////
/// (c) hidoo | MIT License
/// @group font feature
////

@use "sass:map";
@use "sass:math";
@use "sass:meta";
@use "../math" as _math;
@use "../../../settings";

/// default options
/// @access private
/// @type Map
///
$_default-options: (
  "monospace": false,
  "relative-size": false
) !default;

/// return real font-size
/// @param {String|Number} $value value of font-size (one of `"xsmall"`, `"small"`, `"medium"`, `"large"`, `"xlarge"`, `"2xlarge"`, `"3xlarge"`, `"4xlarge"` or number)
/// @param {Map} $options [()] - options
/// @param {Boolean} $options.monospace [false] - font-family is monospace or not
/// @param {Boolean} $options.relative-size [false] - convert to rem value or not
/// @return {Number} real font-size
///
/// @example scss - scss inputs
///   .selector {
///     font-size: function.font-size($value: "medium");
///   }
///
/// @example css - css outputs
///   .selector {
///     font-size: 14px;
///   }
///
@function size($value, $options: ()) {
  @if meta.type-of($value) == "string" {
    @if meta.type-of(settings.$font-base-size) != "number" {
      @error "@function function.font-size: settings.$font-base-size must be number.";
    }

    @if meta.type-of(settings.$font-size-presets) != "map" {
      @error "@function function.font-size: settings.$font-size-presets must be map.";
    }

    $value: math.floor(
      settings.$font-base-size * map.get(settings.$font-size-presets, $value)
    );
  }

  @if meta.type-of($value) != "number" {
    $presets: meta.inspect(map.keys(settings.$font-size-presets));

    @error "@function function.font-size: Argument $value must be number or one of #{$presets}.";
  }

  $opts: map.merge($_default-options, $options);
  $monospace: map.get($opts, "monospace");
  $relative-size: map.get($opts, "relative-size");

  // adjust smaller than default
  @if $monospace {
    $value: math.floor($value * 0.9);
  }

  // convert to relative size
  @if $value > 0 and $relative-size {
    @return _math.px-to-rem($value);
  }

  @return $value;
}