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citadely
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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>RAG System Manager</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>
        .file-upload {
            border: 2px dashed #cbd5e0;
            transition: all 0.3s ease;
        }
        .file-upload:hover {
            border-color: #4f46e5;
            background-color: #f8fafc;
        }
        .file-upload.dragover {
            border-color: #4f46e5;
            background-color: #e0e7ff;
        }
        .chat-message.user {
            background-color: #e0e7ff;
            border-radius: 1rem 1rem 0 1rem;
        }
        .chat-message.assistant {
            background-color: #f1f5f9;
            border-radius: 1rem 1rem 1rem 0;
        }
        .progress-bar {
            transition: width 0.3s ease;
        }
        #knowledge-graph {
            height: 400px;
            background-color: #f8fafc;
            border-radius: 0.5rem;
        }
        .document-card:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
        }
        .animate-pulse {
            animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
        }
        @keyframes pulse {
            0%, 100% {
                opacity: 1;
            }
            50% {
                opacity: 0.5;
            }
        }
    </style>
</head>
<body class="bg-gray-50 min-h-screen">
    <div class="container mx-auto px-4 py-8">
        <!-- Header -->
        <header class="mb-8">
            <div class="flex flex-col md:flex-row justify-between items-start md:items-center gap-4">
                <div>
                    <h1 class="text-3xl font-bold text-indigo-700">RAG System Manager</h1>
                    <p class="text-gray-600">Upload documents to enhance your LLM's knowledge</p>
                </div>
                <div class="flex items-center gap-4">
                    <div class="relative">
                        <select id="model-selector" class="appearance-none bg-white border border-gray-300 rounded-md py-2 pl-3 pr-8 text-gray-700 focus:outline-none focus:ring-2 focus:ring-indigo-500">
                            <option value="gpt-4">GPT-4</option>
                            <option value="gpt-3.5" selected>GPT-3.5</option>
                            <option value="claude-2">Claude 2</option>
                            <option value="llama-2">Llama 2</option>
                        </select>
                        <div class="pointer-events-none absolute inset-y-0 right-0 flex items-center px-2 text-gray-700">
                            <i class="fas fa-chevron-down"></i>
                        </div>
                    </div>
                    <button id="clear-chat" class="bg-gray-200 hover:bg-gray-300 text-gray-800 py-2 px-4 rounded-md transition flex items-center gap-2">
                        <i class="fas fa-trash-alt"></i> Clear
                    </button>
                </div>
            </div>
        </header>

        <div class="grid grid-cols-1 lg:grid-cols-3 gap-8">
            <!-- Left Panel - Document Management -->
            <div class="lg:col-span-1 space-y-6">
                <!-- Upload Section -->
                <div class="bg-white rounded-xl shadow-md p-6">
                    <h2 class="text-xl font-semibold text-gray-800 mb-4">Upload Documents</h2>
                    <div id="drop-area" class="file-upload rounded-lg p-6 text-center cursor-pointer">
                        <input type="file" id="file-input" class="hidden" multiple accept=".pdf,.txt,.docx,.pptx,.xlsx,.csv">
                        <div class="flex flex-col items-center justify-center py-8">
                            <i class="fas fa-cloud-upload-alt text-4xl text-indigo-500 mb-3"></i>
                            <p class="text-gray-600 mb-2">Drag & drop files here or click to browse</p>
                            <p class="text-sm text-gray-500">Supported formats: PDF, TXT, DOCX, PPTX, XLSX, CSV</p>
                            <button id="browse-btn" class="mt-4 bg-indigo-600 hover:bg-indigo-700 text-white py-2 px-4 rounded-md transition">
                                Select Files
                            </button>
                        </div>
                    </div>
                    <div id="upload-progress" class="mt-4 hidden">
                        <div class="flex justify-between text-sm text-gray-600 mb-1">
                            <span>Uploading...</span>
                            <span id="progress-percent">0%</span>
                        </div>
                        <div class="w-full bg-gray-200 rounded-full h-2.5">
                            <div id="progress-bar" class="progress-bar bg-indigo-600 h-2.5 rounded-full" style="width: 0%"></div>
                        </div>
                    </div>
                </div>

