<?php
require_once dirname(__FILE__) . "/../../conf/atomFeedClient.conf";
//require_once dirname(__FILE__) . "/../../tools/wms_extent/extent_service.conf";
?>

var mapframe_dataset_list, mapframe_file_list, datasetSelect, file_list, bboxDataset, bboxFiles, formats, sf;


function updateFormats() {
            var in_options = {
                'internalProjection': mapframe_dataset_list.baseLayer.projection,
                'externalProjection': new OpenLayers.Projection("EPSG:4326")
            };   
            var out_options = {
                'internalProjection': mapframe_dataset_list.baseLayer.projection,
                'externalProjection': new OpenLayers.Projection("EPSG:900913")
            };
            var gmlOptions = {
                featureType: "feature",
                featureNS: "http://example.com/feature"
            };
            var gmlOptionsIn = OpenLayers.Util.extend(
                OpenLayers.Util.extend({}, gmlOptions),
                in_options
            );
            var gmlOptionsOut = OpenLayers.Util.extend(
                OpenLayers.Util.extend({}, gmlOptions),
                out_options
            );
            var kmlOptionsIn = OpenLayers.Util.extend(
                {extractStyles: true}, in_options);
            formats = {
              'in': {
                wkt: new OpenLayers.Format.WKT(in_options),
                geojson: new OpenLayers.Format.GeoJSON(in_options),
                georss: new OpenLayers.Format.GeoRSS(in_options),
                gml2: new OpenLayers.Format.GML.v2(gmlOptionsIn),
                gml3: new OpenLayers.Format.GML.v3(gmlOptionsIn),
                kml: new OpenLayers.Format.KML(kmlOptionsIn),
                atom: new OpenLayers.Format.Atom(in_options),
                gpx: new OpenLayers.Format.GPX(in_options)
              }, 
              'out': {
                wkt: new OpenLayers.Format.WKT(out_options),
                geojson: new OpenLayers.Format.GeoJSON(out_options),
                georss: new OpenLayers.Format.GeoRSS(out_options),
                gml2: new OpenLayers.Format.GML.v2(gmlOptionsOut),
                gml3: new OpenLayers.Format.GML.v3(gmlOptionsOut),
                kml: new OpenLayers.Format.KML(out_options),
                atom: new OpenLayers.Format.Atom(out_options),
                gpx: new OpenLayers.Format.GPX(out_options)
              } 
	};
}

function init(){
	//generate 2 Mapframes	
	//add active class to dataset info before showing map, afterwords remove it!
	$('#dataset_info').toggleClass('active');
	mapframe_dataset_list = new OpenLayers.Map('mapframe_dataset_list');
	$('#dataset_info').toggleClass('active');
	$('#representations').toggleClass('active');
	mapframe_file_list = new OpenLayers.Map('mapframe_file_list');
	$('#representations').toggleClass('active');
	<?php echo "\n".$backgroundLayer_1."\n"?>
	<?php echo "\n".$backgroundLayer_2."\n"?>
	//var wms_osm = new OpenLayers.Layer.WMS( "OpenLayers WMS",
        //        "http://osm.omniscale.net/proxy/service?", {layers: 'osm'}, {singleTile: true});
	//var wms_osm = new OpenLayers.Layer.WMS( "OpenLayers WMS",
        //        "http://osm.omniscale.net/proxy/service?", {layers: 'osm'}, {singleTile: true});
	<?php echo "\n".$backgroundLayer_3."\n"?>
	<?php echo "\n".$backgroundLayer_4."\n"?>
	//Vector layer for the georss polygons of the service feed - maybe more than one 
	bboxDataset = new OpenLayers.Layer.Vector("Dataset bounding boxes");
	//Vector layer for the georss polygons of one single data feed entry - maybe more than one if the dataset is tiled into different sections 
	bboxFiles = new OpenLayers.Layer.Vector("File bounding boxes");
	mapframe_dataset_list.addLayers([<?php echo $addBackgroundLayerUpper; ?>]);
	mapframe_dataset_list.addLayers([bboxDataset]);
	mapframe_dataset_list.addControl(new OpenLayers.Control.MousePosition());
	mapframe_dataset_list.addControl(new OpenLayers.Control.PanPanel());
	mapframe_file_list.addLayers([<?php echo $addBackgroundLayerLower; ?>]);
	mapframe_file_list.addLayers([bboxFiles]);
	mapframe_file_list.addControl(new OpenLayers.Control.MousePosition());
	mapframe_file_list.addControl(new OpenLayers.Control.PanPanel());
	updateFormats();
	//initialize mapframes
	mapframe_dataset_list.setCenter(new OpenLayers.LonLat(<?php echo $olCentreLon; ?>, <?php echo $olCentreLat; ?>), <?php echo $olScale; ?>);
	mapframe_file_list.setCenter(new OpenLayers.LonLat(<?php echo $olCentreLon; ?>, <?php echo $olCentreLat; ?>), <?php echo $olScale; ?>);
	resetForm();
	//start parsing when no empty string was found in input for url
	if ($('#download_feed_url').val() != "") {
		resetForm();
		method =  "getServiceFeedObjectFromUrl";
        	data = $("#download_feed_url").val();
		//call server by ajax function
		callServer(data,method);
	}
	//initialize button for load service feed - the first feed will be parsed.
	$(document).ready(function(e) {
    		$('#download_feed_button').click(function() {
			resetForm();
			method =  "getServiceFeedObjectFromUrl";
        		data = $("#download_feed_url").val();
			//call server by ajax function
			callServer(data,method);
    		});
		$('.example_service_feed').click(function() {
			//alert('click');
			resetForm();
			method =  "getServiceFeedObjectFromUrl";
        		data = $( this ).attr('value');
			//call server by ajax function
			callServer(data,method);
    		});
		$('#stop_parsing').click(function () {
  			alert("test");
		});
	});
	//don't show elements of dataset feed
	//
}

