@use "sass:map";
/*****************************************************************************
Typography Definitions
******************************************************************************/

// Define font families
$default-font-family: var(--font-family-default);
$display-font-family: var(--font-family-display);
$icon-font-family: var(--font-family-icon);
$icon-outlined-font-family: var(--font-family-icon-outlined);

// Define font weights.
$default-font-weights: (
  lighter: var(--font-weight-lighter),
  normal: var(--font-weight-normal),
  bold: var(--font-weight-bold),
  bolder: var(--font-weight-bolder)
);

$display-font-weights: (
  normal: var(--font-weight-normal),
  bold: var(--font-weight-bold)
);

$icon-font-weights: (
  normal: var(--font-weight-normal)
);

// Define font sizes.
$default-font-sizes: (
  xs: var(--font-size-6),
  s: var(--font-size-5),
  m: var(--font-size-4),
  l: var(--font-size-3),
  xl: var(--font-size-2),
  xxl: var(--font-size-1)
);

$display-font-sizes: (
  xs: var(--display-font-size-4),
  s: var(--display-font-size-3),
  m: var(--display-font-size-2),
  l: var(--display-font-size-1)
);

$icon-font-sizes: (
  xs: var(--icon-font-size-6),
  s: var(--icon-font-size-5),
  m: var(--icon-font-size-4),
  l: var(--icon-font-size-3),
  xl: var(--icon-font-size-2),
  xxl: var(--icon-font-size-1)
);

// Validates the specified font map. The Map must contain a font family, a
// weights map and a sizes map. The Map structure looks as follows:
//
// $font: (
//   family: {String},
//   weights: {Map},
//   sizes: {Map}
// );
//
// @param {Map} $font The font map to validate.
// @returns {Map} The same font map as the $font parameter.
@function validate-font($font) {
  @if not map.has-key($font, family) {
    @error 'Font does not define a valid "family".';
  } @else if not map.has-key($font, weights) {
    @error 'Font does not define a valid "weights" map.';
  } @else if not map.has-key($font, default-weight) {
    @error 'Font does not define a valid "default-weight".';
  } @else if not map.has-key($font, sizes) {
    @error 'Font does not define a valid "sizes" map.';
  } @else if not map.has-key($font, default-size) {
    @error 'Font does not define a valid "default-size".';
  }

  @if map.has-key($font, default-size) and map.has-key($font, sizes) {
    $default-size: map.get($font, default-size);
    $sizes: map.get($font, sizes);
    @if not map.has-key($sizes, $default-size) {
      @error 'Default font-size does not exist in the "sizes" map.';
    }
  }

  @if map.has-key($font, default-weight) and map.has-key($font, weights) {
    $default-weight: map.get($font, default-weight);
    $weights: map.get($font, weights);
    @if not map.has-key($weights, $default-weight) {
      @error 'Default font-weight does not exist in the "weights" map.';
    }
  }

  @return $font;
}

// Defines a font map, which contains a family, different weights, a default
// weight, different sizes and a default size.
// @param {String} $family The font-family.
// @param {Map} $weights The available font-weights for the family.
// @param {String} $default-weight The default font-weight for the family.
// @param {Map} $sizes The available font-sizes for the family.
// @param {String} $default-size The default font-size for the family.
// @returns {Map} A complete font map.
@function define-font(
  $family,
  $weights,
  $default-weight,
  $sizes,
  $default-size
) {
  $result: (
    family: $family,
    weights: $weights,
    default-weight: $default-weight,
    sizes: $sizes,
    default-size: $default-size
  );
  @return $result;
}

// Define a default font map.
$default-font: define-font(
  $default-font-family,
  $default-font-weights,
  normal,
  $default-font-sizes,
  xs
);

// Define a display font map.
$display-font: define-font(
  $display-font-family,
  $display-font-weights,
  normal,
  $display-font-sizes,
  xs
);

// Define an icon font map.
$icon-font: define-font(
  $icon-font-family,
  $icon-font-weights,
  normal,
  $icon-font-sizes,
  xs
);

// Define an icon outlined font map.
$icon-outlined-font: define-font(
  $icon-outlined-font-family,
  $icon-font-weights,
  normal,
  $icon-font-sizes,
  xs
);