                <!-- Document List -->
                <div class="bg-white rounded-xl shadow-md p-6">
                    <div class="flex justify-between items-center mb-4">
                        <h2 class="text-xl font-semibold text-gray-800">Knowledge Base</h2>
                        <div class="text-sm text-gray-500" id="document-count">0 documents</div>
                    </div>
                    <div id="document-list" class="space-y-3 max-h-96 overflow-y-auto">
                        <div class="text-center py-8 text-gray-500" id="empty-state">
                            <i class="fas fa-folder-open text-3xl mb-2"></i>
                            <p>No documents uploaded yet</p>
                        </div>
                    </div>
                </div>

                <!-- Knowledge Graph Visualization -->
                <div class="bg-white rounded-xl shadow-md p-6">
                    <h2 class="text-xl font-semibold text-gray-800 mb-4">Knowledge Graph</h2>
                    <div id="knowledge-graph" class="flex items-center justify-center">
                        <div class="text-center text-gray-500">
                            <i class="fas fa-project-diagram text-3xl mb-2"></i>
                            <p>Graph will appear after document processing</p>
                        </div>
                    </div>
                </div>
            </div>

            <!-- Right Panel - Chat Interface -->
            <div class="lg:col-span-2">
                <div class="bg-white rounded-xl shadow-md h-full flex flex-col">
                    <!-- Chat Header -->
                    <div class="border-b border-gray-200 p-4">
                        <div class="flex items-center justify-between">
                            <h2 class="text-xl font-semibold text-gray-800">RAG Chat</h2>
                            <div class="flex items-center gap-2">
                                <span id="rag-status" class="inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-green-100 text-green-800">
                                    <span class="w-2 h-2 rounded-full bg-green-500 mr-1"></span>
                                    RAG Enabled
                                </span>
                                <button id="toggle-rag" class="text-indigo-600 hover:text-indigo-800">
                                    <i class="fas fa-toggle-on"></i>
                                </button>
                            </div>
                        </div>
                        <p class="text-sm text-gray-500 mt-1">Ask questions based on your uploaded documents</p>
                    </div>

                    <!-- Chat Messages -->
                    <div id="chat-container" class="flex-1 p-4 overflow-y-auto space-y-4">
                        <div class="chat-message assistant p-4 max-w-[80%]">
                            <div class="flex items-start gap-3">
                                <div class="flex-shrink-0 bg-indigo-100 text-indigo-800 rounded-full w-8 h-8 flex items-center justify-center">
                                    <i class="fas fa-robot"></i>
                                </div>
                                <div>
                                    <p class="font-medium text-gray-800">RAG Assistant</p>
                                    <p class="text-gray-700 mt-1">Hello! I'm your RAG assistant. Upload documents to enhance my knowledge, then ask me anything about their content.</p>
                                </div>
                            </div>
                        </div>
                    </div>

                    <!-- Chat Input -->
                    <div class="border-t border-gray-200 p-4">
                        <form id="chat-form" class="flex gap-2">
                            <div class="relative flex-1">
                                <textarea id="message-input" rows="1" class="w-full border border-gray-300 rounded-md py-2 pl-4 pr-10 focus:outline-none focus:ring-2 focus:ring-indigo-500 focus:border-indigo-500 resize-none" placeholder="Type your question..."></textarea>
                                <button type="button" id="attach-file" class="absolute right-2 bottom-2 text-gray-500 hover:text-indigo-600">
                                    <i class="fas fa-paperclip"></i>
                                </button>
                            </div>
                            <button type="submit" class="bg-indigo-600 hover:bg-indigo-700 text-white py-2 px-4 rounded-md transition flex items-center justify-center w-12 h-12">
                                <i class="fas fa-paper-plane"></i>
                            </button>
                        </form>
                        <div class="flex justify-between mt-2">
                            <div class="text-xs text-gray-500">
                                <span id="char-count">0</span>/1000
                            </div>
                            <div class="text-xs text-gray-500">
                                <i class="fas fa-info-circle mr-1"></i> Press Shift+Enter for new line
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>

