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<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>教學平台測驗題目生成器 v5.0 (Multi-AI)</title>
<script src="https://cdn.tailwindcss.com"></script>
<!-- SheetJS/xlsx library for creating .xlsx files -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/xlsx/0.18.5/xlsx.full.min.js"></script>
<!-- pdf.js for reading PDF files -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/pdf.js/2.11.338/pdf.min.js"></script>
<link href="https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@400;500;700&display=swap" rel="stylesheet">
<style>
body {
font-family: 'Noto Sans TC', sans-serif;
background-color: #f5f3ff; /* Fallback */
background-image: linear-gradient(to top right, #f5f3ff, #eef2ff); /* Gradient background */
}
.loader {
border: 5px solid #f3f3f3;
border-top: 5px solid #6366f1; /* Indigo color for loader */
border-radius: 50%;
width: 50px;
height: 50px;
animation: spin 1s linear infinite;
}
@keyframes spin {
0% { transform: rotate(0deg); }
100% { transform: rotate(360deg); }
}
.image-preview-item {
position: relative;
}
.remove-image-btn {
position: absolute;
top: -0.5rem;
right: -0.5rem;
background-color: rgba(0, 0, 0, 0.7);
color: white;
border-radius: 50%;
width: 1.5rem;
height: 1.5rem;
display: flex;
align-items: center;
justify-content: center;
cursor: pointer;
font-weight: bold;
line-height: 1;
transition: background-color 0.2s;
}
.remove-image-btn:hover {
background-color: rgba(239, 68, 68, 0.9); /* Red on hover */
}
.tab-btn {
cursor: pointer;
padding: 0.75rem 1rem;
border-bottom: 3px solid transparent;
transition: all 0.3s ease;
font-weight: 500;
white-space: nowrap;
}
.tab-btn.active {
color: #4f46e5; /* indigo-600 */
border-bottom-color: #4f46e5;
}
.tab-content {
display: none;
}
.tab-content.active {
display: block;
}
</style>
</head>
<body class="text-gray-800">
<!-- Main Container -->
<div class="container mx-auto p-4 md:p-8">
<!-- Header -->
<header class="text-center mb-10">
<h1 class="text-4xl md:text-5xl font-bold text-indigo-700">教學平台測驗題目生成器</h1>
<p class="text-lg text-gray-500 mt-3"> 超方便生成器，一鍵生成 Wordwall、Kahoot、Wayground、LoiLoNote 格式測驗 </p>
</header>
<!-- Main Content Layout -->
<main class="max-w-4xl mx-auto space-y-8">
<!-- Step 0: API Key Input -->
<div class="bg-white p-4 rounded-2xl shadow-lg border border-gray-100">
<h2 class="text-2xl font-bold mb-4 text-indigo-600 flex items-center"><span class="bg-indigo-600 text-white rounded-full h-8 w-8 flex items-center justify-center mr-3">🔑</span>啟用 AI 功能</h2>
<div class="grid grid-cols-1 md:grid-cols-2 gap-4">
<div>
<label for="ai-provider-select" class="block text-sm font-medium text-gray-700">AI 模型供應商：</label>
<select id="ai-provider-select" class="mt-1 block w-full p-3 border border-gray-300 bg-white rounded-lg shadow-sm focus:outline-none focus:ring-indigo-500 focus:border-indigo-500">
<option value="google" selected>Google Gemini</option>
<option value="openai">OpenAI (ChatGPT)</option>
</select>
</div>
<div>
<label for="api-key-input" class="block text-sm font-medium text-gray-700">API 金鑰 (必填)：</label>
<input type="password" id="api-key-input" class="mt-1 block w-full p-3 border border-gray-300 rounded-lg shadow-sm focus:ring-indigo-500 focus:border-indigo-500" placeholder="請貼上您選擇的供應商金鑰">
</div>
</div>
<p id="api-key-help-text" class="text-xs text-gray-500 mt-2">您可以從 <a href="https://aistudio.google.com/app/apikey" target="_blank" class="text-indigo-600 underline">Google AI Studio</a> 免費取得金鑰。</p>
</div>
<!-- Step 1: Input -->
<div class="bg-white p-6 rounded-2xl shadow-lg border border-gray-100">
<h2 class="text-2xl font-bold mb-5 text-indigo-600 flex items-center"><span class="bg-indigo-600 text-white rounded-full h-8 w-8 flex items-center justify-center mr-3">1</span>提供內容</h2>
<!-- Tabs for Input Method -->
<div class="border-b border-gray-200 mb-6 overflow-x-auto">
<nav class="-mb-px flex space-x-2 md:space-x-4" aria-label="Tabs">
<button id="tab-paste-text" class="tab-btn active">📋 貼上文字</button>
<button id="tab-upload-file" class="tab-btn">📄 上傳檔案</button>
<button id="tab-upload-image" class="tab-btn">🖼️ 上傳圖片</button>
<button id="tab-ai-generate" class="tab-btn">✨ AI生成內文</button>
</nav>
</div>
<!-- Tab 1: Paste Text -->