//central function to call server by ajax, result is a featureCollection which is generated by mapbenders server component
function callServer(data,method,id) {
	if (id === undefined) id = 0;
	//alert("ajax call begin");
	if (method == "getServiceFeedObjectFromUrl") {
		//$("#parse_service_feed_modal").toggle();
		$("#loading_image_service").css("display","block");
	}
	if (method == "getDatasetFeedObjectFromUrl") {
		//$("#parse_dataset_feed_modal").toggle();
		$("#loading_image_dataset").css("display","block");
	}
	$.ajax({
  		url: '../plugins/mb_downloadFeedServer.php',
  		type: "post",
		async: false, //cause reading the first feed may take longer than the second
		data: {url: data, method: method , id: id},
       		dataType: "json",
  		success: function(result) {
			if (method == "getServiceFeedObjectFromUrl") {
				//hide modal
				//$("#parse_dataset_feed_modal").toggle();
				$("#loading_image_service").css("display","none");
				//select tab
				$('#mytabs a[href="#dataset_info"]').tab('show');
				//draw georss polygons from service feed 
				drawMetadataPolygons(result);
				//show datasets in a dropdown list
				showDatasetList(result);
			}
			if (method == "getDatasetFeedObjectFromUrl") {
				//function to draw bboxes of single link to data tile and the corresponding list of tiles 
				//alert("ajax datasetfeed read!");	
				//hide modal
				//$("#parse_service_feed_modal").toggle();
				$("#loading_image_dataset").css("display","none");
				//select tab
				//$('#mytabs a[href="#representations"]').tab('show');
				showDatasetEntryList(result, id);
				
			}
			
 		}
	});
	return false;
}

function resetForm() {
	//reset form
	//don't show elements of dataset feed
	$("#representation_select").css("display","none");
	$("#representation_info").css("display","none");
	$("#dataset_information").css("display","none");
	$("#capabilities_hybrid").css("display","none");
	$("#label_capabilities_hybrid").css("display","none");
	$("#label_dataset_select").css("display","none");
	//change size of outer fieldset
	$("#client").css("height","450px");
	$("#download_link_list").remove();
	$("#download_link").remove();
	//$('#dataset_select').remove();
	$("#tab_header_number_datasets").text("");
	$("#tab_header_number_representations").text("");
	$("#number_of_tiles").text("");
	$('.selectpicker').selectpicker('destroy');
	//$('.dropdown-toggle').dropdown()

