app.py

from flask import Flask, request, jsonify, render_template
import os
import uuid
import time
import threading
import tiktoken
from datetime import datetime, timedelta
from collections import defaultdict, deque
from detoxify import Detoxify
import logging

logging.basicConfig(level=logging.INFO)

app = Flask(__name__, static_folder='static', template_folder='templates')

print("Loading Detoxify model... This may take a moment.")
detoxify_model = Detoxify('multilingual')
print("Model loaded successfully.")

API_KEY = os.getenv('API_KEY', 'your-api-key-here')

request_durations = deque(maxlen=100) 
request_timestamps = deque(maxlen=1000) 

daily_requests = defaultdict(int)
daily_tokens = defaultdict(int)
concurrent_requests = 0
concurrent_requests_lock = threading.Lock()

encoding = tiktoken.get_encoding("cl100k_base")

def count_tokens(text):
    return len(encoding.encode(text))

def transform_predictions(prediction_dict):
    category_keys = [
        "toxicity", "severe_toxicity", "obscene", "threat", 
        "insult", "identity_attack", "sexual_explicit"
    ]
    
    scores = {}
    for key in category_keys:
        scores[key] = float(prediction_dict.get(key, 0.0))
    
    threshold = 0.5
    bool_categories = {key: (scores[key] > threshold) for key in category_keys}
    flagged = any(bool_categories.values())
    
    return flagged, bool_categories, scores

def track_request_metrics(start_time, tokens_count):
    end_time = time.time()
    duration = end_time - start_time
    
    app.logger.info(f"Server-side processing for moderation request took {duration * 1000:.2f} ms.")
    
    request_durations.append(duration)
    request_timestamps.append(datetime.now())
    
    today = datetime.now().strftime("%Y-%m-%d")
    daily_requests[today] += 1
    daily_tokens[today] += tokens_count

def get_performance_metrics():
    global concurrent_requests
    with concurrent_requests_lock:
        current_concurrent = concurrent_requests
    
    if not request_durations:
        avg_request_time = 0
        peak_request_time = 0
    else:
        avg_request_time = sum(request_durations) / len(request_durations)
        peak_request_time = max(request_durations)

    now = datetime.now()
    one_minute_ago = now - timedelta(seconds=60)
    requests_last_minute = sum(1 for ts in request_timestamps if ts > one_minute_ago)
    
    today = now.strftime("%Y-%m-%d")
    today_requests = daily_requests.get(today, 0)
    today_tokens = daily_tokens.get(today, 0)
    
    last_7_days = []
    for i in range(7):
        date = (now - timedelta(days=i)).strftime("%Y-%m-%d")
        last_7_days.append({
            "date": date,
            "requests": daily_requests.get(date, 0),
            "tokens": daily_tokens.get(date, 0)
        })
    
    return {
        "avg_request_time_ms": avg_request_time * 1000,
        "peak_request_time_ms": peak_request_time * 1000,
        "requests_per_minute": requests_last_minute,
        "concurrent_requests": current_concurrent,
        "today_requests": today_requests,
        "today_tokens": today_tokens,
        "last_7_days": last_7_days
    }

@app.route('/')
def home():
    return render_template('index.html')

@app.route('/v1/moderations', methods=['POST'])
def moderations():
    global concurrent_requests
    
    with concurrent_requests_lock:
        concurrent_requests += 1
    
    start_time = time.time()
    total_tokens = 0
    
    response = None
    try:
        auth_header = request.headers.get('Authorization')
        if not auth_header or not auth_header.startswith("Bearer "):
            response = jsonify({"error": "Unauthorized"}), 401
            return response
        
        provided_api_key = auth_header.split(" ")[1]
        if provided_api_key != API_KEY:
            response = jsonify({"error": "Unauthorized"}), 401
            return response
        
        data = request.get_json()
        raw_input = data.get('input')
        
        if raw_input is None:
            response = jsonify({"error": "Invalid input, 'input' field is required"}), 400
            return response
        
        if isinstance(raw_input, str):
            texts = [raw_input]
        elif isinstance(raw_input, list):
            texts = raw_input
        else:
            response = jsonify({"error": "Invalid input format, expected string or list of strings"}), 400
            return response
        
        if not texts:
            response = jsonify({"error": "Input list cannot be empty"}), 400
            return response

        if len(texts) > 10:
            response = jsonify({"error": "Too many input items. Maximum 10 allowed."}), 400
            return response
        
