import { xor as xorToolkit } from '../../array/xor.ts';

/**
 * Creates a function that returns the symmetric difference with secondArray.
 *
 * The result contains values that appear in exactly one of the arrays, matching the main
 * {@link xor} behavior.
 *
 * @template T - The type of elements in the arrays.
 * @param secondArray - Values to compare with the piped array.
 * @returns A function that maps a readonly array to its symmetric difference.
 *
 * @example
 * import { pipe, xor } from 'es-toolkit/fp';
 *
 * pipe([1, 2], xor([2, 3]));
 * // => [1, 3]
 */
export function xor<T>(secondArray: readonly T[]): (array: readonly T[]) => T[] {
  return function (array: readonly T[]): T[] {
    return xorToolkit(array, secondArray);
  };
}
