#!/usr/bin/python

import sys
import traceback

# Used to get methods and stuff
import dbus
from time import sleep
from xml.etree import ElementTree

priorityPhone="dev_DC_74_A8_ED_40_43"

controller="hci0"

print "Auto connect started! Setting up bus"
bus=dbus.SystemBus()

def getDevices(bus):
    devices=[]
    obj = bus.get_object('org.bluez', '/org/bluez/'+controller)
    iface = dbus.Interface(obj, 'org.freedesktop.DBus.Introspectable')
    xml_string = iface.Introspect()
    for child in ElementTree.fromstring(xml_string):
        if child.tag == 'node' and child.attrib['name'] != priorityPhone:
            devices.append(child.attrib['name'])
    return devices

def getDevice(bus):
    obj = bus.get_object('org.bluez', '/org/bluez/'+controller)
    iface = dbus.Interface(obj, 'org.freedesktop.DBus.Introspectable')
    xml_string = iface.Introspect()
    for child in ElementTree.fromstring(xml_string):
        if child.tag == 'node':
            return child.attrib['name']
def getPlayer(bus, device):
    obj = bus.get_object('org.bluez', '/org/bluez/'+controller+'/'+device)
    iface = dbus.Interface(obj, 'org.freedesktop.DBus.Introspectable')
    xml_string = iface.Introspect()
    for child in ElementTree.fromstring(xml_string):
        if child.tag == 'node':
             if child.attrib['name'].startswith("player"):
                  return child.attrib['name']


print "Scanning for devices on controller: " + controller
devices=getDevices(bus)
print(devices)
if not devices:
    print 'No connected devices'
else:
    connectedToDevice=False
    for device in devices:
        deviceObj = bus.get_object('org.bluez', '/org/bluez/'+controller+'/'+device)
        print device
        deviceInterface = dbus.Interface(deviceObj, 'org.bluez.Device1')
        devInt = dbus.Interface(deviceObj, dbus_interface='org.freedesktop.DBus.Properties') # I use this to get properties (I don't know another way)
        mcAll = devInt.GetAll('org.bluez.Device1')
        if mcAll["Connected"]==True:
            print("Already connected to device: " + device)
            connectedToDevice=True

    if connectedToDevice==False:
        print "Connecting to devices"
        for device in devices:
            if not device:
                print 'No such device'
            else:
                print "Attempting to connect to " + device
                deviceObj = bus.get_object('org.bluez', '/org/bluez/'+controller+'/'+device)
                deviceInterface = dbus.Interface(deviceObj, 'org.bluez.Device1')
                devInt = dbus.Interface(deviceObj, dbus_interface='org.freedesktop.DBus.Properties') # I use this to get properties (I don't know another way)

                try:
                    deviceInterface.Connect()
                    print "Connected to device " + device

                    sleep(2)

                    bus=dbus.SystemBus()

                    player=getPlayer(bus, device)
                    if not player:
                        print 'No player could be found for device ' + device

                    print 'Player path: /org/bluez/'+controller+'/'+device+'/'+player
                    print "Connecting to player and sending play commend"

                    deviceObj = bus.get_object('org.bluez', '/org/bluez/'+controller+'/'+device+'/'+player)
                    deviceInterface = dbus.Interface(deviceObj, 'org.bluez.MediaPlayer1')
                    deviceInterface.Play()

                    print "Play command sent!"
                    break

                except Exception, e:
                    print(str(traceback.format_exc()))
                    print("Failed! Error: " + str(e))

print "Auto connect complete."