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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>Hugging Face Model Explorer</title>
    <script src="https://cdn.tailwindcss.com"></script>
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
    <style>
        .gradient-bg {
            background: linear-gradient(135deg, #6e8efb, #a777e3);
        }
        .model-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }
        .chat-message-user {
            border-radius: 18px 18px 4px 18px;
        }
        .chat-message-ai {
            border-radius: 18px 18px 18px 4px;
        }
        .loading-dots::after {
            content: '.';
            animation: dots 1.5s steps(5, end) infinite;
        }
        @keyframes dots {
            0%, 20% { content: '.'; }
            40% { content: '..'; }
            60% { content: '...'; }
            80%, 100% { content: ''; }
        }
    </style>
</head>
<body class="bg-gray-50 min-h-screen">
    <div class="gradient-bg text-white py-6 shadow-lg">
        <div class="container mx-auto px-4">
            <div class="flex items-center justify-between">
                <div class="flex items-center space-x-3">
                    <i class="fas fa-robot text-3xl"></i>
                    <h1 class="text-2xl md:text-3xl font-bold">Hugging Face Model Explorer</h1>
                </div>
                <div class="flex items-center space-x-4">
                    <button id="darkModeToggle" class="p-2 rounded-full hover:bg-white/10 transition">
                        <i class="fas fa-moon"></i>
                    </button>
                    <a href="https://huggingface.co" target="_blank" class="bg-white/20 hover:bg-white/30 px-4 py-2 rounded-full text-sm font-medium transition flex items-center space-x-2">
                        <i class="fab fa-hubspot"></i>
                        <span>Hugging Face</span>
                    </a>
                </div>
            </div>
            <p class="mt-3 text-white/90 max-w-2xl">Explore, interact with, and generate content using thousands of AI models from Hugging Face</p>
        </div>
    </div>

    <div class="container mx-auto px-4 py-8">
        <!-- Auth Section -->
        <div class="bg-white rounded-xl shadow-md p-6 mb-8">
            <h2 class="text-xl font-semibold mb-4 flex items-center">
                <i class="fas fa-key mr-2 text-purple-600"></i>
                Authentication
            </h2>
            <div class="grid md:grid-cols-3 gap-6">
                <div class="md:col-span-2">
                    <label for="accessToken" class="block text-sm font-medium text-gray-700 mb-1">Hugging Face Access Token</label>
                    <div class="flex">
                        <input type="password" id="accessToken" placeholder="hf_xxxxxxxxxxxxxxxx" class="flex-1 px-4 py-2 border border-gray-300 rounded-l-lg focus:ring-2 focus:ring-purple-500 focus:border-purple-500">
                        <button id="toggleTokenVisibility" class="px-3 bg-gray-100 border border-l-0 border-gray-300 rounded-r-lg text-gray-600 hover:bg-gray-200">
                            <i class="fas fa-eye"></i>
                        </button>
                    </div>
                    <p class="mt-2 text-sm text-gray-500">Get your token from <a href="https://huggingface.co/settings/tokens" target="_blank" class="text-purple-600 hover:underline">Hugging Face settings</a></p>
                </div>
                <div class="flex items-end">
                    <button id="saveTokenBtn" class="w-full bg-purple-600 hover:bg-purple-700 text-white py-2 px-4 rounded-lg transition flex items-center justify-center space-x-2">
                        <i class="fas fa-save"></i>
                        <span>Save Token</span>
                    </button>
                </div>
            </div>
        </div>

        <!-- Model Selection Section -->
        <div class="bg-white rounded-xl shadow-md p-6 mb-8">
            <div class="flex justify-between items-center mb-4">
                <h2 class="text-xl font-semibold flex items-center">
                    <i class="fas fa-cube mr-2 text-blue-600"></i>
                    Model Selection
                </h2>
                <div class="flex space-x-3">
                    <div class="relative">
                        <select id="modelTypeFilter" class="appearance-none bg-gray-100 border border-gray-300 rounded-lg px-4 py-2 pr-8 text-sm focus:outline-none focus:ring-2 focus:ring-blue-500">
                            <option value="all">All Types</option>
                            <option value="text">Text</option>
                            <option value="image">Image</option>
                            <option value="audio">Audio</option>
                            <option value="multimodal">Multimodal</option>
                        </select>
                        <i class="fas fa-chevron-down absolute right-3 top-2.5 text-gray-500 text-xs"></i>
                    </div>
                    <div class="relative">
                        <input type="text" id="modelSearch" placeholder="Search models..." class="bg-gray-100 border border-gray-300 rounded-lg px-4 py-2 pl-10 text-sm focus:outline-none focus:ring-2 focus:ring-blue-500 w-48">
                        <i class="fas fa-search absolute left-3 top-2.5 text-gray-500"></i>
                    </div>
                </div>
            </div>
            
