@use 'sass:map';
@use 'sass:string';

//
// Base styles
//

@use '../../config' as *;

// Addon tokens, in the names Bootstrap 6 uses. The addon sits next to the
// control, not inside it, so it reads the `:root` scale rather than the
// control's own `--control-*` tokens.
.input-group {
  // scss-docs-start input-group-css-vars
  --input-group-addon-padding-y: #{var-if-default($input-group-addon-padding-y, $input-btn-padding-y, '--btn-input-padding-y')};
  --input-group-addon-padding-x: #{var-if-default($input-group-addon-padding-x, $input-btn-padding-x, '--btn-input-padding-x')};
  @include rfs(var-if-default($input-font-size, $input-btn-font-size, '--btn-input-font-size'), --input-group-addon-font-size);
  --input-group-addon-line-height: #{var-if-default($input-line-height, $input-btn-line-height, '--btn-input-line-height')};
  --input-group-addon-color: #{$input-group-addon-color};
  --input-group-addon-bg: #{$input-group-addon-bg};
  --input-group-addon-border-color: #{$input-group-addon-border-color};
  --input-group-addon-border-radius: #{var-if-default($input-border-radius, var(--border-radius), '--btn-input-border-radius')};
  // scss-docs-end input-group-css-vars

  position: relative;
  display: flex;
  flex-wrap: wrap; // For form validation feedback
  align-items: stretch;
  width: 100%;

  > .form-control,
  > .form-select,
  > .form-floating {
    position: relative; // For focus state's z-index
    flex: 1 1 auto;
    width: 1%;
    min-width: 0; // https://stackoverflow.com/questions/36247140/why-dont-flex-items-shrink-past-content-size
  }

  // Bring the "active" form control to the top of surrounding elements
  > .form-control:focus,
  > .form-select:focus,
  > .form-floating:focus-within {
    z-index: 5;
  }

  // Ensure buttons are always above inputs for more visually pleasing borders.
  // This isn't needed for `.input-group-text` since it shares the same border-color
  // as our inputs.
  .btn {
    position: relative;
    z-index: 2;

    &:focus {
      z-index: 5;
    }
  }
}

// Textual addons
//
// Serves as a catch-all element for any text or radio/checkbox input you wish
// to prepend or append to an input.

.input-group-text {
  display: flex;
  align-items: center;
  padding: var(--input-group-addon-padding-y) var(--input-group-addon-padding-x);
  @include font-size(var(--input-group-addon-font-size)); // Match inputs
  font-weight: $input-group-addon-font-weight;
  line-height: var(--input-group-addon-line-height);
  color: var(--input-group-addon-color);
  text-align: center;
  white-space: nowrap;
  background-color: var(--input-group-addon-bg);
  border: $input-border-width solid var(--input-group-addon-border-color);
  @include border-radius(var(--input-group-addon-border-radius));
}

// Sizing
//
// A size moves the addon and control tokens; the button keeps its own rules
// until `.btn` reads the scale too.

@mixin -input-group-size($size) {
  --input-group-addon-padding-y: #{var-if-default(map.get($-input-group-sizes, $size, 'padding-y'), map.get($-input-group-sizes, $size, 'scale-padding-y'), '--btn-input-#{$size}-padding-y')};
  --input-group-addon-padding-x: #{var-if-default(map.get($-input-group-sizes, $size, 'padding-x'), map.get($-input-group-sizes, $size, 'scale-padding-x'), '--btn-input-#{$size}-padding-x')};
  @include rfs(var-if-default(map.get($-input-group-sizes, $size, 'font-size'), map.get($-input-group-sizes, $size, 'scale-font-size'), '--btn-input-#{$size}-font-size'), --input-group-addon-font-size);
  --input-group-addon-line-height: #{var-if-default(map.get($-input-group-sizes, $size, 'line-height'), map.get($-input-group-sizes, $size, 'scale-line-height'), '--btn-input-#{$size}-line-height')};
  --input-group-addon-border-radius: #{var-if-default(map.get($-input-group-sizes, $size, 'border-radius'), map.get($-input-group-sizes, $size, 'scale-border-radius'), '--btn-input-#{$size}-border-radius')};

