# -*- coding: utf-8 -*-

"""
 *  Copyright (C) 2009, Michael "Svedrin" Ziegler <diese-addy@funzt-halt.net>
 *
 *  Mumble-Django is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This package is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
"""


import models
import dbus
from django.db.models import signals

def find_in_dicts( keys, conf, default, valueIfNotFound=None ):
	if not isinstance( keys, tuple ):
		keys = ( keys, );
	
	for keyword in keys:
		if keyword in conf:
			if isinstance( conf[keyword], dbus.String ):
				return unicode(conf[keyword]);
			elif isinstance( conf[keyword], dbus.Int32 ):
				return int(conf[keyword]);
			return conf[keyword];
	
	for keyword in keys:
		keyword = keyword.lower();
		if keyword in default:
			if isinstance( default[keyword], dbus.String ):
				return unicode(default[keyword]);
			elif isinstance( default[keyword], dbus.Int32 ):
				return int(default[keyword]);
			return default[keyword];
	
	return valueIfNotFound;


def find_existing_instances( **kwargs ):
	bus = dbus.SystemBus();
	
	if "verbosity" in kwargs:
		v = kwargs['verbosity'];
	else:
		v = 1;
	
	if v > 1:
		print "Starting Mumble servers and players detection now.";
	
	dbusName = 'net.sourceforge.mumble.murmur';
	online = False;
	while not online:
		try:
			murmur = dbus.Interface( bus.get_object( dbusName, '/' ), 'net.sourceforge.mumble.Meta' );
		except dbus.exceptions.DBusException:
			if v:
				print "Unable to connect to DBus using name %s. Is Murmur even running!?" % dbusName;
			dbusName = raw_input( "DBus Service name (or empty to skip Servers/Players detection): " );
			if not dbusName:
				if v:
					print 'Be sure to run "python manage.py syncdb" with Murmur running before trying to use this app! Otherwise, existing Murmur servers won\'t be configurable!';
				return False;
		else:
			online = True;
			if v > 1:
				print "Successfully connected to Murmur via DBus (%s)." % dbusName;
	
	default = murmur.getDefaultConf();
	
	servIDs   = murmur.getAllServers();
	bootedIDs = murmur.getBootedServers();
	
	for id in servIDs:
		if v > 1:
			print "Checking Murmur instance with id %d." % id;
		# first check that the server has not yet been inserted into the DB
		try:
			instance = models.Mumble.objects.get( srvid=id );
		except models.Mumble.DoesNotExist:
			conf   = murmur.getAllConf( dbus.Int32( id ) );
			
			servername = find_in_dicts( "registerName",                conf, default, "noname" );
			if not servername:
				# RegistrationName was found in the dicts, but is an empty string
				servername = "noname";
			
			values = {
				"name":    servername,
				"srvid":   id,
				"dbus":    dbusName,
				"addr":    find_in_dicts( ( "registerHostame", "host" ), conf, default, "0.0.0.0" ),
				"port":    find_in_dicts( "port",                        conf, default ),
				"url":     find_in_dicts( "registerUrl",                 conf, default ),
				"motd":    find_in_dicts( "welcometext",                 conf, default ),
				"passwd":  find_in_dicts( "password",                    conf, default ),
				"supw":    '',
				"users":   find_in_dicts( "users",                       conf, default ),
				"bwidth":  find_in_dicts( "bandwidth",                   conf, default ),
				"sslcrt":  find_in_dicts( "certificate",                 conf, default ),
				"sslkey":  find_in_dicts( "key",                         conf, default ),
				"booted":  ( id in bootedIDs ),
				}
			
			if values['addr'].find( ':' ) != -1:
				# The addr is a hostname which actually contains a port number, but we already got that from
				# the port field, so we can simply drop it.
				values['addr'] = values['addr'].split(':')[0];
			
			if v:
				print 'Found new Murmur "%s" running on %s:%s.' % ( values['name'], values['addr'], values['port'] );
			
			# now create a model for the record set.
			instance = models.Mumble( **values );
			instance.save( dontConfigureMurmur=True );
		else:
			if v > 1:
				print "This instance is already listed in the database.";
		
		# Now search for players on this server that have not yet been registered
		if v > 1:
			print "Looking for registered Players on Server id %d." % id;
		if id in bootedIDs:
			murmurinstance = dbus.Interface(
				bus.get_object( 'net.sourceforge.mumble.murmur', '/%d'%id ),
				'net.sourceforge.mumble.Murmur'
				);
			
			players = murmurinstance.getRegisteredPlayers('');
			
			for playerdata in players:
				if playerdata[0] == 0:
					continue;
				if v > 1:
					print "Checking Player with id %d and name '%s'." % playerdata[:2];
				try:
					models.MumbleUser.objects.get( server=instance, mumbleid=playerdata[0] );
				except models.MumbleUser.DoesNotExist:
					if v:
						print 'Found new Player "%s".' % playerdata[1];
					playerinstance = models.MumbleUser(
						mumbleid = playerdata[0],
						name     = playerdata[1],
						password = '',
						server   = instance,
						owner    = None
						);
					playerinstance.isAdmin = playerinstance.getAdmin();
					playerinstance.save( dontConfigureMurmur=True );
				else:
					if v > 1:
						print "This player is already listed in the database.";
	
	if v > 1:
		print "Successfully finished Servers and Players detection.";
	return True;


signals.post_syncdb.connect( find_existing_instances, sender=models );