import {
  cloneElement,
  isValidElement,
  useEffect,
  useId,
  useRef
} from 'react'
import PropTypes from 'prop-types'
import { useTooltipContext } from '../context/TooltipContext'

const mergeHandler = (original, next) => (event) => {
  next(event)
  original?.(event)
}

const Tooltip = ({ children, title, content }) => {
  const { showTooltip, hideTooltip } = useTooltipContext()
  const id = useId()
  const tooltipContent = title ?? content
  const hoveringRef = useRef(false)

  useEffect(() => {
    return () => hideTooltip(id)
  }, [hideTooltip, id])

  useEffect(() => {
    if (hoveringRef.current) {
      showTooltip(id, tooltipContent)
    }
  }, [id, showTooltip, tooltipContent])

  const onMouseEnter = (event) => {
    hoveringRef.current = true
    showTooltip(id, tooltipContent, event.clientX, event.clientY)
  }

  const onMouseLeave = () => {
    hoveringRef.current = false
    hideTooltip(id)
  }

  if (isValidElement(children)) {
    const trigger = cloneElement(children, {
      onMouseEnter: mergeHandler(children.props.onMouseEnter, onMouseEnter),
      onMouseLeave: mergeHandler(children.props.onMouseLeave, onMouseLeave)
    })

    if (children.props.disabled) {
      return (
        <span onMouseEnter={onMouseEnter} onMouseLeave={onMouseLeave}>
          {trigger}
        </span>
      )
    }

    return trigger
  }

  return (
    <span onMouseEnter={onMouseEnter} onMouseLeave={onMouseLeave}>
      {children}
    </span>
  )
}

Tooltip.propTypes = {
  children: PropTypes.node.isRequired,
  title: PropTypes.node,
  content: PropTypes.node
}

export default Tooltip