            <div id="modelLoading" class="flex justify-center items-center py-12">
                <div class="animate-spin rounded-full h-12 w-12 border-t-2 border-b-2 border-blue-500"></div>
            </div>
            
            <div id="modelsContainer" class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-4 hidden">
                <!-- Models will be populated here -->
            </div>
            
            <div id="pagination" class="flex justify-center mt-6 space-x-2 hidden">
                <button id="prevPage" class="px-4 py-2 bg-gray-100 rounded-lg hover:bg-gray-200 disabled:opacity-50">
                    <i class="fas fa-chevron-left"></i>
                </button>
                <div id="pageNumbers" class="flex space-x-1"></div>
                <button id="nextPage" class="px-4 py-2 bg-gray-100 rounded-lg hover:bg-gray-200 disabled:opacity-50">
                    <i class="fas fa-chevron-right"></i>
                </button>
            </div>
        </div>

        <!-- Interaction Section -->
        <div id="interactionSection" class="hidden">
            <div class="grid grid-cols-1 lg:grid-cols-3 gap-8">
                <!-- Model Info Card -->
                <div class="bg-white rounded-xl shadow-md p-6 h-fit">
                    <div class="flex justify-between items-start mb-4">
                        <h2 class="text-xl font-semibold flex items-center">
                            <i class="fas fa-info-circle mr-2 text-green-600"></i>
                            Selected Model
                        </h2>
                        <button id="clearModelBtn" class="text-sm text-red-500 hover:text-red-700 flex items-center">
                            <i class="fas fa-times mr-1"></i> Clear
                        </button>
                    </div>
                    <div id="selectedModelInfo">
                        <div class="flex items-center mb-4">
                            <div id="modelAvatar" class="w-16 h-16 rounded-lg bg-gray-200 flex items-center justify-center mr-4">
                                <i class="fas fa-cube text-2xl text-gray-500"></i>
                            </div>
                            <div>
                                <h3 id="modelName" class="font-bold text-lg">No model selected</h3>
                                <p id="modelAuthor" class="text-sm text-gray-500">Select a model to begin</p>
                            </div>
                        </div>
                        <div class="space-y-3">
                            <div>
                                <span class="text-sm font-medium text-gray-500">Type:</span>
                                <span id="modelType" class="ml-2 text-sm">-</span>
                            </div>
                            <div>
                                <span class="text-sm font-medium text-gray-500">Tasks:</span>
                                <div id="modelTasks" class="flex flex-wrap gap-2 mt-1">
                                    <span class="text-xs px-2 py-1 bg-gray-100 rounded-full">Select a model</span>
                                </div>
                            </div>
                            <div>
                                <span class="text-sm font-medium text-gray-500">Downloads:</span>
                                <span id="modelDownloads" class="ml-2 text-sm">-</span>
                            </div>
                            <div>
                                <span class="text-sm font-medium text-gray-500">Last Updated:</span>
                                <span id="modelUpdated" class="ml-2 text-sm">-</span>
                            </div>
                        </div>
                    </div>
                </div>

                <!-- Chat Interface -->
                <div class="lg:col-span-2">
                    <div class="bg-white rounded-xl shadow-md overflow-hidden">
                        <!-- Chat Header -->
                        <div class="bg-gray-50 px-6 py-4 border-b flex justify-between items-center">
                            <h2 class="font-semibold flex items-center">
                                <i class="fas fa-comments mr-2 text-indigo-600"></i>
                                Model Interaction
                            </h2>
                            <div id="modelStatus" class="flex items-center text-sm">
                                <span class="w-2 h-2 rounded-full bg-gray-400 mr-2"></span>
                                <span>Disconnected</span>
                            </div>
                        </div>
                        
                        <!-- Chat Messages -->
                        <div id="chatContainer" class="h-96 overflow-y-auto p-4 space-y-4 bg-gray-50">
                            <div class="text-center py-10 text-gray-500">
                                <i class="fas fa-comment-dots text-3xl mb-2"></i>
                                <p>Select a model and start chatting or generating content</p>
                            </div>
                        </div>
                        
                        <!-- Input Area -->
                        <div class="p-4 border-t bg-white">
                            <div id="textInputSection">
                                <div class="flex space-x-2 mb-2">
                                    <button id="clearChatBtn" class="px-3 py-1 bg-gray-100 rounded-lg text-sm hover:bg-gray-200">
                                        <i class="fas fa-trash-alt mr-1"></i> Clear
                                    </button>
                                    <button id="examplePromptBtn" class="px-3 py-1 bg-gray-100 rounded-lg text-sm hover:bg-gray-200">
                                        <i class="fas fa-lightbulb mr-1"></i> Examples
                                    </button>
                                </div>
                                <div class="flex">
                                    <textarea id="userInput" rows="2" placeholder="Type your message or prompt here..." class="flex-1 px-4 py-3 border border-gray-300 rounded-l-lg focus:ring-2 focus:ring-indigo-500 focus:border-indigo-500 resize-none"></textarea>
                                    <button id="sendMessageBtn" class="px-6 bg-indigo-600 hover:bg-indigo-700 text-white rounded-r-lg transition">
                                        <i class="fas fa-paper-plane"></i>
                                    </button>
                                </div>
                            </div>
                            