<div id="content-paste-text" class="tab-content active">
<label for="text-input" class="block text-sm font-medium text-gray-700 mb-1">貼上文章或教學內容：</label>
<textarea id="text-input" rows="8" class="w-full p-3 border border-gray-300 rounded-lg focus:ring-2 focus:ring-indigo-500 focus:border-indigo-500 transition" placeholder="請在此貼上您的教學文字內容..."></textarea>
<div class="flex justify-end mt-2">
<button id="copy-content-btn" class="bg-indigo-100 text-indigo-700 font-semibold py-2 px-4 rounded-lg hover:bg-indigo-200 transition duration-300 flex items-center text-sm hidden">
<svg xmlns="http://www.w3.org/2000/svg" class="h-5 w-5 mr-2" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="2">
<path stroke-linecap="round" stroke-linejoin="round" d="M8 16H6a2 2 0 01-2-2V6a2 2 0 012-2h8a2 2 0 012 2v2m-6 12h8a2 2 0 002-2v-8a2 2 0 00-2-2h-8a2 2 0 00-2 2v8a2 2 0 002 2z"></path>
</svg>
複製文章內容
</button>
</div>
</div>
<!-- Tab 2: Upload File -->
<div id="content-upload-file" class="tab-content">
<label for="file-input" class="block text-sm font-medium text-gray-700 mb-2">上傳文字檔：</label>
<label for="file-input" class="flex flex-col items-center justify-center w-full h-48 px-4 transition bg-white border-2 border-gray-300 border-dashed rounded-lg appearance-none cursor-pointer hover:border-indigo-400 focus:outline-none hover:bg-indigo-50">
<span class="flex items-center space-x-2">
<svg xmlns="http://www.w3.org/2000/svg" class="w-6 h-6 text-gray-500" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="2">
<path stroke-linecap="round" stroke-linejoin="round" d="M9 12h6m-6 4h6m2 5H7a2 2 0 01-2-2V5a2 2 0 012-2h5.586a1 1 0 01.707.293l5.414 5.414a1 1 0 01.293.707V19a2 2 0 01-2 2z" />
</svg>
<span class="font-medium text-gray-600">
點擊此處上傳文字檔
<span class="text-indigo-600">或拖曳檔案到這裡</span>
</span>
</span>
<p class="text-xs text-gray-500 mt-1">支援 .txt 及 .pdf 格式</p>
</label>
<input type="file" id="file-input" class="hidden" accept=".txt,.pdf">
<p id="file-name-display" class="mt-2 text-sm text-center text-gray-600"></p>
</div>
<!-- Tab 3: Upload Image -->
<div id="content-upload-image" class="tab-content">
<label for="image-input" class="block text-sm font-medium text-gray-700 mb-2">上傳圖片 (支援多張圖片)：</label>
<label for="image-input" class="flex flex-col items-center justify-center w-full h-32 px-4 transition bg-white border-2 border-gray-300 border-dashed rounded-lg appearance-none cursor-pointer hover:border-indigo-400 focus:outline-none hover:bg-indigo-50">
<span class="flex items-center space-x-2">
<svg xmlns="http://www.w3.org/2000/svg" class="w-6 h-6 text-gray-500" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="2">
<path stroke-linecap="round" stroke-linejoin="round" d="M4 16l4.586-4.586a2 2 0 012.828 0L16 16m-2-2l1.586-1.586a2 2 0 012.828 0L20 14m-6-6h.01M6 20h12a2 2 0 002-2V6a2 2 0 00-2-2H6a2 2 0 00-2 2v12a2 2 0 002 2z" />
</svg>
<span class="font-medium text-gray-600">
點擊此處上傳圖片
<span class="text-indigo-600">或拖曳檔案到這裡</span>
</span>
</span>
<p class="text-xs text-gray-500 mt-1">支援 .jpg, .png, .gif, .webp 格式 (僅限 Google Gemini 模型)</p>
</label>
<input type="file" id="image-input" class="hidden" accept="image/*" multiple>
<div id="image-preview-container" class="mt-4 grid grid-cols-2 md:grid-cols-4 gap-4"></div>
</div>
<!-- Tab 4: AI Generate Content -->
<div id="content-ai-generate" class="tab-content">
<div class="space-y-4">
<div>
<label for="topic-input" class="block text-sm font-medium text-gray-700 mb-1">請輸入測驗主題、單字或語詞：</label>
<input type="text" id="topic-input" class="w-full p-3 border border-gray-300 rounded-lg focus:ring-2 focus:ring-indigo-500 focus:border-indigo-500 transition" placeholder="例如：光合作用、永續發展、apple, banana, run...">
</div>
<div>
<label for="student-level-select" class="block text-sm font-medium text-gray-700 mb-1">請選擇學生程度 (K12)：</label>
<select id="student-level-select" class="w-full p-3 border border-gray-300 bg-white rounded-lg shadow-sm focus:outline-none focus:ring-indigo-500 focus:border-indigo-500">
<option value="1-2" selected>低年級</option>
<option value="3-4">中年級</option>
<option value="5-6">高年級</option>
<option value="7-9">國中</option>
<option value="9-12">高中</option>
</select>
</div>
