/**
 * Returns `true` when every adjacent pair in `values` is at least
 * `step * minStepsBetweenValues` apart. For a scalar input the invariant is
 * vacuous — a single thumb has no neighbour to collide with — so the
 * function short-circuits to `true`.
 */
export function validateMinimumDistance(
	values: number | readonly number[],
	step: number,
	minStepsBetweenValues: number,
): boolean {
	if (!Array.isArray(values)) {
		return true;
	}

	const distances = values.reduce((acc: number[], val, index, vals) => {
		if (index === vals.length - 1) {
			return acc;
		}

		// biome-ignore lint/style/noNonNullAssertion: index+1 < length here
		acc.push(Math.abs(val - vals[index + 1]!));
		return acc;
	}, []);

	return Math.min(...distances) >= step * minStepsBetweenValues;
}