                            <div id="imageInputSection" class="hidden">
                                <div class="mb-4">
                                    <label class="block text-sm font-medium text-gray-700 mb-2">Prompt for Image Generation</label>
                                    <textarea id="imagePrompt" rows="2" placeholder="Describe the image you want to generate..." class="w-full px-4 py-3 border border-gray-300 rounded-lg focus:ring-2 focus:ring-indigo-500 focus:border-indigo-500 resize-none"></textarea>
                                </div>
                                <div class="grid grid-cols-2 gap-4">
                                    <div>
                                        <label class="block text-sm font-medium text-gray-700 mb-1">Number of Images</label>
                                        <select id="imageCount" class="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-indigo-500">
                                            <option value="1">1</option>
                                            <option value="2">2</option>
                                            <option value="4">4</option>
                                        </select>
                                    </div>
                                    <div>
                                        <label class="block text-sm font-medium text-gray-700 mb-1">Image Size</label>
                                        <select id="imageSize" class="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-indigo-500">
                                            <option value="256x256">256x256</option>
                                            <option value="512x512">512x512</option>
                                            <option value="1024x1024">1024x1024</option>
                                        </select>
                                    </div>
                                </div>
                                <button id="generateImageBtn" class="w-full mt-4 bg-indigo-600 hover:bg-indigo-700 text-white py-3 px-4 rounded-lg transition flex items-center justify-center space-x-2">
                                    <i class="fas fa-magic"></i>
                                    <span>Generate Image</span>
                                </button>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>

    <!-- Example Prompts Modal -->
    <div id="examplePromptsModal" class="fixed inset-0 bg-black bg-opacity-50 flex items-center justify-center z-50 hidden">
        <div class="bg-white rounded-xl shadow-xl w-full max-w-2xl max-h-[80vh] overflow-hidden">
            <div class="flex justify-between items-center px-6 py-4 border-b">
                <h3 class="text-lg font-semibold">Example Prompts</h3>
                <button id="closeExampleModal" class="text-gray-500 hover:text-gray-700">
                    <i class="fas fa-times"></i>
                </button>
            </div>
            <div class="p-6 overflow-y-auto">
                <div class="grid grid-cols-1 md:grid-cols-2 gap-4">
                    <div class="bg-blue-50 p-4 rounded-lg">
                        <h4 class="font-medium text-blue-800 mb-2">Text Generation</h4>
                        <ul class="space-y-2 text-sm">
                            <li class="cursor-pointer hover:bg-blue-100 p-2 rounded" onclick="useExamplePrompt(this)">Write a short story about a robot discovering emotions</li>
                            <li class="cursor-pointer hover:bg-blue-100 p-2 rounded" onclick="useExamplePrompt(this)">Explain quantum computing in simple terms</li>
                            <li class="cursor-pointer hover:bg-blue-100 p-2 rounded" onclick="useExamplePrompt(this)">Generate a poem about the changing seasons</li>
                        </ul>
                    </div>
                    <div class="bg-purple-50 p-4 rounded-lg">
                        <h4 class="font-medium text-purple-800 mb-2">Image Generation</h4>
                        <ul class="space-y-2 text-sm">
                            <li class="cursor-pointer hover:bg-purple-100 p-2 rounded" onclick="useExamplePrompt(this)">A futuristic cityscape at sunset, digital art</li>
                            <li class="cursor-pointer hover:bg-purple-100 p-2 rounded" onclick="useExamplePrompt(this)">A cute corgi puppy wearing sunglasses on a beach</li>
                            <li class="cursor-pointer hover:bg-purple-100 p-2 rounded" onclick="useExamplePrompt(this)">An astronaut riding a horse in space, surreal art</li>
                        </ul>
                    </div>
                    <div class="bg-green-50 p-4 rounded-lg">
                        <h4 class="font-medium text-green-800 mb-2">Code Generation</h4>
                        <ul class="space-y-2 text-sm">
                            <li class="cursor-pointer hover:bg-green-100 p-2 rounded" onclick="useExamplePrompt(this)">Write a Python function to calculate Fibonacci sequence</li>
                            <li class="cursor-pointer hover:bg-green-100 p-2 rounded" onclick="useExamplePrompt(this)">Create a React component for a login form</li>
                            <li class="cursor-pointer hover:bg-green-100 p-2 rounded" onclick="useExamplePrompt(this)">Generate SQL query to find customers with most orders</li>
                        </ul>
                    </div>
                    <div class="bg-yellow-50 p-4 rounded-lg">
                        <h4 class="font-medium text-yellow-800 mb-2">Translation</h4>
                        <ul class="space-y-2 text-sm">
                            <li class="cursor-pointer hover:bg-yellow-100 p-2 rounded" onclick="useExamplePrompt(this)">Translate 'Hello, how are you?' to French</li>
                            <li class="cursor-pointer hover:bg-yellow-100 p-2 rounded" onclick="useExamplePrompt(this)">Convert this text to Spanish: 'The weather is nice today'</li>
                            <li class="cursor-pointer hover:bg-yellow-100 p-2 rounded" onclick="useExamplePrompt(this)">What does 'こんにちは' mean in English?</li>
                        </ul>
                    </div>
                </div>
            </div>
        </div>
    </div>

