////
/// @group expansion-panel
////

@import '~@react-md/theme/dist/helpers';
@import './variables';

/// This function is used to quickly get one of the expansion-panel's theme
/// values. This is really just for the `rmd-expansion-panel-theme` mixin to
/// provide some validation that a correct style key is used, but might be
/// useful in other cases.
///
/// @param {String} theme-style - One of the `$rmd-expansion-panel-theme-values`
/// map keys to get a value for.
/// @return {Color|String|Number} one of the expansion-panel's theme values.
@function rmd-expansion-panel-theme($theme-style) {
  @return rmd-theme-get-var-value(
    $theme-style,
    $rmd-expansion-panel-theme-values,
    expansion-panel
  );
}

/// This function is used to get one of the expansion-panel's theme variables as
/// a CSS Variable to be applied as a style attribute. By default, the CSS
/// Variable will have a fallback of the current
/// `$rmd-expansion-panel-theme-values`
///
/// This function is used to create a CSS Variable declaration with an optional
/// fallback value if the CSS Variable has not been declared somehow.
///
/// @param {String} theme-style - One of the `$rmd-expansion-panel-theme-values`
/// map keys to set a value for.
/// @param {Color|String|Number} fallback [null] - An optional fallback color to
/// apply. This is set to `null` by default and not used since the link's theme
/// variables should always exist.
/// @return {String} one of the expansion-panel's theme values as a css
/// variable.
@function rmd-expansion-panel-theme-var($theme-style, $fallback: null) {
  @return rmd-theme-get-var(
    $theme-style,
    $rmd-expansion-panel-theme-values,
    expansion-panel,
    $fallback
  );
}