    <!-- Document Preview Modal -->
    <div id="preview-modal" 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-4xl max-h-[90vh] flex flex-col">
            <div class="flex justify-between items-center border-b border-gray-200 p-4">
                <h3 class="text-lg font-semibold text-gray-800" id="preview-title">Document Preview</h3>
                <button id="close-preview" class="text-gray-500 hover:text-gray-700">
                    <i class="fas fa-times"></i>
                </button>
            </div>
            <div id="preview-content" class="flex-1 overflow-auto p-4">
                <!-- Content will be loaded here -->
            </div>
            <div class="border-t border-gray-200 p-4 flex justify-end">
                <button id="delete-document" class="bg-red-100 hover:bg-red-200 text-red-700 py-2 px-4 rounded-md transition flex items-center gap-2">
                    <i class="fas fa-trash-alt"></i> Delete Document
                </button>
            </div>
        </div>
    </div>

    <script>
        document.addEventListener('DOMContentLoaded', function() {
            // DOM Elements
            const dropArea = document.getElementById('drop-area');
            const fileInput = document.getElementById('file-input');
            const browseBtn = document.getElementById('browse-btn');
            const uploadProgress = document.getElementById('upload-progress');
            const progressBar = document.getElementById('progress-bar');
            const progressPercent = document.getElementById('progress-percent');
            const documentList = document.getElementById('document-list');
            const emptyState = document.getElementById('empty-state');
            const documentCount = document.getElementById('document-count');
            const chatForm = document.getElementById('chat-form');
            const messageInput = document.getElementById('message-input');
            const chatContainer = document.getElementById('chat-container');
            const charCount = document.getElementById('char-count');
            const attachFile = document.getElementById('attach-file');
            const clearChat = document.getElementById('clear-chat');
            const toggleRag = document.getElementById('toggle-rag');
            const ragStatus = document.getElementById('rag-status');
            const previewModal = document.getElementById('preview-modal');
            const closePreview = document.getElementById('close-preview');
            const previewContent = document.getElementById('preview-content');
            const previewTitle = document.getElementById('preview-title');
            const deleteDocument = document.getElementById('delete-document');
            const modelSelector = document.getElementById('model-selector');

            // State
            let documents = [];
            let ragEnabled = true;
            let currentPreviewDocId = null;

            // Event Listeners
            browseBtn.addEventListener('click', () => fileInput.click());
            fileInput.addEventListener('change', handleFiles);
            
            // Drag and drop events
            ['dragenter', 'dragover', 'dragleave', 'drop'].forEach(eventName => {
                dropArea.addEventListener(eventName, preventDefaults, false);
            });

            function preventDefaults(e) {
                e.preventDefault();
                e.stopPropagation();
            }

            ['dragenter', 'dragover'].forEach(eventName => {
                dropArea.addEventListener(eventName, highlight, false);
            });

            ['dragleave', 'drop'].forEach(eventName => {
                dropArea.addEventListener(eventName, unhighlight, false);
            });

            function highlight() {
                dropArea.classList.add('dragover');
            }

            function unhighlight() {
                dropArea.classList.remove('dragover');
            }

            dropArea.addEventListener('drop', handleDrop, false);

            function handleDrop(e) {
                const dt = e.dataTransfer;
                const files = dt.files;
                handleFiles({ target: { files } });
            }

            // Handle file uploads
            function handleFiles(e) {
                const files = Array.from(e.target.files);
                if (files.length === 0) return;

                // Simulate upload process
                uploadProgress.classList.remove('hidden');
                let loaded = 0;
                const total = files.length * 100; // Each file has 100 "units" to load

                files.forEach((file, index) => {
                    // Simulate processing each file
                    setTimeout(() => {
                        const reader = new FileReader();
                        reader.onload = function(e) {
                            const content = e.target.result;
                            
