////
//// @group typography
////

/// Returns the `$normal-font` declaration either as an extend or re-declares
///
/// @param {Bool} $extend [true]
///   If set to `false` will redeclare the `$normal-font` family

@mixin normal-font($extend: true) {
  @if $extend {
    @extend %normal-font;
  } @else {
    font-family: $normal-font;
  }
}

/// Returns the `$heading-font` declaration either as an extend or re-declares
///
/// @param {Bool} $extend [true]
///   If set to `false` will redeclare the `$heading-font` family

@mixin heading-font($extend: true) {
  @if $extend {
    @extend %heading-font;
  } @else {
    font: {
      family: $heading-font;
      weight: 700;
    };
  }
}

/// Returns the `$heading-font-primary` declaration either as an extend or re-declares
///
/// @deprecated Use `heading-font` instead
/// @alias heading-font
/// @param {Bool} $extend [true]
///   If set to `false` will redeclare the `$heading-font-primary` family

@mixin heading-font-primary($extend: true) {
  @include heading-font($extend);
}

/// Returns the `$heading-font-secondary` declaration either as an extend or re-declares
///
/// @deprecated Use `heading-font` instead
/// @alias heading-font
/// @param {Bool} $extend [true]
///   If set to `false` will redeclare the `$heading-font-secondary` family

@mixin heading-font-secondary($extend: true) {
  @include heading-font($extend);
}

/// Returns the `$heading-font-secondary` declaration either as an extend or re-declares
///
/// @alias heading-font-secondary

@mixin bold-font($extend: true) {
  @include heading-font($extend);
}

/// Returns the `$normal-font` declaration in italic either as an extend or re-declares
///
/// @param {Bool} $extend [true]
///   If set to `false` will redeclare the `$normal-font` family and set the font to italic

@mixin italic-font($extend: true) {
  @if $extend {
    @extend %italic-font;
  } @else {
    font: {
      family: $normal-font;
      style: italic;
    };
  }
}

/// Builds the heading font size with pre-defined sizes and line-heights from `$heading-font-sizes`
/// and `$heading-line-heights` respecively
///
/// @param {Number (unitless)} $level
///   Set a heading level between 1-6
///
/// @param {Bool} $heading-font [true]
///   DEPRECATED
///
/// @param {Bool} $extend [true]
///   If set to `false` will redeclare the font-family settings

@mixin heading($level, $heading-font: true, $extend: true) {
  $font-size: nth($heading-font-sizes, $level);
  $line-height: nth($heading-line-heights, $level);
  @include heading-font($extend);
  font-size: em($font-size);
  line-height: $line-height + em;
}