'use client'

import { useState, useEffect } from 'react'
import { Navigation } from '@/components/Navigation'
import {
  FlipMemoryTest,
  VocabChoiceTest,
  SentenceFillTest,
  SentenceReorderTest,
  VocabListeningTest,
  SentenceListeningTest,
  SentenceSpeakingTest
} from '@/components/review/review-tests'
import exampleData from './example-data.json'

export default function ReviewTestsPage() {
  const [logs, setLogs] = useState<string[]>([])
  const [activeTab, setActiveTab] = useState('FlipMemoryTest')
  const [currentCardIndex, setCurrentCardIndex] = useState(0)

  // 測驗組件清單
  const testComponents = [
    { id: 'FlipMemoryTest', name: '翻卡記憶測試', color: 'bg-blue-50' },
    { id: 'VocabChoiceTest', name: '詞彙選擇測試', color: 'bg-green-50' },
    { id: 'SentenceFillTest', name: '句子填空測試', color: 'bg-yellow-50' },
    { id: 'SentenceReorderTest', name: '句子重排測試', color: 'bg-purple-50' },
    { id: 'VocabListeningTest', name: '詞彙聽力測試', color: 'bg-red-50' },
    { id: 'SentenceListeningTest', name: '句子聽力測試', color: 'bg-indigo-50' },
    { id: 'SentenceSpeakingTest', name: '句子口說測試', color: 'bg-pink-50' }
  ]

  // 添加日誌函數
  const addLog = (message: string) => {
    const timestamp = new Date().toLocaleTimeString()
    setLogs(prev => [`[${activeTab}] [${timestamp}] ${message}`, ...prev.slice(0, 9)])
  }

  // 從 API 響應格式獲取當前卡片資料
  const flashcardsData = exampleData.data || []
  const currentCard = flashcardsData[currentCardIndex] || flashcardsData[0]

  // 轉換為組件所需格式
  const mockCardData = currentCard ? {
    word: currentCard.word,
    definition: currentCard.definition,
    example: currentCard.example,
    filledQuestionText: currentCard.filledQuestionText,
    exampleTranslation: currentCard.exampleTranslation,
    pronunciation: currentCard.pronunciation,
    difficultyLevel: currentCard.difficultyLevel,
    translation: currentCard.translation,
    // 從 flashcardExampleImages 提取圖片URL
    exampleImage: currentCard.flashcardExampleImages?.[0]?.exampleImage ?
      `http://localhost:5008/images/examples/${currentCard.flashcardExampleImages[0].exampleImage.relativePath}` :
      undefined
  } : {
    word: "loading...",
    definition: "Loading...",
    example: "Loading...",
    filledQuestionText: undefined,
    exampleTranslation: "載入中...",
    pronunciation: "",
    difficultyLevel: "A1",
    translation: "載入中",
    exampleImage: undefined
  }

  // 選項題選項 - 從資料中生成
  const generateVocabChoiceOptions = () => {
    if (!currentCard) return ["loading"]
    const correctAnswer = currentCard.word
    const otherWords = flashcardsData
      .filter(card => card.word !== correctAnswer)
      .slice(0, 3)
      .map(card => card.word)
    return [correctAnswer, ...otherWords].sort(() => Math.random() - 0.5)
  }

  const vocabChoiceOptions = generateVocabChoiceOptions()

  // 回調函數
  const handleConfidenceSubmit = (level: number) => {
    addLog(`FlipMemoryTest: 信心等級 ${level}`)
  }

  const handleAnswer = (answer: string) => {
    addLog(`答案提交: ${answer}`)
  }

  const handleReportError = () => {
    addLog('回報錯誤')
  }

  const handleImageClick = (image: string) => {
    addLog(`圖片點擊: ${image}`)
  }

  return (
    <div className="min-h-screen bg-gradient-to-br from-blue-50 to-indigo-100">
      <Navigation />

      <div className="max-w-4xl mx-auto px-4 py-8">
        {/* 頁面標題 */}
        <div className="mb-8">
          <h1 className="text-3xl font-bold text-gray-900 mb-2">Review 組件設計</h1>
          <p className="text-gray-600">所有 review-tests 組件的 UI 設計頁面</p>

          {/* 卡片切換控制 */}
          <div className="mt-4 flex items-center gap-4">
            <button
              onClick={() => setCurrentCardIndex(Math.max(0, currentCardIndex - 1))}
              disabled={currentCardIndex === 0}
              className="px-3 py-1 bg-gray-500 text-white rounded disabled:opacity-50"
            >
              上一張
            </button>
            <span className="text-sm text-gray-600">
              卡片 {currentCardIndex + 1} / {flashcardsData.length} - {currentCard?.word || 'loading'}
            </span>
            <button
              onClick={() => setCurrentCardIndex(Math.min(flashcardsData.length - 1, currentCardIndex + 1))}
              disabled={currentCardIndex >= flashcardsData.length - 1}
              className="px-3 py-1 bg-gray-500 text-white rounded disabled:opacity-50"
            >
              下一張
            </button>
          </div>
        </div>