        for text in texts:
            if not isinstance(text, str) or len(text.encode('utf-8')) > 300000:
                response = jsonify({"error": "Each input item must be a string with a maximum of 300k bytes."}), 400
                return response
            total_tokens += count_tokens(text)
        
        predictions = detoxify_model.predict(texts)
        results = []
        for i in range(len(texts)):
            single_prediction = {key: value[i] for key, value in predictions.items()}
            flagged, bool_categories, scores = transform_predictions(single_prediction)
            
            results.append({
                "flagged": flagged,
                "categories": bool_categories,
                "category_scores": scores,
            })
        
        response_data = {
            "id": "modr-" + uuid.uuid4().hex[:24],
            "model": "text-moderation-detoxify-multilingual",
            "results": results
        }
        
        response = jsonify(response_data)
        return response
    
    except Exception as e:
        app.logger.error(f"An error occurred: {e}", exc_info=True)
        response = jsonify({"error": "An internal server error occurred."}), 500
        return response
    finally:
        if response and response.status_code < 400:
            track_request_metrics(start_time, total_tokens)
        
        with concurrent_requests_lock:
            concurrent_requests -= 1

@app.route('/v1/metrics', methods=['GET'])
def metrics():
    auth_header = request.headers.get('Authorization')
    if not auth_header or not auth_header.startswith("Bearer "):
        return jsonify({"error": "Unauthorized"}), 401
    
    provided_api_key = auth_header.split(" ")[1]
    if provided_api_key != API_KEY:
        return jsonify({"error": "Unauthorized"}), 401
    
    return jsonify(get_performance_metrics())

def create_directories_and_files():
    os.makedirs('templates', exist_ok=True)
    os.makedirs('static', exist_ok=True)
    
    index_path = os.path.join('templates', 'index.html')
    if not os.path.exists(index_path):
        with open(index_path, 'w', encoding='utf-8') as f:
            f.write('''<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Text Moderation API</title>
    <script src="https://cdn.tailwindcss.com"></script>
    <script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
    <script>
        tailwind.config = {
            darkMode: 'class',
            theme: {
                extend: {
                    colors: {
                        primary: {
                            50: '#eff6ff', 100: '#dbeafe', 200: '#bfdbfe', 300: '#93c5fd', 400: '#60a5fa',
                            500: '#3b82f6', 600: '#2563eb', 700: '#1d4ed8', 800: '#1e40af', 900: '#1e3a8a',
                        }
                    }
                }
            }
        }
    </script>
    <style>
        .gradient-bg { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); }
        .dark .gradient-bg { background: linear-gradient(135deg, #1e3a8a 0%, #4c1d95 100%); }
        .glass-effect {
            background: rgba(255, 255, 255, 0.1); backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        .dark .glass-effect { background: rgba(30, 41, 59, 0.5); border: 1px solid rgba(100, 116, 139, 0.3); }
        .category-card { transition: all 0.3s ease; }
        .category-card:hover { transform: translateY(-5px); }
        .loading-spinner { border-top-color: #3b82f6; animation: spinner 1.5s linear infinite; }
        @keyframes spinner { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }
    </style>
</head>
<body class="bg-gray-50 dark:bg-gray-900 text-gray-900 dark:text-gray-100 min-h-screen font-sans">
    <header class="gradient-bg text-white shadow-lg">
        <div class="container mx-auto px-4 py-6 flex justify-between items-center">
            <div class="flex items-center space-x-3">
                <div class="w-10 h-10 rounded-full bg-white flex items-center justify-center">
                    <i class="fas fa-shield-alt text-primary-600 text-xl"></i>
                </div>
                <h1 class="text-2xl font-bold">Text Moderation API</h1>
            </div>
            <div class="flex items-center space-x-4">
                <button id="refreshMetrics" class="glass-effect px-4 py-2 rounded-lg hover:bg-white/20 transition">
                    <i class="fas fa-sync-alt mr-2"></i>Refresh Metrics
                </button>
                <button id="darkModeToggle" class="glass-effect p-2 rounded-lg hover:bg-white/20 transition">
                    <i class="fas fa-moon dark:hidden"></i>
                    <i class="fas fa-sun hidden dark:inline"></i>
                </button>
            </div>
        </div>
    </header>

    <main class="container mx-auto px-4 py-8">
        <section class="mb-12">
            <h2 class="text-2xl font-bold mb-6 flex items-center">
                <i class="fas fa-chart-line mr-3 text-primary-600"></i>
                Performance Metrics
            </h2>
            
