from atexit import register
from sys import argv
from threading import Thread

from cheat import Cheat, sleep  # type: ignore


def do_on_exit(cheats: Cheat, running: list) -> None:
    """Called when the program end"""
    for fn in running:
        try:
            unloader = getattr(cheats, f"{fn}_unload")
        except:
            pass
        else:
            print(f"Unload {fn}...")
            unloader()


if __name__ == "__main__":
    c_id = []
    args = {}
    wanted_list = []

    if len(argv) > 1:
        # User wanna use offline offsets
        if "--offline" in argv:
            args["offline"] = True

        # User gave a list of cheats
        # Will bypass the interactive selection
        wanted_list = [
            j for j in [i for i in argv if i.startswith("--list=")][0][7:].split(",")
        ]

    # Load cheat class
    c = Cheat(**args)

    # Load user list
    c_id = [c.cheats_list.index(cheat) for cheat in wanted_list]

    # Interactive selection
    if c_id == []:
        # Cheat list
        print(
            "You can run multiples cheat at once, separate your choices with a space."
        )
        print("Available cheats:")
        for idx, cheat in enumerate(c.cheats_list):
            print(f"#{idx + 1} - {cheat}")

        while c_id == []:
            try:
                response = [int(i) for i in input("Enter ID: ").split(" ")]
                for i in response:
                    if i > len(c.cheats_list) or i <= 0:
                        raise IndexError
                    c_id.append(i - 1)
            except KeyboardInterrupt:
                print("Bye")
                exit(1)
            except:  # noqa: E722
                c_id = []
                print("Invalid ID.")

    # Instanciate and run threads
    running = []
    for fn in [c.cheats_list[i] for i in c_id]:
        # Set of incompatible cheat with fn
        incompatible = set(c.incompatible[fn]).intersection(running)

        if not len(incompatible):
            running.append(fn)
            print(f"Running {fn}...")
            t = Thread(target=getattr(c, fn))
            t.daemon = True
            t.start()
        else:
            print(f"{fn} is incompatible with: {', '.join(incompatible)}")

    register(do_on_exit, c, running)

    # Don't close the main thread as cheats are daemons
    while True:
        sleep(1000000)