                            // Create document object
                            const doc = {
                                id: Date.now() + index,
                                name: file.name,
                                type: file.type,
                                size: formatFileSize(file.size),
                                uploadDate: new Date().toLocaleDateString(),
                                content: content.substring(0, 500) + '...', // Store preview
                                fullContent: content, // Store full content (simulated)
                                embeddings: generateRandomEmbeddings(), // Simulate embeddings
                                processed: true
                            };

                            documents.push(doc);
                            renderDocument(doc);
                            updateDocumentCount();
                            
                            // Update progress
                            loaded += 100;
                            const percent = Math.min(Math.round((loaded / total) * 100), 100);
                            progressBar.style.width = `${percent}%`;
                            progressPercent.textContent = `${percent}%`;
                            
                            if (loaded >= total) {
                                setTimeout(() => {
                                    uploadProgress.classList.add('hidden');
                                    progressBar.style.width = '0%';
                                    progressPercent.textContent = '0%';
                                }, 500);
                            }
                        };
                        
                        // Simulate different processing for different file types
                        if (file.type === 'application/pdf') {
                            setTimeout(() => reader.readAsDataURL(file), 1000);
                        } else if (file.type.includes('text') || file.name.endsWith('.txt')) {
                            setTimeout(() => reader.readAsText(file), 800);
                        } else {
                            setTimeout(() => reader.readAsDataURL(file), 1200);
                        }
                    }, index * 300);
                });
            }

            // Format file size
            function formatFileSize(bytes) {
                if (bytes === 0) return '0 Bytes';
                const k = 1024;
                const sizes = ['Bytes', 'KB', 'MB', 'GB'];
                const i = Math.floor(Math.log(bytes) / Math.log(k));
                return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i];
            }

            // Generate random embeddings (simulated)
            function generateRandomEmbeddings() {
                const embeddings = [];
                for (let i = 0; i < 5; i++) {
                    embeddings.push({
                        text: `Key concept ${i+1}`,
                        score: (Math.random() * 0.5 + 0.5).toFixed(2)
                    });
                }
                return embeddings;
            }

            // Render document to the list
            function renderDocument(doc) {
                emptyState.classList.add('hidden');
                
                const docElement = document.createElement('div');
                docElement.className = 'document-card bg-white border border-gray-200 rounded-lg p-4 hover:shadow-md transition cursor-pointer';
                docElement.innerHTML = `
                    <div class="flex justify-between items-start">
                        <div class="flex-1 min-w-0">
                            <div class="flex items-center gap-2 mb-1">
                                <i class="${getFileIcon(doc.name)} text-indigo-500"></i>
                                <p class="text-sm font-medium text-gray-900 truncate">${doc.name}</p>
                            </div>
                            <div class="flex items-center gap-3 text-xs text-gray-500">
                                <span>${doc.size}</span>
                                <span>•</span>
                                <span>${doc.uploadDate}</span>
                                <span>•</span>
                                <span class="flex items-center ${doc.processed ? 'text-green-600' : 'text-yellow-600'}">
                                    <i class="fas ${doc.processed ? 'fa-check-circle' : 'fa-spinner fa-spin'} mr-1"></i>
                                    ${doc.processed ? 'Processed' : 'Processing'}
                                </span>
                            </div>
                        </div>
                        <button class="text-gray-400 hover:text-indigo-600 preview-btn" data-id="${doc.id}">
                            <i class="fas fa-eye"></i>
                        </button>
                    </div>
                    ${doc.processed ? `
                    <div class="mt-3">
                        <div class="text-xs text-gray-500 mb-1">Key concepts:</div>
                        <div class="flex flex-wrap gap-1">
                            ${doc.embeddings.slice(0, 3).map(e => `
                                <span class="bg-indigo-100 text-indigo-800 text-xs px-2 py-0.5 rounded-full">
                                    ${e.text}
                                </span>
                            `).join('')}
                            ${doc.embeddings.length > 3 ? `<span class="bg-gray-100 text-gray-800 text-xs px-2 py-0.5 rounded-full">+${doc.embeddings.length - 3}</span>` : ''}
                        </div>
                    </div>
                    ` : ''}
                `;
                
                documentList.prepend(docElement);
                
