@use "sass:map";
@use 'sass:meta';
@use "typographies";
/*****************************************************************************
Typography
******************************************************************************/

// Returns the specified font. The font is either a font map, as defied in
// @see "./_typographies.scss" or a string, either 'default', 'display', 'icon'
// or 'icon-outlined'.
// @param {Map | String} $font The font name or map.
// @returns {Map} A complete font map.
@function get-font($font: default) {
  @if meta.type-of($font) == string {
    @if $font == default {
      @return typographies.$default-font;
    } @else if $font == display {
      @return typographies.$display-font;
    } @else if $font == icon {
      @return typographies.$icon-font;
    } @else if $font == icon-outlined {
      @return typographies.$icon-outlined-font;
    } @else {
      @error 'The font must either be "default", "display" or a map.';
    }
  } @else {
    @return typographies.validate-font($font);
  }
}

// Returns the specified font family for the font type.
// @param {String} $font The font type.
// @returns {String} The specified font family.
@function get-font-family($font: default) {
  $font: get-font($font);
  @return map.get($font, family);
}

// Returns the specified font weight for a specific font tpye. Note that not all
// font weights are allowed for different font types. Thus the function throws
// an error if the weight is not available for the spefified type.
// @param {String} $font The font type.
// @param {String} $weight The font weight.
// @returns {String} The specified font weight for the specified font type.
@function get-font-weight($font: default, $weight: null) {
  $font: get-font($font);
  $weights: map.get($font, weights);
  @if not $weight {
    $weight: map.get($font, default-weight);
  }
  @if map.has-key($weights, $weight) {
    @return map.get($weights, $weight);
  } @else {
    @error 'The spefified font-weight "#{$weight}" does not exist.';
  }
}

// Returns the specified font size for a specific font tpye. Note that not all
// font sizes are allowed for different font types. Thus the function throws
// an error if the size is not available for the spefified type. If the size is
// not specified, the function defaults to the default font size defined by the
// font type.
// @param {String} $font The font type.
// @param {String} $size The font size.
// @returns {String} The specified font size for the specified font type.
@function get-font-size($font: default, $size: null) {
  $font: get-font($font);
  $sizes: map.get($font, sizes);
  @if not $size {
    $size: map.get($font, default-size);
  }
  @if map.has-key($sizes, $size) {
    @return map.get($sizes, $size);
  } @else {
    @error 'The spefified font-size "#{$size}" does not exist.';
  }
}

// A mixin to include font types with the specified type, weight and
// size.
// @param {String} $font The font type.
// @param {String} $weight The font weight.
// @param {String} $size The font size.
@mixin font($font: default, $weight: null, $size: null) {
  $family: get-font-family($font);
  $weight: get-font-weight($font, $weight);
  $size: get-font-size($font, $size);
  font: $weight $size $family;
}

// A mixin to include font family with the specified type.
// @param {String} $font The font type.
// @param {String} $weight The font weight.
// @param {String} $size The font size.
@mixin font-family($font: default) {
  $family: get-font-family($font);
  font-family: $family;
}

// A mixin to include a font weight for a specific font.
// @param {String} $font The font type.
// @param {String} $weight The font weight.
@mixin font-weight($font: default, $weight: null) {
  font-weight: get-font-weight($font, $weight);
}

// A mixin to include a font size for a specific font.
// @param {String} $font The font type.
// @param {String} $weight The font weight.
@mixin font-size($font: default, $size: null) {
  font-size: get-font-size($font, $size);
}

// Can be used to loop in every font size for a specific font.
// @param {String} $font The font from which to get the sizes.
@mixin for-each-font-size($font) {
  $font: get-font($font);
  $sizes: map.get($font, sizes);
  @each $size, $value in $sizes {
    @content($size, $value);
  }
}