Function toggleKeyKeepOne

website/app/components/preview/toggles.ts:24–30

(
	values: Record<string, boolean>,
	value: string | number,
)

 * Toggle one active key while ensuring at least one key stays selected.
 */
export const toggleKeyKeepOne = (
	values: Record<string, boolean>,
	value: string | number,
): Record<string, boolean> => {
	const next = toggleKey(values, value);
	return Object.keys(next).length === 0 ? values : next;
};

/**
 * Toggle one variable axis while keeping `wght` enabled, since published