#
# Copyright (C) 2021 Soleta Networks <info@soleta.eu>
#
# This program is free software: you can redistribute it and/or modify it under
# the terms of the GNU Affero General Public License as published by the
# Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.

import os
import ctypes
import subprocess
from subprocess import CalledProcessError
import multiprocessing as mp
from multiprocessing import Process, freeze_support

from PIL import Image, ImageDraw
from pystray import Icon, Menu, MenuItem

from src.ogRest import ThreadState


def _create_default_image():
    """
    Creates a default image for the tray icon. Use in case
    no favicon.ico is found.
    """
    width = height = 250
    color1 = (255, 255, 255)
    color2 = (255, 0, 255)

    image = Image.new('RGB', (width, height), color1)
    dc = ImageDraw.Draw(image)
    dc.rectangle(
        (width // 2, 0, width, height // 2),
        fill=color2)
    dc.rectangle(
        (0, height // 2, width // 2, height),
        fill=color2)

    return image


def create_image():
    try:
        image = Image.open(r'./favicon.ico')
        image = Image.composite(image, Image.new('RGB', image.size, 'white'), image)
    except:
        image = _create_default_image()
    return image


def create_systray():
    menu = Menu(MenuItem('Powered by Soleta Networks!',
                         lambda icon, item: 1))
    icon = Icon('ogClient', create_image(), menu=menu)
    assert icon.icon
    icon.run()


systray_p = Process(target=create_systray)


class OgWindowsOperations:

    def __init__(self):
        freeze_support()
        mp.set_start_method('spawn')
        systray_p.start()

    def _restartBrowser(self, url):
        raise NotImplementedError

    def poweroff(self):
        systray_p.terminate()
        os.system('shutdown -s -t 0')

    def reboot(self):
        systray_p.terminate()
        os.system('shutdown -r -t 0')

    def shellrun(self, request, ogRest):
        cmd = request.getrun()
        try:
            result = subprocess.run(cmd,
                                    shell=True,
                                    stdin=subprocess.DEVNULL,
                                    capture_output=True,
                                    text=True,
                                    check=True)
        except CalledProcessError as error:
            if error.stderr:
                return error.stderr
            if error.stdout:
                return error.stdout
            return "{Non zero exit code and empty output}"
        return (result.returncode, cmd, result.stdout)

    def session(self, request, ogRest):
        raise NotImplementedError

    def hardware(self, path, ogRest):
        raise NotImplementedError

    def setup(self, request, ogRest):
        raise NotImplementedError

    def image_restore(self, request, ogRest):
        raise NotImplementedError

    def image_create(self, path, request, ogRest):
        raise NotImplementedError

    def cache_delete(self, request, ogRest):
        raise NotImplementedError

    def refresh(self, ogRest):
        return {"status": "WIN"}

    def probe(self, ogRest):
        return {'status': 'WIN' if ogRest.state != ThreadState.BUSY else 'BSY'}