@mixin add-bar(
  $weight: 1,
  $color: 'ink',
  $side: 'left',
  $radius: 0,
  $offset-x: 0,
  $offset-y: 0
) {
  $weight: if(
    $weight == null,
    1,
    $weight
  );
  $color: if(
    $color == null,
    'ink',
    $color
  );
  $side: if(
    $side == null,
    'left',
    $side
  );
  $radius: if(
    $radius == null,
    0,
    $radius
  );
  $offset-x: if(
    $offset-x == null,
    0,
    $offset-x
  );
  $offset-y: if(
    $offset-y == null,
    0,
    $offset-y
  );

  position: relative;

  &::after {
    background-color: color($color);
    border-radius: radius($radius);
    content: '';
    display: block;
    position: absolute;

    @if $side == ('left' or 'right') {
      bottom: units($offset-y);
      top: units($offset-y);
      width: units($weight);
      #{unquote($side)}: units($offset-x);
    }

    @else {
      height: units($weight);
      left: units($offset-x);
      right: units($offset-x);
      #{unquote($side)}: units($offset-y);
    }
  }
}

@mixin remove-bar {
  &::after {
    display: none;
  }
}