import tkinter as tk
import socket
import sys

PORT = 65432


def check_if_already_running():
    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    try:
        sock.bind(("127.0.0.1", PORT))
    except OSError:
        print("Already running.")
        sys.exit(0)
    return sock


def exit_app(event=None):
    root.destroy()


def bind_input_events():
    root.bind("<Motion>", exit_app)
    root.bind("<Key>", exit_app)
    root.bind("<Button>", exit_app)


lock_socket = check_if_already_running()

root = tk.Tk()
root.title("BlackScreenApp")  # Needed for wmctrl or hyprctl targeting
root.configure(background="black")
root.attributes("-fullscreen", True)  # Try fullscreen directly
root.config(cursor="none")

root.after(500, bind_input_events)
root.mainloop()

lock_socket.close()