}

function showDatasetList(featureCollection,id) {
	resetForm();
	if (id === undefined) id = 0;
	if (featureCollection == null) {
		alert("No parseable content found");
		return false;
	}
	//remove old dataset select option
	$('#dataset_select').remove();
	//delete identifier anchor
	$('#dataset_identifier_link').remove();
	//delete capabilities anchor
	$('#capabilities_link').remove();
	//delete old entries
	var datasetSelect =  $(document.createElement('select')).appendTo('#dataset_list');
	datasetSelect.attr({'id':'dataset_select'});
	var selectOptions = "";
	//iterate over all single features which can be identified with the entries of the inspire service feed 
	for(var i=0; i<featureCollection.features.length; ++i) {
		//fill in first title, rights and abstract in fields
		if (i == id) {
			$('#dataset_title').empty();
			$('#dataset_title').append(featureCollection.features[i].properties.title);
			$('#dataset_rights').empty();
			$('#dataset_rights').append(featureCollection.features[i].properties.rights);
			$('#dataset_abstract').empty();
			$('#dataset_abstract').append(featureCollection.features[i].properties.summary);
			//add capabilities anchor
			identifierAnchor =  $(document.createElement('a')).appendTo('#capabilities_hybrid');
			identifierAnchor.attr({'id':'capabilities_link'});
			identifierAnchor.attr({'target':'_blank'});
			identifierAnchor.attr({'href':featureCollection.features[i].properties.capabilitiesLink});
			identifierAnchor.text(featureCollection.features[i].properties.capabilitiesLink);
			//show hybrid link only if it is there
			if (typeof featureCollection.features[i].properties.capabilitiesLink !== 'undefined' && featureCollection.features[i].properties.capabilitiesLink !== '' && featureCollection.features[i].properties.capabilitiesLink !== null) {	
				$("#capabilities_hybrid").css("display","block");
				$("#label_capabilities_hybrid").css("display","block");
			}
			//add identifier anchor
			identifierAnchor =  $(document.createElement('a')).appendTo('#dataset_identifier');
			identifierAnchor.attr({'id':'dataset_identifier_link'});
			identifierAnchor.attr({'uuid':featureCollection.features[i].properties.code});
			identifierAnchor.attr({'href':'../php/mod_iso19139ToHtml.php?url='+encodeURIComponent(featureCollection.features[i].properties.metadataLink)});
			identifierAnchor.attr({'target':'_blank'});
			identifierAnchor.text(featureCollection.features[i].properties.namespace+"#"+featureCollection.features[i].properties.code);
		}
		selectOptions = selectOptions+"<option value='"+featureCollection.features[i].properties.datasetFeedLink+"' url='"+featureCollection.features[i].properties.datasetFeedLink+"' optionid='"+i+"'>"+featureCollection.features[i].properties.title+"</option>";
	
	}
	//add number of datasets to tab header
	$("#tab_header_number_datasets").text(" "+"("+featureCollection.features.length+")");
	datasetSelect.append(selectOptions);
	//following has to be enabled for boootstrap selectboxes
	datasetSelect.addClass('selectpicker');
	datasetSelect.attr({'data-style':'btn-primary'});
	datasetSelect.attr({'data-width':'100%'});
	datasetSelect.attr({'data-live-search':'true'});
	$("#dataset_information").css("display","block");
	$("#label_dataset_select").css("display","block");
	//preselect option
	$("#dataset_select option[optionid='" + id + "']").attr("selected","selected");
	$('#dataset_select').bind('change', function() {
		var $this = $(this);
		optionSelected = $(this).find('option:selected').attr('optionid');
		//alert(optionSelected);	
		showDatasetList(featureCollection,optionSelected);
		//zoom viewer to extent and highlight vector of current extent
		drawMetadataPolygon(featureCollection.features[optionSelected]);
		method =  "getDatasetFeedObjectFromUrl";
        	data = $this.val();
		//resetForm();
		callServer(data,method);
		
	});
	method =  "getDatasetFeedObjectFromUrl";
	//call second feed with first entry for default
        data = featureCollection.features[0].properties.datasetFeedLink;
	$('.selectpicker').selectpicker('refresh');
	datasetFeedObject = callServer(data,method);	
}

