#!bin/python
from run_local import log
from twisted.internet import reactor
import cyclone.web, cyclone.websocket
import sys, optparse, logging, subprocess
from rdflib import URIRef, RDF

sys.path.append(".")
from light9 import networking, showconfig
from light9.rdfdb.syncedgraph import SyncedGraph
from light9.namespaces import L9, DCTERMS

sys.path.append("../homeauto/lib")
sys.path.append("/home/drewp/projects/homeauto/lib")
from cycloneerr import PrettyErrorHandler

class EffectEdit(cyclone.web.RequestHandler):
    def get(self):
        self.write(open("light9/effecteval/effect.html").read())

class EffectData(cyclone.websocket.WebSocketHandler):
    """
    stays alive for the life of the effect page
    """
    def connectionMade(self, *args, **kwargs):
        log.info("websocket opened")
        self.uri = URIRef(self.get_argument('uri'))
        self.sendMessage({'hello': repr(self)})

        self.graph = self.settings.graph
        self.graph.addHandler(self.updateClient)

    def updateClient(self):
        # todo: if client has dropped, abort and don't get any more
        # graph updates
        self.sendMessage({'code': self.graph.value(self.uri, L9['code'])})
        
    def connectionLost(self, reason):
        log.info("websocket closed")

    def messageReceived(self, message):
        log.info("got message %s" % message)
        # write a patch back to the graph
        
class App(object):
    def __init__(self, show):
        self.show = show
        self.graph = SyncedGraph("effectEval")
        SFH = cyclone.web.StaticFileHandler
        self.cycloneApp = cyclone.web.Application(handlers=[
            (r'/()', SFH,
             {'path': 'light9/effecteval', 'default_filename': 'index.html'}),
            (r'/effect', EffectEdit),
            (r'/(websocket\.js)', SFH, {'path': 'light9/rdfdb/web/'}),
            (r'/(knockout-2\.2\.1\.js)', SFH, {'path': 'light9/subserver/'}),
            (r'/effect\.js', StaticCoffee, {'src': 'light9/effecteval/effect.coffee'}),
            (r'/effectData', EffectData),
            (r'/static/(.*)', SFH, {'path': 'static/'}),
        ], debug=True, graph=self.graph)
        #graph.initiallySynced.addCallback(

        # see bin/subserver

class StaticCoffee(PrettyErrorHandler, cyclone.web.RequestHandler):
    def initialize(self, src):
        super(StaticCoffee, self).initialize()
        self.src = src
    def get(self):
        self.set_header('Content-Type', 'application/javascript')
        self.write(subprocess.check_output([
            '/usr/bin/coffee', '--compile', '--print', self.src]))

        
if __name__ == "__main__":
    parser = optparse.OptionParser()
    parser.add_option('--show',
        help='show URI, like http://light9.bigasterisk.com/show/dance2008',
                      default=showconfig.showUri())
    parser.add_option("-v", "--verbose", action="store_true",
                      help="logging.DEBUG")
    parser.add_option("--twistedlog", action="store_true",
                      help="twisted logging")
    (options, args) = parser.parse_args()

    log.setLevel(logging.DEBUG if options.verbose else logging.INFO)

    if not options.show:
        raise ValueError("missing --show http://...")
            
    app = App(URIRef(options.show))
    if options.twistedlog:
        from twisted.python import log as twlog
        twlog.startLogging(sys.stderr)
    reactor.listenTCP(networking.effectEval.port, app.cycloneApp)
    log.info("listening on %s" % networking.effectEval.port)
    reactor.run()