//////////////////////////////
// Deprecation Warnings for new Setting System
//////////////////////////////
@function singularity-deprecation-warning() {
  $Singularity-Global-Vars: 'grids', 'gutters', 'gutter-styles', 'mobile-first', 'output', 'direction', 'include-border-box', 'include-clearfix';

  @each $var in $Singularity-Global-Vars {
    @if global-variable-exists($var) {
      $Singularity-Warning-Output: "DEPRECATION: In order to remove global variable naming conflicts, Singularity's settings have been moved into the single `$singularity` variable.";

      @if $var == 'grids' or $var == 'gutters' or $var == 'gutter-styles' {
        $Singularity-Singleton-Var: str_slice($var, 1, -2);
        $Singularity-Warning-Output: $Singularity-Warning-Output + " Please replace all `$#{$var}` definitions, and all `add-#{$Singularity-Singleton-Var}()` calls to `@include add-#{$Singularity-Singleton-Var}()`";
      }
      @else {
        // String Replace
        $Singularity-Replace-Index: -1;
        $Singularity-Replace-Holder: '';
        $Singularity-Replace-Spaced: $var;
        @while $Singularity-Replace-Index != 0 {
          $Singularity-Replace-Index: str-index($Singularity-Replace-Spaced, '-');
          @if $Singularity-Replace-Index != 0 {
            $Singularity-Replace-Holder: str-slice($Singularity-Replace-Spaced, 1, $Singularity-Replace-Index - 1) + ' ';
            $Singularity-Replace-Spaced: str-slice($Singularity-Replace-Spaced, $Singularity-Replace-Index + 1);
            $Singularity-Replace-Spaced: $Singularity-Replace-Holder + $Singularity-Replace-Spaced;
            $Singularity-Replace-Index: str-index($Singularity-Replace-Spaced, '-');
          }
        }
        $Singularity-Warning-Output: $Singularity-Warning-Output + " Please replace all `$#{$var}` definitions with `@include sgs-change('#{$Singularity-Replace-Spaced}', $value)`";
      }

      $Singularity-Warning-Output: $Singularity-Warning-Output + " In the next version of Singularity, this warning will be removed";

      @warn $Singularity-Warning-Output;
    }
  }

  @return false;
}

$DEPRECATE:singularity-deprecation-warning();

//////////////////////////////
// Has Setting
//////////////////////////////
@function sgs-has($setting) {
  @if map-has-key($singularity, $setting) {
    @return true;
  }
  @else {
    @return false;
  }
}

//////////////////////////////
// Get Settings
//////////////////////////////
@function sgs-get($setting) {
  @if sgs-has($setting) {
    @return map-get($singularity, $setting);
  }
  @else {
    @return map-get($Singularity-Settings, $setting);
  }
}

//////////////////////////////
// Set Settings
//////////////////////////////
@function sgs-set($setting, $value) {
  @if (str-index($setting, '-') > 0 or str-index($setting, '_') > 0) and str-index($setting, ' ') == 0 {
    @warn "Words in Singularity settings should be spaces, not dashes or underscores. Please replace dashes and underscores between words with spaces. Settings will not work as expected until changed.";
  }
  $singularity: map-merge($singularity, ($setting: $value)) !global;
  @return true;
}

@mixin sgs-change($setting, $value) {
  $sgs-change: sgs-set($setting, $value);
}

//////////////////////////////
// Remove Setting
//////////////////////////////
@function sgs-reset($setting) {
  $Return: ();

  @each $Key, $Value in $singularity {
    $Return: if($setting == $Key, $Return, map-merge($Return, ($Key: $Value)));
  }

  $singularity: $Return !global;
  @return true;
}

@mixin sgs-reset($setting) {
  $sgs-reset: sgs-reset($setting);
}