            <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-6 mb-8">
                <div class="bg-white dark:bg-gray-800 rounded-xl shadow-lg p-6">
                    <div class="flex items-center justify-between">
                        <div>
                            <p class="text-gray-500 dark:text-gray-400 text-sm">Avg. Response (last 100)</p>
                            <p class="text-2xl font-bold" id="avgResponseTime">0ms</p>
                        </div>
                        <div class="w-12 h-12 rounded-full bg-primary-100 dark:bg-primary-900/30 flex items-center justify-center">
                            <i class="fas fa-clock text-primary-600 dark:text-primary-400"></i>
                        </div>
                    </div>
                </div>
                
                <div class="bg-white dark:bg-gray-800 rounded-xl shadow-lg p-6">
                    <div class="flex items-center justify-between">
                        <div>
                            <p class="text-gray-500 dark:text-gray-400 text-sm">Requests / Minute</p>
                            <p class="text-2xl font-bold" id="requestsPerMinute">0</p>
                        </div>
                        <div class="w-12 h-12 rounded-full bg-green-100 dark:bg-green-900/30 flex items-center justify-center">
                            <i class="fas fa-tachometer-alt text-green-600 dark:text-green-400"></i>
                        </div>
                    </div>
                </div>
                
                <div class="bg-white dark:bg-gray-800 rounded-xl shadow-lg p-6">
                    <div class="flex items-center justify-between">
                        <div>
                            <p class="text-gray-500 dark:text-gray-400 text-sm">Peak Response (last 100)</p>
                            <p class="text-2xl font-bold" id="peakResponseTime">0ms</p>
                        </div>
                        <div class="w-12 h-12 rounded-full bg-red-100 dark:bg-red-900/30 flex items-center justify-center">
                            <i class="fas fa-exclamation-triangle text-red-600 dark:text-red-400"></i>
                        </div>
                    </div>
                </div>
                
                <div class="bg-white dark:bg-gray-800 rounded-xl shadow-lg p-6">
                    <div class="flex items-center justify-between">
                        <div>
                            <p class="text-gray-500 dark:text-gray-400 text-sm">Today's Requests</p>
                            <p class="text-2xl font-bold" id="todayRequests">0</p>
                        </div>
                        <div class="w-12 h-12 rounded-full bg-yellow-100 dark:bg-yellow-900/30 flex items-center justify-center">
                            <i class="fas fa-list-ol text-yellow-600 dark:text-yellow-400"></i>
                        </div>
                    </div>
                </div>
            </div>
            
            <div class="bg-white dark:bg-gray-800 rounded-xl shadow-lg p-6">
                <h3 class="text-lg font-semibold mb-4">Last 7 Days Activity</h3>
                <div class="h-64">
                    <canvas id="activityChart"></canvas>
                </div>
            </div>
        </section>

        <section class="mb-12">
            <h2 class="text-2xl font-bold mb-6 flex items-center">
                <i class="fas fa-code mr-3 text-primary-600"></i>
                API Tester
            </h2>
            
            <div class="bg-white dark:bg-gray-800 rounded-xl shadow-lg p-6">
                <form id="apiTestForm">
                    <div class="mb-6">
                        <label class="block text-sm font-medium mb-2" for="apiKey">API Key</label>
                        <input type="password" id="apiKey" class="w-full px-4 py-2 rounded-lg border border-gray-300 dark:border-gray-600 bg-white dark:bg-gray-700 focus:outline-none focus:ring-2 focus:ring-primary-500" placeholder="Enter your API key">
                    </div>
                    
                    <div class="mb-6">
                        <label class="block text-sm font-medium mb-2">Text Inputs</label>
                        <div id="textInputsContainer">
                            <div class="text-input-group mb-4">
                                <textarea class="w-full px-4 py-2 rounded-lg border border-gray-300 dark:border-gray-600 bg-white dark:bg-gray-700 focus:outline-none focus:ring-2 focus:ring-primary-500" rows="3" placeholder="Enter text to moderate..."></textarea>
                                <button type="button" class="remove-input mt-2 text-red-500 hover:text-red-700 hidden">
                                    <i class="fas fa-trash-alt mr-1"></i> Remove
                                </button>
                            </div>
                        </div>
                        <button type="button" id="addTextInput" class="mt-2 text-primary-600 hover:text-primary-800 dark:text-primary-400 dark:hover:text-primary-300">
                            <i class="fas fa-plus-circle mr-1"></i> Add another text input
                        </button>
                    </div>
                    
