/**
 * Copyright (C) 2011, MOLE research group at AKSW,
 * University of Leipzig
 *
 * SpatialSemanticBrowsingWidgets 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.
 *
 * SpatialSemanticBrowsingWidgets 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($) {

function set () {

	var result = {};

	for (var i = 0; i < arguments.length; i++) {
		result[arguments[i]] = true;
	}

	return result;
}

function firstTagValue(tags, key) {
	return key in tags ? tags[key][0] : "";
}

function renderNode(id, tags) {

	
	var ret = "";	
	
	ret += '<b>'+ firstTagValue(tags, 'rdfs:label') + '</b>';		
	ret += "<br />";

	ret += "<a href='" + id + "' target='_blank'>" + id + "</a><br />";
	ret += "<hr />";

	//ret += "<a href='http://openstreetmap.org/edit?editor=potlatch&lat=" + xlat + "&lon=" + xlon + "&zoom=18&node=" + id + "' target='_blank'>Edit on OpenStreetMap</a><br />";

	
	var header = "";
	
	var depiction = firstTagValue(tags, 'foaf:depiction');
	if(depiction != "") {
		header += "<img style='float:right; width:128px; height:128px; margin: 5px' src = '" + depiction + "' />";
	}
	
	
	var abstractEn = firstTagValue(tags,'dbpedia:ontology/abstract@en');
	if(abstractEn != "") {
		header += "<p style='margin:5px'>" + abstractEn + "</p>";
	}

	
	ret += header;
	ret += "<p style='clear:right;' />";
	
	if(depiction || abstractEn) {
		ret += "<hr />";
	}
	
	var ignoredTags = set('rdfs:label', 'description', 'image', 'source_ref');
	
	ret += "<table>";
	
	for(var key in tags) {
		if(key in ignoredTags) {
			continue;
		}
		
		var values = key in tags ? tags[key] : [];
		
		for(var j = 0; j < values.length; ++j) {
			var value = values[j];
			
			if(value.startsWith("http://")) {
				value = "<a href='" + value + "' target='_blank'>" + value + "</a>";
			}
			
			
			ret += "<tr>";
			
			ret += "<td>" + key + "</td><td>" + value + "</td>";
			
			ret += "</tr>";
		}
	}

	ret+="</table>";
	
	
	return ret;
}

	
	

$.widget("ui.ssb_facts", {

	// TODO: Add _init method for backward compatibility
	
	_create: function() {

		this.domElement = this.element.get(0);

		this.repaintScheduler = new Scheduler();

		/*
		
		this.instanceToLabel = this.options.instanceToLabel;
		this.instanceToType  = this.options.instanceToType;
		this.schemaIcons = this.options.schemaIcons;	
		*/

		
		var self = this;
		
		$(this.instanceToLabel).bind("changed", function(event, change) {
			self.repaintScheduler.schedule(function() { self.onDataChange(change); });
		});
	},

	setData: function(subject, jsonRdfs) {
		//notify("data", "changed");
		//var map = jsonRdfResultSetToMap(JSON.parse(response), "s", "o");
		
		var html = "";
			
		html += "<a id='factsToggle' href='#'>hide</a>";
		html += "<hr />";

		html += "<div class='ssb-container'>";
		
		var tags = extractTagsMulti(jsonRdfs);
		
		html += renderNode(subject, tags);


		html += "</div>";
		
		$(this.domElement).html(html);
		
		var self = this;
		$("#factsToggle").click(function() {
			$(self.domElement).slideUp("slow");
		});
	}
});

})(jQuery);