    <script>
        // DOM Elements
        const darkModeToggle = document.getElementById('darkModeToggle');
        const accessTokenInput = document.getElementById('accessToken');
        const toggleTokenVisibility = document.getElementById('toggleTokenVisibility');
        const saveTokenBtn = document.getElementById('saveTokenBtn');
        const modelTypeFilter = document.getElementById('modelTypeFilter');
        const modelSearch = document.getElementById('modelSearch');
        const modelsContainer = document.getElementById('modelsContainer');
        const modelLoading = document.getElementById('modelLoading');
        const pagination = document.getElementById('pagination');
        const prevPageBtn = document.getElementById('prevPage');
        const nextPageBtn = document.getElementById('nextPage');
        const pageNumbers = document.getElementById('pageNumbers');
        const interactionSection = document.getElementById('interactionSection');
        const clearModelBtn = document.getElementById('clearModelBtn');
        const modelName = document.getElementById('modelName');
        const modelAuthor = document.getElementById('modelAuthor');
        const modelType = document.getElementById('modelType');
        const modelTasks = document.getElementById('modelTasks');
        const modelDownloads = document.getElementById('modelDownloads');
        const modelUpdated = document.getElementById('modelUpdated');
        const modelAvatar = document.getElementById('modelAvatar');
        const modelStatus = document.getElementById('modelStatus');
        const chatContainer = document.getElementById('chatContainer');
        const userInput = document.getElementById('userInput');
        const sendMessageBtn = document.getElementById('sendMessageBtn');
        const clearChatBtn = document.getElementById('clearChatBtn');
        const examplePromptBtn = document.getElementById('examplePromptBtn');
        const textInputSection = document.getElementById('textInputSection');
        const imageInputSection = document.getElementById('imageInputSection');
        const imagePrompt = document.getElementById('imagePrompt');
        const imageCount = document.getElementById('imageCount');
        const imageSize = document.getElementById('imageSize');
        const generateImageBtn = document.getElementById('generateImageBtn');
        const examplePromptsModal = document.getElementById('examplePromptsModal');
        const closeExampleModal = document.getElementById('closeExampleModal');

        // State
        let currentPage = 1;
        let totalPages = 1;
        let modelsPerPage = 9;
        let allModels = [];
        let filteredModels = [];
        let selectedModel = null;
        let accessToken = localStorage.getItem('hfAccessToken') || '';
        let isDarkMode = localStorage.getItem('darkMode') === 'true';
        let chatHistory = [];

        // Initialize
        document.addEventListener('DOMContentLoaded', () => {
            // Set dark mode if enabled
            if (isDarkMode) {
                enableDarkMode();
            }
            
            // Set saved token if exists
            if (accessToken) {
                accessTokenInput.value = accessToken;
            }
            
            // Load models
            loadModels();
        });

        // Event Listeners
        darkModeToggle.addEventListener('click', toggleDarkMode);
        toggleTokenVisibility.addEventListener('click', toggleTokenVisibilityHandler);
        saveTokenBtn.addEventListener('click', saveAccessToken);
        modelTypeFilter.addEventListener('change', filterModels);
        modelSearch.addEventListener('input', filterModels);
        prevPageBtn.addEventListener('click', () => changePage(-1));
        nextPageBtn.addEventListener('click', () => changePage(1));
        clearModelBtn.addEventListener('click', clearSelectedModel);
        sendMessageBtn.addEventListener('click', sendMessage);
        userInput.addEventListener('keydown', (e) => {
            if (e.key === 'Enter' && !e.shiftKey) {
                e.preventDefault();
                sendMessage();
            }
        });
        clearChatBtn.addEventListener('click', clearChat);
        examplePromptBtn.addEventListener('click', showExamplePrompts);
        closeExampleModal.addEventListener('click', () => {
            examplePromptsModal.classList.add('hidden');
        });
        generateImageBtn.addEventListener('click', generateImage);