                // Add event listener to preview button
                docElement.querySelector('.preview-btn').addEventListener('click', (e) => {
                    e.stopPropagation();
                    showDocumentPreview(doc.id);
                });
                
                docElement.addEventListener('click', () => {
                    showDocumentPreview(doc.id);
                });
            }

            // Get file icon based on extension
            function getFileIcon(filename) {
                const extension = filename.split('.').pop().toLowerCase();
                switch(extension) {
                    case 'pdf': return 'fas fa-file-pdf';
                    case 'txt': return 'fas fa-file-alt';
                    case 'docx': return 'fas fa-file-word';
                    case 'xlsx': return 'fas fa-file-excel';
                    case 'pptx': return 'fas fa-file-powerpoint';
                    case 'csv': return 'fas fa-file-csv';
                    default: return 'fas fa-file';
                }
            }

            // Update document count
            function updateDocumentCount() {
                const count = documents.length;
                documentCount.textContent = `${count} document${count !== 1 ? 's' : ''}`;
                
                // Update knowledge graph placeholder
                const graphPlaceholder = document.querySelector('#knowledge-graph > div');
                if (count > 0) {
                    graphPlaceholder.innerHTML = `
                        <div class="text-center">
                            <div class="animate-pulse mb-4">
                                <div class="mx-auto bg-indigo-200 rounded-full w-24 h-24 flex items-center justify-center">
                                    <i class="fas fa-project-diagram text-3xl text-indigo-600"></i>
                                </div>
                            </div>
                            <p>Building knowledge graph...</p>
                            <p class="text-sm text-gray-500 mt-1">${count} document${count !== 1 ? 's' : ''} processed</p>
                        </div>
                    `;
                    
                    // Simulate graph generation
                    setTimeout(() => {
                        graphPlaceholder.innerHTML = `
                            <div class="w-full h-full flex items-center justify-center">
                                <div class="text-center">
                                    <img src="https://via.placeholder.com/400x300/4f46e5/ffffff?text=Knowledge+Graph" alt="Knowledge Graph" class="rounded-lg mb-2">
                                    <p class="text-sm text-gray-600">Visual representation of document relationships</p>
                                </div>
                            </div>
                        `;
                    }, 2000);
                }
            }

            // Show document preview
            function showDocumentPreview(docId) {
                const doc = documents.find(d => d.id === docId);
                if (!doc) return;
                
                currentPreviewDocId = docId;
                previewTitle.textContent = doc.name;
                
                // Display different content based on file type
                if (doc.type === 'application/pdf') {
                    previewContent.innerHTML = `
                        <div class="text-center py-8">
                            <i class="fas fa-file-pdf text-5xl text-red-500 mb-4"></i>
                            <p class="text-gray-700">PDF preview would be displayed here</p>
                            <p class="text-sm text-gray-500 mt-2">Content extract:</p>
                            <div class="mt-2 p-3 bg-gray-50 rounded text-left text-sm text-gray-700">
                                ${doc.content}
                            </div>
                        </div>
                    `;
                } else if (doc.type.includes('text') || doc.name.endsWith('.txt')) {
                    previewContent.innerHTML = `
                        <div class="bg-gray-50 p-4 rounded-lg">
                            <pre class="text-sm text-gray-800 whitespace-pre-wrap">${doc.fullContent.substring(0, 2000)}${doc.fullContent.length > 2000 ? '...' : ''}</pre>
                        </div>
                        ${doc.fullContent.length > 2000 ? `<p class="text-xs text-gray-500 mt-2">Document truncated - showing first 2000 characters</p>` : ''}
                    `;
                } else {
                    previewContent.innerHTML = `
                        <div class="text-center py-8">
                            <i class="${getFileIcon(doc.name)} text-5xl text-indigo-500 mb-4"></i>
                            <p class="text-gray-700">Preview for ${doc.name}</p>
                            <p class="text-sm text-gray-500 mt-2">Content extract:</p>
                            <div class="mt-2 p-3 bg-gray-50 rounded text-left text-sm text-gray-700">
                                ${doc.content}
                            </div>
                        </div>
                    `;
                }
                
