from User_Interface import HelmholtzGUI
import cage_func as func
import traceback
import globals as g
from os.path import exists

try:  # start normal operations

    g.CONFIG_FILE = 'config.ini'
    # ToDo: remember what the last config file was
    if not exists(g.CONFIG_FILE):
        print("Config file not found, creating new from defaults.")
        func.reset_config_to_default(g.CONFIG_FILE)
        func.write_config_to_file(g.CONFIG_OBJECT)

    g.CONFIG_OBJECT = func.get_config_from_file(g.CONFIG_FILE)
    print(g.CONFIG_OBJECT)

    print("Starting setup...")
    func.setup_all()  # initiate communication, set handles

    print("\nOpening User Interface...")

    g.app = HelmholtzGUI()
    func.ui_print("Program Initialized")
    func.check_config(g.CONFIG_OBJECT)  # check config for values exceeding limits

    func.ui_print("\nStarting setup...")  # do it again, so it is printed in the UI console ToDo: do it only once
    func.setup_all()  # initiate communication, set handles
    g.app.mainloop()
    g.app = None  # reset to None so nothing tries to print in the UI output


except BaseException as e:  # if there is an error, print what happened
    print("\nAn error occurred, Shutting down.")
    print(e)
    print(traceback.print_exc())

finally:  # safely shut everything down at the end
    func.shut_down_all()

# ToDo: logging