import React , { useRef , useEffect , useState } from "react" ; import styled , { css , CSSProp } from "styled-components" ; type PLACEMENTS = "top" | "left" | "bottom" | "right" | "bottom-left" | "top-left" ; const caret = css `
  position: absolute;
  content: "";
  width: 0;
  height: 0;
` ; const centerV = css `
  top: 50%;
  transform: translateY(-50%);
` ; const centerH = css `
  left: 50%;
  transform: translateX(-50%);
` ; const fourCarets = { top : css `
    ${ caret };
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid ${ p => p . theme . colors . gray };
    top: 100%;
  ` , bottom : css `
    ${ caret };
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-bottom: 5px solid ${ p => p . theme . colors . gray };
    bottom: 100%;
  ` , left : css `
    ${ caret };
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;
    border-left: 5px solid ${ p => p . theme . colors . gray };
    left: 100%;
  ` , right : css `
    ${ caret };
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;
    border-right: 5px solid ${ p => p . theme . colors . gray };
    right: 100%;
  ` , } ; const carets = { ... fourCarets , "bottom-left" : css `
    ${ caret };
    ${ fourCarets . bottom };
  ` , "top-left" : css `
    ${ caret };
    ${ fourCarets . top };
  ` , } ; const placements = { top : css `
    bottom: 100%;
    margin-bottom: 5px;
    ${ centerH };
    &:before {
      ${ carets . top };
      ${ centerH };
    }
  ` , bottom : css `
    top: 100%;
    margin-top: 5px;
    ${ centerH };
    &:before {
      ${ carets . bottom };
      ${ centerH };
    }
  ` , left : css `
    top: 50%;
    right: 100%;
    transform: translateY(-50%);
    margin-right: 5px;
    ${ centerV };
    &:before {
      ${ carets . left };
      ${ centerV };
    }
  ` , right : css `
    left: 100%;
    margin-left: 5px;
    ${ centerV };
    &:before {
      ${ carets . right };
      ${ centerV };
    }
  ` , "bottom-left" : css `
    top: 100%;
    margin-top: 5px;
    right: 0;
    &:before {
      ${ carets . bottom };
      right: 10px;
    }
  ` , "top-left" : css `
    bottom: 100%;
    margin-bottom: 5px;
    right: 0;
    &:before {
      ${ carets . top };
      right: 10px;
    }
  ` , } ; const TooltipStyles = styled . div < { placement : PLACEMENTS ; } > `
  position: relative;
  width: fit-content;

  .tooltip__trigger:hover + .tooltip__message {
    opacity: 1;
    transition-delay: 0.3s;
  }

  .tooltip__message {
    position: absolute;
    width: fit-content;
    padding: 5px 10px;
    font-size: 12px;
    white-space: pre;
    background-color: ${ p => p . theme . colors . dark2 };
    border: 1px solid ${ p => p . theme . colors . gray };
    border-radius: ${ p => p . theme . radius . small }px;
    opacity: 0;
    transition: 0.2s;
    pointer-events: none;
    z-index: 1;

    ${ p => ( placements as any ) [ p . placement as any ] };
  }
` ; interface ITooltip { message : React . ReactNode ; placement ? : PLACEMENTS ; } export const Tooltip = ( { children , message , placement = "top" , } ) => { const [ position , setPosition ] = useState < PLACEMENTS > ( placement ) ; const contentRef = useRef < HTMLDivElement > ( ) ; const calculateBounds = ( ) => { if ( contentRef . current ) { const bounds = contentRef . current . getBoundingClientRect ( ) ; if ( bounds . left < 5 ) setPosition ( "right" ) ; if ( bounds . top < 5 ) setPosition ( "bottom" ) ; if ( bounds . right > window . innerWidth ) setPosition ( "left" ) ; if ( bounds . bottom > window . innerHeight ) setPosition ( "top" ) ; } } ; useEffect ( ( ) => { calculateBounds ( ) ; } , [ ] ) ; return ( < TooltipStyles placement = { position } > < div className = "tooltip__trigger" > { children } < /div> < div className = "tooltip__message" ref = { contentRef } > { message } < /div> < /TooltipStyles>); } ; export default Tooltip ;