                    <div class="flex justify-between items-center">
                        <div>
                            <button type="submit" id="analyzeBtn" class="bg-primary-600 hover:bg-primary-700 text-white font-medium py-2 px-6 rounded-lg transition">
                                <i class="fas fa-search mr-2"></i> Analyze Text
                            </button>
                            <button type="button" id="clearBtn" class="ml-2 bg-gray-300 hover:bg-gray-400 dark:bg-gray-600 dark:hover:bg-gray-700 text-gray-800 dark:text-gray-200 font-medium py-2 px-6 rounded-lg transition">
                                <i class="fas fa-eraser mr-2"></i> Clear
                            </button>
                        </div>
                        <div class="text-sm text-gray-500 dark:text-gray-400">
                            <i class="fas fa-info-circle mr-1"></i> Maximum 10 text inputs allowed
                        </div>
                    </div>
                </form>
            </div>
        </section>

        <section id="resultsSection" class="hidden">
            <h2 class="text-2xl font-bold mb-6 flex items-center">
                <i class="fas fa-clipboard-check mr-3 text-primary-600"></i>
                Analysis Results
            </h2>
            
            <div class="bg-white dark:bg-gray-800 rounded-xl shadow-lg p-6 mb-6">
                <div class="flex justify-between items-center mb-4">
                    <h3 class="text-lg font-semibold">Summary</h3>
                    <div class="text-sm text-gray-500 dark:text-gray-400">
                        <i class="fas fa-stopwatch mr-1"></i> Round-trip time: <span id="responseTime">0ms</span>
                    </div>
                </div>
                
                <div id="resultsContainer" class="space-y-6">
                </div>
            </div>
        </section>

        <section>
            <h2 class="text-2xl font-bold mb-6 flex items-center">
                <i class="fas fa-book mr-3 text-primary-600"></i>
                API Documentation
            </h2>
            <div class="bg-white dark:bg-gray-800 rounded-xl shadow-lg p-6">
                <h3 class="text-lg font-semibold mb-4">Endpoint</h3>
                <div class="bg-gray-100 dark:bg-gray-700 p-4 rounded-lg mb-6 font-mono text-sm">POST /v1/moderations</div>
                <h3 class="text-lg font-semibold mb-4">Request Body</h3>
                <div class="bg-gray-100 dark:bg-gray-700 p-4 rounded-lg mb-6 overflow-x-auto">
                    <pre class="text-sm"><code>{
  "input": "Text to moderate" 
}</code></pre>
                </div>
                <h3 class="text-lg font-semibold mb-4">Response</h3>
                <div class="bg-gray-100 dark:bg-gray-700 p-4 rounded-lg overflow-x-auto">
                    <pre class="text-sm"><code>{
  "id": "modr-1234567890abcdef",
  "model": "text-moderation-detoxify-multilingual",
  "results": [
    {
      "flagged": true,
      "categories": {
        "toxicity": true,
        "severe_toxicity": false,
        /* ... other categories */
      },
      "category_scores": {
        "toxicity": 0.95,
        "severe_toxicity": 0.1,
        /* ... other scores */
      }
    }
  ]
}</code></pre>
                </div>
            </div>
        </section>
    </main>

    <footer class="bg-gray-100 dark:bg-gray-800 border-t border-gray-200 dark:border-gray-700 mt-12">
        <div class="container mx-auto px-4 py-6 text-center text-gray-600 dark:text-gray-400">
            © 2025 Text Moderation API. All rights reserved.
        </div>
    </footer>

    <script>
        const darkModeToggle = document.getElementById('darkModeToggle');
        const html = document.documentElement;
        
        if (localStorage.getItem('theme') === 'dark' || (!('theme' in localStorage) && window.matchMedia('(prefers-color-scheme: dark)').matches)) {
            html.classList.add('dark');
        }
        
        darkModeToggle.addEventListener('click', () => {
            html.classList.toggle('dark');
            localStorage.setItem('theme', html.classList.contains('dark') ? 'dark' : 'light');
        });

        let activityChart;
        
