# -*- coding: utf-8 -*-
import sys
import os
import threading
import time
import OpenOPC

#import for library
from lackey import *
from Tkinter import *

#Variable

watch_dog = 0
firstBarcode = "112345678"
secondcode = "12345678"
#
#OPC Control
#
opc = OpenOPC.client()
#check all avalible OPC server
opcservers= opc.servers()
print opcservers
#check all avalible tag for Kepware OPC server
opc.list()
# open connection to Server
opc.connect('Kepware.KEPServerEX.V6')
#read value from server
print opc['Simulation Examples.Test.RR01']
opc.close()
# Check OPC rutine
def Check_OPC():
  opc.connect('Kepware.KEPServerEX.V6')
  print opc['Simulation Examples.Test.RR01']
  opc.close()

# Check Logo rutine
def Check_Logo():
 if exists(Pattern("images/logo.png").similar(0.65)):
 # Check Logo for Watch Dog
    print ("Logo is oK")
    global watch_dog
    watch_dog = 1
 else:
    global watch_dog
    watch_dog = 0
    print ("EP is Offline")

#

# Watch Dog
class WatchDog(object):
    """ Watch dog example class
    The run() method will be started and it will run in the background
    until the application exits.
    """

    def __init__(self, beat, interval=1 ):
        """ Constructor
        :type interval: int
        :param interval: Check interval, in seconds
        :   time.sleep(self.interval)
        """
        self.watch_dog = beat
        self.interval = interval

        thread = threading.Thread(target=self.run, args=())
        thread.daemon = True                            # Daemonize thread
        thread.start()                                  # Start the execution


    def run(self):
        #  Method that runs forever
        while True:
            wait(2)
            Check_OPC()
            wait(2)
            Check_Logo()


# Functions

# Main rutine
def main_loop():
 while exists("images/logo.png", 10):

   click(Pattern("images/product.png").similar(0.95))
   click(Pattern("images/Vrijgeven.png").similar(0.95))

   print watch_dog
   click("images/Print.png")
   click(Pattern("images/yellow_input.png").exact())
   type(firstBarcode)
   ask_loop()
#
# Exit rutine

def exit_program():
 exitmsges = tkMessageBox.showinfo("Ariana","Thank you for use.")
 print exitmsges
 wait(1)
 sys.exit()
#
# start window rutine
def ask_loop():
  startmsges = tkMessageBox.askyesno("Ariana","Do you want to start?")
  print startmsges
  answer = startmsges
  # If you want start or continue then ...
  if startmsges == True:

   print "Start"
   main_loop()

  # If you want finish
  if startmsges == False:

   exit_program()


# OPC server status check
def opc_status():
    opc.connect('Kepware.KEPServerEX.V6')
    print opc.list()
    print "\n"
    print opc.info()
    print "\n"
    print watch_dog
    opc.close()

#
#Program start
#
Control = WatchDog(WatchDog)

# HERE START GUI
hlavni = Tk()
hlavni.title("Ariana 0.1")
hlavni.resizable(width=False, height=False)
hlavni.minsize(200, 250)
hlavni.maxsize(200, 250)

nabidka = Menu(hlavni)
hlavni.config(menu=nabidka)

Label(hlavni, text="Ariana Online",
      fg="black",
      font="Verdana 10 bold").pack()
if watch_dog == 0:
 Label(hlavni, text="EP Offline",
       fg="white", bg="red",
       font="Verdana 10 bold").pack()
if watch_dog == 1:
 Label(hlavni, text="EP Online",
       fg="white", bg="green",
       font="Verdana 10 bold").pack()


menuSoubor = Menu(nabidka)
nabidka.add_cascade(label="Control", menu=menuSoubor)
menuSoubor.add_command(label=u"Start", command=ask_loop)
menuSoubor.add_command(label=u"Status", command=opc_status)

menuSoubor.add_separator()
menuSoubor.add_command(label="Exit", command=exit_program)



mainloop()