        // Functions
        function toggleDarkMode() {
            isDarkMode = !isDarkMode;
            localStorage.setItem('darkMode', isDarkMode);
            
            if (isDarkMode) {
                enableDarkMode();
            } else {
                disableDarkMode();
            }
        }

        function enableDarkMode() {
            document.documentElement.classList.add('dark');
            darkModeToggle.innerHTML = '<i class="fas fa-sun"></i>';
            document.body.classList.add('bg-gray-900');
            document.body.classList.remove('bg-gray-50');
        }

        function disableDarkMode() {
            document.documentElement.classList.remove('dark');
            darkModeToggle.innerHTML = '<i class="fas fa-moon"></i>';
            document.body.classList.remove('bg-gray-900');
            document.body.classList.add('bg-gray-50');
        }

        function toggleTokenVisibilityHandler() {
            const icon = toggleTokenVisibility.querySelector('i');
            if (accessTokenInput.type === 'password') {
                accessTokenInput.type = 'text';
                icon.classList.replace('fa-eye', 'fa-eye-slash');
            } else {
                accessTokenInput.type = 'password';
                icon.classList.replace('fa-eye-slash', 'fa-eye');
            }
        }

        function saveAccessToken() {
            accessToken = accessTokenInput.value.trim();
            if (accessToken) {
                localStorage.setItem('hfAccessToken', accessToken);
                showToast('Access token saved successfully!', 'success');
                loadModels(); // Reload models with new token
            } else {
                showToast('Please enter a valid access token', 'error');
            }
        }

        async function loadModels() {
            if (!accessToken) {
                showToast('Please enter your Hugging Face access token first', 'error');
                return;
            }

            try {
                modelLoading.classList.remove('hidden');
                modelsContainer.classList.add('hidden');
                pagination.classList.add('hidden');
                
                // In a real app, you would fetch from Hugging Face API
                // const response = await fetch('https://huggingface.co/api/models', {
                //     headers: {
                //         'Authorization': `Bearer ${accessToken}`
                //     }
                // });
                // allModels = await response.json();
                
                // For demo purposes, we'll use mock data
                allModels = getMockModels();
                
                filterModels();
                modelLoading.classList.add('hidden');
            } catch (error) {
                console.error('Error loading models:', error);
                showToast('Failed to load models. Check your token and try again.', 'error');
                modelLoading.classList.add('hidden');
            }
        }

        function filterModels() {
            const searchTerm = modelSearch.value.toLowerCase();
            const typeFilter = modelTypeFilter.value;
            
            filteredModels = allModels.filter(model => {
                const matchesSearch = model.name.toLowerCase().includes(searchTerm) || 
                                      model.author.toLowerCase().includes(searchTerm) ||
                                      model.tags.some(tag => tag.toLowerCase().includes(searchTerm));
                
                const matchesType = typeFilter === 'all' || 
                                   (typeFilter === 'text' && model.type === 'text') ||
                                   (typeFilter === 'image' && model.type === 'image') ||
                                   (typeFilter === 'audio' && model.type === 'audio') ||
                                   (typeFilter === 'multimodal' && model.type === 'multimodal');
                
                return matchesSearch && matchesType;
            });
            
            totalPages = Math.ceil(filteredModels.length / modelsPerPage);
            renderModels();
            renderPagination();
        }

        function renderModels() {
            modelsContainer.innerHTML = '';
            
            const startIndex = (currentPage - 1) * modelsPerPage;
            const endIndex = Math.min(startIndex + modelsPerPage, filteredModels.length);
            
            for (let i = startIndex; i < endIndex; i++) {
                const model = filteredModels[i];
                const modelCard = document.createElement('div');
                modelCard.className = 'model-card bg-white rounded-xl shadow-sm p-4 border border-gray-200 hover:border-purple-300 transition cursor-pointer';
                modelCard.innerHTML = `
                    <div class="flex items-start space-x-3">
                        <div class="flex-shrink-0 w-12 h-12 rounded-lg ${getModelColorClass(model.type)} flex items-center justify-center">
                            ${getModelIcon(model.type)}
                        </div>
                        <div class="flex-1 min-w-0">
                            <h3 class="font-medium text-gray-900 truncate">${model.name}</h3>
                            <p class="text-sm text-gray-500 truncate">by ${model.author}</p>
                            <div class="flex flex-wrap gap-1 mt-2">
                                ${model.tags.slice(0, 3).map(tag => `<span class="text-xs px-2 py-1 ${getTagColorClass(tag)} rounded-full">${tag}</span>`).join('')}
                                ${model.tags.length > 3 ? `<span class="text-xs px-2 py-1 bg-gray-100 rounded-full">+${model.tags.length - 3}</span>` : ''}
                            </div>
                        </div>
                    </div>
                `;
                modelCard.addEventListener('click', () => selectModel(model));
                modelsContainer.appendChild(modelCard);
            }
            
            modelsContainer.classList.remove('hidden');
        }

        function renderPagination() {
            pageNumbers.innerHTML = '';
            