                previewModal.classList.remove('hidden');
            }

            // Close preview modal
            closePreview.addEventListener('click', () => {
                previewModal.classList.add('hidden');
                currentPreviewDocId = null;
            });

            // Delete document
            deleteDocument.addEventListener('click', () => {
                if (!currentPreviewDocId) return;
                
                documents = documents.filter(d => d.id !== currentPreviewDocId);
                const docElement = document.querySelector(`.preview-btn[data-id="${currentPreviewDocId}"]`)?.closest('.document-card');
                if (docElement) docElement.remove();
                
                if (documents.length === 0) {
                    emptyState.classList.remove('hidden');
                }
                
                updateDocumentCount();
                previewModal.classList.add('hidden');
                currentPreviewDocId = null;
                
                // Show notification
                showNotification('Document deleted successfully', 'success');
            });

            // Chat functionality
            chatForm.addEventListener('submit', function(e) {
                e.preventDefault();
                const message = messageInput.value.trim();
                if (!message) return;
                
                // Add user message to chat
                addMessageToChat(message, 'user');
                messageInput.value = '';
                updateCharCount();
                
                // Show typing indicator
                const typingId = showTypingIndicator();
                
                // Generate response (simulated)
                setTimeout(() => {
                    removeTypingIndicator(typingId);
                    
                    // Check if we have documents for RAG
                    const hasDocuments = documents.length > 0;
                    const useRag = ragEnabled && hasDocuments;
                    
                    // Generate response based on context
                    let response;
                    if (useRag) {
                        // Simulate RAG response with document context
                        const relevantDocs = documents.slice(0, Math.min(2, documents.length));
                        const docContext = relevantDocs.map(doc => 
                            `Document: ${doc.name}\nExtract: ${doc.content.substring(0, 200)}...`
                        ).join('\n\n');
                        
                        response = {
                            text: `Based on the documents you've provided, I can answer your question about "${message}". Here's what I found:\n\n${generateSimulatedAnswer(message)}\n\nI've used information from ${relevantDocs.length} document${relevantDocs.length !== 1 ? 's' : ''} in my response.`,
                            sources: relevantDocs.map(doc => doc.name),
                            confidence: (Math.random() * 0.3 + 0.7).toFixed(2)
                        };
                    } else {
                        // Standard response without RAG
                        response = {
                            text: ragEnabled && !hasDocuments 
                                ? `I can't use my RAG capabilities because you haven't uploaded any documents yet. Please upload relevant documents to get more accurate answers about: "${message}".\n\nHere's my general knowledge response:\n${generateSimulatedAnswer(message)}`
                                : generateSimulatedAnswer(message),
                            sources: [],
                            confidence: (Math.random() * 0.2 + 0.5).toFixed(2)
                        };
                    }
                    
                    addMessageToChat(response.text, 'assistant', response.sources);
                }, 1500 + Math.random() * 2000);
            });

