////
/// @group tooltip
////

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

/// This function is used to quickly get one of the tooltip's theme values. This
/// is really just for the `rmd-tooltip-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 `$rmd-tooltip-theme-values` map
/// keys to get a value for.
/// @return {Color|String|Number} one of the tooltip's theme values.
@function rmd-tooltip-theme($theme-style) {
  @return rmd-theme-get-var-value(
    $theme-style,
    $rmd-tooltip-theme-values,
    tooltip
  );
}

/// This function is used to get one of the tooltip'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 `$rmd-tooltip-theme-values`
///
/// This function is used to create a CSS Variable declaration with an optional
/// fallback value if the CSS Variable has not been declared somehow.
///
/// @param {String} theme-style - One of the `$rmd-tooltip-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 tooltip's theme values as a css variable.
@function rmd-tooltip-theme-var($theme-style, $fallback: null) {
  @return rmd-theme-get-var(
    $theme-style,
    $rmd-tooltip-theme-values,
    tooltip,
    $fallback
  );
}

/// A small util that will rename the `above` and `below` positions of the
/// tooltip to `top` and `bottom` to be used for applying styles.
///
/// @access private
/// @param {String} position - the position to change.
/// @return {String} the position as a valid style name.
@function rmd-tooltip-position-to-property($position) {
  $position: rmd-utils-validate(
    $rmd-tooltip-position-values,
    $position,
    'tooltip position'
  );

  @if $position == 'below' {
    @return 'bottom';
  } @else if $position == 'above' {
    @return 'top';
  }

  @return $position;
}

/// A small util for inversing the position. This is just used for generating
/// the default styles.
///
/// @access private
/// @param {String} position - One of the `$rmd-tooltip-position-values` strings
/// @return {String} the position inversed.
@function rmd-tooltip-inverse-position($position) {
  $position: rmd-utils-validate(
    $rmd-tooltip-position-values,
    $position,
    'tooltip position'
  );

  @if $position == 'left' {
    @return 'right';
  } @else if $position == 'right' {
    @return 'left';
  } @else if $position == 'below' {
    @return 'above';
  }

  @return 'below';
}