            // Always show first page
            addPageNumber(1);
            
            // Show ellipsis if needed
            if (currentPage > 3) {
                const ellipsis = document.createElement('span');
                ellipsis.className = 'px-4 py-2';
                ellipsis.textContent = '...';
                pageNumbers.appendChild(ellipsis);
            }
            
            // Show current page and neighbors
            for (let i = Math.max(2, currentPage - 1); i <= Math.min(totalPages - 1, currentPage + 1); i++) {
                addPageNumber(i);
            }
            
            // Show ellipsis if needed
            if (currentPage < totalPages - 2) {
                const ellipsis = document.createElement('span');
                ellipsis.className = 'px-4 py-2';
                ellipsis.textContent = '...';
                pageNumbers.appendChild(ellipsis);
            }
            
            // Always show last page if different from first
            if (totalPages > 1) {
                addPageNumber(totalPages);
            }
            
            prevPageBtn.disabled = currentPage === 1;
            nextPageBtn.disabled = currentPage === totalPages;
            
            pagination.classList.remove('hidden');
        }

        function addPageNumber(page) {
            const pageBtn = document.createElement('button');
            pageBtn.className = `px-4 py-2 rounded-lg ${currentPage === page ? 'bg-purple-600 text-white' : 'bg-gray-100 hover:bg-gray-200'}`;
            pageBtn.textContent = page;
            pageBtn.addEventListener('click', () => {
                currentPage = page;
                renderModels();
                renderPagination();
            });
            pageNumbers.appendChild(pageBtn);
        }

        function changePage(delta) {
            const newPage = currentPage + delta;
            if (newPage > 0 && newPage <= totalPages) {
                currentPage = newPage;
                renderModels();
                renderPagination();
            }
        }

        function selectModel(model) {
            selectedModel = model;
            interactionSection.classList.remove('hidden');
            
            // Update model info
            modelName.textContent = model.name;
            modelAuthor.textContent = `by ${model.author}`;
            modelType.textContent = model.type.charAt(0).toUpperCase() + model.type.slice(1);
            modelDownloads.textContent = model.downloads.toLocaleString();
            modelUpdated.textContent = new Date(model.lastUpdated).toLocaleDateString();
            
            // Update model tasks
            modelTasks.innerHTML = '';
            model.tasks.forEach(task => {
                const taskEl = document.createElement('span');
                taskEl.className = 'text-xs px-2 py-1 bg-blue-100 text-blue-800 rounded-full';
                taskEl.textContent = task;
                modelTasks.appendChild(taskEl);
            });
            
            // Update model avatar
            modelAvatar.className = `w-16 h-16 rounded-lg ${getModelColorClass(model.type)} flex items-center justify-center mr-4`;
            modelAvatar.innerHTML = getModelIcon(model.type, 'text-2xl');
            
            // Update status
            updateModelStatus('connected');
            
            // Show appropriate input section
            if (model.type === 'image') {
                textInputSection.classList.add('hidden');
                imageInputSection.classList.remove('hidden');
                clearChat();
            } else {
                textInputSection.classList.remove('hidden');
                imageInputSection.classList.add('hidden');
                addSystemMessage(`You are now interacting with the ${model.name} model. What would you like to do?`);
            }
            
            // Scroll to interaction section
            interactionSection.scrollIntoView({ behavior: 'smooth' });
        }

        function clearSelectedModel() {
            selectedModel = null;
            interactionSection.classList.add('hidden');
            updateModelStatus('disconnected');
            clearChat();
        }

        function updateModelStatus(status) {
            const statusDot = modelStatus.querySelector('span');
            const statusText = modelStatus.querySelector('span:last-child');
            
            if (status === 'connected') {
                statusDot.className = 'w-2 h-2 rounded-full bg-green-500 mr-2';
                statusText.textContent = 'Connected';
            } else if (status === 'connecting') {
                statusDot.className = 'w-2 h-2 rounded-full bg-yellow-500 mr-2';
                statusText.textContent = 'Connecting...';
            } else {
                statusDot.className = 'w-2 h-2 rounded-full bg-gray-400 mr-2';
                statusText.textContent = 'Disconnected';
            }
        }

        function addSystemMessage(message) {
            const messageDiv = document.createElement('div');
            messageDiv.className = 'flex justify-center';
            
            const contentDiv = document.createElement('div');
            contentDiv.className = 'bg-gray-200 text-gray-700 px-4 py-2 rounded-lg text-sm';
            contentDiv.textContent = message;
            
            messageDiv.appendChild(contentDiv);
            chatContainer.appendChild(messageDiv);
            chatContainer.scrollTop = chatContainer.scrollHeight;
        }

        function addUserMessage(message) {
            const messageDiv = document.createElement('div');
            messageDiv.className = 'flex justify-end';
            
            const contentDiv = document.createElement('div');
            contentDiv.className = 'bg-blue-600 text-white px-4 py-2 chat-message-user max-w-xs md:max-w-md';
            contentDiv.textContent = message;
            
            messageDiv.appendChild(contentDiv);
            chatContainer.appendChild(messageDiv);
            chatContainer.scrollTop = chatContainer.scrollHeight;
            
