frontend/src/components/MetricInfoIcon.tsx

import React, { useRef, useEffect, useState } from 'react'
import { InformationCircleIcon, DocumentTextIcon } from '@heroicons/react/24/outline'
import { Tooltip as ReactTooltip } from 'react-tooltip'
import 'react-tooltip/dist/react-tooltip.css'
import Descriptions from '../Descriptions'

interface MetricInfoIconProps {
  metricName: string
}

const MetricInfoIcon: React.FC<MetricInfoIconProps> = ({ metricName }) => {
  const [descriptionsLoaded, setDescriptionsLoaded] = useState(false)
  const descriptions = useRef(Descriptions.getInstance())

  useEffect(() => {
    descriptions.current.load().then(() => setDescriptionsLoaded(true))
  }, [])

  const fullName = descriptions.current.getFullName(metricName) || metricName
  const description = descriptions.current.getDescription(metricName)
  const paperUrl = descriptions.current.getUrl(metricName)

  if (!description) return null

  return (
    <>
      <span
        className="ml-1 cursor-pointer"
        data-tooltip-id={`tooltip-metric-${metricName}`}
        tabIndex={0}
        aria-label={`Show info for ${metricName}`}
        role="button"
      >
        <InformationCircleIcon className="h-4 w-4 text-blue-400 hover:text-blue-600" />
      </span>
      <ReactTooltip
        id={`tooltip-metric-${metricName}`}
        place="top"
        className="z-[10000] max-w-xs !opacity-100 bg-base-100 text-base-content"
        style={{
          boxShadow: '0 0 10px rgba(0,0,0,0.2)',
          zIndex: 10000, // Ensure tooltips appear above sticky elements
        }}
        positionStrategy="fixed"
        clickable={true}
      >
        <div className="p-2 text-xs text-left relative z-[10000]">
          <div className="font-semibold mb-1">{fullName}</div>
          <div className="whitespace-pre-line mb-2">{description}</div>
          {paperUrl && (
            <div>
              <a
                href={paperUrl}
                target="_blank"
                rel="noopener noreferrer"
                className="text-blue-400 hover:text-blue-300 underline flex items-center"
              >
                <DocumentTextIcon className="h-3 w-3 mr-1" />
                Link
              </a>
            </div>
          )}
        </div>
      </ReactTooltip>
    </>
  )
}

export default MetricInfoIcon