app.py

from flask import Flask, render_template, request, jsonify
import requests
import os
import time
import random
from collections import Counter

app = Flask(__name__)

###################
# 1) 최대 50개만 가져오기 위해 limit=50으로 수정
###################
def fetch_trending_spaces(offset=0, limit=50):
    try:
        url = "https://huggingface.co/api/spaces"
        # 여기서는 최대 10000개를 가져오지만, slicing 시에 우리가 limit=50 을 적용
        params = {"limit": 10000}
        
        response = requests.get(url, params=params, timeout=30)
        
        if response.status_code == 200:
            spaces = response.json()
            filtered_spaces = [space for space in spaces 
                               if space.get('owner') != 'None'
                               and space.get('id', '').split('/', 1)[0] != 'None']
            
            # offset 및 limit 적용
            start = min(offset, len(filtered_spaces))
            end = min(offset + limit, len(filtered_spaces))
            
            print(f"Fetched {len(filtered_spaces)} spaces, returning {end - start} items from {start} to {end}")
            
            return {
                'spaces': filtered_spaces[start:end],
                'total': min(len(filtered_spaces), 50),  # 최대 50까지만 총합으로 반영
                'offset': offset,
                'limit': limit,
                'all_spaces': filtered_spaces[:50]  # 전체 통계 계산도 50개만
            }
        else:
            print(f"Error fetching spaces: {response.status_code}")
            return {
                'spaces': generate_dummy_spaces(limit),
                'total': 50,
                'offset': offset,
                'limit': limit,
                'all_spaces': generate_dummy_spaces(50)
            }
    except Exception as e:
        print(f"Exception when fetching spaces: {e}")
        return {
            'spaces': generate_dummy_spaces(limit),
            'total': 50,
            'offset': offset,
            'limit': limit,
            'all_spaces': generate_dummy_spaces(50)
        }

def generate_dummy_spaces(count):
    spaces = []
    for i in range(count):
        spaces.append({
            'id': f'dummy/space-{i}',
            'owner': 'dummy',
            'title': f'Example Space {i+1}',
            'likes': 100 - i,
            'createdAt': '2023-01-01T00:00:00.000Z'
        })
    return spaces

def transform_url(owner, name):
    name = name.replace('.', '-')
    name = name.replace('_', '-')
    owner = owner.lower()
    name = name.lower()
    return f"https://{owner}-{name}.hf.space"

def get_space_details(space_data, index, offset):
    try:
        if '/' in space_data.get('id', ''):
            owner, name = space_data.get('id', '').split('/', 1)
        else:
            owner = space_data.get('owner', '')
            name = space_data.get('id', '')
        
        if owner == 'None' or name == 'None':
            return None
        
        original_url = f"https://huggingface.co/spaces/{owner}/{name}"
        embed_url = transform_url(owner, name)
        likes_count = space_data.get('likes', 0)
        title = space_data.get('title', name)
        tags = space_data.get('tags', [])
        
        return {
            'url': original_url,
            'embedUrl': embed_url,
            'title': title,
            'owner': owner,
            'name': name,
            'likes_count': likes_count,
            'tags': tags,
            'rank': offset + index + 1
        }
    except Exception as e:
        print(f"Error processing space data: {e}")
        return {
            'url': 'https://huggingface.co/spaces',
            'embedUrl': 'https://huggingface.co/spaces',
            'title': 'Error Loading Space',
            'owner': 'huggingface',
            'name': 'error',
            'likes_count': 0,
            'tags': [],
            'rank': offset + index + 1
        }

def get_owner_stats(all_spaces):
    owners = []
    for space in all_spaces:
        if '/' in space.get('id', ''):
            owner, _ = space.get('id', '').split('/', 1)
        else:
            owner = space.get('owner', '')
        
        if owner != 'None':
            owners.append(owner)
    
    owner_counts = Counter(owners)
    top_owners = owner_counts.most_common(30)
    return top_owners

###########################
# 2) 두 번째 탭을 위한 "고정된" Huggingface URL 목록 예시
#    (원하는 스페이스들을 추가하세요)
###########################
CUSTOM_SPACES = [
    {
        'owner': 'huggingface',
        'name': 'diffuse-the-rest',
        'title': 'Diffuse The Rest Demo',
        'likes': 999,
    },
    {
        'owner': 'openai',
        'name': 'whisper',
        'title': 'Whisper Demo',
        'likes': 777,
    },
    {
        'owner': 'HuggingFaceH4',
        'name': 'Chat-UI',
        'title': 'Chat UI (HuggingFaceH4)',
        'likes': 450,
    },
]