function showDatasetEntryList(featureCollection, id) {
	if (id === undefined) id = 0;
	if (featureCollection == null) {
		alert("No parseable content found");
		return false;
	}
	//remove old select element for the different possible representations (formats, crs, ...)
	$('#dataset_representation_list').empty();
	//generate new select element 
	var datasetEntrySelect =  $(document.createElement('select')).appendTo('#dataset_representation_list');
	datasetEntrySelect.attr({'id':'dataset_representation_select'});
	//initialize options
	var selectROptions = "";
	//iterate over all possible representations, which are modeled as entries in the dataset feed (here features of the featureCollection)
	for(var i=0; i<featureCollection.features.length; ++i) {
		selectROptions = selectROptions+"<option value='"+i+"' url='"+featureCollection.features[i].properties.datasetFeedLink+"'>"+featureCollection.features[i].properties.title+"</option>";
	}
	$("#tab_header_number_representations").text(" "+"("+featureCollection.features.length+")");
	datasetEntrySelect.append(selectROptions);
	//following has to be enabled for boootstrap selectboxes
	datasetEntrySelect.addClass('selectpicker');
	datasetEntrySelect.attr({'data-style':'btn-primary'});
	datasetEntrySelect.attr({'data-width':'100%'});
	datasetEntrySelect.selectpicker('refresh');
	fillSectionList(featureCollection, id);
	$('#dataset_representation_select').bind('change', function() {
    		var $this = $(this);
		fillSectionList(featureCollection,$this.val());
	});
}

function fillSectionList(featureCollection, k) {
		bboxFiles.removeAllFeatures();
		$('#section_option').remove();
		//initialize option string
		var selectFOptions = "";
		//count number of links in representation
		var numberOfLinks = featureCollection.features[k].properties.link.length;
		if (numberOfLinks >= 1 || numberOfLinks === undefined) {
			//show list 
			$("#representation_select").css("display","block");
			//deactivate mapframe2 by default
			$("#mapframe_file_list").css("display","none");
			//$("#multi_select").css("display","none");
			$("#representation_info").css("display","block");
			//extent size of outer fieldset
			$("#client").css("height","730px");
		} else {
			alert("No links to datasets or parts of them found in feed!");
		}
		$("#download_link_list").remove();
		downloadLinkList = $(document.createElement('ul')).appendTo('#section_list');
		downloadLinkList.attr({'id':'download_link_list'});
                for (var i = 0; i < numberOfLinks; i++) {
			if (featureCollection.features[k].properties.link[i]['@attributes'].bbox == '' || featureCollection.features[k].properties.link[i]['@attributes'].bbox === undefined) {
				//show simple link foreach part
				//$("#download_link").remove();
				//show Downloadlink
				if (featureCollection.features[k].properties.link[i]['@attributes'].length == '' || featureCollection.features[k].properties.link[i]['@attributes'].length === undefined) {
					downloadLink = "<li><a target='_blank' value='download_link_"+i+"' href='"+featureCollection.features[k].properties.link[i]['@attributes'].href+"' title='"+featureCollection.features[k].properties.link[i]['@attributes'].title+"'>"+featureCollection.features[k].properties.link[i]['@attributes'].title+"</li>";
				} else {
					downloadLink = "<li><a target='_blank' value='download_link_"+i+"' href='"+featureCollection.features[k].properties.link[i]['@attributes'].href+"' title='"+featureCollection.features[k].properties.link[i]['@attributes'].title+"'>"+featureCollection.features[k].properties.link[i]['@attributes'].title+" - (~"+featureCollection.features[k].properties.link[i]['@attributes'].length / 1000000 +" MB)"+"</li>";
				}
				//append link
				$('#download_link_list').append(downloadLink);
				//selectFOptions = selectFOptions+"<option value='"+i+"' url='"+featureCollection.features[k].properties.link[i]['@attributes'].href+"' title='"+featureCollection.features[k].properties.link[i]['@attributes'].title+"'  onclick='window.open(\""+featureCollection.features[k].properties.link[i]['@attributes'].href+"\");'>"+featureCollection.features[k].properties.link[i]['@attributes'].title+"</option>";
			} else {
                		ext = featureCollection.features[k].properties.link[i]['@attributes'].bbox;
				extArrayNew = new Array();
				extArray = ext.split(" ");
				//sort array to lat lon
				extArrayNew[0] = extArray[1];
				extArrayNew[1] = extArray[0];
				extArrayNew[2] = extArray[3];
				extArrayNew[3] = extArray[2];
                		bound = OpenLayers.Bounds.fromArray(extArrayNew);
				attributes = {id: i, url:featureCollection.features[k].properties.link[i]['@attributes'].href, title: featureCollection.features[k].properties.link[i]['@attributes'].title};
                		box = new OpenLayers.Feature.Vector(bound.toGeometry(),attributes);
                		bboxFiles.addFeatures(box);
				//selectFOptions = selectFOptions+"<option value='"+i+"' url='"+featureCollection.features[k].properties.link[i]['@attributes'].href+"' title='"+featureCollection.features[k].properties.link[i]['@attributes'].title+"' onclick='highlightFeatureIndexById("+i+",true);' onmouseover='highlightFeatureIndexById("+i+",false);'>"+featureCollection.features[k].properties.link[i]['@attributes'].title+"</option>";
			}
				
