presik_pos/pospro

#!/usr/bin/env python3
# -*- coding: UTF-8 -*-
import os
import sys
import argparse
import setproctitle
import psutil
import ctypes
from PySide6.QtCore import Qt, QCoreApplication
from PySide6.QtWidgets import QApplication, QMessageBox
# from PyQt5.QtWidgets import QApplication
from app.commons.dblogin import Login
from app import main
from logger_config import logger

parser = argparse.ArgumentParser(description='Process some integers.')
parser.add_argument('-o', metavar="theme", help='execute argument')
args = parser.parse_args()

try:
    DIR = os.path.abspath(os.path.normpath(os.path.join(__file__,
                                                        '..', '..', '..')))
    if os.path.isdir(DIR):
        sys.path.insert(0, os.path.dirname(DIR))
except NameError:
    pass

PROCESS_NAME = "app_presik_pos"
OS_NAME = os.name


class SingleInstanceApp(QApplication):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)

        app_open = False
        num_opens = 0
        for process in psutil.process_iter(['pid', 'name', 'cmdline']):
            name = process.info['name']
            cmdline = process.info['cmdline']
            if name == PROCESS_NAME and OS_NAME == 'posix':
                app_open = True
            elif OS_NAME == 'nt' and isinstance(cmdline, list) and 'pospro' in cmdline):
                num_opens += 1

        if app_open or num_opens > 1:
            logger.error('La aplicación ya esta en ejecución')
            self.show_already_running_dialog()
            sys.exit(1)


    def show_already_running_dialog(self):
        msg = QMessageBox()
        msg.setIcon(QMessageBox.Warning)
        msg.setText("La aplicación ya está en ejecución.")
        msg.setWindowTitle("Aplicación en ejecución")
        msg.setStandardButtons(QMessageBox.Ok)
        msg.exec()


class Client(object):

    def __init__(self, parent=None):
        # self.app = QApplication(sys.argv)
        self.app = SingleInstanceApp(sys.argv)
        self.app.setOrganizationName("PRESIK SAS")
        self.app.setOrganizationDomain("presik.com")
        self.app.setApplicationName("SMART POS")
        self.app.setStyle("fusion")
        if OS_NAME == 'posix':
            setproctitle.setproctitle(PROCESS_NAME)
        elif OS_NAME == 'nt':
            kernel32 = ctypes.windll.kernel32
            kernel32.SetConsoleTitleW(PROCESS_NAME)

    def init_login(self):
        _file_config = 'config_pos.ini'
        if args.o:
            _file_config = args.o
        login = Login(file_config=_file_config)
        while not login.context:
            login.run()
            login.exec()
        login.timer.stop()
        return login.context, login.params

    def main(self, context, params):
        _ = main.AppWindow(context, params)
        self.app.exec()


client = Client()
context, params = client.init_login()

if context:
    client.main(context, params)
sys.exit()