@use "../utilities/css-variables" as cv;
@use "../utilities/initial-variables" as iv;
@use "../utilities/derived-variables" as dv;
@use "../utilities/extends";
@use "../utilities/mixins" as mx;

$pagination-margin: -0.25rem !default;
$pagination-min-width: cv.getVar("control-height") !default;

$pagination-item-h: cv.getVar("scheme-h");
$pagination-item-s: cv.getVar("scheme-s");
$pagination-item-l: cv.getVar("scheme-main-l");
$pagination-item-background-l-delta: 0%;
$pagination-item-hover-background-l-delta: cv.getVar(
  "hover-background-l-delta"
);
$pagination-item-active-background-l-delta: cv.getVar(
  "active-background-l-delta"
);
$pagination-item-border-l: cv.getVar("border-l");
$pagination-item-border-l-delta: 0%;
$pagination-item-border-style: solid !default;
$pagination-item-border-width: cv.getVar("control-border-width") !default;
$pagination-item-hover-border-l-delta: cv.getVar("hover-border-l-delta");
$pagination-item-active-border-l-delta: cv.getVar("active-border-l-delta");
$pagination-item-focus-border-l-delta: cv.getVar("focus-border-l-delta");
$pagination-item-color-l: cv.getVar("text-strong-l");
$pagination-item-font-size: 1em !default;
$pagination-item-margin: 0.25rem !default;
$pagination-item-padding-left: 0.5em !default;
$pagination-item-padding-right: 0.5em !default;
$pagination-item-outer-shadow-h: 0;
$pagination-item-outer-shadow-s: 0%;
$pagination-item-outer-shadow-l: 20%;
$pagination-item-outer-shadow-a: 0.05;

$pagination-selected-item-h: cv.getVar("link-h");
$pagination-selected-item-s: cv.getVar("link-s");
$pagination-selected-item-l: cv.getVar("link-l");
$pagination-selected-item-background-l: cv.getVar("link-l");
$pagination-selected-item-border-l: cv.getVar("link-l");
$pagination-selected-item-color-l: cv.getVar("link-invert-l");

$pagination-nav-padding-left: 0.75em !default;
$pagination-nav-padding-right: 0.75em !default;

$pagination-disabled-color: cv.getVar("text-weak") !default;
$pagination-disabled-background-color: cv.getVar("border") !default;
$pagination-disabled-border-color: cv.getVar("border") !default;

$pagination-current-color: cv.getVar("link-invert") !default;
$pagination-current-background-color: cv.getVar("link") !default;
$pagination-current-border-color: cv.getVar("link") !default;

$pagination-ellipsis-color: cv.getVar("text-weak") !default;

$pagination-shadow-inset: inset 0 0.0625em 0.125em
  hsla(
    #{cv.getVar("scheme-h")},
    #{cv.getVar("scheme-s")},
    #{cv.getVar("scheme-invert-l")},
    0.2
  ) !default;

.#{iv.$class-prefix}pagination {
  @include cv.register-vars(
    (
      "pagination-margin": #{$pagination-margin},
      "pagination-min-width": #{$pagination-min-width},
      "pagination-item-h": #{$pagination-item-h},
      "pagination-item-s": #{$pagination-item-s},
      "pagination-item-l": #{$pagination-item-l},
      "pagination-item-background-l-delta": #{$pagination-item-background-l-delta},
      "pagination-item-hover-background-l-delta": #{$pagination-item-hover-background-l-delta},
      "pagination-item-active-background-l-delta": #{$pagination-item-active-background-l-delta},
      "pagination-item-border-style": #{$pagination-item-border-style},
      "pagination-item-border-width": #{$pagination-item-border-width},
      "pagination-item-border-l": #{$pagination-item-border-l},
      "pagination-item-border-l-delta": #{$pagination-item-border-l-delta},
      "pagination-item-hover-border-l-delta": #{$pagination-item-hover-border-l-delta},
      "pagination-item-active-border-l-delta": #{$pagination-item-active-border-l-delta},
      "pagination-item-focus-border-l-delta": #{$pagination-item-focus-border-l-delta},
      "pagination-item-color-l": #{$pagination-item-color-l},
      "pagination-item-font-size": #{$pagination-item-font-size},
      "pagination-item-margin": #{$pagination-item-margin},
      "pagination-item-padding-left": #{$pagination-item-padding-left},
      "pagination-item-padding-right": #{$pagination-item-padding-right},
      "pagination-item-outer-shadow-h": #{$pagination-item-outer-shadow-h},
      "pagination-item-outer-shadow-s": #{$pagination-item-outer-shadow-s},
      "pagination-item-outer-shadow-l": #{$pagination-item-outer-shadow-l},
      "pagination-item-outer-shadow-a": #{$pagination-item-outer-shadow-a},
      "pagination-nav-padding-left": #{$pagination-nav-padding-left},
      "pagination-nav-padding-right": #{$pagination-nav-padding-right},
      "pagination-disabled-color": #{$pagination-disabled-color},
      "pagination-disabled-background-color": #{$pagination-disabled-background-color},
      "pagination-disabled-border-color": #{$pagination-disabled-border-color},
      "pagination-current-color": #{$pagination-current-color},
      "pagination-current-background-color": #{$pagination-current-background-color},
      "pagination-current-border-color": #{$pagination-current-border-color},
      "pagination-ellipsis-color": #{$pagination-ellipsis-color},
      "pagination-shadow-inset": #{$pagination-shadow-inset},
      "pagination-selected-item-h": #{$pagination-selected-item-h},
      "pagination-selected-item-s": #{$pagination-selected-item-s},
      "pagination-selected-item-l": #{$pagination-selected-item-l},
      "pagination-selected-item-background-l": #{$pagination-selected-item-background-l},
      "pagination-selected-item-border-l": #{$pagination-selected-item-border-l},
      "pagination-selected-item-color-l": #{$pagination-selected-item-color-l},
    )
  );
}

