import { filterNils } from './filterNils';

/**
 * Turns any value into an array of non-nullish items of type T.
 *
 * - If input is null/undefined        → returns []
 * - If input is already an array      → filters out null/undefined
 * - If input is a single non-nillish value → returns [value]
 */
export function noNilsArray<T>(value: T | T[] | null | undefined): NonNullable<T>[] {
	if (value == null) {
		return [];
	}

	if (Array.isArray(value)) {
		return filterNils(value);
	}

	// single non-nullish value
	return [value];
}