"""
    This module enables a user to host a server that is able to play games.
"""

from __future__ import annotations

import random

from pyserver import PyServer
from typing import Any

def main() -> int:
    """
        Start a server.

        :return: Exit code
        :rtype: int
    """
    player = PyServer(
        # Customize this to whatever you'd like to call your player
        name="My super smart robot player",

        # Custom information that you can use to tell people about this player
        profile={},

        # Unless you know what you're doing, don't touch this.
        import_name=__name__,
    )

    # Register games! Comment out any you don't want your player to play.
    player.add_tic_tac_toe(on_move=play_tic_tac_toe, profile={})

    # Start listening for games
    player.start(
        host="0.0.0.0", # Comment out when using only locally
        port=5000,
    )

    return 0

def play_tic_tac_toe(payload : dict[str, Any]) -> dict[str, Any]:
    """
        Play a game of tic-tac-toe.

        You receive a payload that looks like this:

        {
            "1": "X", "2": "",  "3": "O",
            "4": "X", "5": "O", "6": "",
            "7": "",  "8": "",  "9": "",
            "your_token": "X"
        }

        And you're expected to return a response of which field you'd like to
        place your piece in. For example, if you wish to place your token in
        field 7, your response should look like this:

        { "move": 7 }

        The board is arranged as follows:

         1 | 2 | 3
        ---+---+---
         4 | 5 | 6
        ---+---+---
         7 | 8 | 9
        
        :param payload: The incoming JSON that contains the game state.
        :type payload: dict[str, Any]
        :return: The move you wish to take.
        :rtype: dict[str, Any]
    """

    # Try printing the payload to see what it looks like!
    print(payload)

    options = [ 1, 2, 3, 4, 5, 6, 7, 8, 9, ]

    # 1. Try filtering out the impossible moves!
    #    If an X or O was already placed at a field, remove it from the options

    #

    # 2. Try finding two in a row! If possible, you can try to place the third
    #    item on the board and get 3 in a row.

    #

    # 3. Perhaps you can block the opponent from getting 3 in a row?

    #

    # Now, pick any of the remaining options.
    # This is just a simple implementation. Naturally, you're welcome to try
    # your own logic.
    return { "move": random.choice(options) }

if __name__ == "__main__":
    raise SystemExit(main())