import xbmc, transmissionrpc

class MyPlayer(xbmc.Player):
    def __init__(self):
        xbmc.Player.__init__(self)
        self.active = True
        self.tc = TransmissionController()

    def onPlayBackStarted(self):
        if self.active and xbmc.Player().isPlayingVideo():
            xbmc.executebuiltin("Notification(Torrent Suspender, Stopped {0} torrents)".format(self.tc.torrentstatus("downloading")))
            self.tc.stopalltorrents()

    def onPlayBackStopped(self):
        if self.active:
            xbmc.executebuiltin("Notification(Torrent Suspender, Resumed {0} torrents)".format(self.tc.torrentstatus("stopped")))
            self.tc.startalltorrents()

class TransmissionController():
    def __init__(self):
        self.client = transmissionrpc.Client("localhost", 9091, "xbian", "raspberry")

    def torrentstatus(self, status):
        torrents = self.client.list()
        if len(torrents) > 0:
            i = 0
            for tid, torrent in torrents.iteritems():
                if torrent.status == status:
                    i += 1

            return i

    def startalltorrents(self):
        if self.torrentstatus("stopped") > 0:
            torrents = self.client.list()
            for tid, torrent in torrents.iteritems():
                self.client.start(tid)

    def stopalltorrents(self):
        if self.torrentstatus("downloading") > 0:
            torrents = self.client.list()
            for tid, torrent in torrents.iteritems():
                self.client.stop(tid)

player = MyPlayer()

while player.active:
    xbmc.sleep(5000);