#!/usr/bin/python3

title = "Komunikat LinuxCNC"
fontsize = 15

import sys
import os
import configparser
import tkinter as tk

MessageFilePath = __file__ + "messages.ini"

proceed = "Y"

if not os.path.isfile(MessageFilePath):
    instruction = MessageFilePath + " does not exist"
    proceed = "N"
else:

    if len(sys.argv) == 1:
        instruction = "M100 was called with no P value"
        proceed = "N"
    else:
        P = sys.argv[1]

        if len(P) < 7:
            ps = P
        else:
            ps = P[0:len(P) - 7]

        cfg = configparser.ConfigParser()

        try:
            cfg.read(MessageFilePath)
            instruction = cfg.get("Messages", ps)
            instruction = instruction.encode("unicode_escape").decode()
        except configparser.MissingSectionHeaderError:
            proceed = "N"
            instruction = "First line of\n" + MessageFilePath + "\nmust be:\n[Messages]"
        except (configparser.MissingSectionHeaderError, configparser.NoOptionError):
            proceed = "N"
            instruction = "There is no message for number\n" + P + "\n in the file\n" + MessageFilePath

if instruction == "":
    instruction = "The message for P" + P + " is blank"
    proceed = "N"

mess = os.linesep + instruction.replace("\n", os.linesep) + os.linesep

window = tk.Tk()

window.title(title)
window.geometry("300x200")

msg = tk.Message(window, text=mess, width=1000)
msg.config(fg="Black", font=("times", fontsize, "bold"))


def close(event):
    exit(1)


window.bind("<Escape>", close)

if proceed == "Y":
    def go_on(event):
        exit(0)


    window.bind("<Return>", go_on)


    def Continue_clicked():
        exit(0)


    btnContinue = tk.Button(window, text="Kontynuuj", command=Continue_clicked, width=60, height=1,
                            font=("Helvetica", "20"))
    btnContinue.configure(bg="gray")


def Stop_clicked():
    exit(1)


msg.pack()

if proceed == "Y":
    btnContinue.pack()

window.mainloop()