@charset 'UTF-8';

$ei-use-local-fonts: false !default;
$ei-font-path-cdn: 'https://cdn.rawgit.com/mdentinho/elegant-icons-sass/e48e7df0/fonts' !default;
$ei-font-path-local: '/fonts' !default;
$ei-font-filename: 'ElegantIcons' !default;
$ei-font-family: $ei-font-filename !default;
$ei-font-formats: woff2 woff !default;

// Add unicode escape backslash
@function unicode($str) {
  @return unquote('\'')+unquote(str-insert($str, '\\', 1))+unquote('\'');
};

// String replace
@function str-replace($string, $search, $replace: '') {
  $index: str-index($string, $search);

  @if $index {
    @return str-slice($string, 1, $index - 1) + $replace + str-replace(str-slice($string, $index + str-length($search)), $search, $replace);
  }

  @return $string;
}

// Get the keys of a map
@function get-map-keys($map) {
  $keys: ();

  @each $key, $value in $map {
    $keys: append($keys, $key);
  }

  @return $keys;
}

// Define the icon font face
@mixin elegant-icons-font-face() {

  $src: null;
  $path: '#{
    if($ei-use-local-fonts,
       $ei-font-path-local,
       $ei-font-path-cdn)
    }/#{$ei-font-filename}';

  $available-formats: (
    eot: 'embedded-opentype',
    woff2: 'woff2',
    woff: 'woff',
    ttf: 'truetype',
    svg: 'svg',
  );

	$formats-appendices: (
		eot: "?",
		svg: "#ElegantIcons"
	);

	@each $format in $ei-font-formats {
    @if (map-has-key($available-formats, $format) == false) {
      @error '#{$format} is not a valid format. The available formats are: #{get-map-keys($available-formats)}';
    }

		$extension: if(map-has-key($formats-appendices, $format), $format + map-get($formats-appendices, $format), $format);
		$format: if(map-has-key($available-formats, $format), map-get($available-formats, $format), $format);
		$src: append($src, url(quote($path + "." + $extension)) format(quote($format)), comma);
	}

	@font-face {
		font-family: $ei-font-family;
		font-style: normal;
		font-weight: normal;
		src: $src;
	}
}