<button id="generate-content-btn" class="w-full bg-emerald-500 text-white font-bold py-3 px-4 rounded-lg hover:bg-emerald-600 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-emerald-500 transition duration-300 flex items-center justify-center">
<svg xmlns="http://www.w3.org/2000/svg" class="w-5 h-5 mr-2" viewBox="0 0 20 20" fill="currentColor">
<path d="M17.293 13.293A8 8 0 016.707 2.707a8.001 8.001 0 1010.586 10.586z" />
</svg>
生成學習內文
</button>
<p class="text-xs text-center text-gray-500">AI 將根據您的輸入生成學習短文，並自動填入「貼上文字」頁籤中。</p>
</div>
</div>
</div>
<!-- Step 2: Options -->
<div class="bg-white p-6 rounded-2xl shadow-lg border border-gray-100">
<h2 class="text-2xl font-bold mb-5 text-indigo-600 flex items-center"><span class="bg-indigo-600 text-white rounded-full h-8 w-8 flex items-center justify-center mr-3">2</span>設定選項</h2>
<div class="grid grid-cols-1 md:grid-cols-2 gap-6">
<div>
<label for="num-questions" class="block text-sm font-medium text-gray-700">題目數量：</label>
<input type="number" id="num-questions" value="5" min="1" max="50" class="mt-1 block w-full p-3 border border-gray-300 rounded-lg shadow-sm focus:ring-indigo-500 focus:border-indigo-500">
</div>
<div>
<label for="format-select" class="block text-sm font-medium text-gray-700">匯出格式：</label>
<select id="format-select" class="mt-1 block w-full p-3 border border-gray-300 bg-white rounded-lg shadow-sm focus:outline-none focus:ring-indigo-500 focus:border-indigo-500 h-[50px]">
<option value="" disabled selected>請選擇...</option>
<option value="wordwall">Wordwall</option>
<option value="kahoot">Kahoot!</option>
<option value="wayground">Wayground</option>
<option value="loilonote">LoiLoNote</option>
</select>
</div>
<div>
<label for="question-type-select" class="block text-sm font-medium text-gray-700">題目類型：</label>
<select id="question-type-select" class="mt-1 block w-full p-3 border border-gray-300 bg-white rounded-lg shadow-sm focus:outline-none focus:ring-indigo-500 focus:border-indigo-500 h-[50px]">
<option value="multiple_choice" selected>選擇題</option>
<option value="true_false">是非題</option>
<option value="mixed">是非+選擇題</option>
</select>
</div>
<div>
<label for="difficulty-select" class="block text-sm font-medium text-gray-700">題目難度：</label>
<select id="difficulty-select" class="mt-1 block w-full p-3 border border-gray-300 bg-white rounded-lg shadow-sm focus:outline-none focus:ring-indigo-500 focus:border-indigo-500 h-[50px]">
<option value="中等" selected>中等 (預設)</option>
<option value="簡單">簡單</option>
<option value="困難">困難</option>
</select>
</div>
</div>
</div>
<!-- Step 3: Generate and Download Button -->
<div class="mt-8">
<button id="generate-and-download-btn" class="w-full bg-indigo-600 text-white font-bold py-4 px-4 rounded-xl hover:bg-indigo-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-indigo-500 transition duration-300 ease-in-out transform hover:-translate-y-1 flex items-center justify-center text-xl shadow-lg hover:shadow-xl hover:shadow-indigo-500/30">
<svg xmlns="http://www.w3.org/2000/svg" class="w-6 h-6 mr-3" fill="currentColor" viewBox="0 0 20 20">
<path fill-rule="evenodd" d="M10 18a8 8 0 100-16 8 8 0 000 16zm3.707-8.707l-3-3a1 1 0 00-1.414 0l-3 3a1 1 0 001.414 1.414L9 9.414V13a1 1 0 102 0V9.414l1.293 1.293a1 1 0 001.414-1.414z" clip-rule="evenodd" />
</svg>
✨ 一鍵 AI 生成並下載
</button>
</div>
</main>
<!-- Footer -->
<footer class="text-center mt-12 text-sm text-gray-500">
<p><span id="version-btn" class="cursor-pointer hover:text-indigo-600 hover:underline">v5.0 (Multi-AI)</span> | 由 Google Gemini 強力驅動 | <a href="https://bit.ly/Aliang" target="_blank" class="text-indigo-500 hover:underline">丫亮校長練功坊</a></p>
</footer>
</div>
<!-- Loading Overlay -->
<div id="loading-overlay" class="fixed inset-0 bg-gray-800 bg-opacity-60 flex items-center justify-center z-50 hidden">
<div class="bg-white p-8 rounded-lg shadow-xl flex flex-col items-center">
<div class="loader"></div>
<p id="loading-text" class="mt-4 text-lg font-semibold text-gray-700">AI 為您生成中...</p>
</div>
</div>
<!-- Toast Notification -->
<div id="toast" class="fixed bottom-5 right-5 bg-green-500 text-white py-2 px-5 rounded-lg shadow-xl opacity-0 transition-opacity duration-300">
<p id="toast-message"></p>
</div>
<!-- Version History Modal -->
