@use 'sass:map';
@use '../../token-definition';

// The prefix used to generate the fully qualified name for tokens in this file.
$prefix: (mdc, list);

/// Generates the tokens for MDC list
/// @param {Map} $systems The MDC system tokens
/// @param {Boolean} $exclude-hardcoded Whether to exclude hardcoded token values
/// @param {Map} $token-slots Possible token slots
/// @return {Map} A set of tokens for the MDC list
@function get-tokens($systems, $exclude-hardcoded, $token-slots) {
  $mdc-tokens: token-definition.get-mdc-tokens('list', $systems, $exclude-hardcoded);

  @return token-definition.namespace-tokens($prefix, _fix-tokens($mdc-tokens), $token-slots);
}

/// Fixes values in the list tokens that are inconsistent with its usage.
/// @param {Map} $initial-tokens Map of list tokens currently being generated.
/// @return {Map} The given tokens, with the inconsistent values replaced with valid ones.
@function _fix-tokens($tokens) {
  // This does not match the spec, which defines this to be `md.sys.color.surface`.
  // However, this interferes with the use case of placing a list on other components. For example,
  // the bottom sheet's container color is `md.sys.color.surface-container-low`. Instead, allow the
  // list to just display the colors for its background.
  @if map.get($tokens, list-item-container-color) != null {
    $tokens: map.set($tokens, list-item-container-color, transparent);
  }

  // Match spec, which has list-item-leading-icon-size of 24px.
  // Current version of tokens (0_161) has 18px.
  @if map.get($tokens, list-item-leading-icon-size) != null {
    $tokens: map.set($tokens, list-item-leading-icon-size, 24px);
  }

  @return $tokens;
}