// Copyright 2025 Signal Messenger, LLC
// SPDX-License-Identifier: AGPL-3.0-only

@use '../../mixins';
@use '../../variables';
@use './FunConstants.scss';

$scroller-mask: FunConstants.$Fun__BgColor;
$button-size: 32px;
$button-radius: 10px;
$icon-size: 20px;
$image-size: 26px;
$image-margin: calc(($button-size - $image-size) / 2);
$image-radius: $button-radius - $image-margin;

.FunSubNav__Container {
  min-width: 0;
  display: flex;
  align-items: center;
}

.FunSubNav__Scroller {
  position: relative;
  flex: 1;
  min-width: 0;

  &::before,
  &::after {
    content: '';
    z-index: 1;
    display: block;
    pointer-events: none;
    position: absolute;
    top: 0;
    width: 6px;
    height: 100%;
  }

  &::before {
    /* stylelint-disable-next-line liberty/use-logical-spec */
    left: 0;
    background: linear-gradient(to right, $scroller-mask 20%, transparent);
  }

  &::after {
    /* stylelint-disable-next-line liberty/use-logical-spec */
    right: 0;
    background: linear-gradient(to left, $scroller-mask 20%, transparent);
  }
}

.FunSubNav__ScrollerMask {
  content: '';
  z-index: 1;
  display: block;
  pointer-events: none;
  position: absolute;
  top: 0;
  width: 40px;
  height: 100%;
}

.FunSubNav__ScrollerMask--Left {
  /* stylelint-disable-next-line liberty/use-logical-spec */
  left: 0;
  background: linear-gradient(to right, $scroller-mask 20%, transparent);
}

.FunSubNav__ScrollerMask--Right {
  /* stylelint-disable-next-line liberty/use-logical-spec */
  right: 0;
  background: linear-gradient(to left, $scroller-mask 20%, transparent);
}

.FunSubNav__ScrollerViewport {
  position: relative;
  z-index: 0;
  overflow-x: auto;
  overflow-y: clip;
  scroll-behavior: smooth;
  scrollbar-width: none;
  scroll-padding: 100px;
  // Handled by .FunPicker__SubNavScroller
  outline: none;
}

.FunSubNav__ScrollerViewportInner {
  position: relative;
  display: inline flow-root;
}

.FunSubNav__Buttons {
  display: flex;
  padding-block: 6px;
  z-index: 1;

  &:first-of-type {
    padding-inline-start: 6px;
  }

  &:last-of-type {
    padding-inline-end: 6px;
  }
}

.FunSubNav__Button {
  @include mixins.button-reset();
  & {
    position: relative;
    display: flex;
    flex-shrink: 0;
    width: $button-size;
    height: $button-size;
    background: transparent;
    border-radius: $button-radius;
    align-items: center;
    justify-content: center;
  }

  &:hover {
    background: light-dark(variables.$color-gray-02, variables.$color-gray-78);
  }

  &:focus {
    outline: none;
    @include mixins.keyboard-mode {
      outline: 2px solid variables.$color-ultramarine;
    }
  }
}

.FunSubNav__ListBox {
  display: flex;
  padding-block: 6px;
  flex: 1;
}

.FunSubNav__ListBoxItem {
  flex: 1;
  padding: 1px;
  cursor: pointer;

  &:focus {
    // Handled by .FunSubNav__ListBoxItem__ButtonIndicator
    outline: none;
  }

  &:first-of-type {
    padding-inline-start: 6px;
  }

  &:last-of-type {
    padding-inline-end: 6px;
  }
}

.FunSubNav__ListBoxItem__Button {
  position: relative;
  display: flex;
  width: $button-size;
  height: $button-size;
  background: transparent;
  border-radius: $button-radius;
  align-items: center;
  justify-content: center;

  .FunSubNav__ListBoxItem:hover & {
    background: light-dark(variables.$color-gray-02, variables.$color-gray-78);
  }
}

.FunSubNav__ListBoxItem__ButtonIndicator {
  z-index: 0;
  position: absolute;
  border-radius: $button-radius;
  top: 0;
  inset-inline-start: 0;
  width: 100%;
  height: 100%;
  background: light-dark(variables.$color-gray-05, variables.$color-gray-60);

  .FunSubNav__ListBoxItem[data-focused='true'] & {
    outline: none;
    @include mixins.keyboard-mode {
      outline: 2px solid variables.$color-ultramarine;
    }
  }
}

.FunSubNav__ListBoxItem__ButtonIcon {
  position: relative;
  z-index: 1;
}

.FunSubNav__Icon {
  width: $icon-size;
  height: $icon-size;
}

@mixin icon($svg) {
  @include mixins.color-svg(
    $svg,
    light-dark(variables.$color-black-alpha-50, variables.$color-white-alpha-50)
  );
}

/* Shared */
.FunSubNav__Icon--Recents {
  @include icon('../images/icons/v3/recent/recent.svg');
}

/* Emoji */
.FunSubNav__Icon--SmileysAndPeople {
  @include icon('../images/icons/v3/emoji/emoji.svg');
}
.FunSubNav__Icon--AnimalsAndNature {
  @include icon('../images/icons/v3/emoji/emoji-animal.svg');
}
.FunSubNav__Icon--FoodAndDrink {
  @include icon('../images/icons/v3/emoji/emoji-food.svg');
}
.FunSubNav__Icon--Activities {
  @include icon('../images/icons/v3/emoji/emoji-activity.svg');
}
.FunSubNav__Icon--TravelAndPlaces {
  @include icon('../images/icons/v3/emoji/emoji-travel.svg');
}
.FunSubNav__Icon--Objects {
  @include icon('../images/icons/v3/emoji/emoji-object.svg');
}
.FunSubNav__Icon--Symbols {
  @include icon('../images/icons/v3/emoji/emoji-symbol.svg');
}
.FunSubNav__Icon--Flags {
  @include icon('../images/icons/v3/emoji/emoji-flag.svg');
}
/* Stickers */
.FunSubNav__Icon--Plus {
  @include icon('../images/icons/v3/plus/plus-circle.svg');
}
/* GIFs */
.FunSubNav__Icon--Trending {
  @include icon('../images/icons/v3/trending/trending.svg');
}
.FunSubNav__Icon--Celebrate {
  @include icon('../images/icons/v3/emoji/emoji-celebrate.svg');
}
.FunSubNav__Icon--Love {
  @include icon('../images/icons/v3/heart/heart.svg');
}
.FunSubNav__Icon--ThumbsUp {
  @include icon('../images/icons/v3/emoji/emoji-thumbs_up.svg');
}
.FunSubNav__Icon--Surprised {
  @include icon('../images/icons/v3/emoji/emoji-surprised.svg');
}
.FunSubNav__Icon--Excited {
  @include icon('../images/icons/v3/emoji/emoji-excited.svg');
}
.FunSubNav__Icon--Sad {
  @include icon('../images/icons/v3/emoji/emoji-sad.svg');
}
.FunSubNav__Icon--Angry {
  @include icon('../images/icons/v3/emoji/emoji-angry.svg');
}

.FunSubNav__Image {
  width: $image-size;
  height: $image-size;
  border-radius: $image-radius;
  transform: scale(100%);
  transition: transform 200ms ease;

  .FunSubNav__ListBoxItem[data-selected='true'] & {
    transform: scale(90%);
  }
}