/* Demo application for Addressbook 
*/
// Some From http://brondsema.net/blog/index.php/2006/11/25/javascript_rdfparser_from_tabulator


// For quick access to those namespaces:
FOAF = Namespace("http://xmlns.com/foaf/0.1/")
RDF = Namespace("http://www.w3.org/1999/02/22-rdf-syntax-ns#")
RDFS = Namespace("http://www.w3.org/2000/01/rdf-schema#")
OWL = Namespace("http://www.w3.org/2002/07/owl#")
DC = Namespace("http://purl.org/dc/elements/1.1/")
RSS = Namespace("http://purl.org/rss/1.0/")
XSD = Namespace("http://www.w3.org/TR/2004/REC-xmlschema-2-20041028/#dt-")
CONTACT = Namespace("http://www.w3.org/2000/10/swap/pim/contact#")



card = function(who) {
    document.write('<div>')
    var image = kb.any(who, FOAF('img'));
    if (!image) image = kb.any(who, FOAF('depiction')); 
    if (image) {
	document.write('<img src="' + image.uri +'" align="right" height="100"/>');
    }
    var nam = kb.any(who, FOAF('name'));
    if (!nam) { nam = "???";}
    document.write("<h3>"+nam+"</h3>");

    nam = kb.any(who, FOAF('phone'));
    if (nam) { 
	document.write("<p>"+nam+"</p>");
    }

    document.write('</div>')
}




// TestStore implementation from dig.csail.mit.edu/2005/ajar/ajaw/test/rdf/rdfparser.test.html
// RDFIndexedFormula from dig.csail.mit.edu/2005/ajar/ajaw/rdf/identity.js
//  (extends RDFFormula from dig.csail.mit.edu/2005/ajar/ajaw/rdf/term.js which has no indexing and smushing)
// for the real implementation used by Tabulator which uses indexing and smushing

// var kb = new TestStore()

var kb = new RDFIndexedFormula()

var uri = 'http://www.w3.org/People/Berners-Lee/card#i';

var person = kb.sym(uri)
var docURI = uri.slice(0, uri.indexOf('#'))
kb.load(docURI)
card(person)


// document.write("<p><small>"+uri+ " Size: "+kb.statements.length+"</small></p>")

var friends = kb.each(person, FOAF('knows')); 
var i, n = friends.length, friend;
document.write("<p>"+n+" acquaintainces</p>")
for (i=0; i<n; i++) {
    friend = friends[i];
    furi = friend.uri
    if (furi && (furi.indexOf('#') >= 0)) {
//	document.write('<small>Loading:  '+furi+'</small>') 
	furi = furi.slice(0, furi.indexOf('#'))
	kb.load(furi)
    }

    sa = kb.any(friend, RDFS('seeAlso'))
    if (sa) {
//	document.write('<small>See also: '+sa.uri+'</small>') 
	kb.load(sa.uri)
    }

    card(friend)    
}