import wolfpack

# rdflib
from rdflib.URIRef import URIRef
from rdflib.Literal import Literal
from rdflib.BNode import BNode
from rdflib.Namespace import Namespace
from rdflib.constants import TYPE

# Import RDFLib's default TripleStore implementation.
from rdflib.TripleStore import TripleStore

RSS = Namespace("http://purl.org/rss/1.0/")
FOAF = Namespace("http://xmlns.com/foaf/0.1/")
DC = Namespace("http://purl.org/dc/elements/1.1/")

def rdfanswer(listener, text):
	listener.say("nothing")
	store = TripleStore()
	
	
	store.load("http://www.planetrdf.com/index.rdf")
	#store.load("file://C:\\Dokumente und Einstellungen\\Sauermann\\Eigene Dateien\\1\\index.rdf")
	listener.say("on http://www.planetrdf.com/index.rdf")
	listener.say("news are:");
	
	output = ""
	
	for channel in store.subjects(TYPE, RSS["channel"]):
		# the channel
		for itemsSeq in store.objects(channel, RSS["items"]):
			
			# the items, get them
			for p, item in store.predicate_objects(itemsSeq):
				if p.startswith("http://www.w3.org/1999/02/22-rdf-syntax-ns#_"):
					try:
						# I have the item, print title
						for title in store.objects(item, RSS["title"]):
							for creator in store.objects(item, DC["creator"]):
								output += creator +": "+title + "\n"
					except:
						pass		
	listener.say(output)
						
def test(listener, speaker, text, keywords):
	rabbit = wolfpack.addnpc("jack_rabbit", speaker.pos)
	rabbit.name = "Bunny"
	
						
def myfoafs(listener, speaker, text, keywords):
	listener.say("getting friends...")
	speaker.message('zzz all follow me')
	store = TripleStore()
	# 
	#store.load("http://www.leobard.net/foaf.xml")
	store.load("http://leo.gnowsis.com/data/foaf.xml")
	# find leo
	leo = None
	for p in store.subjects(FOAF["nick"], Literal("leobard")):
		leo = p
	
	if leo == None:
		print "leo not found"
		return 1
	
	# find friends
	for person in store.objects(leo, FOAF["knows"]):
		# nick and name
		nick = ""
		name = ""
		for p in store.objects(person, FOAF["nick"]):
			nick = p + ": "
		for p in store.objects(person, FOAF["name"]):
			name = p
		listener.say(nick + name)
		
		# create mouse
		friendpet = wolfpack.addnpc("jack_rabbit", speaker.pos)
		friendpet.name = nick+name