'use client'

import { useState, useEffect, useMemo } from 'react'
import { WordPopup } from '@/components/word/WordPopup'
import { useWordAnalysis } from '@/hooks/word/useWordAnalysis'
import type { ClickableTextProps, WordAnalysis } from '@/lib/types/word'

export function ClickableTextV2({
  text,
  analysis,
  onWordClick,
  onSaveWord,
  remainingUsage,
  showIdiomsInline = true
}: ClickableTextProps) {
  const [selectedWord, setSelectedWord] = useState<string | null>(null)
  const [isSavingWord, setIsSavingWord] = useState(false)
  const [mounted, setMounted] = useState(false)

  const { findWordAnalysis, getWordClass, shouldShowStar } = useWordAnalysis()

  useEffect(() => {
    setMounted(true)
  }, [])

  const handleWordClick = (word: string) => {
    const wordAnalysis = findWordAnalysis(word, analysis)
    if (wordAnalysis) {
      setSelectedWord(word)
      onWordClick?.(word, wordAnalysis)
    }
  }

  const closePopup = () => {
    setSelectedWord(null)
  }

  const handleSaveWord = async (word: string, wordAnalysis: WordAnalysis) => {
    if (!onSaveWord) return { success: false }

    setIsSavingWord(true)
    try {
      const result = await onSaveWord(word, wordAnalysis)
      if (result.success) {
        closePopup()
      }
      return result
    } finally {
      setIsSavingWord(false)
    }
  }

  const words = useMemo(() => {
    const tokens = text.split(/(\s+)/)
    return tokens.map((token, index) => {
      const cleanToken = token.replace(/[^\w']/g, '')
      if (!cleanToken || /^\s+$/.test(token)) {
        return (
          <span key={index} className="whitespace-pre">
            {token}
          </span>
        )
      }

      const wordAnalysis = findWordAnalysis(cleanToken, analysis)
      if (!wordAnalysis) {
        return (
          <span key={index} className="text-gray-900">
            {token}
          </span>
        )
      }

      return (
        <span key={index} className="relative">
          <span
            className={getWordClass(cleanToken, analysis)}
            onClick={() => handleWordClick(cleanToken)}
            role="button"
            tabIndex={0}
            onKeyDown={(e) => {
              if (e.key === 'Enter' || e.key === ' ') {
                handleWordClick(cleanToken)
              }
            }}
          >
            {token}
          </span>
          {shouldShowStar(wordAnalysis) && (
            <span className="absolute -top-1 -right-1 text-xs text-yellow-500">
              ⭐
            </span>
          )}
        </span>
      )
    })
  }, [text, analysis, findWordAnalysis, getWordClass, shouldShowStar])

  return (
    <div className="relative">
      <div className="text-lg leading-relaxed select-text">
        {words}
      </div>

      <WordPopup
        selectedWord={selectedWord}
        analysis={analysis || {}}
        isOpen={!!selectedWord && mounted}
        onClose={closePopup}
        onSaveWord={onSaveWord ? handleSaveWord : undefined}
        isSaving={isSavingWord}
      />
    </div>
  )
}