###########################
# 2) 두 번째 탭 API 라우트
###########################
@app.route('/api/custom-spaces', methods=['GET'])
def custom_spaces():
    # 필요하다면 검색 기능 등 추가 가능. 여기서는 단순히 전체 반환
    results = []
    for index, item in enumerate(CUSTOM_SPACES):
        owner = item['owner']
        name = item['name']
        title = item.get('title', name)
        likes_count = item.get('likes', 0)
        
        # rank는 임의로 index+1
        results.append({
            'url': f"https://huggingface.co/spaces/{owner}/{name}",
            'embedUrl': transform_url(owner, name),
            'title': title,
            'owner': owner,
            'name': name,
            'likes_count': likes_count,
            'tags': [],
            'rank': index + 1
        })
    
    return jsonify({
        'spaces': results,
        'total': len(results),
    })


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

@app.route('/api/trending-spaces', methods=['GET'])
def trending_spaces():
    search_query = request.args.get('search', '').lower()
    offset = int(request.args.get('offset', 0))
    # 여기서도 limit=50으로 고정
    limit = int(request.args.get('limit', 50))

    spaces_data = fetch_trending_spaces(offset, limit)
    
    results = []
    for index, space_data in enumerate(spaces_data['spaces']):
        space_info = get_space_details(space_data, index, offset)
        if not space_info:
            continue
        
        # 검색어 필터
        if search_query:
            title = space_info['title'].lower()
            owner = space_info['owner'].lower()
            url = space_info['url'].lower()
            tags = ' '.join([str(tag) for tag in space_info.get('tags', [])]).lower()
            
            if (search_query not in title 
                and search_query not in owner 
                and search_query not in url 
                and search_query not in tags):
                continue
        
        results.append(space_info)
    
    top_owners = get_owner_stats(spaces_data.get('all_spaces', []))
    
    return jsonify({
        'spaces': results,
        'total': spaces_data['total'],
        'offset': offset,
        'limit': limit,
        'top_owners': top_owners
    })

if __name__ == '__main__':
    os.makedirs('templates', exist_ok=True)
    
    # index.html 생성 (원본에서 탭 기능만 추가)
    with open('templates/index.html', 'w', encoding='utf-8') as f:
        f.write('''<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Huggingface Spaces Gallery</title>
  <script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
  <style>
    /* (중략) — 원본 CSS 그대로 유지 */
    @import url('https://fonts.googleapis.com/css2?family=Nunito:wght@300;400;500;600;700&display=swap');
    
    :root {
      --pastel-pink: #FFD6E0;
      --pastel-blue: #C5E8FF;
      --pastel-purple: #E0C3FC;
      --pastel-yellow: #FFF2CC;
      --pastel-green: #C7F5D9;
      --pastel-orange: #FFE0C3;
      
      --mac-window-bg: rgba(250, 250, 250, 0.85);
      --mac-toolbar: #F5F5F7;
      --mac-border: #E2E2E2;
      --mac-button-red: #FF5F56;
      --mac-button-yellow: #FFBD2E;
      --mac-button-green: #27C93F;
      
