import logging
import os
import sys
from shutil import copyfile

import dcs
from PySide2 import QtWidgets
from PySide2.QtGui import QPixmap
from PySide2.QtWidgets import QApplication, QSplashScreen
from dcs import installation

from qt_ui import uiconstants
from qt_ui.windows.GameUpdateSignal import GameUpdateSignal
from qt_ui.windows.QLiberationWindow import QLiberationWindow
from qt_ui.windows.preferences.QLiberationFirstStartWindow import QLiberationFirstStartWindow
from userdata import persistency, logging as logging_module, liberation_install

if __name__ == "__main__":

    app = QApplication(sys.argv)

    css = ""
    with open("./resources/stylesheets/style.css") as stylesheet:
        app.setStyleSheet(stylesheet.read())

    # Logging setup
    VERSION_STRING = "2.0RC6"
    logging_module.setup_version_string(VERSION_STRING)

    # Inject custom payload in pydcs framework
    custom_payloads = os.path.join(os.path.dirname(os.path.realpath(__file__)), "..\\resources\\customized_payloads")
    if os.path.exists(custom_payloads):
        dcs.planes.FlyingType.payload_dirs.append(custom_payloads)
    else:
        # For release version the path is different.
        custom_payloads = os.path.join(os.path.dirname(os.path.realpath(__file__)),
                                       "resources\\customized_payloads")
        if os.path.exists(custom_payloads):
            dcs.planes.FlyingType.payload_dirs.append(custom_payloads)


    first_start = liberation_install.init()
    if first_start:
        window = QLiberationFirstStartWindow()
        window.exec_()

    logging.info("Using {} as 'Saved Game Folder'".format(persistency.base_path()))
    logging.info("Using {} as 'DCS installation folder'".format(liberation_install.get_dcs_install_directory()))

    # Splash screen setup
    pixmap = QPixmap("./resources/ui/splash_screen.png")
    splash = QSplashScreen(pixmap)
    splash.show()

    # Once splash screen is up : load resources & setup stuff
    uiconstants.load_icons()
    uiconstants.load_event_icons()
    uiconstants.load_aircraft_icons()
    uiconstants.load_vehicle_icons()

    # Replace DCS Mission scripting file to allow DCS Liberation to work
    try:
        liberation_install.replace_mission_scripting_file()
    except:
        error_dialog = QtWidgets.QErrorMessage()
        error_dialog.setWindowTitle("Wrong DCS installation directory.")
        error_dialog.showMessage("Unable to modify Mission Scripting file. Possible issues with rights. Try running as admin, or please perform the modification of the MissionScripting file manually.")
        error_dialog.exec_()

    # Apply CSS (need works)
    GameUpdateSignal()

    # Start window
    window = QLiberationWindow()
    window.showMaximized()
    splash.finish(window)
    qt_execution_code = app.exec_()

    # Restore Mission Scripting file
    logging.info("QT App terminated with status code : " + str(qt_execution_code))
    logging.info("Attempt to restore original mission scripting file")
    liberation_install.restore_original_mission_scripting()
    sys.exit(qt_execution_code)