# ---------------------------------------------------------------------------
# Transport over Serial
# ---------------------------------------------------------------------------
import serial

from transport import GnssTransport


class SerialTransport(GnssTransport):
    def __init__(self, port: str, baudrate: int):
        self._ser = serial.Serial(port, baudrate, timeout=1)

    def read(self, n: int) -> bytes:
        return self._ser.read(n)

    def write(self, data: bytes) -> None:
        self._ser.write(data)

    def close(self) -> None:
        if self._ser.is_open:
            self._ser.close()