//
// Copyright IBM Corp. 2018, 2018
//
// This source code is licensed under the Apache-2.0 license found in the
// LICENSE file in the root directory of this source tree.
//

@use 'sass:map';
@use 'sass:meta';
@use 'themes';

$theme: themes.$white !default;
$-custom-property-prefix: 'cds';

/// @access public
/// @group @carbon/themes
@mixin theme($active-theme: $theme) {
  $parent-theme: $theme;
  $theme: $active-theme !global;

  @each $token, $value in $theme {
    @include -custom-property($token, $value);
  }

  @content;

  $theme: $parent-theme !global;
}

/// @access public
/// @group @carbon/themes
@mixin set($active-theme) {
  $theme: $active-theme !global;
}

/// @access private
/// @group @carbon/themes
@mixin -custom-property($name, $value, $prefix: $-custom-property-prefix) {
  @if meta.type-of($value) == map {
    @each $property, $property-value in $value {
      // Only support one-level of depth for values that are maps. This is to
      // avoid bringing properties like `breakpoints` on type tokens
      @if type-of($property-value) != map {
        @include -custom-property('#{$name}-#{$property}', $property-value);
      }
    }
  } @else {
    --#{$prefix}-#{$name}: #{$value};
  }
}