) {
			var geoData = {item:[]};

			geoData.item = $.map(results, function(item) {
				if ( settings.disallowed.indexOf(item.types[0]) != -1 )	{ return; }
				if ( geocodes.indexOf(item.formatted_address) != -1 )	{ return; }
				var addr = {};
				var itemName = item.address_components[0].long_name, itemNameAdd = '';
				if ( 'neighborhood' == item.types[0] ) {
					for (var k in item.address_components) {
						addr[item.address_components[k].types[0]] = item.address_components[k].long_name;
					}
					itemName += ', ' + addr['postal_code'] + ' ' + addr['administrative_area_level_2'];
				}
				else if ( 'locality' == item.types[0] ) {
					for (var k in item.address_components) {
						if ( item.address_components[k].types )
							addr[item.address_components[k].types[0]] = item.address_components[k].long_name;
					}
					if ( addr['locality'] != addr['administrative_area_level_2'] && addr['postal_code'] ) {
						itemName += ', ' + addr['postal_code'] + ' ' + addr['administrative_area_level_2'];
					}
				}

				geocodes.push(item.formatted_address);

				var data = {
					name:		itemName,
					address:	item.formatted_address,
					type:		item.types[0],
					lat:		item.geometry.location.lat(),
					lng:		item.geometry.location.lng(),
					language:	settings.language
				};
				
				var bounds = item.geometry.bounds ? item.geometry.bounds : item.geometry.viewport;
				data.bound = {
					'ne_lat': bounds.getNorthEast().lat(),
					'ne_lng': bounds.getNorthEast().lng(),
					'sw_lat': bounds.getSouthWest().lat(),
					'sw_lng': bounds.getSouthWest().lng()
				};
	
				return data;
			});


			if ( geoData.item.length > 0 ) {
				// Send back home.. and get new
				geoData.query = request.term;
				geoData.language = settings.language;
				xhr = $.ajax( settings.service, $.extend({data:geoData,success:function(resp){
					query = geoData.query;
					options = resp;
					response(options);
					return;
				}},ajaxConf));
			};
		});
	};

	// Methods for mapWidget
	var methods = {
		init : function( options ) {
			if ( this.length != 1) {
				return false;
			}
			if ( !$(this).attr('id') ) {
				return false;
			}

			var mapCanvasId = $(this).attr('id');
			
			$.extend(settings, options);
			if ( typeof settings.map == 'object' ) {
				$.extend(mapWidget.options, settings.map);
			}

			if ( settings.searchOverMap === true ) {
				var $search = $('#' + settings.field.search).hide();
				var width	= $(this).width() - $search.css('padding-left').replace('px','') - $search.css('padding-right').replace('px', '');
				var pos		= $(this).position();
				$search.css({left: (pos.left+40)+'px', top: (pos.top+8)+'px', position: 'absolute', zIndex: 1000, width: (width-50)+'px' }).show();
			}

			mapWidget.options = $.extend({
				center: new google.maps.LatLng(settings.center.lat,settings.center.lng),
				zoom: 6,
				mapTypeId: google.maps.MapTypeId.ROADMAP,
				mapTypeControl: false,
				streetViewControl: false
			},mapWidget.options);

			mapWidget.geocoder = new google.maps.Geocoder();
			mapWidget.map = new google.maps.Map(document.getElementById(mapCanvasId), mapWidget.options)

			if ( options.bounds || ( !options.map && !options.center ) ) {
				var ne = new google.maps.LatLng(settings.bounds.ne.lat,settings.bounds.ne.lng);
				var sw = new google.maps.LatLng(settings.bounds.sw.lat,settings.bounds.sw.lng);
				mapWidget.map.fitBounds(new google.maps.LatLngBounds(sw,ne));
			}

			var markerIcon = new google.maps.MarkerImage('http://com.cofman.org/map-widget/marker.png',
				new google.maps.Size(7,7),
				new google.maps.Point(0,0),
				new google.maps.Point(4,4)
			);
			mapWidget.marker = new google.maps.Marker({
				map: mapWidget.map,
				icon: markerIcon
			});
			if ( options.marker === true ) {
				mapWidget.marker.setPosition(mapWidget.options.center);
			}

			google.maps.event.addListener(mapWidget.map, 'click', function(event) {
				methods.reverseGeocoder(event.latLng);
				mapWidget.marker.setPosition(event.latLng);
			});


			$('#'+settings.field.search).autocomplete({
				minLength: 2,
				//This bit uses the geocoder to fetch address values
				source: autocompleteSources,
				//This bit is executed upon selection of an address
				select: function(event, ui) {
					methods.response({
						search:	ui.item.label,
						lat:	ui.item.lat,
						lng:	ui.item.lng,
						dist:	ui.item.dist
					});
					var location = new google.maps.LatLng(ui.item.lat, ui.item.lng);
					if (ui.item.bound) {
						var ne = new google.maps.LatLng(ui.item.bound['ne_lat'],ui.item.bound['ne_lng']);
						var sw = new google.maps.LatLng(ui.item.bound['sw_lat'],ui.item.bound['sw_lng']);
						mapWidget.map.fitBounds(new google.maps.LatLngBounds(sw,ne));
					}
					else {
						mapWidget.map.setCenter(location);
					}
					mapWidget.marker.setPosition(location);
					$.ajax( settings.service, $.extend({data:{id:ui.item.id,action:'select'},success:function(resp){return true;}},ajaxConf));
				}
			});
			$('.ui-autocomplete').css({width:$('#'+settings.field.search).width()+'px'});

		//	google.maps.event.addListener(mapWidget.marker, 'drag', methods.reverseGeoMarker);
			google.maps.event.addListener(mapWidget.marker, 'position_changed', methods.reverseGeoMarker);

		},
		reverseGeoMarker : function( ) {
			mapWidget.geocoder.geocode({'latLng': mapWidget.marker.getPosition()}, function(results, status) {
				if (status == google.maps.GeocoderStatus.OK) {
					if (results[0]) {
						// TODO: Something..
					}
				}
			});
		},
		reverseGeocoder : function( latLng ) {
			var data = {
				lat: latLng.lat(),
				lng: latLng.lng(),
				language: settings.language
			};

			$.ajax( settings.service, $.extend({data:data,success:function(resp){
				if ( resp.length == 0 ) {
					methods.response({ search: '', lat: latLng.lat(), lng: latLng.lng(), dist: 0 });
				}
				methods.response(resp);
				if ( typeof settings['onClick'] == 'function' ) {
					settings['onClick'].call();
				}
			}},ajaxConf));
		},
		response: function( resp ) {
			if ( typeof resp !== 'object' ) {
				return false;
			}
			for (var k in resp) {
				if ( $('#' + settings['field'][k]).is('input') ) {
					$('#' + settings['field'][k]).val(resp[k]);
				}
				else {
					$('#' + settings['field'][k]).html(resp[k]);
				}
			}
		}
	};

	$.fn.mapWidget = function( method ) {
		if ( methods[method] ) {
			return methods[method].apply( this, Array.prototype.slice.call( arguments, 1 ));
		}
		else if ( typeof method === 'object' || ! method ) {
			return methods.init.apply( this, arguments );
		}
		else {
			$.error( 'Method ' +  method + ' does not exist on jQuery.mapWidget' );
		}
	};
})( jQuery );