from .field_encoder import field_encoder
from .field_decoder import field_decoder

class field:
    def __init__(self, title: str, target: type, size: int = 4) -> None:
        self.__title = title
        self.__target_type = target
        self.__size = size
        self.__content = None
        self.__float_precission = 2

    def set_precission(self, target: int) -> object:
        self.__precission = target
        return self

    @property
    def precission(self) -> int:
        return self.__precission

    def set(self, target: any) -> object:
        if type(target) is not self.__target_type:
            raise TypeError("Field type is frong.")

        self.__content = target
        return self

    def get(self) -> any:
        return self.__content

    @property
    def size(self) -> int:
        return len(self)

    @property
    def title(self) -> str:
        return self.__title

    @property
    def target_type(self) -> type:
        return self.__target_type

    def __len__(self) -> int:   
        return self.__size

    def encoder(self) -> field_encoder:
        return field_encoder(self)

    def decoder(self) -> field_decoder:
        return field_decoder(self)