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from bluetool import Bluetooth
import bluetooth
import sys
from gi.repository import GObject
import dbus
import dbus.service
import dbus.mainloop.glib
from optparse import OptionParser

BUS_NAME = 'org.bluez'
AGENT_INTERFACE = 'org.bluez.Agent1'
AGENT_PATH = "/test/agent"

bus = None
device_obj = None
dev_path = None

bd_addr = "12:34:56:78:90:AB"
bd_pin = "1234"

class Rejected(dbus.DBusException):
    _dbus_error_name = "org.bluez.Error.Rejected"

class Agent(dbus.service.Object):
    pin = "1234"

    def setPin(self, pin):
        self.pin = pin

    @dbus.service.method(AGENT_INTERFACE, in_signature="", out_signature="")
    def Release(self):
        print("Release")
        mainloop.quit()

    @dbus.service.method(AGENT_INTERFACE, in_signature="o", out_signature="s")
    def RequestPinCode(self, device):
        print("RequestPinCode (%s)" % (device))
        return(self.pin)
        
        
if __name__ == '__main__':
    bt = Bluetooth()

    devices = bt.get_paired_devices()
    print(devices)

    bd_addrb = bytes(bd_addr, 'utf-8')
    if(next((item for item in devices if item["mac_address"] == bd_addrb), False)):
        print("paired")
        port = 1

        sock = bluetooth.BluetoothSocket(bluetooth.RFCOMM)
        sock.bind(("", port))
        try:
            sock.connect((bd_addr, port))
            sock.send("hello!!")
            sock.close()
        except(bluetooth.BluetoothError):
            print("bt-error")
        except:
            print("Fehler")
    else:
        print("not paired")

        dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
        
        bus = dbus.SystemBus()
        path = "/test/agent"
        agent = Agent(bus, path)

        agent.setPin(bd_pin)

        obj = bus.get_object(BUS_NAME, "/org/bluez");
        manager = dbus.Interface(obj, "org.bluez.AgentManager1")
        manager.RegisterAgent(path, "KeyboardDisplay")

        print("Agent registered")

        port = 1
        sock = bluetooth.BluetoothSocket(bluetooth.RFCOMM)
        sock.bind(("", port))
        try:
            sock.connect((bd_addr, port))
            sock.send("hello!!")
            sock.close()
        except(bluetooth.BluetoothError):
            print("bt-error")
        except:
            print("Fehler")
        manager.RequestDefaultAgent(path)