<div id="version-modal" class="fixed inset-0 bg-gray-800 bg-opacity-60 flex items-center justify-center z-50 hidden">
<div class="bg-white p-6 rounded-lg shadow-xl w-11/12 md:w-1/2 max-w-lg relative">
<h3 class="text-2xl font-bold text-indigo-700 mb-4">版本修正歷程</h3>
<button id="close-modal-btn" class="absolute top-4 right-4 text-gray-500 hover:text-gray-800 text-2xl">×</button>
<div id="version-history-content" class="space-y-4 max-h-80 overflow-y-auto pr-4">
<!-- History will be populated by script -->
</div>
</div>
</div>
<script>
// Set up pdf.js worker
pdfjsLib.GlobalWorkerOptions.workerSrc = `https://cdnjs.cloudflare.com/ajax/libs/pdf.js/2.11.338/pdf.worker.min.js`;
// DOM Elements
const textInput = document.getElementById('text-input');
const fileInput = document.getElementById('file-input');
const fileNameDisplay = document.getElementById('file-name-display');
const imageInput = document.getElementById('image-input');
const imagePreviewContainer = document.getElementById('image-preview-container');
const numQuestionsInput = document.getElementById('num-questions');
const formatSelect = document.getElementById('format-select');
const generateAndDownloadBtn = document.getElementById('generate-and-download-btn');
const loadingOverlay = document.getElementById('loading-overlay');
const loadingText = document.getElementById('loading-text');
const toast = document.getElementById('toast');
const toastMessage = document.getElementById('toast-message');
const versionBtn = document.getElementById('version-btn');
const versionModal = document.getElementById('version-modal');
const closeModalBtn = document.getElementById('close-modal-btn');
const versionHistoryContent = document.getElementById('version-history-content');
const questionTypeSelect = document.getElementById('question-type-select');
const difficultySelect = document.getElementById('difficulty-select');
const copyContentBtn = document.getElementById('copy-content-btn');
const apiKeyInput = document.getElementById('api-key-input');
const aiProviderSelect = document.getElementById('ai-provider-select');
const apiKeyHelpText = document.getElementById('api-key-help-text');
// New Tab Feature Elements
const tabPasteText = document.getElementById('tab-paste-text');
const tabUploadFile = document.getElementById('tab-upload-file');
const tabUploadImage = document.getElementById('tab-upload-image');
const tabAiGenerate = document.getElementById('tab-ai-generate');
const contentPasteText = document.getElementById('content-paste-text');
const contentUploadFile = document.getElementById('content-upload-file');
const contentUploadImage = document.getElementById('content-upload-image');
const contentAiGenerate = document.getElementById('content-ai-generate');
const topicInput = document.getElementById('topic-input');
const generateContentBtn = document.getElementById('generate-content-btn');
const studentLevelSelect = document.getElementById('student-level-select');
// --- Version History Data ---
const versionHistory = [
{ version: "v5.0 (Multi-AI)", notes: ["✨【重大更新】支援多種 AI 模型！現在您可以選擇使用 Google Gemini, OpenAI (ChatGPT) 。", "新增「AI 模型供應商」下拉選單。", "重構 API 請求邏輯以適應不同供應商。"] },
{ version: "v4.2 (Standalone)", notes: ["✨ 重新設計「提供內容」區塊，將貼上文字、上傳檔案、上傳圖片、AI生成內文各自獨立為頁籤，優化操作流程。"] },
{ version: "v4.1 (Standalone)", notes: ["將 API 金鑰輸入框移至最上方，作為獨立的啟用步驟。"] },
{ version: "v4.0 (Standalone)", notes: ["✨ 新增 API 金鑰輸入框，使程式可完全脫離 Canvas 環境獨立運作。", "優化錯誤提示，引導使用者申請並填入自己的免費 API 金鑰。"] },
{ version: "v3.6", notes: ["修正大量出題時（如超過20題）的生成失敗問題。", "優化批次生成邏輯，確保 AI 請求的穩定性。"] },
{ version: "v3.4", notes: ["✨ 新增「複製文章內容」按鈕，方便老師將 AI 生成的內文分享至其他平台。"] },
{ version: "v3.3", notes: ["✨ 新增「是非+選擇題」混合題型。", "調整題型選項，移除「填空題」。"] }
];
function populateVersionHistory() {
let html = '';
versionHistory.forEach(v => {
html += `
<div>
<h4 class="font-bold text-lg">${v.version} ${v.current ? '<span class="text-sm font-normal text-indigo-600">(目前版本)</span>' : ''}</h4>
<ul class="list-disc list-inside text-gray-600">
${v.notes.map(note => `<li>${note}</li>`).join('')}
</ul>
</div>
`;
});
versionHistoryContent.innerHTML = html;
}
function getApiKey() {
const userKey = apiKeyInput.value.trim();
if (!userKey) {
throw new Error('API 金鑰為必填項！請從您選擇的 AI 供應商取得金鑰並貼入欄位中。');
}
return userKey;
}