      --text-primary: #333;
      --text-secondary: #666;
      --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    }
    * {
      margin: 0; padding: 0; box-sizing: border-box;
    }
    body {
      font-family: 'Nunito', sans-serif;
      line-height: 1.6;
      color: var(--text-primary);
      background-color: #f8f9fa;
      background-image: linear-gradient(135deg, var(--pastel-blue) 0%, var(--pastel-purple) 100%);
      min-height: 100vh;
      padding: 2rem;
    }
    .container {
      max-width: 1600px;
      margin: 0 auto;
    }
    .mac-window {
      background-color: var(--mac-window-bg);
      border-radius: 10px;
      box-shadow: var(--box-shadow);
      backdrop-filter: blur(10px);
      overflow: hidden;
      margin-bottom: 2rem;
      border: 1px solid var(--mac-border);
    }
    .mac-toolbar {
      display: flex;
      align-items: center;
      padding: 10px 15px;
      background-color: var(--mac-toolbar);
      border-bottom: 1px solid var(--mac-border);
    }
    .mac-buttons {
      display: flex; gap: 8px; margin-right: 15px;
    }
    .mac-button {
      width: 12px; height: 12px; border-radius: 50%; cursor: default;
    }
    .mac-close { background-color: var(--mac-button-red); }
    .mac-minimize { background-color: var(--mac-button-yellow); }
    .mac-maximize { background-color: var(--mac-button-green); }
    .mac-title {
      flex-grow: 1; text-align: center; font-size: 0.9rem; color: var(--text-secondary);
    }
    .mac-content { padding: 20px; }
    .header {
      text-align: center;
      margin-bottom: 1.5rem; position: relative;
    }
    .header h1 {
      font-size: 2.2rem; font-weight: 700; margin: 0; color: #2d3748; letter-spacing: -0.5px;
    }
    .header p {
      color: var(--text-secondary);
      margin-top: 0.5rem;
      font-size: 1.1rem;
    }
    .search-bar {
      display: flex; align-items: center; margin-bottom: 1.5rem;
      background-color: white; border-radius: 30px; padding: 5px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05); max-width: 600px;
      margin-left: auto; margin-right: auto;
    }
    .search-bar input {
      flex-grow: 1; border: none; padding: 12px 20px; font-size: 1rem;
      outline: none; background: transparent; border-radius: 30px;
    }
    .search-bar .refresh-btn {
      background-color: var(--pastel-green); color: #1a202c; border: none;
      border-radius: 30px; padding: 10px 20px; font-size: 1rem; font-weight: 600;
      cursor: pointer; transition: all 0.2s; display: flex; align-items: center; gap: 8px;
    }
    .search-bar .refresh-btn:hover {
      background-color: #9ee7c0;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    }
    .refresh-icon {
      display: inline-block; width: 16px; height: 16px; border: 2px solid #1a202c;
      border-top-color: transparent; border-radius: 50%; animation: none;
    }
    .refreshing .refresh-icon {
      animation: spin 1s linear infinite;
    }
    @keyframes spin {
      0% { transform: rotate(0deg); }
      100% { transform: rotate(360deg); }
    }
    .grid-container {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
      gap: 1.5rem;
      margin-bottom: 2rem;
    }
    .grid-item {
      height: 500px; position: relative; overflow: hidden;
      transition: all 0.3s ease; border-radius: 15px;
    }
    .grid-item:nth-child(6n+1) { background-color: var(--pastel-pink); }
    .grid-item:nth-child(6n+2) { background-color: var(--pastel-blue); }
    .grid-item:nth-child(6n+3) { background-color: var(--pastel-purple); }
    .grid-item:nth-child(6n+4) { background-color: var(--pastel-yellow); }
    .grid-item:nth-child(6n+5) { background-color: var(--pastel-green); }
    .grid-item:nth-child(6n+6) { background-color: var(--pastel-orange); }
    .grid-item:hover {
      transform: translateY(-5px);
      box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
    }
    .grid-header {
      padding: 15px;
      display: flex; flex-direction: column;
      background-color: rgba(255, 255, 255, 0.7);
      backdrop-filter: blur(5px);
      border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    }
    .grid-header-top {
      display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px;
    }
    .rank-badge {
      background-color: #1a202c; color: white; font-size: 0.8rem; font-weight: 600;
      padding: 4px 8px; border-radius: 50px;
    }
    .grid-header h3 {
      margin: 0; font-size: 1.2rem; font-weight: 700;
      white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
    }
    .grid-meta {
      display: flex; justify-content: space-between; align-items: center; font-size: 0.9rem;
    }
    .owner-info { color: var(--text-secondary); font-weight: 500; }
    .likes-counter {
      display: flex; align-items: center; color: #e53e3e; font-weight: 600;
    }
    .likes-counter span { margin-left: 4px; }
    .grid-actions {
      padding: 10px 15px; text-align: right; background-color: rgba(255, 255, 255, 0.7);
      backdrop-filter: blur(5px); position: absolute; bottom: 0; left: 0; right: 0;
      z-index: 10; display: flex; justify-content: flex-end;
    }
    .open-link {
      text-decoration: none; color: #2c5282; font-weight: 600;
      padding: 5px 10px; border-radius: 5px; transition: all 0.2s;
      background-color: rgba(237, 242, 247, 0.8);
    }
    .open-link:hover { background-color: #e2e8f0; }
    .grid-content {
      position: absolute; top: 0; left: 0; width: 100%; height: 100%;
      padding-top: 85px; padding-bottom: 45px;
    }
    .iframe-container {
      width: 100%; height: 100%; overflow: hidden; position: relative;
    }
    .grid-content iframe {
      transform: scale(0.7); transform-origin: top left;
      width: 142.857%; height: 142.857%; border: none; border-radius: 0;
    }
    .error-placeholder {
      position: absolute; top: 0; left: 0; width: 100%; height: 100%;
      display: flex; flex-direction: column; justify-content: center; align-items: center;
      padding: 20px; background-color: rgba(255, 255, 255, 0.9);
      text-align: center;
    }
    .error-emoji {
      font-size: 6rem; margin-bottom: 1.5rem;
      animation: bounce 1s infinite alternate;
      text-shadow: 0 10px 20px rgba(0,0,0,0.1);
    }
    @keyframes bounce {
      from { transform: translateY(0px) scale(1); }
      to { transform: translateY(-15px) scale(1.1); }
    }
    .pagination {
      display: flex; justify-content: center; align-items: center; gap: 10px;
      margin: 2rem 0;
    }
    .pagination-button {
      background-color: white; border: none; padding: 10px 20px; border-radius: 10px;
      font-size: 1rem; font-weight: 600; cursor: pointer; transition: all 0.2s;
      color: var(--text-primary); box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    }
    .pagination-button:hover {
      background-color: #f8f9fa; box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    }
    .pagination-button.active {
      background-color: var(--pastel-purple); color: #4a5568;
    }
    .pagination-button:disabled {
      background-color: #edf2f7; color: #a0aec0;
      cursor: default; box-shadow: none;
    }
    .loading {
      position: fixed; top: 0; left: 0; right: 0; bottom: 0;
      background-color: rgba(255, 255, 255, 0.8); backdrop-filter: blur(5px);
      display: flex; justify-content: center; align-items: center; z-index: 1000;
    }
    .loading-content { text-align: center; }
    .loading-spinner {
      width: 60px; height: 60px; border: 5px solid #e2e8f0;
      border-top-color: var(--pastel-purple); border-radius: 50%;
      animation: spin 1s linear infinite; margin: 0 auto 15px;
    }
    .loading-text {
      font-size: 1.2rem; font-weight: 600; color: #4a5568;
    }
    .loading-error {
      display: none; margin-top: 10px; color: #e53e3e; font-size: 0.9rem;
    }
    .stats-window { margin-top: 2rem; margin-bottom: 2rem; }
    .stats-header {
      display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem;
    }
    .stats-title { font-size: 1.5rem; font-weight: 700; color: #2d3748; }
    .stats-toggle {
      background-color: var(--pastel-blue); border: none; padding: 8px 16px;
      border-radius: 20px; font-weight: 600; cursor: pointer; transition: all 0.2s;
    }
    .stats-toggle:hover { background-color: var(--pastel-purple); }
    .stats-content {
      background-color: white; border-radius: 10px; padding: 20px;
      box-shadow: var(--box-shadow); max-height: 0; overflow: hidden;
      transition: max-height 0.5s ease-out;
    }
    .stats-content.open { max-height: 600px; }
    .chart-container { width: 100%; height: 500px; }
    @media (max-width: 768px) {
      body { padding: 1rem; }
      .grid-container { grid-template-columns: 1fr; }
      .search-bar { flex-direction: column; padding: 10px; }
      .search-bar input { width: 100%; margin-bottom: 10px; }
      .search-bar .refresh-btn { width: 100%; justify-content: center; }
      .pagination { flex-wrap: wrap; }
      .chart-container { height: 300px; }
    }
    /* 탭 스타일 추가 */
    .tab-nav {
      display: flex; gap: 20px; justify-content: center; margin-bottom: 20px;
    }
    .tab-button {
      padding: 10px 20px; border-radius: 20px; border: none; cursor: pointer;
      background-color: #ffffffcc; font-weight: 600; transition: 0.2s;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    }
    .tab-button:hover {
      background-color: var(--pastel-green);
    }
    .tab-button.active {
      background-color: var(--pastel-purple);
      color: #4a5568;
    }
    .tab-content { display: none; }
    .tab-content.active { display: block; }
  </style>
</head>
<body>
  <div class="container">
    <div class="mac-window">
      <div class="mac-toolbar">
        <div class="mac-buttons">
          <div class="mac-button mac-close"></div>
          <div class="mac-button mac-minimize"></div>
          <div class="mac-button mac-maximize"></div>
        </div>
        <div class="mac-title">Huggingface Explorer</div>
      </div>
      