            // Add to chat history
            chatHistory.push({ role: 'user', content: message });
        }

        function addAIMessage(message, isImage = false) {
            const messageDiv = document.createElement('div');
            messageDiv.className = 'flex justify-start';
            
            const contentDiv = document.createElement('div');
            contentDiv.className = 'bg-gray-100 text-gray-800 px-4 py-2 chat-message-ai max-w-xs md:max-w-md';
            
            if (isImage) {
                // For images, we'd typically get a URL from the API
                // Here we'll just show a placeholder
                const img = document.createElement('img');
                img.src = 'https://via.placeholder.com/512/7c3aed/ffffff?text=Generated+Image';
                img.alt = 'Generated image';
                img.className = 'w-full h-auto rounded-lg';
                contentDiv.appendChild(img);
                contentDiv.appendChild(document.createElement('br'));
                
                const caption = document.createElement('p');
                caption.className = 'text-sm mt-2';
                caption.textContent = 'Generated image based on your prompt';
                contentDiv.appendChild(caption);
            } else {
                contentDiv.textContent = message;
            }
            
            messageDiv.appendChild(contentDiv);
            chatContainer.appendChild(messageDiv);
            chatContainer.scrollTop = chatContainer.scrollHeight;
            
            // Add to chat history
            chatHistory.push({ role: 'assistant', content: message });
        }

        function addLoadingMessage() {
            const messageDiv = document.createElement('div');
            messageDiv.className = 'flex justify-start';
            
            const contentDiv = document.createElement('div');
            contentDiv.className = 'bg-gray-100 text-gray-800 px-4 py-2 chat-message-ai max-w-xs md:max-w-md';
            contentDiv.innerHTML = '<div class="loading-dots">Generating response</div>';
            
            messageDiv.appendChild(contentDiv);
            chatContainer.appendChild(messageDiv);
            chatContainer.scrollTop = chatContainer.scrollHeight;
            
            return contentDiv;
        }

        function clearChat() {
            chatContainer.innerHTML = `
                <div class="text-center py-10 text-gray-500">
                    <i class="fas fa-comment-dots text-3xl mb-2"></i>
                    <p>Select a model and start chatting or generating content</p>
                </div>
            `;
            chatHistory = [];
        }

        function sendMessage() {
            const message = userInput.value.trim();
            if (!message) return;
            
            if (!selectedModel) {
                showToast('Please select a model first', 'error');
                return;
            }
            
            addUserMessage(message);
            userInput.value = '';
            
            // Show loading message
            const loadingElement = addLoadingMessage();
            
            // Simulate API call
            setTimeout(() => {
                // Replace loading message with response
                loadingElement.classList.remove('loading-dots');
                loadingElement.textContent = '';
                
                // Generate a mock response based on model type
                let response;
                if (selectedModel.type === 'text') {
                    response = `This is a mock response from the ${selectedModel.name} model. In a real implementation, this would be the actual response from the Hugging Face API.`;
                } else if (selectedModel.type === 'image') {
                    response = `I'm an image generation model. Please use the image generation panel below to create images.`;
                } else {
                    response = `I'm a ${selectedModel.type} model. Here's a sample response based on your input.`;
                }
                
                loadingElement.textContent = response;
                
                // Add to chat history
                chatHistory.push({ role: 'assistant', content: response });
            }, 1500);
        }

        function generateImage() {
            const prompt = imagePrompt.value.trim();
            if (!prompt) {
                showToast('Please enter an image prompt', 'error');
                return;
            }
            
            if (!selectedModel || selectedModel.type !== 'image') {
                showToast('Please select an image generation model first', 'error');
                return;
            }
            
            // Clear previous chat and add user prompt
            clearChat();
            addUserMessage(`Generate image: ${prompt}`);
            
            // Show loading message
            const loadingElement = addLoadingMessage();
            
            // Simulate API call to generate image
            setTimeout(() => {
                // Replace loading message with image
                loadingElement.classList.remove('loading-dots');
                loadingElement.textContent = '';
                