function updateApiKeyHelpText() {
const provider = aiProviderSelect.value;
let link = '';
let linkText = '';
switch(provider) {
case 'openai':
link = 'https://platform.openai.com/api-keys';
linkText = 'OpenAI Platform';
break;
case 'google':
default:
link = 'https://aistudio.google.com/app/apikey';
linkText = 'Google AI Studio';
break;
}
apiKeyHelpText.innerHTML = `您可以從 <a href="${link}" target="_blank" class="text-indigo-600 underline">${linkText}</a> 免費取得金鑰。`;
}
// --- Core API Configuration ---
function getApiConfig() {
const provider = aiProviderSelect.value;
const apiKey = getApiKey();
switch (provider) {
case 'openai':
return {
apiUrl: 'https://api.openai.com/v1/chat/completions',
headers: {
'Authorization': `Bearer ${apiKey}`,
'Content-Type': 'application/json',
},
buildPayload: (systemPrompt, userParts, jsonSchema, model = 'gpt-4o') => {
const payload = {
model: model,
messages: [
{ role: 'system', content: systemPrompt },
{ role: 'user', content: userParts.map(p => p.text).join('\n') }
],
};
if (jsonSchema) {
payload.response_format = { type: "json_object" };
}
return payload;
},
parseResponse: async (response, isJson) => {
const result = await response.json();
const content = result.choices?.[0]?.message?.content;
if (!content) throw new Error('AI 回應中沒有有效的內容。');
return isJson ? JSON.parse(content).questions : content;
}
};
case 'google':
default:
return {
apiUrl: `https://generativelanguage.googleapis.com/v1beta/models/gemini-2.5-flash-preview-05-20:generateContent?key=${apiKey}`,
headers: { 'Content-Type': 'application/json' },
buildPayload: (systemPrompt, userParts, jsonSchema) => {
const payload = {
contents: [{ parts: userParts }],
systemInstruction: { parts: [{ text: systemPrompt }] },
};
if (jsonSchema) {
payload.generationConfig = { responseMimeType: "application/json", responseSchema: jsonSchema };
}
return payload;
},
parseResponse: async (response, isJson) => {
const result = await response.json();
const jsonText = result.candidates?.[0]?.content?.parts?.[0]?.text;
if (!jsonText) throw new Error('API 回應格式錯誤。');
return isJson ? JSON.parse(jsonText) : jsonText;
}
};
}
}
/**
* ✨ New Feature: Generate learning content from a topic using Gemini API.
*/
async function generateContentFromTopic() {
const topic = topicInput.value;
const studentLevel = studentLevelSelect.value;
if (!topic.trim()) {
showToast('請輸入一個主題、單字或語詞！', 'error');
return;
}
loadingOverlay.classList.remove('hidden');
loadingText.textContent = 'AI 為您生成內文中...';
try {
const config = getApiConfig();
const wordCountMap = { '1-2': 200, '3-4': 400, '5-6': 600, '7-9': 800, '9-12': 1000 };
const wordCount = wordCountMap[studentLevel];
const studentGradeText = studentLevelSelect.options[studentLevelSelect.selectedIndex].text;
let systemPrompt;
const userQuery = `主題/單字：${topic}`;
const isWordList = topic.includes(',') || /^[a-zA-Z\s,]+$/.test(topic) && topic.split(/\s+|,/).filter(Boolean).length <= 10;
if (isWordList) {
systemPrompt = `你是一位為K12學生編寫教材的創意寫作專家。請使用使用者提供的單字或語詞，為「${studentGradeText}」的學生，撰寫一篇有趣且連貫、長度約為 ${wordCount} 字的故事或閱讀短文。請確保這些詞彙自然地融入文章中。你的回應只能有文章本身，不要包含任何標題或額外文字。`;
} else {
systemPrompt = `你是一位知識淵博的教材編寫專家。請根據使用者提供的主題，為「${studentGradeText}」的學生，生成一段約 ${wordCount} 字的簡潔科普短文。你的回應只能有文章本身，不要包含任何標題或額外文字。`;
}
// For text generation, we don't pass a jsonSchema
const payload = config.buildPayload(systemPrompt, [{ text: userQuery }]);
const response = await fetch(config.apiUrl, {
method: 'POST',
headers: config.headers,
body: JSON.stringify(payload)
});
if (!response.ok) {
if (response.status === 401) throw new Error('API 請求失敗 (401): 授權無效。請確認您填寫的 API 金鑰是否正確。');
const errorBody = await response.text();
console.error("API Error Body:", errorBody);
throw new Error(`API 請求失敗: ${response.status}`);
}
const generatedText = await config.parseResponse(response, false); // isJson = false
if (generatedText) {
textInput.value = generatedText;
showToast('學習內文已成功生成！', 'success');
copyContentBtn.classList.remove('hidden');
tabPasteText.click();
} else {
throw new Error('AI未能生成內容，請稍後再試。');
}
} catch (error) {
console.error('生成內文時發生錯誤:', error);
showToast(error.message, 'error');
} finally {
loadingOverlay.classList.add('hidden');
}
}
/**
* Main handler to start the generation and export process.
