#!/usr/bin/python3

import argparse
from pathlib import Path


class UI:
    def __init__(self, gamedir: str, noconfirm: bool) -> None:
        self._noconfirm = noconfirm
        self._gamedir = gamedir

    def _ask(self, title, description):
        raise NotImplementedError()

    def install_game(self):
        # TODO
        raise NotImplementedError("Install game is not implemented.")

    def update_game(self):
        print("Checking for current game version...")
        # Call check_game_version()
        print("Updating game...")
        # Call update_game(fromver)
        raise NotImplementedError("Update game is not implemented.")

    def interactive_ui(self):
        raise NotImplementedError()


def main():
    parser = argparse.ArgumentParser(prog="worthless", description="A worthless launcher written in Python.")
    parser.add_argument("-D", "-d", "--dir", action="store", type=Path, default=Path.cwd(),
                        help="Specify the game directory (default current working directory)")
    parser.add_argument("-S", "--install", action="store_true",
                        help="Install the game (if not already installed, else do nothing)")
    parser.add_argument("-U", "--install-from-file", action="store_true",
                        help="Install the game from the game archive (if not already installed, \
                        else update from archive)")
    parser.add_argument("-Sp", "--patch", action="store_true",
                        help="Patch the game (if not already patched, else do nothing)")
    parser.add_argument("-Sy", "--update", action="store_true",
                        help="Update the game and specified voiceover pack only (or install if not found)")
    parser.add_argument("-Syu", "--update", action="store_true",
                        help="Update the game and all installed voiceover packs (or install if not found)")
    parser.add_argument("-Rs", "--remove", action="store_true", help="Remove the game (if installed)")
    parser.add_argument("-Rp", "--remove-patch", action="store_true", help="Revert the game patch (if patched)")
    parser.add_argument("-Rv", "--remove-voiceover", action="store_true", help="Remove a Voiceover pack (if installed)")
    parser.add_argument("--noconfirm", action="store_true",
                        help="Do not ask any for confirmation. (Ignored in interactive mode)")
    args = parser.parse_args()
    interactive_mode = not args.install and not args.install_from_file and not args.patch and not args.update and not \
        args.remove and not args.remove_patch and not args.remove_voiceover
    ui = UI(args.dir, args.noconfirm)

    if args.install and args.update:
        raise ValueError("Cannot specify both --install and --update arguments.")

    if args.install:
        ui.install_game()

    if args.update:
        ui.update_game()
        return

    if interactive_mode:
        ui.interactive_ui()


if __name__ == "__main__":
    main()