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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>AI Blog Assistant</title>
<script src="https://cdn.tailwindcss.com"></script>
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap" rel="stylesheet">
<style>
body {
font-family: 'Inter', sans-serif;
}
.loader {
border: 4px solid #f3f3f3;
border-top: 4px solid #3b82f6;
border-radius: 50%;
width: 24px;
height: 24px;
animation: spin 1s linear infinite;
}
@keyframes spin {
0% { transform: rotate(0deg); }
100% { transform: rotate(360deg); }
}
</style>
</head>
<body class="bg-gray-100 flex items-center justify-center min-h-screen">
<div class="w-full max-w-2xl bg-white rounded-2xl shadow-lg p-8 m-4">
<div class="text-center mb-8">
<h1 class="text-4xl font-bold text-gray-800">AI Blog Assistant</h1>
<p class="text-gray-500 mt-2">Ask a question based on the provided documents to get help writing your blog.</p>
</div>
<!-- Query Form -->
<div class="mb-6">
<form id="query-form" class="flex flex-col sm:flex-row items-stretch gap-3">
<input type="text" id="query-input" placeholder="e.g., How does the Augusta Rule work?" class="flex-grow w-full px-4 py-3 text-gray-700 bg-gray-50 border border-gray-300 rounded-lg focus:outline-none focus:ring-2 focus:ring-blue-500 transition duration-200" required>
<button type="submit" id="submit-button" class="bg-blue-600 text-white font-semibold px-6 py-3 rounded-lg hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-blue-500 transition duration-200 flex items-center justify-center gap-2">
<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-send"><line x1="22" y1="2" x2="11" y2="13"></line><polygon points="22 2 15 22 11 13 2 9 22 2"></polygon></svg>
<span>Get Answer</span>
</button>
</form>
</div>
<!-- Error Message Area -->
<div id="error-message" class="hidden bg-red-100 border border-red-400 text-red-700 px-4 py-3 rounded-lg relative mb-6" role="alert">
<strong class="font-bold">Error:</strong>
<span class="block sm:inline" id="error-text"></span>
</div>
<!-- Response Area -->
<div id="response-container" class="hidden">
<h2 class="text-2xl font-semibold text-gray-800 mb-4">Answer:</h2>
<div id="response-card" class="bg-gray-50 p-6 rounded-lg border border-gray-200 min-h-[100px] flex items-center">
<div id="loader" class="loader hidden"></div>
<p id="response-text" class="text-gray-700 leading-relaxed"></p>
</div>
</div>
<div class="text-center mt-8">
<p class="text-xs text-gray-400">RAG-Powered Web Interface</p>
</div>
</div>
<script>
const form = document.getElementById('query-form');
const input = document.getElementById('query-input');
const submitButton = document.getElementById('submit-button');
const responseContainer = document.getElementById('response-container');
const responseCard = document.getElementById('response-card');
const responseText = document.getElementById('response-text');
const loader = document.getElementById('loader');
const errorMessage = document.getElementById('error-message');
const errorText = document.getElementById('error-text');
// IMPORTANT: In a real deployment (like Hugging Face), this URL should be relative.
// The server and the frontend are served from the same origin.
const API_URL = '/query';
form.addEventListener('submit', async (e) => {
e.preventDefault();
const query = input.value.trim();
if (!query) return;
// --- UI Changes for Loading State ---
submitButton.disabled = true;
submitButton.classList.add('opacity-50', 'cursor-not-allowed');
responseText.textContent = '';
loader.classList.remove('hidden');
responseContainer.classList.remove('hidden');
errorMessage.classList.add('hidden'); // Hide previous errors
try {
const response = await fetch(API_URL, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ query: query })
});
if (!response.ok) {
const errorData = await response.json().catch(() => ({}));
const errorMsg = errorData.error || `HTTP error! Status: ${response.status}`;
throw new Error(errorMsg);
}
const data = await response.json();
responseText.textContent = data.answer;
} catch (error) {
console.error("Fetch error:", error);
errorText.textContent = `Failed to process the query. Make sure the backend server is running and accessible. Details: ${error.message}`;
errorMessage.classList.remove('hidden');
responseContainer.classList.add('hidden'); // Hide the response area on error
} finally {
// --- Revert UI Changes ---
submitButton.disabled = false;
submitButton.classList.remove('opacity-50', 'cursor-not-allowed');
loader.classList.add('hidden');
}
});
</script>
</body>
</html>
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