@use 'sass:list';
@use 'sass:map';
@use '../function/colors';
@use '../variable/decisions';
@use '../variable/sets';

@mixin define($theme: light) {
  $sets: ();
  @each $context, $uses in decisions.$values {
    @each $use, $families in $uses {
      @each $family, $settings in $families {
        $shade: list.nth($settings, 1);
        $alpha: false;
        $hover: false;

        @if list.length($settings) > 1 {
          $params: list.nth($settings, 2);
          @if map.has-key($params, alpha) {
            $alpha: true;
          }
          @if map.has-key($params, hover) {
            $hover: true;
          }
        }
        @each $tint, $shades in map.get(sets.$values, $family) {
          @if map.has-key($shades, $shade) {
            $token: $context $use $tint;
            $set: colors.from($token, set);
            $sets-tint: map.get($sets, $tint);
            @if $sets-tint == null {
              $sets-tint: ();
            }
            @if not map.has-key($sets-tint, $set) or $hover {
              $sets-tint: map.merge($sets-tint, ($set: (token: $token, hover: $hover)));
            }

            $sets: map.merge($sets, ($tint: $sets-tint));

            @if $theme == light {
              @include _decide($token);

              @if $hover == true {
                @include _decide($token, hover);
                @include _decide($token, active);
              }
            }
          }
        }
      }
    }
  }

  @each $family, $tints in sets.$values {
    @each $tint, $shades in $tints {
      @if map.has-key($sets, $tint) {
        @each $set, $map in map.get($sets, $tint) {
          $token: map.get($map, token);
          $hover: map.get($map, hover);
          @include _set($token, $theme);

          @if $hover {
            @include _set($token, $theme, hover);
            @include _set($token, $theme, active);
          }
        }
      }
    }
  }
}

@function _parameter($type: null) {
  @if $type == null {
    @return ();
  }
  @if $type == hover {
    @return (hover: true);
  }
  @if $type == active {
    @return (active: true);
  }
}

@mixin _decide($token, $type: null) {
  $parameters: _parameter($type);
  $var: colors.from($token, decision, $parameters);
  #{$var}: colors.from($token, set, map.merge($parameters, (var: true)));
}

@mixin _set($token, $theme, $type: null) {
  $parameters: _parameter($type);
  $var: colors.from($token, set, $parameters);
  #{$var}: colors.from($token, hex, map.merge($parameters, (theme: $theme)));
}