@import '../../styles/vars';

$psv-gallery-padding: 15px !default;
$psv-gallery-border: 1px solid $psv-caption-color !default;
$psv-gallery-background: $psv-navbar-background !default;
$psv-gallery-item-radius: 5px !default;
$psv-gallery-item-active-border: 3px solid white !default;
$psv-gallery-title-font: $psv-caption-font !default;
$psv-gallery-title-color: $psv-caption-color !default;
$psv-gallery-title-background: rgba(0, 0, 0, .6) !default;
$psv-gallery-thumb-hover-scale: 1.2 !default;

.psv-gallery {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  background: $psv-gallery-background;
  border-bottom: $psv-gallery-border;
  overflow-x: auto;
  overflow-y: hidden;
  transition: transform ease-in-out .1s;
  transform: translateY(100%);
  z-index: $psv-navbar-zindex;

  @at-root .psv--has-navbar & {
    bottom: $psv-navbar-height;
    transform: translateY(calc(100% + #{$psv-navbar-height}));
  }

  &--open {
    transform: translateY(0) !important;
  }

  &-container {
    display: flex;
    padding: $psv-gallery-padding;
  }

  &-item {
    flex: none;
    position: relative;
    margin-right: $psv-gallery-padding;
    border-radius: $psv-gallery-item-radius;
    overflow: hidden;
    cursor: pointer;

    &-wrapper {
      width: 100%;
      height: 0;
    }

    &-title {
      position: absolute;
      top: 0;
      left: 0;
      display: flex;
      justify-content: center;
      align-items: flex-start;
      box-sizing: border-box;
      width: 100%;
      height: 2.2em;
      padding: .5em;
      background: $psv-gallery-title-background;
      font: $psv-gallery-title-font;
      line-height: 1.2em;
      color: $psv-gallery-title-color;
      z-index: 2;
      transition: height ease-in-out .2s;

      span {
        white-space: nowrap;
        text-overflow: ellipsis;
        overflow: hidden;
        user-select: none;
      }
    }

    &-thumb {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-position: center center;
      background-size: cover;
      transform: scale3d(1, 1, 1);
      transition: transform ease-in-out .2s;
      z-index: 1;
    }

    &:hover &-title {
      height: 100%;

      span {
        white-space: normal;
      }
    }

    &:hover &-thumb {
      transform: scale3d($psv-gallery-thumb-hover-scale, $psv-gallery-thumb-hover-scale, 1);
    }

    &--active::after {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      box-sizing: border-box;
      border: $psv-gallery-item-active-border;
      z-index: 3;
    }
  }

  @media screen and (max-width: 500px) {
    top: 0;
    overflow-x: hidden;
    overflow-y: auto;

    &-container {
      flex-wrap: wrap;
      margin-right: -$psv-gallery-padding;
    }

    &-item {
      width: calc(50% - #{$psv-gallery-padding}) !important;
      margin-bottom: $psv-gallery-padding;
    }
  }
}