*/
async function handleGenerateAndDownload() {
const text = textInput.value;
const totalQuestions = parseInt(numQuestionsInput.value, 10);
const selectedFormat = formatSelect.value;
const questionType = questionTypeSelect.value;
const difficulty = difficultySelect.value;
const provider = aiProviderSelect.value;
if (!text.trim() && uploadedImages.length === 0) {
showToast('請先輸入文字、或上傳圖片！', 'error');
return;
}
if (uploadedImages.length > 0 && provider !== 'google') {
showToast(`您選擇的 ${provider.charAt(0).toUpperCase() + provider.slice(1)} 模型不支援圖片輸入，請選擇 Google Gemini 或移除圖片。`, 'error');
return;
}
if (!selectedFormat) {
showToast('請選擇匯出檔案格式！', 'error');
return;
}
if (totalQuestions <= 0) {
showToast('題目數量必須大於 0！', 'error');
return;
}
loadingOverlay.classList.remove('hidden');
loadingText.textContent = 'AI 為您生成題目中...';
try {
getApiKey(); // Check for API key before starting batch process
const BATCH_SIZE = 8;
const numBatches = Math.ceil(totalQuestions / BATCH_SIZE);
let allGeneratedQs = [];
for (let i = 0; i < numBatches; i++) {
const questionsInBatch = Math.min(BATCH_SIZE, totalQuestions - allGeneratedQs.length);
if (questionsInBatch <= 0) break;
const batchResult = await generateSingleBatch(questionsInBatch, questionType, difficulty, text, uploadedImages, selectedFormat);
allGeneratedQs = allGeneratedQs.concat(batchResult);
}
if (allGeneratedQs.length > 0) {
exportFile(selectedFormat, questionType, allGeneratedQs);
} else {
throw new Error("AI 未能生成任何題目，請檢查您的輸入內容或稍後再試。");
}
} catch(error) {
console.error('生成題目時發生錯誤:', error);
showToast(error.message, 'error');
} finally {
loadingOverlay.classList.add('hidden');
}
}
async function generateSingleBatch(questionsInBatch, questionType, difficulty, text, images, selectedFormat) {
const config = getApiConfig();
const provider = aiProviderSelect.value;
let systemPrompt, jsonSchema;
const needsExplanation = selectedFormat === 'loilonote' || selectedFormat === 'wayground';
const mcProperties = { text: { type: "STRING" }, options: { type: "ARRAY", items: { type: "STRING" } }, correct: { type: "ARRAY", items: { type: "INTEGER" } }, time: { type: "INTEGER" } };
let mcRequired = ["text", "options", "correct", "time"];
if (needsExplanation) { mcProperties.explanation = { type: "STRING" }; mcRequired.push("explanation");}
const tfProperties = { text: { type: "STRING" }, is_correct: { type: "BOOLEAN" } };
let tfRequired = ["text", "is_correct"];
if (needsExplanation) { tfProperties.explanation = { type: "STRING" }; tfRequired.push("explanation");}
const jsonSchemaText = (props) => JSON.stringify(props).replace(/"/g, "'");
switch(questionType) {
case 'true_false':
jsonSchema = { type: "ARRAY", items: { type: "OBJECT", properties: tfProperties, required: tfRequired }};
systemPrompt = `你是一位專門輸出 JSON 的助手。請根據使用者提供的內容，生成${questionsInBatch}題${difficulty}難度的「是非題」。你的回應必須是一個 JSON 物件，且只有一個名為 "questions" 的 key，其 value 為一個 JSON 陣列。陣列中的每個物件都代表一題是非題，且必須符合以下結構：${jsonSchemaText(tfProperties)}。你的回應必須是「單一個」JSON 物件，不包含任何前後文、註解或 markdown 標籤。`;
break;
case 'mixed':
jsonSchema = { type: "ARRAY", items: { type: "OBJECT", properties: mcProperties, required: mcRequired }};
systemPrompt = `你是一位專門輸出 JSON 的助手。請根據使用者提供的內容，生成${questionsInBatch}題${difficulty}難度的「選擇題」與「是非題」混合題組。是非題請用 ["是", "否"] 作為選項。你的回應必須是一個 JSON 物件，且只有一個名為 "questions" 的 key，其 value 為一個 JSON 陣列。陣列中的每個物件都代表一題，且必須符合以下結構：${jsonSchemaText(mcProperties)}。你的回應必須是「單一個」JSON 物件，不包含任何前後文、註解或 markdown 標籤。`;
break;
case 'multiple_choice':
default:
jsonSchema = { type: "ARRAY", items: { type: "OBJECT", properties: mcProperties, required: mcRequired }};
systemPrompt = `你是一位專門輸出 JSON 的助手。請根據使用者提供的內容，生成${questionsInBatch}題${difficulty}難度的「選擇題」。每題必須有4個選項。你的回應必須是一個 JSON 物件，且只有一個名為 "questions" 的 key，其 value 為一個 JSON 陣列。陣列中的每個物件都代表一題選擇題，且必須符合以下結構：${jsonSchemaText(mcProperties)}。你的回應必須是「單一個」JSON 物件，不包含任何前後文、註解或 markdown 標籤。`;
break;
}
const userParts = [{ text: "請根據以下提供的文字和圖片內容出題。" }];