      <div class="mac-content">
        <div class="header">
          <h1>HF Space Leaderboard</h1>
          <p>Discover the top 50 trending spaces from Huggingface</p>
        </div>
        
        <!-- 탭 네비게이션 -->
        <div class="tab-nav">
          <button class="tab-button active" data-tab="leaderboardTab">리더보드</button>
          <button class="tab-button" data-tab="customTab">두 번째 탭</button>
        </div>
        
        <!-- 리더보드 탭 -->
        <div id="leaderboardTab" class="tab-content active">
          <!-- Stats Section (원본) -->
          <div class="stats-window mac-window">
            <div class="mac-toolbar">
              <div class="mac-buttons">
                <div class="mac-button mac-close"></div>
                <div class="mac-button mac-minimize"></div>
                <div class="mac-button mac-maximize"></div>
              </div>
              <div class="mac-title">Creator Statistics</div>
            </div>
            <div class="mac-content">
              <div class="stats-header">
                <div class="stats-title">Top 30 Creators by Number of Spaces</div>
                <button id="statsToggle" class="stats-toggle">Show Stats</button>
              </div>
              <div id="statsContent" class="stats-content">
                <div class="chart-container">
                  <canvas id="creatorStatsChart"></canvas>
                </div>
              </div>
            </div>
          </div>
          
