@use "uswds-core" as *;

// Variables
$triangle-size: 5px;

/// Create a spacer to increase target area for tooltip triangle.
///
/// @param {String} $direction - The direction of the tooltip; can be top, bottom, left, right.
///
/// @example
/// @include tooltip-spacer("top");
///
/// @output
/// .usa-tooltip__body--top::before {
///    top: 100%;
///    height: 5px;
///    left: 0;
///    right: 0;
///  }
@mixin tooltip-spacer($direction) {
  &::before {
    #{$direction}: 100%;

    @if ($direction == "left") or ($direction == "right") {
      bottom: 0;
      top: 0;
      width: $triangle-size;
    } @else {
      height: $triangle-size;
      left: 0;
      right: 0;
    }
  }
}

/* Tooltips */
.usa-tooltip {
  display: inline-block;
  position: relative;
}

.usa-tooltip__trigger {
  cursor: pointer;

  > svg {
    display: block;
    pointer-events: none;
  }
}

.usa-tooltip__body,
.usa-tooltip__body--top {
  transition: opacity 0.08s ease-in-out;
  background-color: color($theme-tooltip-background-color);
  border-radius: radius($theme-button-border-radius);
  color: color($theme-tooltip-font-color);
  display: none;
  font-size: size("ui", $theme-tooltip-font-size);
  opacity: 0; // Required for recalculating position.
  padding: units(1);
  width: auto;
  white-space: pre;
  z-index: 100000;
  position: absolute;
  /* positioning is completed with JS */

  &::after {
    content: "";
    display: block;
    width: 0;
    height: 0;
    border-left: $triangle-size solid transparent;
    border-right: $triangle-size solid transparent;
    border-top: $triangle-size solid color($theme-tooltip-background-color);
    position: absolute;
    bottom: -$triangle-size;
    left: 50%;
    margin-left: -$triangle-size;
  }

  // This pseudo element fills the gap between the tooltip trigger and body.
  // Filling this gap allows the tooltip to stay open when the pointer moves
  // from the tooltip trigger to the body.
  &::before {
    content: "";
    display: block;
    position: absolute;
  }
}

.usa-tooltip__body--wrap {
  width: 100%;
  white-space: normal;
  text-align: center;
  min-width: calc(100vw / 2);
}

.usa-tooltip__body.is-set {
  display: block;
}

.usa-tooltip__body.is-visible {
  opacity: 1;
}

.usa-tooltip__body--top {
  @include tooltip-spacer("top");
}

.usa-tooltip__body--bottom {
  @include tooltip-spacer("bottom");

  &::after {
    border-left: $triangle-size solid transparent;
    border-right: $triangle-size solid transparent;
    border-bottom: $triangle-size solid color($theme-tooltip-background-color);
    border-top: 0;
    bottom: auto;
    top: -$triangle-size;
  }
}

.usa-tooltip__body--right {
  @include tooltip-spacer("right");

  &::after {
    border-top: $triangle-size solid transparent;
    border-bottom: $triangle-size solid transparent;
    border-right: $triangle-size solid color($theme-tooltip-background-color);
    border-left: 0;
    right: auto;
    top: 50%;
    bottom: 0;
    left: -$triangle-size;
    margin: -$triangle-size 0 0 0;
  }
}

.usa-tooltip__body--left {
  @include tooltip-spacer("left");

  &::after {
    border-top: $triangle-size solid transparent;
    border-bottom: $triangle-size solid transparent;
    border-left: $triangle-size solid color($theme-tooltip-background-color);
    border-right: 0;
    right: -$triangle-size;
    top: 50%;
    bottom: 0;
    left: auto;
    margin: -$triangle-size 0 0 0;
  }
}