if(text.trim()){ userParts.push({ text: `文字內容:\n${text}`}); }
if (provider === 'google') {
images.forEach(img => {
userParts.push({ inlineData: { mimeType: img.type, data: img.data } });
});
}
const payload = config.buildPayload(systemPrompt, userParts, jsonSchema);
const response = await fetch(config.apiUrl, {
method: 'POST',
headers: config.headers,
body: JSON.stringify(payload)
});
if (!response.ok) {
if (response.status === 401) throw new Error('API 請求失敗 (401): 授權無效。請確認您選擇的 AI 供應商及對應的 API 金鑰是否正確。');
const errorBody = await response.text();
console.error("API Error Body:", errorBody);
throw new Error(`API 請求失敗，狀態碼: ${response.status}`);
}
try {
return await config.parseResponse(response, true); // isJson = true
} catch (e) {
console.error("Failed to parse response:", e);
throw new Error('API 回應了無效的格式，請嘗試減少題目數量。');
}
}
// --- File Handling (Text/PDF) ---
fileInput.addEventListener('change', (event) => {
const file = event.target.files[0];
if (!file) { fileNameDisplay.textContent = ''; return; }
fileNameDisplay.textContent = `已選擇檔案：${file.name}`;
const reader = new FileReader();
if (file.type === 'application/pdf') {
reader.onload = async (e) => {
const typedarray = new Uint8Array(e.target.result);
try {
const pdf = await pdfjsLib.getDocument(typedarray).promise;
let text = '';
for (let i = 1; i <= pdf.numPages; i++) {
const page = await pdf.getPage(i);
const content = await page.getTextContent();
text += content.items.map(item => item.str).join(' ');
}
textInput.value = text;
} catch (error) {
console.error("讀取PDF失敗:", error);
showToast("無法讀取此PDF檔案。", "error");
fileNameDisplay.textContent = '';
}
};
reader.readAsArrayBuffer(file);
} else { // Assume text file
reader.onload = (e) => { textInput.value = e.target.result; };
reader.readAsText(file);
}
});
// --- Image Handling ---
let uploadedImages = []; // To store { type, data } for each image
imageInput.addEventListener('change', (event) => {
const files = event.target.files;
if (!files) return;
imagePreviewContainer.innerHTML = '';
uploadedImages = [];
Array.from(files).forEach((file, index) => {
const reader = new FileReader();
reader.onload = (e) => {
const fullBase64 = e.target.result;
const base64Data = fullBase64.split(',')[1];
const imageObject = { id: Date.now() + index, type: file.type, data: base64Data };
uploadedImages.push(imageObject);
const previewWrapper = document.createElement('div');
previewWrapper.className = 'image-preview-item';
const imgElement = document.createElement('img');
imgElement.src = fullBase64;
imgElement.className = 'w-full h-32 object-cover rounded-lg shadow-md';
const removeBtn = document.createElement('div');
removeBtn.className = 'remove-image-btn';
removeBtn.innerHTML = '×';
removeBtn.onclick = () => {
uploadedImages = uploadedImages.filter(img => img.id !== imageObject.id);
previewWrapper.remove();
};
previewWrapper.appendChild(imgElement);
previewWrapper.appendChild(removeBtn);
imagePreviewContainer.appendChild(previewWrapper);
};
reader.readAsDataURL(file);
});
});
// --- Export Function ---
function exportFile(format, questionType, questions) {
if (!questions || questions.length === 0) {
showToast('沒有可匯出的題目！', 'error');
return;
}
let data, filename;
try {
const standardMCQs = questions.map(q => {
if (q.hasOwnProperty('is_correct')) { // Check if it is a true/false question
return {
text: q.text,
options: ['是', '否'],
correct: [q.is_correct ? 0 : 1],
time: 30,
explanation: q.explanation || ''
};
}
return q;
});
switch (format) {
case 'wordwall':
data = standardMCQs.map(q => ({
'問題': q.text,
'選項1': q.options[0] || '', '選項2': q.options[1] || '',
'選項3': q.options[2] || '', '選項4': q.options[3] || '',
'正確選項': q.correct.length > 0 ? (q.correct[0] + 1) : '',
}));
filename = 'Wordwall_Quiz.xlsx';
break;
case 'kahoot':
const kahootData = [
['Kahoot Quiz Template'], ['Add questions, answers, and time limits. Have fun!'], [], [],
['Question', 'Answer 1', 'Answer 2', 'Answer 3', 'Answer 4', 'Time limit (sec)', 'Correct answer(s)']