        function initActivityChart() {
            if (activityChart) { activityChart.destroy(); }
            const ctx = document.getElementById('activityChart').getContext('2d');
            const isDarkMode = document.documentElement.classList.contains('dark');
            const gridColor = isDarkMode ? 'rgba(255, 255, 255, 0.1)' : 'rgba(0, 0, 0, 0.1)';
            const textColor = isDarkMode ? '#e5e7eb' : '#374151';

            activityChart = new Chart(ctx, {
                type: 'bar',
                data: { labels: [], datasets: [
                    { label: 'Requests', data: [], backgroundColor: 'rgba(59, 130, 246, 0.6)', borderColor: 'rgba(59, 130, 246, 1)', borderWidth: 1 },
                    { label: 'Tokens', data: [], backgroundColor: 'rgba(16, 185, 129, 0.6)', borderColor: 'rgba(16, 185, 129, 1)', borderWidth: 1, yAxisID: 'y1' }
                ]},
                options: {
                    responsive: true, maintainAspectRatio: false,
                    scales: {
                        y: { beginAtZero: true, position: 'left', title: { display: true, text: 'Requests', color: textColor }, ticks: { color: textColor }, grid: { color: gridColor } },
                        y1: { beginAtZero: true, position: 'right', title: { display: true, text: 'Tokens', color: textColor }, ticks: { color: textColor }, grid: { drawOnChartArea: false } }
                    },
                    plugins: { legend: { labels: { color: textColor } } }
                }
            });
        }

        async function fetchMetrics() {
            const apiKey = document.getElementById('apiKey').value || 'temp-key-for-metrics';
            try {
                const response = await fetch('/v1/metrics', {
                    headers: { 'Authorization': 'Bearer ' + apiKey }
                });
                if (!response.ok) {
                    const error = await response.json();
                    console.error('Failed to fetch metrics:', error.error);
                    if(response.status === 401) {
                    }
                    return;
                }
                const data = await response.json();
                updateMetricsDisplay(data);
            } catch (error) {
                console.error('Error fetching metrics:', error);
            }
        }

        function updateMetricsDisplay(data) {
            document.getElementById('avgResponseTime').textContent = data.avg_request_time_ms.toFixed(0) + 'ms';
            document.getElementById('peakResponseTime').textContent = data.peak_request_time_ms.toFixed(0) + 'ms';
            document.getElementById('requestsPerMinute').textContent = data.requests_per_minute;
            document.getElementById('todayRequests').textContent = data.today_requests.toLocaleString();

            if (activityChart) {
                const labels = data.last_7_days.map(d => new Date(d.date).toLocaleDateString('en-US', { month: 'short', day: 'numeric' })).reverse();
                const requests = data.last_7_days.map(d => d.requests).reverse();
                const tokens = data.last_7_days.map(d => d.tokens).reverse();
                
                activityChart.data.labels = labels;
                activityChart.data.datasets[0].data = requests;
                activityChart.data.datasets[1].data = tokens;
                activityChart.update();
            }
        }
        
        document.getElementById('addTextInput').addEventListener('click', () => {
            const container = document.getElementById('textInputsContainer');
            if (container.children.length >= 10) {
                alert('Maximum 10 text inputs allowed');
                return;
            }
            const newGroup = container.firstElementChild.cloneNode(true);
            newGroup.querySelector('textarea').value = '';
            newGroup.querySelector('.remove-input').classList.remove('hidden');
            container.appendChild(newGroup);
            updateRemoveButtons();
        });

        document.getElementById('textInputsContainer').addEventListener('click', function(e) {
            if (e.target.closest('.remove-input')) {
                e.target.closest('.text-input-group').remove();
                updateRemoveButtons();
            }
        });

        function updateRemoveButtons() {
            const groups = document.querySelectorAll('.text-input-group');
            groups.forEach(group => {
                group.querySelector('.remove-input').classList.toggle('hidden', groups.length <= 1);
            });
        }

        document.getElementById('clearBtn').addEventListener('click', () => {
            document.getElementById('apiTestForm').reset();
            const container = document.getElementById('textInputsContainer');
            container.innerHTML = container.firstElementChild.outerHTML;
            container.querySelector('textarea').value = '';
            updateRemoveButtons();
            document.getElementById('resultsSection').classList.add('hidden');
        });

        document.getElementById('apiTestForm').addEventListener('submit', async (e) => {
            e.preventDefault();
            
            const apiKey = document.getElementById('apiKey').value;
            if (!apiKey) { alert('Please enter your API key'); return; }
            
