#!/usr/bin/python2
import logging
from argparse import ArgumentParser

from sleekxmpp.componentxmpp import ComponentXMPP
from sleekxmpp.xmlstream.xmlstream import XMLStream

from user import UserHandler
from config import filename, config

class ObjectComponent(ComponentXMPP):

    def __init__(self, jid, secret, server, port, root):
        ComponentXMPP.__init__(self, jid, secret, server, port)
        self.register_plugin('xep_0030')
        self.register_plugin("AliasPlugin", module = "plugin")
        self.add_event_handler("session_start", self.start)
        self.add_event_handler("presence_probe", self.presence_probe)
        self.add_event_handler("message", self.message)
        self.add_event_handler("changed_subscription", self.presence_subscription)
        self.userHandler = UserHandler(root)

    def start(self, event):
        for user in self.userHandler.get_user_list():
            self.send_presence(pto = user)

    def disconnect(self, reconnect = False):
        for user in self.userHandler.get_user_list():
            self.send_presence(pto = user, ptype = "unavailable")
        XMLStream.disconnect(self, reconnect)
        logging.info('Component {} disconnected'.format(self.boundjid.bare))

    def message(self, msg):
        msg.reply("Thanks for sending\n{[body]}".format(msg)).send()

    def presence_subscription(self, subscription):
        if subscription["type"] == "subscribe":
            userJID = subscription["from"].full
            if not self.userHandler.registered(userJID):
                self.userHandler.register(userJID)
            subscription.reply().send()
            self.send_presence(pto = userJID)
            self.send_presence_subscription(pto = userJID, ptype = "subscribe")
        if subscription["type"] == "unsubscribe":
            userJID = subscription["from"].full
            if self.userHandler.registered(userJID):
                self.userHandler.unregister(userJID)

    def presence_probe(self, event):
        self.send_presence(pto = event["from"].full)


if __name__ == '__main__':
    commandline = ArgumentParser(description = 'Connect the alias \
                                component to a given server')
    commandline.add_argument('-p', '--port',
                             help = 'Port to connect to',
                             type = int)
    commandline.add_argument('-s', '--secret',
                             help = 'password')
    commandline.add_argument('-n', '--name',
                             help = 'Name the component will have')
    commandline.add_argument('-r', '--root',
                             help = 'Root directory of the user files')
    commandline.add_argument('-c', '--config',
                             help = 'Name of the config file to use')
    commandline.add_argument('-d', '--debug',
                             help = 'Set log level to DEBUG',
                             action = 'store_const',
                             const = logging.DEBUG,
                             default = logging.INFO)
    commandline.add_argument('-o', '--host',
                             help = 'Host to connect to')

    args = commandline.parse_args()

    if args.config is None:
        logging.basicConfig(level = args.debug)
        config.name = args.name
        config.port = args.port
        config.secret = args.secret
        config.root = args.root
        config.host = args.host
    else:
        filename = args.config
        logging.basicConfig(level = args.debug)
        config.read(filename)

    component = ObjectComponent(config.name, config.secret,
                                config.host, config.port,
                                config.root)

    if component.connect():
        logging.info('Component {} connected'.format(component.boundjid))
        component.process(False)
    else :
        print "Couldn't connect"