               	}
		//set number of links:
		$("#number_of_tiles").text(" "+"("+numberOfLinks+"<?php echo " tile(s)"?>"+")");

		//count features of bboxFiles
		//bboxFiles if not available show error message
		//selectFObject = $(document.createElement('select')).appendTo('#section_list');
		//selectFObject.attr({'id':'section_option'});
		//selectFObject.attr({'multiple':'multiple'});
		//add options 
		//selectFOptionsObject = $('#section_option').append(selectFOptions);
		//selectFOptionsObject.attr({'width': 300});
		//alert(bboxFiles.features.length);
		if (bboxFiles.features.length >= 1) {//TODO
			//show mapframe
			$("#mapframe_file_list").css("display","block");
			//extent size of outer fieldset
			$("#client").css("height","900px");
			bound = bboxFiles.getDataExtent();
			//Add wms layer from mb_metadata table (bounding_geom column)
			<?php echo "\n".$metadataPolygonLayer."\n"?>
			mapframe_file_list.addLayers([wms222]);
			//Add polygon layer from mb_metadata tables bounding_geom column
			mapframe_file_list.zoomToExtent(bound);
			//set number of tiles
			bboxFiles.features.length
			bboxFiles.events.on({
   				featureselected: function(event) {
        				var feature = event.feature;
        				var id = feature.attributes.id;
					var url = feature.attributes.url;
					$("#download_link").remove();
					//show Downloadlink
					downloadLink = $(document.createElement('a')).appendTo('#section_list');
					downloadLink.attr({'href':url});
					downloadLink.attr({'target':'_blank'});
					downloadLink.attr({'id':'download_link'});
					if (feature.attributes.length == '' || feature.attributes.length === undefined) {
						downloadLink.text(feature.attributes.title);
					} else {
						downloadLink.text(feature.attributes.title+" - (~"+feature.attributes.length / 1000000+" MB)");
					}
					//$('#section_option option').removeAttr('selected')
					//$("#section_option option[value='"+id+"']").attr('selected',true);
					//window.open(url,'download_window');

					/*if ($('#multi_select').is(':checked')) {
						alert("checked");
					} else {
						alert("un-checked");
					}
					alert(url);*/				
    				}
			});
		
                	sf = new OpenLayers.Control.SelectFeature(bboxFiles);
                	mapframe_file_list.addControl(sf);
                	sf.activate();
		}
}

function drawMetadataPolygons(featureCollection) {
	 var type = "geojson";
         var features = formats['in'][type].read(featureCollection);
         var bounds;
         if(features) {
             if(features.constructor != Array) {
                 features = [features];
             }
             for(var i=0; i<features.length; ++i) {
                 if (!bounds) {
                     bounds = features[i].geometry.getBounds();
                 } else {
                     bounds.extend(features[i].geometry.getBounds());
                 }
             }
	     //delete old features:
	     bboxDataset.removeAllFeatures();
             bboxDataset.addFeatures(features);
             mapframe_dataset_list.zoomToExtent(bounds);
	}
}

function drawMetadataPolygon(feature) {
	 var type = "geojson";
         var features = formats['in'][type].read(feature);
         var bounds;
         if(features) {
             if(features.constructor != Array) {
                 features = [features];
             }
             for(var i=0; i<features.length; ++i) {
                 if (!bounds) {
                     bounds = features[i].geometry.getBounds();
                 } else {
                     bounds.extend(features[i].geometry.getBounds());
                 }
             }
	     //delete old features:
	     bboxDataset.removeAllFeatures();
             bboxDataset.addFeatures(features);
             mapframe_dataset_list.zoomToExtent(bounds);
	}
}

function highlightFeatureIndexById(id, open) {
	features = bboxFiles.features;
	for(var i=0; i<features.length; ++i) {
		if(features[i].attributes.id == id) {
			index = i;
			break;
		}
	}
	//unselect all if one is selected 
	sf.unselectAll();
	sf.select(bboxFiles.features[index]);
	if (open) {
		window.open(bboxFiles.features[index].attributes.url,'download_window');
	}
}