main.py

import sys
import os
import importlib.util
import tkinter as tk
from tkinter import messagebox
from tkinter.ttk import Style
from ttkbootstrap import Style

from main_gui import MainGui

def load_plugin(plugin_name):
    script_dir=os.path.dirname(os.path.abspath(__file__))
    plugin_path = os.path.join(script_dir,f"{plugin_name}.py")
    if not os.path.exists(plugin_path):
        raise FileNotFoundError(f"Plugin {plugin_name} not found under {script_dir}")
    spec = importlib.util.spec_from_file_location(plugin_name,plugin_path)
    module = importlib.util.module_from_spec(spec)
    spec.loader.exec_module(module)
    if hasattr(module,"PowerSupply"):
        return module.PowerSupply
    else:
        raise AttributeError(f"Plugin '{plugin_name}' does not contain a 'PowerSupply' class")

def main():
    if len(sys.argv) < 2:
        tk.Tk().withdraw()
        messagebox.showerror("Missing Plugin", "Please specify a plugin name as command line argument.")
        sys.exit(1)

    plugin_name = sys.argv[1]

    try:
        plugin_class = load_plugin(plugin_name)
    except Exception as e:
        tk.Tk().withdraw() #Just to start without window for message box
        messagebox.showerror("Plugin Load Error", str(e))
        sys.exit(1)

    root = tk.Tk()

    # GUI-Design mit ttkbootstrap

    style = Style(theme='darkly')
    root = style.master
    root.title("Power Supply Control")
    try:
        root.iconbitmap('psu.ico')
    except:
        print("psu.ico not found")
        pass

    app = MainGui(root, plugin_class)
    #root.protocol("WM_DELETE_WINDOW", app.on_close())
    root.mainloop()


if __name__ == "__main__":
    main()