        {/* Tab 導航 */}
        <div className="mb-8">
          <div className="border-b border-gray-200">
            <div className="flex space-x-8 overflow-x-auto">
              {testComponents.map((component) => (
                <button
                  key={component.id}
                  onClick={() => setActiveTab(component.id)}
                  className={`py-4 px-1 border-b-2 font-medium text-sm whitespace-nowrap transition-colors ${
                    activeTab === component.id
                      ? 'border-blue-500 text-blue-600'
                      : 'border-transparent text-gray-500 hover:text-gray-700 hover:border-gray-300'
                  }`}
                >
                  {component.name}
                </button>
              ))}
            </div>
          </div>
        </div>


        {/* 當前測驗組件展示 */}
        <div className="mb-8">
          <div className="mb-6">
            <h2 className="text-2xl font-semibold text-gray-900">{activeTab}</h2>
            <p className="text-sm text-gray-600 mt-1">{testComponents.find(c => c.id === activeTab)?.name}</p>
          </div>
          <div>
            {/* 條件渲染當前選中的測驗組件 */}
            {activeTab === 'FlipMemoryTest' && (
              <FlipMemoryTest
                word={mockCardData.word}
                definition={mockCardData.definition}
                example={mockCardData.example}
                exampleTranslation={mockCardData.exampleTranslation}
                pronunciation={mockCardData.pronunciation}
                synonyms={[]}
                difficultyLevel={mockCardData.difficultyLevel}
                onConfidenceSubmit={handleConfidenceSubmit}
                onReportError={handleReportError}
              />
            )}

            {activeTab === 'VocabChoiceTest' && (
              <VocabChoiceTest
                word={mockCardData.word}
                definition={mockCardData.definition}
                example={mockCardData.example}
                exampleTranslation={mockCardData.exampleTranslation}
                pronunciation={mockCardData.pronunciation}
                difficultyLevel={mockCardData.difficultyLevel}
                options={vocabChoiceOptions}
                onAnswer={handleAnswer}
                onReportError={handleReportError}
              />
            )}

            {activeTab === 'SentenceFillTest' && (
              <SentenceFillTest
                word={mockCardData.word}
                definition={mockCardData.definition}
                example={mockCardData.example}
                filledQuestionText={mockCardData.filledQuestionText}
                exampleTranslation={mockCardData.exampleTranslation}
                pronunciation={mockCardData.pronunciation}
                difficultyLevel={mockCardData.difficultyLevel}
                exampleImage={mockCardData.exampleImage}
                onAnswer={handleAnswer}
                onReportError={handleReportError}
                onImageClick={handleImageClick}
              />
            )}

            {activeTab === 'SentenceReorderTest' && (
              <SentenceReorderTest
                word={mockCardData.word}
                definition={mockCardData.definition}
                example={mockCardData.example}
                exampleTranslation={mockCardData.exampleTranslation}
                difficultyLevel={mockCardData.difficultyLevel}
                exampleImage={mockCardData.exampleImage}
                onAnswer={handleAnswer}
                onReportError={handleReportError}
                onImageClick={handleImageClick}
              />
            )}

            {activeTab === 'VocabListeningTest' && (
              <VocabListeningTest
                word={mockCardData.word}
                definition={mockCardData.definition}
                pronunciation={mockCardData.pronunciation}
                difficultyLevel={mockCardData.difficultyLevel}
                options={vocabChoiceOptions}
                onAnswer={handleAnswer}
                onReportError={handleReportError}
              />
            )}

            {activeTab === 'SentenceListeningTest' && (
              <SentenceListeningTest
                word={mockCardData.word}
                example={mockCardData.example}
                exampleTranslation={mockCardData.exampleTranslation}
                difficultyLevel={mockCardData.difficultyLevel}
                options={vocabChoiceOptions}
                exampleImage={mockCardData.exampleImage}
                onAnswer={handleAnswer}
                onReportError={handleReportError}
                onImageClick={handleImageClick}
              />
            )}

            {activeTab === 'SentenceSpeakingTest' && (
              <SentenceSpeakingTest
                word={mockCardData.word}
                example={mockCardData.example}
                exampleTranslation={mockCardData.exampleTranslation}
                difficultyLevel={mockCardData.difficultyLevel}
                exampleImage={mockCardData.exampleImage}
                onAnswer={handleAnswer}
                onReportError={handleReportError}
                onImageClick={handleImageClick}
              />
            )}
          </div>
        </div>

        {/* 操作日誌區域 */}
        <div className="mt-8 bg-white rounded-lg shadow p-4">
          <h3 className="font-semibold text-gray-900 mb-3">操作日誌</h3>
          <div className="space-y-1 max-h-32 overflow-y-auto">
            {logs.length === 0 ? (
              <p className="text-gray-500 text-sm">無操作記錄</p>
            ) : (
              logs.map((log, index) => (
                <div key={index} className="text-sm text-gray-600 font-mono">
                  {log}
                </div>
              ))
            )}
          </div>
        </div>
      </div>
    </div>
  )
}