];
standardMCQs.forEach(q => {
kahootData.push([
q.text,
q.options[0] || '', q.options[1] || '', q.options[2] || '', q.options[3] || '',
q.time, q.correct.map(i => i + 1).join(',')
]);
});
const ws = XLSX.utils.aoa_to_sheet(kahootData);
const wb = XLSX.utils.book_new();
XLSX.utils.book_append_sheet(wb, ws, 'Sheet1');
XLSX.writeFile(wb, 'Kahoot_Quiz.xlsx');
showToast('Kahoot 檔案已下載！', 'success');
return;
case 'wayground':
data = standardMCQs.map(q => ({
'Question Text': q.text,
'Question Type': q.correct.length > 1 ? 'Checkbox' : 'Multiple Choice',
'Option 1': q.options[0] || '', 'Option 2': q.options[1] || '',
'Option 3': q.options[2] || '', 'Option 4': q.options[3] || '',
'Option 5': '', 'Correct Answer': q.correct.map(i => i + 1).join(','),
'Time in seconds': q.time, 'Image Link': '',
'Answer explanation': q.explanation || ''
}));
filename = 'Wayground_Quiz.xlsx';
break;
case 'loilonote':
data = standardMCQs.map(q => ({
'問題（請勿編輯標題）': q.text,
'務必作答（若此問題需要回答，請輸入1）': 1,
'每題得分（未填入的部分將被自動設為1）': 1,
'正確答案的選項（若有複數正確答案選項，請用「、」或「 , 」來分隔選項編號）': q.correct.map(i => i + 1).join(','),
'說明': q.explanation || '',
'選項1': q.options[0] || '', '選項2': q.options[1] || '',
'選項3': q.options[2] || '', '選項4': q.options[3] || '',
}));
filename = 'LoiLoNote_Quiz.xlsx';
break;
default: throw new Error('Unknown format');
}
const worksheet = XLSX.utils.json_to_sheet(data);
const workbook = XLSX.utils.book_new();
XLSX.utils.book_append_sheet(workbook, worksheet, 'Sheet1');
XLSX.writeFile(workbook, filename);
showToast(`${format.charAt(0).toUpperCase() + format.slice(1)} 檔案已下載！`, 'success');
} catch (error) {
console.error('Export failed:', error);
showToast('匯出失敗，請檢查主控台錯誤。', 'error');
}
};
// --- Utility Functions ---
function showToast(message, type = 'success') {
toastMessage.textContent = message;
toast.className = `fixed bottom-5 right-5 text-white py-2 px-5 rounded-lg shadow-xl opacity-0 transition-opacity duration-300 ${type === 'success' ? 'bg-green-500' : 'bg-red-500'}`;
toast.classList.remove('opacity-0');
setTimeout(() => { toast.classList.add('opacity-0'); }, 4000);
}
function copyContentToClipboard() {
const textToCopy = textInput.value;
if (!textToCopy.trim()) {
showToast('沒有內容可以複製！', 'error');
return;
}
const tempTextArea = document.createElement('textarea');
tempTextArea.value = textToCopy;
document.body.appendChild(tempTextArea);
tempTextArea.select();
try {
document.execCommand('copy');
showToast('文章內容已成功複製！', 'success');
} catch (err) {
console.error('複製失敗:', err);
showToast('無法複製內容，您的瀏覽器可能不支援此功能。', 'error');
} finally {
document.body.removeChild(tempTextArea);
}
}
// --- Initial setup on page load ---
document.addEventListener('DOMContentLoaded', () => {
populateVersionHistory();
updateApiKeyHelpText(); // Initial call
});
// --- Event Listeners ---
generateAndDownloadBtn.addEventListener('click', handleGenerateAndDownload);
generateContentBtn.addEventListener('click', generateContentFromTopic);
copyContentBtn.addEventListener('click', copyContentToClipboard);
aiProviderSelect.addEventListener('change', updateApiKeyHelpText);
// Tab switching logic
const tabs = [tabPasteText, tabUploadFile, tabUploadImage, tabAiGenerate];
const contents = [contentPasteText, contentUploadFile, contentUploadImage, contentAiGenerate];
tabs.forEach((tab, index) => {
tab.addEventListener('click', () => {
tabs.forEach(t => t.classList.remove('active'));
contents.forEach(c => c.classList.remove('active'));
tab.classList.add('active');
contents[index].classList.add('active');
});
});
// Modal closing logic
versionBtn.addEventListener('click', () => { versionModal.classList.remove('hidden'); });
closeModalBtn.addEventListener('click', () => { versionModal.classList.add('hidden'); });
versionModal.addEventListener('click', (event) => {
if (event.target === versionModal) { versionModal.classList.add('hidden'); }
});
</script>
</body>
</html>