          <div class="search-bar">
            <input type="text" id="searchInput" placeholder="Search by name, owner, or tags..." />
            <button id="refreshButton" class="refresh-btn">
              <span class="refresh-icon"></span>
              Refresh
            </button>
          </div>
          <div id="gridContainer" class="grid-container"></div>
          <div id="pagination" class="pagination"></div>
        </div>
        
        <!-- 두 번째 탭(커스텀 스페이스) -->
        <div id="customTab" class="tab-content">
          <h2 style="text-align:center; margin-bottom:1rem;">지정된 Huggingface URL 리스트</h2>
          <div id="customGridContainer" class="grid-container"></div>
        </div>
        
      </div>
    </div>
  </div>
  
  <div id="loadingIndicator" class="loading" style="display:none;">
    <div class="loading-content">
      <div class="loading-spinner"></div>
      <div class="loading-text">Loading amazing spaces...</div>
      <div id="loadingError" class="loading-error">
        If this takes too long, try refreshing the page.
      </div>
    </div>
  </div>
  
  <script>
    const elements = {
      gridContainer: document.getElementById('gridContainer'),
      customGridContainer: document.getElementById('customGridContainer'),
      loadingIndicator: document.getElementById('loadingIndicator'),
      loadingError: document.getElementById('loadingError'),
      searchInput: document.getElementById('searchInput'),
      refreshButton: document.getElementById('refreshButton'),
      pagination: document.getElementById('pagination'),
      statsToggle: document.getElementById('statsToggle'),
      statsContent: document.getElementById('statsContent'),
      creatorStatsChart: document.getElementById('creatorStatsChart')
    };
    
    const state = {
      isLoading: false,
      spaces: [],
      currentPage: 0,
      itemsPerPage: 50, // 50개
      totalItems: 0,
      loadingTimeout: null,
      staticModeAttempted: {},
      statsVisible: false,
      chartInstance: null,
      topOwners: [],
      iframeStatuses: {},
      // 두 번째 탭용
      customSpaces: []
    };
    
    const iframeLoader = {
      checkQueue: {},
      maxAttempts: 5,
      checkInterval: 5000,
      
      startChecking: function(iframe, owner, name, title, spaceKey) {
        this.checkQueue[spaceKey] = {
          iframe, owner, name, title,
          attempts: 0,
          status: 'loading'
        };
        this.checkIframeStatus(spaceKey);
      },
      checkIframeStatus: function(spaceKey) {
        if (!this.checkQueue[spaceKey]) return;
        const item = this.checkQueue[spaceKey];
        const iframe = item.iframe;
        
        if (item.status !== 'loading') {
          delete this.checkQueue[spaceKey];
          return;
        }
        
        item.attempts++;
        try {
          if (!iframe || !iframe.parentNode) {
            delete this.checkQueue[spaceKey];
            return;
          }
          
          try {
            const hasContent = iframe.contentWindow && iframe.contentWindow.document && iframe.contentWindow.document.body;
            if (hasContent && iframe.contentWindow.document.body.innerHTML.length > 100) {
              const bodyText = iframe.contentWindow.document.body.textContent.toLowerCase();
              if (bodyText.includes('forbidden') ||
                  bodyText.includes('404') ||
                  bodyText.includes('not found') ||
                  bodyText.includes('error')) {
                item.status = 'error';
                handleIframeError(iframe, item.owner, item.name, item.title);
              } else {
                item.status = 'success';
              }
              delete this.checkQueue[spaceKey];
              return;
            }
          } catch(e) {}
          
          const rect = iframe.getBoundingClientRect();
          if (rect.width > 50 && rect.height > 50 && item.attempts > 2) {
            item.status = 'success';
            delete this.checkQueue[spaceKey];
            return;
          }
          
          if (item.attempts >= this.maxAttempts) {
            if (iframe.offsetWidth > 0 && iframe.offsetHeight > 0) {
              item.status = 'success';
            } else {
              item.status = 'error';
              handleIframeError(iframe, item.owner, item.name, item.title);
            }
            delete this.checkQueue[spaceKey];
            return;
          }
          
          const nextDelay = this.checkInterval * Math.pow(1.5, item.attempts - 1);
          setTimeout(() => this.checkIframeStatus(spaceKey), nextDelay);
        } catch(e) {
          console.error('Error checking iframe status:', e);
          if (item.attempts >= this.maxAttempts) {
            item.status = 'error';
            handleIframeError(iframe, item.owner, item.name, item.title);
            delete this.checkQueue[spaceKey];
          } else {
            setTimeout(() => this.checkIframeStatus(spaceKey), this.checkInterval);
          }
        }
      }
    };
    