.#{iv.$class-prefix}pagination {
  @extend %block;

  font-size: cv.getVar("size-normal");
  margin: cv.getVar("pagination-margin");

  // Sizes
  &.#{iv.$class-prefix}is-small {
    font-size: cv.getVar("size-small");
  }

  &.#{iv.$class-prefix}is-medium {
    font-size: cv.getVar("size-medium");
  }

  &.#{iv.$class-prefix}is-large {
    font-size: cv.getVar("size-large");
  }

  &.#{iv.$class-prefix}is-rounded {
    .#{iv.$class-prefix}pagination-previous,
    .#{iv.$class-prefix}pagination-next {
      padding-left: 1em;
      padding-right: 1em;
      border-radius: cv.getVar("radius-rounded");
    }

    .#{iv.$class-prefix}pagination-link {
      border-radius: cv.getVar("radius-rounded");
    }
  }
}

.#{iv.$class-prefix}pagination,
.#{iv.$class-prefix}pagination-list {
  align-items: center;
  display: flex;
  justify-content: center;
  text-align: center;
}

.#{iv.$class-prefix}pagination-previous,
.#{iv.$class-prefix}pagination-next,
.#{iv.$class-prefix}pagination-link,
.#{iv.$class-prefix}pagination-ellipsis {
  @extend %control;
  @extend %unselectable;
  color: hsl(
    #{cv.getVar("pagination-item-h")},
    #{cv.getVar("pagination-item-s")},
    #{cv.getVar("pagination-item-color-l")}
  );
  font-size: cv.getVar("pagination-item-font-size");
  justify-content: center;
  margin: cv.getVar("pagination-item-margin");
  padding-left: cv.getVar("pagination-item-padding-left");
  padding-right: cv.getVar("pagination-item-padding-right");
  text-align: center;
}

.#{iv.$class-prefix}pagination-previous,
.#{iv.$class-prefix}pagination-next,
.#{iv.$class-prefix}pagination-link {
  background-color: hsl(
    #{cv.getVar("pagination-item-h")},
    #{cv.getVar("pagination-item-s")},
    calc(
      #{cv.getVar("pagination-item-background-l")} + #{cv.getVar(
          "pagination-item-background-l-delta"
        )}
    )
  );
  border-color: hsl(
    #{cv.getVar("pagination-item-h")},
    #{cv.getVar("pagination-item-s")},
    calc(
      #{cv.getVar("pagination-item-border-l")} + #{cv.getVar(
          "pagination-item-border-l-delta"
        )}
    )
  );
  border-style: cv.getVar("pagination-item-border-style");
  border-width: cv.getVar("pagination-item-border-width");
  box-shadow:
    0px 0.0625em 0.125em
      hsla(
        cv.getVar("pagination-item-outer-shadow-h"),
        cv.getVar("pagination-item-outer-shadow-s"),
        cv.getVar("pagination-item-outer-shadow-l"),
        cv.getVar("pagination-item-outer-shadow-a")
      ),
    0px 0.125em 0.25em
      hsla(
        cv.getVar("pagination-item-outer-shadow-h"),
        cv.getVar("pagination-item-outer-shadow-s"),
        cv.getVar("pagination-item-outer-shadow-l"),
        cv.getVar("pagination-item-outer-shadow-a")
      );
  color: hsl(
    #{cv.getVar("pagination-item-h")},
    #{cv.getVar("pagination-item-s")},
    #{cv.getVar("pagination-item-color-l")}
  );
  min-width: cv.getVar("pagination-min-width");
  transition-duration: cv.getVar("duration");
  transition-property: background-color, border-color, box-shadow, color;

