@mixin switch-size($width, $height, $font-size, $handle-margin) {
  width: $width;
  height: $height;

  .switch-label {
    font-size: $font-size;
  }

  .switch-handle {
    width: $height - $handle-margin * 2;
    height: $height - $handle-margin * 2;
  }

  .switch-input:checked ~ .switch-handle {
    left: $width - $height + $handle-margin;
  }
}

@mixin switch($type, $width, $height, $font-size, $handle-margin) {
  position: relative;
  display: inline-block;
  width: $width;
  height: $height;
  vertical-align: top;
  cursor: pointer;
  background-color: transparent;

  .switch-input {
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
  }

  .switch-label {
    position: relative;
    display: block;
    height: inherit;
    @if $type == icon {
      font-family: FontAwesome;
    }
    font-size: $font-size;
    font-weight: 600;
    text-transform: uppercase;
    @if $type == ddd {
      background-color: $gray-100;
    } @else {
      background-color: #fff;
    }
    border: 1px solid $border-color;
    border-radius: 2px;
    transition: opacity background .15s ease-out;
  }
  @if $type == text or $type == icon {
    .switch-label::before,
    .switch-label::after {
      position: absolute;
      top: 50%;
      width: 50%;
      margin-top: -.5em;
      line-height: 1;
      text-align: center;
      transition: inherit;
    }
    .switch-label::before {
      right: 1px;
      color: $gray-200;
      content: attr(data-off);
    }
    .switch-label::after {
      left: 1px;
      color: #fff;
      content: attr(data-on);
      opacity: 0;
    }
  }
  .switch-input:checked ~ .switch-label {
    //background: $gray-lightest;
  }
  .switch-input:checked ~ .switch-label::before {
    opacity: 0;
  }
  .switch-input:checked ~ .switch-label::after {
    opacity: 1;
  }

  .switch-handle {
    position: absolute;
    top: $handle-margin;
    left: $handle-margin;
    width: $height - $handle-margin * 2;
    height: $height - $handle-margin * 2;
    background: #fff;
    border: 1px solid $border-color;
    border-radius: 1px;
    transition: left .15s ease-out;
    @if $type == ddd {
      border: 0;
      box-shadow: 0 2px 5px rgba(0, 0, 0, .3);
    }
  }

  .switch-input:checked ~ .switch-handle {
    left: $width - $height + $handle-margin;
  }


  @if $type == ddd {
    @extend .switch-pill;
  }

  //size variations
  @if $type == default {

    &.switch-lg {
      @include switch-size($switch-lg-width, $switch-lg-height, $switch-lg-font-size, $handle-margin);
    }
    &.switch-sm {
      @include switch-size($switch-sm-width, $switch-sm-height, $switch-sm-font-size, $handle-margin);
    }
    &.switch-xs {
      @include switch-size($switch-xs-width, $switch-xs-height, $switch-xs-font-size, $handle-margin);
    }

  } @else if $type == text {

    &.switch-lg {
      @include switch-size($switch-text-lg-width, $switch-text-lg-height, $switch-text-lg-font-size, $handle-margin);
    }
    &.switch-sm {
      @include switch-size($switch-text-sm-width, $switch-text-sm-height, $switch-text-sm-font-size, $handle-margin);
    }
    &.switch-xs {
      @include switch-size($switch-text-xs-width, $switch-text-xs-height, $switch-text-xs-font-size, $handle-margin);
    }

  } @else if $type == icon {

    &.switch-lg {
      @include switch-size($switch-icon-lg-width, $switch-icon-lg-height, $switch-icon-lg-font-size, $handle-margin);
    }
    &.switch-sm {
      @include switch-size($switch-icon-sm-width, $switch-icon-sm-height, $switch-icon-sm-font-size, $handle-margin);
    }
    &.switch-xs {
      @include switch-size($switch-icon-xs-width, $switch-icon-xs-height, $switch-icon-xs-font-size, $handle-margin);
    }

  } @else if $type == ddd {

    &.switch-lg {
      @include switch-size($switch-lg-width, $switch-lg-height, $switch-lg-font-size, 0);
    }
    &.switch-sm {
      @include switch-size($switch-sm-width, $switch-sm-height, $switch-sm-font-size, 0);
    }
    &.switch-xs {
      @include switch-size($switch-xs-width, $switch-xs-height, $switch-xs-font-size, 0);
    }
  }
}

@mixin switch-variant($color) {
  > .switch-input:checked ~ .switch-label {
    background: $color;
    border-color: darken($color, 10%);
  }

  > .switch-input:checked ~ .switch-handle {
    border-color: darken($color, 10%);
  }
}

@mixin switch-outline-variant($color) {
  > .switch-input:checked ~ .switch-label {
    background: #fff;
    border-color: $color;

    &::after {
      color: $color;
    }
  }

  > .switch-input:checked ~ .switch-handle {
    border-color: $color;
  }
}

@mixin switch-outline-alt-variant($color) {
  > .switch-input:checked ~ .switch-label {
    background: #fff;
    border-color: $color;

    &::after {
      color: $color;
    }
  }

  > .switch-input:checked ~ .switch-handle {
    background: $color;
    border-color: $color;
  }
}

$switch-lg-width: 48px;
$switch-lg-height: 28px;
$switch-lg-font-size: 12px;

$switch-width: 40px;
$switch-height: 24px;
$switch-font-size: 10px;

$handle-margin: 2px;

$switch-sm-width: 32px;
$switch-sm-height: 20px;
$switch-sm-font-size: 8px;

$switch-xs-width: 24px;
$switch-xs-height: 16px;
$switch-xs-font-size: 7px;


$switch-text-lg-width: 56px;
$switch-text-lg-height: 28px;
$switch-text-lg-font-size: 12px;

$switch-text-width: 48px;
$switch-text-height: 24px;
$switch-text-font-size: 10px;

$switch-text-sm-width: 40px;
$switch-text-sm-height: 20px;
$switch-text-sm-font-size: 8px;

$switch-text-xs-width: 32px;
$switch-text-xs-height: 16px;
$switch-text-xs-font-size: 7px;


$switch-icon-lg-width: 56px;
$switch-icon-lg-height: 28px;
$switch-icon-lg-font-size: 12px;

$switch-icon-width: 48px;
$switch-icon-height: 24px;
$switch-icon-font-size: 10px;

$switch-icon-sm-width: 40px;
$switch-icon-sm-height: 20px;
$switch-icon-sm-font-size: 8px;

$switch-icon-xs-width: 32px;
$switch-icon-xs-height: 16px;
$switch-icon-xs-font-size: 7px;

.switch.switch-default {
  @include switch("default", $switch-width, $switch-height, $switch-font-size, $handle-margin);
}

.switch.switch-text {
  @include switch("text", $switch-text-width, $switch-text-height, $switch-text-font-size, $handle-margin);
}

.switch.switch-icon {
  @include switch("icon", $switch-icon-width, $switch-icon-height, $switch-icon-font-size, $handle-margin);
}

.switch.switch-3d {
  @include switch("ddd", $switch-width, $switch-height, $switch-font-size, 0);
}

//pills style
.switch-pill {
  .switch-label,
  .switch-handle {
    border-radius: 50em;
  }

  .switch-label::before {
    right: 2px;
  }
  .switch-label::after {
    left: 2px;
  }
}

@each $color, $value in $theme-colors {
  //normal style
  .switch-#{$color} {
    @include switch-variant($value);
  }
  //outline style
  .switch-#{$color}-outline {
    @include switch-outline-variant($value);
  }
  //outline alternative style
  .switch-#{$color}-outline-alt {
    @include switch-outline-alt-variant($value);
  }
}