            // Add message to chat
            function addMessageToChat(text, role, sources = []) {
                const messageDiv = document.createElement('div');
                messageDiv.className = `chat-message ${role} p-4 max-w-[80%] ${role === 'user' ? 'ml-auto' : ''}`;
                
                messageDiv.innerHTML = `
                    <div class="flex items-start gap-3">
                        <div class="flex-shrink-0 ${role === 'user' ? 'bg-indigo-100 text-indigo-800' : 'bg-gray-200 text-gray-800'} rounded-full w-8 h-8 flex items-center justify-center">
                            <i class="fas ${role === 'user' ? 'fa-user' : 'fa-robot'}"></i>
                        </div>
                        <div class="flex-1 min-w-0">
                            <p class="font-medium text-gray-800">${role === 'user' ? 'You' : 'RAG Assistant'}</p>
                            <p class="text-gray-700 mt-1 whitespace-pre-wrap">${text}</p>
                            ${sources.length > 0 ? `
                                <div class="mt-3 pt-2 border-t border-gray-200">
                                    <p class="text-xs text-gray-500 mb-1">Sources used:</p>
                                    <div class="flex flex-wrap gap-1">
                                        ${sources.map(src => `
                                            <span class="bg-gray-100 text-gray-800 text-xs px-2 py-0.5 rounded-full flex items-center">
                                                <i class="fas fa-file-alt mr-1 text-gray-500"></i>
                                                ${src}
                                            </span>
                                        `).join('')}
                                    </div>
                                </div>
                            ` : ''}
                        </div>
                    </div>
                `;
                
                chatContainer.appendChild(messageDiv);
                messageDiv.scrollIntoView({ behavior: 'smooth' });
            }

            // Generate simulated answer
            function generateSimulatedAnswer(question) {
                const answers = [
                    `The answer to "${question}" depends on several factors that need to be considered. Based on available information, the most likely explanation is related to the contextual data provided in the documents.`,
                    `When examining "${question}", we find that the key aspects involve multiple interacting components. The documents suggest a correlation between these factors.`,
                    `Analysis of "${question}" reveals interesting patterns. The data indicates a strong relationship between the variables mentioned in your query.`,
                    `Regarding "${question}", the evidence points toward a comprehensive solution that addresses all aspects of the problem space.`,
                    `The question about "${question}" is quite insightful. My understanding is that this involves a complex system with many moving parts.`
                ];
                
                return answers[Math.floor(Math.random() * answers.length)];
            }

            // Show typing indicator
            function showTypingIndicator() {
                const id = 'typing-' + Date.now();
                const typingDiv = document.createElement('div');
                typingDiv.id = id;
                typingDiv.className = 'chat-message assistant p-4 max-w-[80%]';
                typingDiv.innerHTML = `
                    <div class="flex items-start gap-3">
                        <div class="flex-shrink-0 bg-gray-200 text-gray-800 rounded-full w-8 h-8 flex items-center justify-center">
                            <i class="fas fa-robot"></i>
                        </div>
                        <div>
                            <p class="font-medium text-gray-800">RAG Assistant</p>
                            <div class="flex space-x-1 mt-2">
                                <div class="w-2 h-2 bg-gray-400 rounded-full animate-bounce"></div>
                                <div class="w-2 h-2 bg-gray-400 rounded-full animate-bounce" style="animation-delay: 0.2s"></div>
                                <div class="w-2 h-2 bg-gray-400 rounded-full animate-bounce" style="animation-delay: 0.4s"></div>
                            </div>
                        </div>
                    </div>
                `;
                
                chatContainer.appendChild(typingDiv);
                typingDiv.scrollIntoView({ behavior: 'smooth' });
                return id;
            }

            // Remove typing indicator
            function removeTypingIndicator(id) {
                const element = document.getElementById(id);
                if (element) element.remove();
            }

            // Character count for message input
            messageInput.addEventListener('input', updateCharCount);
            
            function updateCharCount() {
                const count = messageInput.value.length;
                charCount.textContent = count;
                
                if (count > 1000) {
                    charCount.classList.add('text-red-600');
                    charCount.classList.remove('text-gray-500');
                } else {
                    charCount.classList.add('text-gray-500');
                    charCount.classList.remove('text-red-600');
                }
            }

            // Allow Shift+Enter for new line
            messageInput.addEventListener('keydown', function(e) {
                if (e.key === 'Enter' && !e.shiftKey) {
                    e.preventDefault();
                    chatForm.dispatchEvent(new Event('submit'));
                }
            });