  > .form-control,
  > .form-select {
    --control-padding-y: var(--input-group-addon-padding-y);
    --control-padding-x: var(--input-group-addon-padding-x);
    --control-font-size: var(--input-group-addon-font-size);
    --control-line-height: var(--input-group-addon-line-height);
    --control-border-radius: var(--input-group-addon-border-radius);
    min-height: var(--control-min-height);
  }

  > .form-select {
    padding-inline-end: calc(#{var-if-default($form-select-padding-x, $input-btn-padding-x, '--btn-input-padding-x')} + var(--control-select-indicator-padding));
  }

  > .btn {
    line-height: map.get($-input-group-sizes, $size, 'line-height');
    min-height: map.get($-input-group-sizes, $size, 'height');
    padding: map.get($-input-group-sizes, $size, 'padding-y') map.get($-input-group-sizes, $size, 'padding-x');
    @include font-size(map.get($-input-group-sizes, $size, 'font-size'));
    @include border-radius(map.get($-input-group-sizes, $size, 'border-radius'));
  }
}

$-input-group-sizes: (
  'sm': (
    'padding-y': $input-padding-y-sm,
    'padding-x': $input-padding-x-sm,
    'font-size': $input-font-size-sm,
    'line-height': $input-line-height-sm,
    'border-radius': $input-border-radius-sm,
    'height': $input-height-sm,
    'scale-padding-y': $input-btn-padding-y-sm,
    'scale-padding-x': $input-btn-padding-x-sm,
    'scale-font-size': $input-btn-font-size-sm,
    'scale-line-height': $input-btn-line-height-sm,
    'scale-border-radius': var(--border-radius-sm),
  ),
  'lg': (
    'padding-y': $input-padding-y-lg,
    'padding-x': $input-padding-x-lg,
    'font-size': $input-font-size-lg,
    'line-height': $input-line-height-lg,
    'border-radius': $input-border-radius-lg,
    'height': $input-height-lg,
    'scale-padding-y': $input-btn-padding-y-lg,
    'scale-padding-x': $input-btn-padding-x-lg,
    'scale-font-size': $input-btn-font-size-lg,
    'scale-line-height': $input-btn-line-height-lg,
    'scale-border-radius': var(--border-radius-lg),
  ),
);

.input-group-lg {
  @include -input-group-size('lg');
}

.input-group-sm {
  @include -input-group-size('sm');
}

// Rounded corners
//
// These rulesets must come after the sizing ones to properly override sm and lg
// border-radius values when extending. They're more specific than we'd like
// with the `.input-group >` part, but without it, we cannot override the sizing.

// stylelint-disable-next-line no-duplicate-selectors
.input-group {
  &:not(.has-validation) {
    > :not(:last-child):not(.dropdown-toggle):not(.dropdown-menu):not(.form-floating),
    > .dropdown-toggle:nth-last-child(n + 3),
    > .form-floating:not(:last-child) > .form-control,
    > .form-floating:not(:last-child) > .form-select {
      @include border-end-radius(0);
    }
  }

  &.has-validation {
    > :nth-last-child(n + 3):not(.dropdown-toggle):not(.dropdown-menu):not(.form-floating),
    > .dropdown-toggle:nth-last-child(n + 4),
    > .form-floating:nth-last-child(n + 3) > .form-control,
    > .form-floating:nth-last-child(n + 3) > .form-select {
      @include border-end-radius(0);
    }
  }

  $validation-messages: '';
  @each $state in map.keys($form-validation-states) {
    $validation-messages: $validation-messages + ':not(.' + string.unquote($state) + '-tooltip)' + ':not(.' + string.unquote($state) + '-feedback)';
  }

  > :not(:first-child):not(.dropdown-menu)#{$validation-messages} {
    margin-inline-start: calc(-1 * #{$input-border-width}); // stylelint-disable-line function-disallowed-list
    @include border-start-radius(0);
  }

  > .form-floating:not(:first-child) > .form-control,
  > .form-floating:not(:first-child) > .form-select {
    @include border-start-radius(0);
  }
}