#!/usr/bin/python2

import sys
import time
from time import sleep
import util
import it6803

usage = """\
Usage:
  cec_service               -- print command usage
  cec_service start         -- run cec service
"""

powerOn = True

def main(cmdline):
    args = [''] * 4
    for i, x in enumerate(cmdline):
        args[i] = x
    cmd = args[1]

    if cmd == '': cmd = 'help'
    fname = 'cmd_' + cmd

    if fname in globals():
        if args[2] == '':
            globals()[fname]()
        else:
            globals()[fname](args[2])
    else:
        print 'Unknown command', cmd

def cmd_start():
    it6803.cec_open()
    it6803.cec_init()
    while True:
        code = it6803.cec_msg_receive()
        if code is not None:
            if code == 0x36:
                handle_standBy()
            elif code == 0x04:
                handle_imageOn()
            elif code == 0x8F:
                handle_powerStatus()
            else:
                print 'Unknow command'
    it6803.cec_close()
    return

def handle_standBy():
    global powerOn
    powerOn = False
    return

def handle_imageOn():
    global powerOn
    powerOn = True
    return

def handle_powerStatus():
    global powerOn
    print 'power status: {}'.format(powerOn)
    if powerOn:
        it6803.cec_msg_poweron()
    else:
        it6803.cec_msg_poweroff()
    it6803.cec_transmit()
    return


if __name__ == '__main__':
    main(sys.argv)