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"""Custom Python types used by MySQL Connector/Python"""
from __future__ import annotations

from typing import Type


class HexLiteral(str):
    """Class holding MySQL hex literals"""

    charset: str = ""
    original: str = ""

    def __new__(cls: Type[HexLiteral], str_: str, charset: str = "utf8") -> HexLiteral:
        hexed = [f"{i:02x}" for i in str_.encode(charset)]
        obj = str.__new__(cls, "".join(hexed))
        obj.charset = charset
        obj.original = str_
        return obj

    def __str__(self) -> str:
        return "0x" + self