import dcc.doom_base
import omg
import tomlkit.toml_file


class Configure(dcc.doom_base.Wad):
    def get_parser(self, prog_name):
        parser = super().get_parser(prog_name)
        parser.add_argument("--complevel", "--cl")
        parser.add_argument("--iwad")
        return parser

    def take_action(self, parsed_args):
        new_config = self.pwad_path.joinpath(self.config_name)
        if new_config.exists():
            raise Exception(f"Config {new_config} already exists.")

        wads = sorted(
            self.pwads.joinpath(self.wad).glob('*.wad', case_sensitive=False),
            reverse=True
        )

        complevel = parsed_args.complevel
        if complevel is None:
            for w in wads:
                try:
                    wad = omg.WadIO(w)
                    complevel = wad.read("COMPLVL").decode("ascii").strip()
                except Exception as e:
                    print(
                        f"Wad {w} likely has no lump COMPLVL (exception {e})")
        if complevel is None:
            complevel = input("Complevel? ")

            
        doc = tomlkit.document()
        doc.add("complevel", complevel)
        if parsed_args.iwad is not None:
            doc.add("iwad", parsed_args.iwad)

        f = tomlkit.toml_file.TOMLFile(new_config)
        f.write(doc)