    function toggleStats() {
      state.statsVisible = !state.statsVisible;
      elements.statsContent.classList.toggle('open', state.statsVisible);
      elements.statsToggle.textContent = state.statsVisible ? 'Hide Stats' : 'Show Stats';
      if (state.statsVisible && state.topOwners.length > 0) {
        renderCreatorStats();
      }
    }
    
    function renderCreatorStats() {
      if (state.chartInstance) {
        state.chartInstance.destroy();
      }
      const ctx = elements.creatorStatsChart.getContext('2d');
      const labels = state.topOwners.map(item => item[0]);
      const data = state.topOwners.map(item => item[1]);
      const colors = [];
      for (let i = 0; i < labels.length; i++) {
        const hue = (i * 360 / labels.length) % 360;
        colors.push(`hsla(${hue}, 70%, 80%, 0.7)`);
      }
      state.chartInstance = new Chart(ctx, {
        type: 'bar',
        data: {
          labels: labels,
          datasets: [{
            label: 'Number of Spaces',
            data: data,
            backgroundColor: colors,
            borderColor: colors.map(c => c.replace('0.7','1')),
            borderWidth: 1
          }]
        },
        options: {
          indexAxis: 'y',
          responsive: true,
          maintainAspectRatio: false,
          plugins: {
            legend: { display: false },
            tooltip: {
              callbacks: {
                title: function(tooltipItems) { return tooltipItems[0].label; },
                label: function(context) { return `Spaces: ${context.raw}`; }
              }
            }
          },
          scales: {
            x: {
              beginAtZero: true,
              title: { display: true, text: 'Number of Spaces' }
            },
            y: {
              title: { display: true, text: 'Creator ID' },
              ticks: {
                autoSkip: false,
                font: function(context) {
                  const defaultSize = 11;
                  return {
                    size: labels.length > 20 ? defaultSize - 1 : defaultSize
                  };
                }
              }
            }
          }
        }
      });
    }
    
    async function loadSpaces(page=0) {
      setLoading(true);
      try {
        const searchText = elements.searchInput.value;
        const offset = page * state.itemsPerPage;
        const timeoutPromise = new Promise((_, reject) => 
          setTimeout(() => reject(new Error('Request timeout')), 30000)
        );
        const fetchPromise = fetch(`/api/trending-spaces?search=${encodeURIComponent(searchText)}&offset=${offset}&limit=${state.itemsPerPage}`);
        const response = await Promise.race([fetchPromise, timeoutPromise]);
        const data = await response.json();
        
        state.spaces = data.spaces;
        state.totalItems = data.total;
        state.currentPage = page;
        state.topOwners = data.top_owners || [];
        
        renderGrid(data.spaces, elements.gridContainer);
        renderPagination();
        
        if (state.statsVisible && state.topOwners.length > 0) {
          renderCreatorStats();
        }
      } catch(e) {
        console.error(e);
        elements.gridContainer.innerHTML = `
          <div style="grid-column: 1/-1; text-align: center; padding: 40px;">
            <div style="font-size: 3rem; margin-bottom: 20px;">⚠️</div>
            <h3 style="margin-bottom: 10px;">Unable to load spaces</h3>
            <p style="color: #666;">Please try refreshing the page.</p>
            <button id="retryButton" style="margin-top: 20px; padding: 10px 20px; background: var(--pastel-purple); border: none; border-radius: 5px; cursor: pointer;">
              Try Again
            </button>
          </div>
        `;
        document.getElementById('retryButton')?.addEventListener('click', () => loadSpaces(0));
        renderPagination();
      } finally {
        setLoading(false);
      }
    }
    
    function renderPagination() {
      elements.pagination.innerHTML = '';
      const totalPages = Math.ceil(state.totalItems / state.itemsPerPage);
      const prevButton = document.createElement('button');
      prevButton.className = `pagination-button ${state.currentPage === 0 ? 'disabled' : ''}`;
      prevButton.textContent = 'Previous';
      prevButton.disabled = state.currentPage === 0;
      prevButton.addEventListener('click', () => {
        if (state.currentPage > 0) loadSpaces(state.currentPage - 1);
      });
      elements.pagination.appendChild(prevButton);
      
