// -----------------------------------------------------------------------------
// This file contains all application-wide Sass functions.
// -----------------------------------------------------------------------------
@function calculate-box-shadow($depth, $shadow-color) {
  // stylelint-disable-next-line
  $box-shadow: 0 0 $shadow-color;

  @for $i from 0 through $depth {
    // stylelint-disable-next-line
    $box-shadow: #{$box-shadow}, 0 #{$i}px $shadow-color;
  }

  @return $box-shadow;
}

// Color contrast
@function color-yiq(
  $color,
  $dark: $kbc-yiq-text-dark,
  $light: $kbc-yiq-text-light
) {
  // stylelint-disable
  $r: red($color);
  $g: green($color);
  $b: blue($color);

  $yiq: (($r * 299) + ($g * 587) + ($b * 114)) / 1000;
  // stylelint-enable

  @if ($yiq >= $kbc-yiq-contrasted-threshold) {
    @return $kbc-dark;
  } @else {
    @return $kbc-light;
  }
}

@function color-yiq-lightness($color, $delta: 10%) {
  // stylelint-disable
  $r: red($color);
  $g: green($color);
  $b: blue($color);

  $yiq: (($r * 299) + ($g * 587) + ($b * 114)) / 1000;
  // stylelint-enable

  @if ($yiq >= $kbc-yiq-contrasted-threshold) {
    @return -$delta;
  } @else {
    @return $delta;
  }
}