                // Add mock generated image
                addAIMessage('', true);
                
                showToast('Image generated successfully!', 'success');
            }, 2500);
        }

        function showExamplePrompts() {
            examplePromptsModal.classList.remove('hidden');
        }

        function useExamplePrompt(element) {
            const prompt = element.textContent;
            
            if (selectedModel?.type === 'image') {
                imagePrompt.value = prompt;
                examplePromptsModal.classList.add('hidden');
            } else {
                userInput.value = prompt;
                examplePromptsModal.classList.add('hidden');
                userInput.focus();
            }
        }

        function showToast(message, type = 'info') {
            const toast = document.createElement('div');
            toast.className = `fixed bottom-4 right-4 px-6 py-3 rounded-lg shadow-lg text-white ${
                type === 'success' ? 'bg-green-500' : 
                type === 'error' ? 'bg-red-500' : 
                'bg-blue-500'
            } flex items-center space-x-2 z-50`;
            
            toast.innerHTML = `
                <i class="fas ${
                    type === 'success' ? 'fa-check-circle' : 
                    type === 'error' ? 'fa-exclamation-circle' : 
                    'fa-info-circle'
                }"></i>
                <span>${message}</span>
            `;
            
            document.body.appendChild(toast);
            
            setTimeout(() => {
                toast.classList.add('opacity-0', 'transition-opacity', 'duration-300');
                setTimeout(() => toast.remove(), 300);
            }, 3000);
        }

        function getModelColorClass(type) {
            switch(type) {
                case 'text': return 'bg-blue-100 text-blue-800';
                case 'image': return 'bg-purple-100 text-purple-800';
                case 'audio': return 'bg-green-100 text-green-800';
                case 'multimodal': return 'bg-indigo-100 text-indigo-800';
                default: return 'bg-gray-100 text-gray-800';
            }
        }

        function getModelIcon(type, size = 'text-xl') {
            switch(type) {
                case 'text': return `<i class="fas fa-font ${size}"></i>`;
                case 'image': return `<i class="fas fa-image ${size}"></i>`;
                case 'audio': return `<i class="fas fa-music ${size}"></i>`;
                case 'multimodal': return `<i class="fas fa-shapes ${size}"></i>`;
                default: return `<i class="fas fa-cube ${size}"></i>`;
            }
        }

        function getTagColorClass(tag) {
            // Simple hash function to get consistent colors for tags
            let hash = 0;
            for (let i = 0; i < tag.length; i++) {
                hash = tag.charCodeAt(i) + ((hash << 5) - hash);
            }
            
            const colors = [
                'bg-blue-100 text-blue-800',
                'bg-green-100 text-green-800',
                'bg-yellow-100 text-yellow-800',
                'bg-red-100 text-red-800',
                'bg-purple-100 text-purple-800',
                'bg-pink-100 text-pink-800',
                'bg-indigo-100 text-indigo-800'
            ];
            
            return colors[Math.abs(hash) % colors.length];
        }

        // Mock data for demonstration
        function getMockModels() {
            return [
                {
                    id: 'gpt2',
                    name: 'gpt2',
                    author: 'openai',
                    type: 'text',
                    tags: ['text-generation', 'gpt', 'transformers'],
                    downloads: 15000000,
                    lastUpdated: '2023-05-15',
                    tasks: ['text-generation', 'text-completion']
                },
                {
                    id: 'stable-diffusion-v1-5',
                    name: 'stable-diffusion-v1-5',
                    author: 'CompVis',
                    type: 'image',
                    tags: ['text-to-image', 'diffusion', 'stable-diffusion'],
                    downloads: 8500000,
                    lastUpdated: '2023-04-20',
                    tasks: ['text-to-image']
                },
                {
                    id: 'bert-base-uncased',
                    name: 'bert-base-uncased',
                    author: 'google',
                    type: 'text',
                    tags: ['fill-mask', 'bert', 'transformers'],
                    downloads: 12000000,
                    lastUpdated: '2023-03-10',
                    tasks: ['fill-mask', 'feature-extraction']
                },
                {
                    id: 'whisper-large',
                    name: 'whisper-large',
                    author: 'openai',
                    type: 'audio',
                    tags: ['automatic-speech-recognition', 'whisper'],
                    downloads: 5000000,
                    lastUpdated: '2023-06-01',
                    tasks: ['automatic-speech-recognition']
                },
                {
                    id: 'blip-image-captioning-base',
                    name: 'blip-image-captioning-base',
                    author: 'Salesforce',
                    type: 'multimodal',
                    tags: ['image-to-text', 'captioning', 'blip'],
                    downloads: 3200000,
                    lastUpdated: '2023-02-18',
                    tasks: ['image-to-text']
                },
                {
                    id: 't5-base',
                    name: 't5-base',
                    author: 'google',
                    type: 'text',
                    tags: ['text2text-generation', 't5', 'transformers'],
                    downloads: 9000000,
                    lastUpdated: '2023-01-30',
                    tasks: ['summarization', 'translation', 'text-generation']
                },
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