"""Build a Sega Master System .sms cartridge from a conversion."""
from __future__ import annotations

from . import viewer


def export_sms(conv, output_path, source_path=None, display="forever",
               seconds=0, video="ntsc"):
    if not output_path.lower().endswith((".sms", ".bin")):
        output_path += ".sms"
    d = conv.data
    rom = viewer.build_rom(d["patterns"], d["nametable"], d["palette"])
    return viewer.write_sms(rom, output_path)