//
// Copyright IBM Corp. 2015, 2023
//
// 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 'scss/generated/feature-flags';

$feature-flags: () !default;
$feature-flags: map.merge(
  feature-flags.$generated-feature-flags,
  $feature-flags
);

@function check-for-flag($name) {
  @if map.has-key($feature-flags, $name) == true {
    @return true;
  }
  @error 'Unable to find a feature flag named: #{$name}';
}

@mixin add($name, $enabled: false) {
  @if map.has-key($feature-flags, $name) == true {
    @error 'A feature flag named #{$name} already exists';
  }

  $feature-flags: map.set($feature-flags, $name, $enabled) !global;
}

@mixin enable($name) {
  @if check-for-flag($name) == true {
    $feature-flags: map.set($feature-flags, $name, true) !global;
  }
}

@mixin disable($name) {
  @if check-for-flag($name) == true {
    $feature-flags: map.set($feature-flags, $name, false) !global;
  }
}

@mixin merge($flags) {
  $feature-flags: map.merge($feature-flags, $flags) !global;
}

/// Check if a feature flag is enabled
/// @param {String} $name
/// @returns {Boolean}
@function enabled($name) {
  @if check-for-flag($name) == true {
    @return map.get($feature-flags, $name);
  }
}

/// Emit the content of the mixin if the feature flag is enabled
/// @param {String} $name
/// @content
@mixin enabled($name) {
  @if enabled($name) {
    @content;
  }
}