/**
 * Copyright (c) HashiCorp, Inc.
 * SPDX-License-Identifier: MPL-2.0
 */

//
// FORM > TOGGLE
//


// "BASE" CONTROL

.hds-form-toggle {
    position: relative;
    display: inline-block; // we emulate the behaviour of a checkbox/radiobutton control
    isolation: isolate; // used to create a new stacking context
  }
  
  // control (hidden)
  
  .hds-form-toggle__control {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 1;
    display: block;
    height: 100%;
    margin: 0;
    padding: 0;
    color: transparent;
    background-color: transparent;
    border: none;
    outline: none;
    cursor: pointer;
    opacity: 0;
    appearance: none;
  
    &:disabled {
      cursor: not-allowed;
    }
  }
  
  // facade (visible)
  
  .hds-form-toggle__facade {
    position: relative;
    display: block;
    width: var(--token-form-toggle-width);
    height: var(--token-form-toggle-height);
    background-image: var(--token-form-toggle-background-image-data-url);
    background-repeat: no-repeat;
    background-position: var(--token-form-toggle-background-image-position-x) 50%;
    background-size: var(--token-form-toggle-background-image-size) var(--token-form-toggle-background-image-size);
    // notice: we want to share the border color between the "thumb" and the "track" so we use a local CSS prop for this
    border: var(--token-form-radio-border-width) solid var(--border-color);
    border-radius: calc(var(--token-form-toggle-height) / 2);
  
    @media (prefers-reduced-motion: no-preference) {
      transition-timing-function: var(--token-form-toggle-transition-timing-function);
      transition-duration: var(--token-form-toggle-transition-duration);
      transition-property: all;
    }
  
    // used for the "thumb"
  
    &::after {
      position: absolute;
      top: calc(var(--token-form-radio-border-width) * -1);
      left: calc(var(--token-form-radio-border-width) * -1);
      width: var(--token-form-toggle-thumb-size);
      height: var(--token-form-toggle-thumb-size);
      background-color: var(--token-form-control-base-surface-color-default);
      border: var(--token-form-radio-border-width) solid var(--border-color);
      border-radius: 50%;
      transform: translate3d(0, 0, 0);
      content: "";
  
      @media (prefers-reduced-motion: no-preference) {
        transition-timing-function: var(--token-form-toggle-transition-timing-function);
        transition-duration: var(--token-form-toggle-transition-duration);
        transition-property: all;
      }
    }
  
    // used for the focus
  
    &::before {
      // notice: to avoid too many nested calc() operation, we have decided to compute directly the values in Sass
      $outline-width: 3px;
      $outline-offset: 1px;
      $shift: $outline-width + $outline-offset + 1px; // here 1px refers to "--token-form-radio-border-width"
      position: absolute;
      top: -$shift;
      right: -$shift;
      bottom: -$shift;
      left: -$shift;
      margin: auto;
      border-width: $outline-width;
      border-radius: calc(var(--token-form-toggle-height) / 2 + $outline-width + $outline-offset);
      content: "";
    }
  
    // STATUS
  
    // base (default)
  
    :not(:checked) + & {
      --border-color: var(--token-form-control-base-border-color-default);
      background-color: var(--token-form-toggle-base-surface-color-default); // this is specific for "toggle", is not like the other controls!
    }
  
    :checked + & {
      --border-color: var(--token-form-control-checked-border-color-default);
      background-color: var(--token-form-control-checked-surface-color-default);
  
      &::after {
        $translation: calc(var(--token-form-toggle-width) - var(--token-form-toggle-thumb-size));
        transform: translate3d($translation, 0, 0);
      }
    }
  
    // hover
  
    :hover:not(:checked) + &,
    .mock-hover:not(:checked) + & {
      --border-color: var(--token-form-control-base-border-color-hover);
    }
  
    :hover:checked + &,
    .mock-hover:checked + & {
      --border-color: var(--token-form-control-checked-border-color-hover);
      background-color: var(--token-form-control-checked-border-color-default);
    }
  
    // focus (same for all the states)
  
    :focus + &,
    .mock-focus + & {
      &::before {
        border-color: var(--token-color-focus-action-external);
        border-style: solid;
      }
    }
  
    // DISABLED
  
    :disabled:not(:checked) + &,
    :disabled:checked + & {
      --border-color: var(--token-form-control-disabled-border-color);
      background-color: var(--token-form-control-disabled-surface-color);
      background-image: var(--token-form-toggle-background-image-data-url-disabled);
    }
  }