from dataclasses import dataclass
from enum import Enum
from typing import Annotated
from beartype import beartype
from beartype.vale import Is


class NBusBaudrate(Enum):
    """
    Enum class for serial baudrate speed.
    """
    SPEED_9600 = 9600
    SPEED_19200 = 19200
    SPEED_38400 = 38400
    SPEED_57600 = 7600
    SPEED_115200 = 115200
    SPEED_230400 = 230400
    SPEED_460800 = 460800
    SPEED_576000 = 576000
    SPEED_921600 = 921600


class NBusParity(Enum):
    """
    Enum class for serial parity.
    """
    NONE = "N"
    ODD = "O"
    EVEN = "E"


@beartype
@dataclass(frozen=True)
class NBusSerialConfig:
    """
    Configuration of serial port.

    :ivar port_name: The serial port identifier.
    :ivar baud: The baud rate for the serial communication.
    :ivar parity: The parity bit setting for the serial communication.
    :ivar timeout: The timeout value for the serial communication.
    :ivar flush_delay: The delay for inter-flushing the serial communication.
    :ivar request_attempts: The number of attempts for a request.
    :ivar enable_log: Flag to enable or disable logging.
    """
    port_name: str
    baud: NBusBaudrate
    parity: NBusParity
    timeout: Annotated[float, Is[lambda value: value > 0]]
    flush_delay: Annotated[float, Is[lambda value: value > 0]]
    request_attempts: Annotated[int, Is[lambda value: value > 0]]
    enable_log: bool