      const maxButtons = 7;
      let startPage = Math.max(0, state.currentPage - Math.floor(maxButtons / 2));
      let endPage = Math.min(totalPages - 1, startPage + maxButtons - 1);
      if (endPage - startPage + 1 < maxButtons) {
        startPage = Math.max(0, endPage - maxButtons + 1);
      }
      for (let i = startPage; i <= endPage; i++) {
        const pageButton = document.createElement('button');
        pageButton.className = `pagination-button ${i === state.currentPage ? 'active' : ''}`;
        pageButton.textContent = i + 1;
        pageButton.addEventListener('click', () => {
          if (i !== state.currentPage) {
            loadSpaces(i);
          }
        });
        elements.pagination.appendChild(pageButton);
      }
      
      const nextButton = document.createElement('button');
      nextButton.className = `pagination-button ${state.currentPage >= totalPages - 1 ? 'disabled' : ''}`;
      nextButton.textContent = 'Next';
      nextButton.disabled = state.currentPage >= totalPages - 1;
      nextButton.addEventListener('click', () => {
        if (state.currentPage < totalPages - 1) {
          loadSpaces(state.currentPage + 1);
        }
      });
      elements.pagination.appendChild(nextButton);
    }
    
    function handleIframeError(iframe, owner, name, title) {
      const container = iframe.parentNode;
      const errorPlaceholder = document.createElement('div');
      errorPlaceholder.className = 'error-placeholder';
      
      const errorMessage = document.createElement('p');
      errorMessage.textContent = `"${title}" space couldn't be loaded`;
      errorPlaceholder.appendChild(errorMessage);
      
      const directLink = document.createElement('a');
      directLink.href = `https://huggingface.co/spaces/${owner}/${name}`;
      directLink.target = '_blank';
      directLink.textContent = 'Visit HF Space';
      directLink.style.color = '#3182ce';
      directLink.style.marginTop = '10px';
      directLink.style.display = 'inline-block';
      directLink.style.padding = '8px 16px';
      directLink.style.background = '#ebf8ff';
      directLink.style.borderRadius = '5px';
      directLink.style.fontWeight = '600';
      errorPlaceholder.appendChild(directLink);
      
      iframe.style.display = 'none';
      container.appendChild(errorPlaceholder);
    }
    
    function renderGrid(spaces, containerEl) {
      containerEl.innerHTML = '';
      if (!spaces || spaces.length === 0) {
        const noResultsMsg = document.createElement('p');
        noResultsMsg.textContent = 'No spaces found.';
        noResultsMsg.style.padding = '2rem';
        noResultsMsg.style.textAlign = 'center';
        noResultsMsg.style.fontStyle = 'italic';
        noResultsMsg.style.color = '#718096';
        containerEl.appendChild(noResultsMsg);
        return;
      }
      
      spaces.forEach(item => {
        try {
          const { url, title, likes_count, owner, name, rank } = item;
          if (owner === 'None') return;
          
          const gridItem = document.createElement('div');
          gridItem.className = 'grid-item';
          
          const header = document.createElement('div');
          header.className = 'grid-header';
          
          const headerTop = document.createElement('div');
          headerTop.className = 'grid-header-top';
          
          const titleEl = document.createElement('h3');
          titleEl.textContent = title;
          titleEl.title = title;
          headerTop.appendChild(titleEl);
          
          const rankBadge = document.createElement('div');
          rankBadge.className = 'rank-badge';
          rankBadge.textContent = `#${rank}`;
          headerTop.appendChild(rankBadge);
          header.appendChild(headerTop);
          
          const metaInfo = document.createElement('div');
          metaInfo.className = 'grid-meta';
          
          const ownerEl = document.createElement('div');
          ownerEl.className = 'owner-info';
          ownerEl.textContent = `by ${owner}`;
          metaInfo.appendChild(ownerEl);
          
          const likesCounter = document.createElement('div');
          likesCounter.className = 'likes-counter';
          likesCounter.innerHTML = '♥ <span>' + likes_count + '</span>';
          metaInfo.appendChild(likesCounter);
          
          header.appendChild(metaInfo);
          gridItem.appendChild(header);
          
          const content = document.createElement('div');
          content.className = 'grid-content';
          
          const iframeContainer = document.createElement('div');
          iframeContainer.className = 'iframe-container';
          
          const iframe = document.createElement('iframe');
          const directUrl = createDirectUrl(owner, name);
          iframe.src = directUrl;
          iframe.title = title;
          iframe.allow = 'accelerometer; camera; encrypted-media; geolocation; gyroscope;';
          iframe.setAttribute('allowfullscreen', '');
          iframe.setAttribute('frameborder', '0');
          iframe.loading = 'lazy';
          
          const spaceKey = `${owner}/${name}`;
          state.iframeStatuses[spaceKey] = 'loading';
          
