#!/usr/bin/env python

# new

import win32api
import win32con
import time
import os
import sys
import syncer
import samsung_phone.calendar
import win32.event
import win32.mainloop

def sync():
	cellphone_calendar_connection_1 = samsung_phone.calendar.Connection()
	try:
		return syncer.sync_items(cellphone_calendar_connection_1)
	finally:
		cellphone_calendar_connection_1.close()

def GUI_sync():
	import gui
	return gui.with_status_GUI(sync, lambda result : "sent %d appointments to the cell phone and received %d new appointments from it" % (len(result[0]), len(result[1])))
	
my_directory = os.path.dirname(sys.argv[0])

REG_NOTIFY_CHANGE_NAME = 1
REG_NOTIFY_CHANGE_ATTRIBUTES = 2

# last is "async?"

usb_key = win32api.RegOpenKey(win32con.HKEY_LOCAL_MACHINE, "SYSTEM\\CurrentControlSet\\Enum\\USB\\Vid_04e8&Pid_663f&Mi_03\\00000000_0_03\\Device Parameters")

port_value, port_type = win32api.RegQueryValueEx(usb_key, "PortName")

def registry_items(key):
	value_index = 0
	try:
		while True:
			entry_name, entry_value, entry_type = win32api.RegEnumValue(key, value_index)
			yield entry_name, entry_value, entry_type
			value_index = value_index + 1
	except: # pywintypes.error: 259 PyRegEnumValue "No more data is available"
		pass

if __name__ == "__main__":
	#port_value, port_type = win32api.RegQueryValueEx(comm_port_key, "PortName")
	#key = win32api.RegOpenKeyEx(win32con.HKEY_LOCAL_MACHINE, r"SYSTEM\\CurrentControlSet\\Enum\\USB")

	# REG_NOTIFY_CHANGE_LAST_SET timestamp

	comm_port_key = win32api.RegOpenKeyEx(win32con.HKEY_LOCAL_MACHINE, r"HARDWARE\DEVICEMAP\SERIALCOMM")

	previous_B_port_exists = False

	event_1 = win32.event.Event()
	win32api.RegNotifyChangeKeyValue(comm_port_key, False, 4, event_1.handle, True)
	
	while True:
		#print "selecting..."
		ready_item = win32.mainloop.select([event_1]) # TODO timeout? (FIXME: Windows Messages will not always be handled in time)
		if ready_item == win32.mainloop.windows_message_loop:
			#print "windows message received, pumping messages..."
			ready_item.pump_waiting_messages() # ???
			#print "done."
			continue

		# here, the registry changed.
		#print "registry key changed"

		B_port_exists = len([entry_name for entry_name, entry_value, entry_type in registry_items(comm_port_key) if entry_value == port_value]) > 0

		if B_port_exists and not previous_B_port_exists: # new device found.
			#print "found cell."
			# wait for cell connection to settle.
			time.sleep(1)

			#child_out, child_in = os.popen4("FIXME", "t")
			#child_out.close()

			# FIXME: child_in.read on demand()

			#child_image_name = os.path.join(my_directory, "push.pyw")
			#os.spawnv(os.P_WAIT, "python", ["python", child_image_name])
			GUI_sync()

		previous_B_port_exists = B_port_exists
		#print "reregistering"
		win32api.RegNotifyChangeKeyValue(comm_port_key, False, 4, event_1.handle, True)		
		#win32.mainloop.windows_message_loop.pump_waiting_messages() # doesn't help.

	# HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Enum\USB\Vid_04e8&Pid_663f&Mi_03\00000000_0_03\Device Parameters

	# HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Ports