from typing import Optional

from pydantic import BaseModel, model_validator

from core.enums import GuiOption


class GuiConfig(BaseModel):
    gui_option: GuiOption
    raw_ui_filename: Optional[str] = None

    def should_create_ui(self):
        return self.gui_option == GuiOption.NEW

    @property
    def ui_filename(self) -> str:
        if self.raw_ui_filename is None:
            raise ValueError("ui_filename is None")

        return self.raw_ui_filename

    @model_validator(mode="after")
    def validate_dependent_options(self):
        if self.gui_option == GuiOption.EXISTING and self.raw_ui_filename is None:
            raise ValueError("--ui-filename is required when --gui-option is 'existing'.")

        if self.gui_option == GuiOption.NONE and self.raw_ui_filename:
            raise ValueError("Cannot specify --ui-filename when --gui-option is 'none'.")

        return self