            // Attach file to chat
            attachFile.addEventListener('click', () => {
                fileInput.click();
                fileInput.onchange = function() {
                    const files = Array.from(fileInput.files);
                    if (files.length === 0) return;
                    
                    files.forEach(file => {
                        addMessageToChat(`Attached file: ${file.name} (${formatFileSize(file.size)})`, 'user');
                    });
                };
            });

            // Clear chat
            clearChat.addEventListener('click', () => {
                chatContainer.innerHTML = `
                    <div class="chat-message assistant p-4 max-w-[80%]">
                        <div class="flex items-start gap-3">
                            <div class="flex-shrink-0 bg-indigo-100 text-indigo-800 rounded-full w-8 h-8 flex items-center justify-center">
                                <i class="fas fa-robot"></i>
                            </div>
                            <div>
                                <p class="font-medium text-gray-800">RAG Assistant</p>
                                <p class="text-gray-700 mt-1">Hello! I'm your RAG assistant. Upload documents to enhance my knowledge, then ask me anything about their content.</p>
                            </div>
                        </div>
                    </div>
                `;
            });

            // Toggle RAG
            toggleRag.addEventListener('click', () => {
                ragEnabled = !ragEnabled;
                
                if (ragEnabled) {
                    toggleRag.innerHTML = '<i class="fas fa-toggle-on"></i>';
                    ragStatus.className = 'inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-green-100 text-green-800';
                    ragStatus.innerHTML = '<span class="w-2 h-2 rounded-full bg-green-500 mr-1"></span> RAG Enabled';
                    showNotification('RAG mode enabled', 'success');
                } else {
                    toggleRag.innerHTML = '<i class="fas fa-toggle-off"></i>';
                    ragStatus.className = 'inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-gray-100 text-gray-800';
                    ragStatus.innerHTML = '<span class="w-2 h-2 rounded-full bg-gray-500 mr-1"></span> RAG Disabled';
                    showNotification('RAG mode disabled - using standard responses', 'info');
                }
            });

            // Show notification
            function showNotification(message, type = 'info') {
                const notification = document.createElement('div');
                notification.className = `fixed bottom-4 right-4 px-4 py-2 rounded-md shadow-md text-white ${
                    type === 'success' ? 'bg-green-500' : 
                    type === 'error' ? 'bg-red-500' : 
                    type === 'warning' ? 'bg-yellow-500' : 'bg-indigo-500'
                } flex items-center gap-2`;
                notification.innerHTML = `
                    <i class="fas ${
                        type === 'success' ? 'fa-check-circle' : 
                        type === 'error' ? 'fa-exclamation-circle' : 
                        type === 'warning' ? 'fa-exclamation-triangle' : 'fa-info-circle'
                    }"></i>
                    <span>${message}</span>
                `;
                
                document.body.appendChild(notification);
                
                setTimeout(() => {
                    notification.classList.add('opacity-0', 'transition-opacity', 'duration-300');
                    setTimeout(() => notification.remove(), 300);
                }, 3000);
            }

            // Initialize
            updateCharCount();
        });
    </script>
<p style="border-radius: 8px; text-align: center; font-size: 12px; color: #fff; margin-top: 16px;position: fixed; left: 8px; bottom: 8px; z-index: 10; background: rgba(0, 0, 0, 0.8); padding: 4px 8px;">Made with <img src="https://enzostvs-deepsite.hf.space/logo.svg" alt="DeepSite Logo" style="width: 16px; height: 16px; vertical-align: middle;display:inline-block;margin-right:3px;filter:brightness(0) invert(1);"><a href="https://enzostvs-deepsite.hf.space" style="color: #fff;text-decoration: underline;" target="_blank" >DeepSite</a> - 🧬 <a href="https://enzostvs-deepsite.hf.space?remix=Matty20/citadely" style="color: #fff;text-decoration: underline;" target="_blank" >Remix</a></p></body>
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