import { InputStep } from './InputStep';
import { Locale } from './Locale';
import { QuestionnaireStateKey } from './QuestionnaireState';
import { StepId } from './StepId';
export type UiState = {
    language: Locale;
    stepId: StepId;
    isEditing: boolean;
    isSubmitting: boolean;
    isShowingErrors: boolean;
    setValue: (key: QuestionnaireStateKey, value: string | undefined) => void;
    /**
     * File-typed write path, parallel to `setValue`. Used by `hydrateFile` for
     * `type: 'file'` descriptors, whose value is a `File`, not a string. The
     * `File` is held in the flat state map at runtime (the map is string-typed,
     * so storing casts); safe because state is only serialized by the whitelist
     * submit transform, which excludes file fields.
     *
     * Required: the questionnaire state hook always provides it, and a file
     * field can't function without it, so we guarantee it at compile time. (The
     * generic `HydratableState.ui` keeps it optional for parallel consumers that
     * collect no files — which is why `hydrateFile` still guards at runtime.)
     */
    setFile: (key: QuestionnaireStateKey, file: File | null) => void;
    showErrors: () => void;
    hideErrors: () => void;
    goTo: (step: InputStep) => void;
    setIsEditing: (editing: boolean) => void;
};