/**
 * Requires
 */
@use "sass:list";
@use "sass:meta";

/**
 * Get missing default arguments
 * @param {*} $data - Arguments, value or list
 * @param {*} $optional - Any number of optional argument defaults
 * @return {list} - A list with arguments and defaults
 */
@function default-args($data, $optional...) {
  @if $data {
    $result: ();
    @if meta.type-of($data) == list {
      $value: list.nth($data, 1);
      @if $value {
        $result: list.append($result, $value);
        $index: 2;
        @each $default in $optional {
          $current: list.nth($data, $index);
          @if $current {
            $result: list.append($result, $current);
          } @else {
            $result: list.append($result, $default);
          }
          $index: $index + 1;
        }
      } @else {
        @error 'default-args::$data first item is required';
      }
    } @else {
      $result: list.append($result, $data);
      @each $default in $optional {
        $result: list.append($result, $default);
      }
    }
    @return $result;
  } @else {
    @error 'default-args::$data is required';
  }
}