  &:hover {
    @include cv.register-vars(
      (
        "pagination-item-background-l-delta": #{cv.getVar(
            "pagination-item-hover-background-l-delta"
          )},
        "pagination-item-border-l-delta": #{cv.getVar(
            "pagination-item-hover-border-l-delta"
          )},
      )
    );
  }

  &:focus {
    @include cv.register-vars(
      (
        "pagination-item-background-l-delta": #{cv.getVar(
            "pagination-item-hover-background-l-delta"
          )},
        "pagination-item-border-l-delta": #{cv.getVar(
            "pagination-item-hover-border-l-delta"
          )},
      )
    );
  }

  &:active {
    box-shadow: cv.getVar("pagination-shadow-inset");
  }

  &[disabled],
  &.#{iv.$class-prefix}is-disabled {
    background-color: cv.getVar("pagination-disabled-background-color");
    border-color: cv.getVar("pagination-disabled-border-color");
    box-shadow: none;
    color: cv.getVar("pagination-disabled-color");
    opacity: 0.5;
  }
}

.#{iv.$class-prefix}pagination-previous,
.#{iv.$class-prefix}pagination-next {
  padding-left: cv.getVar("pagination-nav-padding-left");
  padding-right: cv.getVar("pagination-nav-padding-right");
  white-space: nowrap;
}

.#{iv.$class-prefix}pagination-link {
  &.#{iv.$class-prefix}is-current,
  &.#{iv.$class-prefix}is-selected {
    @include cv.register-vars(
      (
        "pagination-item-h": #{cv.getVar("pagination-selected-item-h")},
        "pagination-item-s": #{cv.getVar("pagination-selected-item-s")},
        "pagination-item-l": #{cv.getVar("pagination-selected-item-l")},
        "pagination-item-background-l": #{cv.getVar(
            "pagination-selected-item-background-l"
          )},
        "pagination-item-border-l": #{cv.getVar(
            "pagination-selected-item-border-l"
          )},
        "pagination-item-color-l": #{cv.getVar(
            "pagination-selected-item-color-l"
          )},
      )
    );
  }
}

.#{iv.$class-prefix}pagination-ellipsis {
  color: cv.getVar("pagination-ellipsis-color");
  pointer-events: none;
}

.#{iv.$class-prefix}pagination-list {
  flex-wrap: wrap;

  li {
    list-style: none;
  }
}

@include mx.mobile {
  .#{iv.$class-prefix}pagination {
    flex-wrap: wrap;
  }

  .#{iv.$class-prefix}pagination-previous,
  .#{iv.$class-prefix}pagination-next {
    flex-grow: 1;
    flex-shrink: 1;
  }

  .#{iv.$class-prefix}pagination-list {
    li {
      flex-grow: 1;
      flex-shrink: 1;
    }
  }
}

@include mx.tablet {
  .#{iv.$class-prefix}pagination-list {
    flex-grow: 1;
    flex-shrink: 1;
    justify-content: flex-start;
    order: 1;
  }

  .#{iv.$class-prefix}pagination-previous,
  .#{iv.$class-prefix}pagination-next,
  .#{iv.$class-prefix}pagination-link,
  .#{iv.$class-prefix}pagination-ellipsis {
    margin-bottom: 0;
    margin-top: 0;
  }

  .#{iv.$class-prefix}pagination-previous {
    order: 2;
  }

  .#{iv.$class-prefix}pagination-next {
    order: 3;
  }

  .#{iv.$class-prefix}pagination {
    justify-content: space-between;
    margin-bottom: 0;
    margin-top: 0;

    &.#{iv.$class-prefix}is-centered {
      .#{iv.$class-prefix}pagination-previous {
        order: 1;
      }

      .#{iv.$class-prefix}pagination-list {
        justify-content: center;
        order: 2;
      }

      .#{iv.$class-prefix}pagination-next {
        order: 3;
      }
    }

    &.#{iv.$class-prefix}is-right {
      .#{iv.$class-prefix}pagination-previous {
        order: 1;
      }

      .#{iv.$class-prefix}pagination-next {
        order: 2;
      }

      .#{iv.$class-prefix}pagination-list {
        justify-content: flex-end;
        order: 3;
      }
    }
  }
}