//////////////////////////////
// functions.scss
// MIT LICENSE © 2015 Felix Spöttel
///////////////////////////////

// Variable transformation
///////////////////////////////

@function da-toValue($value) {
  $val: unquote($value + "");
  @return $val;
}

@function da-toStr($value) {
  $str: $value + "";
  @return $str;
}

@function da-toTime($value) {
  $time: $value + "";
  @if (str-index($time, s) == null) {
    $time: unquote($time + "s");
  }
  @else {
    $time: da-toValue($time);
  }
  @return $time;
}

// Check if a value is in a declared group
///////////////////////////////

@function da-in-category($value, $target-list, $categories-map: $da-categories) {

  $in-category: false;

  @each $category, $list in $categories-map {

    @if sl-contain($list, $value) {

      $category: da-toValue($category);

      @if sl-contain($target-list, $category) {
        $in-category: true;
      }

    }
  }

  @return $in-category;

}

// Wrapper function around $da-animations & $da-in-category
///////////////////////////////

@function da-valid($value, $list: $da-animations) {
  // Normalize input
  $value: da-toValue($value);
  $list: sl-to-list($list);


  @if sl-contain($list, $value) {
    @return true;
  }
  @else if sl-contain($list, all) {
    @return true;
  }
  @else if da-in-category($value, $list) {
    @return true;
  }
  @else {
    @return false;
  }
}


// Aliases for wrapper
///////////////////////////////

@function da-import($value, $list: $da-animations) {
  @return da-valid($value,$list);
}

@function da-render($value, $list: $da-animations) {
  @return da-valid($value,$list);
}