          iframe.onload = function() {
            iframeLoader.startChecking(iframe, owner, name, title, spaceKey);
          };
          iframe.onerror = function() {
            handleIframeError(iframe, owner, name, title);
            state.iframeStatuses[spaceKey] = 'error';
          };
          setTimeout(() => {
            if (state.iframeStatuses[spaceKey] === 'loading') {
              handleIframeError(iframe, owner, name, title);
              state.iframeStatuses[spaceKey] = 'error';
            }
          }, 30000);
          
          iframeContainer.appendChild(iframe);
          content.appendChild(iframeContainer);
          
          const actions = document.createElement('div');
          actions.className = 'grid-actions';
          
          const linkEl = document.createElement('a');
          linkEl.href = url;
          linkEl.target = '_blank';
          linkEl.className = 'open-link';
          linkEl.textContent = 'Open in new window';
          actions.appendChild(linkEl);
          
          gridItem.appendChild(content);
          gridItem.appendChild(actions);
          
          containerEl.appendChild(gridItem);
        } catch(e) {
          console.error('Item rendering error:', e);
        }
      });
    }
    
    function createDirectUrl(owner, name) {
      try {
        name = name.replace(/\\./g, '-').replace(/_/g, '-').toLowerCase();
        owner = owner.toLowerCase();
        return \`https://\${owner}-\${name}.hf.space\`;
      } catch(e) {
        console.error(e);
        return 'https://huggingface.co';
      }
    }
    
    elements.searchInput.addEventListener('input', () => {
      clearTimeout(state.searchTimeout);
      state.searchTimeout = setTimeout(() => loadSpaces(0), 300);
    });
    elements.searchInput.addEventListener('keyup', (event) => {
      if (event.key === 'Enter') {
        loadSpaces(0);
      }
    });
    elements.refreshButton.addEventListener('click', () => loadSpaces(0));
    elements.statsToggle.addEventListener('click', toggleStats);
    
    document.querySelectorAll('.mac-button').forEach(button => {
      button.addEventListener('click', (e) => {
        e.preventDefault();
      });
    });
    
    function setLoading(isLoading) {
      state.isLoading = isLoading;
      elements.loadingIndicator.style.display = isLoading ? 'flex' : 'none';
      if (isLoading) {
        elements.refreshButton.classList.add('refreshing');
        clearTimeout(state.loadingTimeout);
        state.loadingTimeout = setTimeout(() => {
          elements.loadingError.style.display = 'block';
        }, 10000);
      } else {
        elements.refreshButton.classList.remove('refreshing');
        clearTimeout(state.loadingTimeout);
        elements.loadingError.style.display = 'none';
      }
    }
    
    // 탭 전환 기능
    const tabButtons = document.querySelectorAll('.tab-button');
    const tabContents = document.querySelectorAll('.tab-content');
    tabButtons.forEach(btn => {
      btn.addEventListener('click', () => {
        tabButtons.forEach(b => b.classList.remove('active'));
        tabContents.forEach(tc => tc.classList.remove('active'));
        btn.classList.add('active');
        const tabId = btn.getAttribute('data-tab');
        document.getElementById(tabId).classList.add('active');
      });
    });
    
    // 두 번째 탭(커스텀 스페이스) 불러오기
    async function loadCustomSpaces() {
      try {
        const resp = await fetch('/api/custom-spaces');
        const data = await resp.json();
        state.customSpaces = data.spaces || [];
        renderGrid(state.customSpaces, elements.customGridContainer);
      } catch(e) {
        console.error(e);
        elements.customGridContainer.innerHTML = '<p style="text-align:center; color:red;">Error loading custom spaces.</p>';
      }
    }
    
    // 초기 실행
    window.addEventListener('load', function() {
      // 리더보드 로드
      loadSpaces(0);
      // 두 번째 탭(커스텀)도 같이 로드
      loadCustomSpaces();
    });
    
    // 안전장치
    setTimeout(() => {
      if (state.isLoading) {
        setLoading(false);
        elements.gridContainer.innerHTML = \`
          <div style="grid-column: 1/-1; text-align: center; padding: 40px;">
            <div style="font-size: 3rem; margin-bottom: 20px;">⏱️</div>
            <h3 style="margin-bottom: 10px;">Loading is taking longer than expected</h3>
            <p style="color: #666;">Please try refreshing the page.</p>
            <button onClick="window.location.reload()" style="margin-top: 20px; padding: 10px 20px; background: var(--pastel-purple); border: none; border-radius: 5px; cursor: pointer;">
              Reload Page
            </button>
          </div>
        \`;
      }
    }, 20000);
  </script>
</body>
</html>
''')
    
    # Huggingface Spaces에서 보통 port=7860 을 많이 씁니다.
    app.run(host='0.0.0.0', port=7860)