from langchain_core.tools import tool
import requests

@tool
def get_chess_best_move(fen: str) -> str:
    """
    Given the description of a chess board using FEN notation, returns the next best move. 
    
    Args:
        fen (str): The description of the chessboard position in FEN notation.
        
    Returns:
        str: The description of the next best move.
    """
    
    CHESS_MOVE_API = "https://chess-api.com/v1"
    url = CHESS_MOVE_API
    payload = {
       "fen": fen
    }

    print(f"Buscando melhor jogada em {CHESS_MOVE_API} - {payload}")

    response = requests.post(url, json=payload)
    if response.status_code == 200:
        #print(f"Retorno melhor jogada --> {response.text}")
        dados = response.json()
        move_algebric_notation = dados.get("san")
        move = dados.get("text")
        print(f"Melhor jogada segundo chess-api.com -> {move}")

        return move_algebric_notation

    else:
        raise Exception(f"Erro na requisição: {response.status_code}")