import { curryN } from "@unboxing/function";
import { isString } from "@unboxing/is";

interface Slice {
  (a: number, b: number, list: string): string;
  <T>(a: number, b: number, list: ArrayLike<T>): T[];
  (a: number, b: number): {
      (list: string): string;
      <T>(list: ArrayLike<T>): T[];
  };
  (a: number): {
      (b: number, list: string): string;
      <T>(b: number, list: ArrayLike<T>): T[];
      (b: number): {
          (list: string): string;
          <T>(list: ArrayLike<T>): T[];
      };
  };
}

/**
 * Returns the elements of the given list or string (or object with a `slice`
 * method) from `fromIndex` (inclusive) to `toIndex` (exclusive).
 */
export const sliceArray = curryN(3, <T>(fromIndex: number, toIndex: number, list: ArrayLike<T> | string = []) =>
    isString(list) ? list.slice(fromIndex, toIndex) : Array.prototype.slice.call(list, fromIndex, toIndex)
) as Slice