            const texts = Array.from(document.querySelectorAll('#textInputsContainer textarea'))
                                .map(t => t.value.trim()).filter(Boolean);
            if (texts.length === 0) { alert('Please enter at least one text to analyze'); return; }
            
            const analyzeBtn = document.getElementById('analyzeBtn');
            const originalBtnContent = analyzeBtn.innerHTML;
            analyzeBtn.innerHTML = '<div class="loading-spinner inline-block w-4 h-4 border-2 border-white border-t-transparent rounded-full mr-2"></div> Analyzing...';
            analyzeBtn.disabled = true;
            
            const startTime = Date.now();
            
            try {
                const response = await fetch('/v1/moderations', {
                    method: 'POST',
                    headers: { 'Content-Type': 'application/json', 'Authorization': 'Bearer ' + apiKey },
                    body: JSON.stringify({ input: texts.length === 1 ? texts[0] : texts })
                });
                
                const responseTime = Date.now() - startTime;
                
                const data = await response.json();
                if (!response.ok) throw new Error(data.error || 'Failed to analyze text');
                
                displayResults(data, responseTime, texts);
                fetchMetrics();
                
            } catch (error) {
                alert('Error: ' + error.message);
            } finally {
                analyzeBtn.innerHTML = originalBtnContent;
                analyzeBtn.disabled = false;
            }
        });

        function displayResults(data, responseTime, texts) {
            const resultsSection = document.getElementById('resultsSection');
            const resultsContainer = document.getElementById('resultsContainer');
            
            document.getElementById('responseTime').textContent = responseTime + 'ms';
            resultsContainer.innerHTML = '';
            
            data.results.forEach((result, index) => {
                const resultCard = document.createElement('div');
                resultCard.className = 'border border-gray-200 dark:border-gray-700 rounded-lg p-4';
                
                const flaggedBadge = result.flagged 
                    ? '<span class="inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-red-100 text-red-800 dark:bg-red-900 dark:text-red-100"><i class="fas fa-exclamation-triangle mr-1"></i> Flagged</span>'
                    : '<span class="inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-green-100 text-green-800 dark:bg-green-900 dark:text-green-100"><i class="fas fa-check-circle mr-1"></i> Safe</span>';
                
                let categoriesHtml = Object.entries(result.category_scores).map(([category, score]) => {
                    const isFlagged = result.categories[category];
                    const categoryClass = isFlagged ? 'text-red-600 dark:text-red-400' : 'text-green-600 dark:text-green-400';
                    const scoreClass = score > 0.7 ? 'text-red-600 dark:text-red-400' : score > 0.4 ? 'text-yellow-600 dark:text-yellow-400' : 'text-green-600 dark:text-green-400';
                    return `
                        <div class="flex justify-between items-center py-2 border-b border-gray-100 dark:border-gray-700 last:border-b-0">
                            <span class="font-medium capitalize">${category.replace(/_/g, ' ')}</span>
                            <div class="flex items-center">
                                <span class="text-sm ${scoreClass} font-mono">${score.toFixed(4)}</span>
                            </div>
                        </div>
                    `;
                }).join('');
                
                resultCard.innerHTML = `
                    <div class="flex justify-between items-start mb-3">
                        <h4 class="text-lg font-semibold">Input ${index + 1}</h4>
                        ${flaggedBadge}
                    </div>
                    <blockquote class="mb-4 p-3 bg-gray-50 dark:bg-gray-700 rounded-lg text-sm border-l-4 border-gray-300 dark:border-gray-500">${texts[index]}</blockquote>
                    <div class="category-card">
                        <h5 class="font-medium mb-2">Category Scores</h5>
                        <div class="bg-white dark:bg-gray-800/50 rounded-lg p-2">
                            ${categoriesHtml}
                        </div>
                    </div>
                `;
                resultsContainer.appendChild(resultCard);
            });
            
            resultsSection.classList.remove('hidden');
            resultsSection.scrollIntoView({ behavior: 'smooth', block: 'start' });
        }

        document.addEventListener('DOMContentLoaded', () => {
            initActivityChart();
            document.getElementById('refreshMetrics').addEventListener('click', fetchMetrics);
            fetchMetrics();
            setInterval(fetchMetrics, 15000);
        });
    </script>
</body>
</html>''')

if __name__ == '__main__':
    create_directories_and_files()
    port = int(os.getenv('PORT', 7860))
    app.run(host='0.0.0.0', port=port, debug=True, use_reloader=False)