683 lines
19 KiB
JavaScript
683 lines
19 KiB
JavaScript
const BACKENDS = {
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plato: {
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prod: '/api/plato',
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dev: 'http://192.168.1.74:8080/v1',
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name: 'Plato (192.168.1.74)'
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},
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stoic: {
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prod: '/api/stoic',
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dev: 'http://192.168.1.159:1234/v1',
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name: 'Stoic (192.168.1.159)'
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},
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ollama: {
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prod: '/api/ollama',
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dev: 'http://192.168.1.159:8081/v1',
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name: 'Ollama (192.168.1.159:8081)'
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}
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}
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const IS_PRODUCTION = window.location.hostname === 'jarvis-lan.appmodel.nl'
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const API_KEY = 'not-needed'
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const MAX_CHAT_HISTORY = 50
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let currentBackendModel = null
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let availableBackendModels = []
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let currentStreamController = null
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let isStreaming = false
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let chatHistory = JSON.parse(localStorage.getItem('chatHistory')) || []
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// ✅ FIX: Generate unique IDs and validate message structure
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chatHistory = chatHistory.map((message, index) => ({
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role: message.role || 'user',
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content: message.content || '',
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markdown: message.markdown || false,
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messageId: message.messageId || `msg-${Date.now()}-${index}`
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})).filter(msg => msg.content && typeof msg.content === 'string')
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const welcomeMessage = `# Welcome to LM Studio Chat!
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I now support **full conversation history**, **real-time streaming responses** and **dark, readable text formatting**.
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## Features:
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1. **Full Chat History** - Complete conversation context is now sent to the AI
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2. **Smart History Management** - Automatically keeps the last ${MAX_CHAT_HISTORY} messages
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3. **Streaming Mode** (enabled by default) - Watch responses appear word-by-word
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4. **Markdown Rendering** - Proper formatting for code, lists, tables, and more
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5. **Readable Dark Text** - No more eye strain from light gray text
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## Try it out:
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- Ask follow-up questions that reference earlier messages
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- Have a multi-turn conversation with full context
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- Ask "what did I just ask?" to test history retention
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- Watch the streaming response in real-time!
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> *Tip: You can toggle streaming and markdown using the checkboxes below.*`
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// ✅ NEW: Robust parser for backend:model format
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function splitBackendModel(value) {
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if (!value || value === ':') {
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return { backendKey: '', model: '' };
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}
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const colonIndex = value.indexOf(':');
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if (colonIndex === -1) {
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return { backendKey: value, model: '' };
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}
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return {
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backendKey: value.substring(0, colonIndex),
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model: value.substring(colonIndex + 1)
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};
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}
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function getApiUrl() {
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const { backendKey, model } = splitBackendModel(currentBackendModel);
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const effectiveBackendKey = backendKey || 'plato';
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const backend = BACKENDS[effectiveBackendKey];
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if (!backend) {
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throw new Error(`Invalid backend: '${effectiveBackendKey}'`);
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}
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return IS_PRODUCTION ? backend.prod : backend.dev;
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}
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function updateBackendModelDisplay() {
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const { backendKey, model } = splitBackendModel(currentBackendModel);
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const backend = BACKENDS[backendKey];
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if (!backend) return;
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const displayText = IS_PRODUCTION
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? `${backend.prod} - ${backend.name}`
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: backend.dev;
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const displayElement = document.getElementById('backendDisplay');
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if (displayElement) {
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displayElement.textContent = `${displayText} - Model: ${model || 'None'}`;
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}
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}
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async function fetchBackendModels() {
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try {
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// ✅ FIX: Ensure valid backend before fetching
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if (!currentBackendModel || currentBackendModel === ':') {
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currentBackendModel = 'plato';
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}
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const apiUrl = getApiUrl();
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console.log(`Fetching models from: ${apiUrl}`);
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const response = await fetch(`${apiUrl}/models`);
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const selector = document.getElementById('backendModelSelector');
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if (response.ok) {
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const data = await response.json();
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const { backendKey } = splitBackendModel(currentBackendModel);
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const effectiveBackendKey = backendKey || 'plato';
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availableBackendModels = data.data.map(model => ({
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backend: effectiveBackendKey,
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model: model.id
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}));
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populateBackendModelSelector();
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// ✅ FIX: Only auto-select if no model is set
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const hasModel = currentBackendModel && currentBackendModel.includes(':') && currentBackendModel.split(':')[1];
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if (!hasModel && availableBackendModels.length > 0 && selector) {
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currentBackendModel = `${availableBackendModels[0].backend}:${availableBackendModels[0].model}`;
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selector.value = currentBackendModel;
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}
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updateBackendModelDisplay();
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} else {
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console.error('Failed to fetch models:', response.statusText);
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if (selector) {
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selector.innerHTML = '<option value="">Error loading models</option>';
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}
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}
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} catch (error) {
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console.error('Error fetching models:', error);
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const selector = document.getElementById('backendModelSelector');
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if (selector) {
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selector.innerHTML = '<option value="">Error loading models</option>';
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}
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}
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}
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function populateBackendModelSelector() {
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const selector = document.getElementById('backendModelSelector');
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if (!selector) return;
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if (availableBackendModels.length === 0) {
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selector.innerHTML = '<option value="">No models available</option>';
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return;
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}
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selector.innerHTML = availableBackendModels.map(backendModel =>
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`<option value="${backendModel.backend}:${backendModel.model}">${BACKENDS[backendModel.backend].name} - ${backendModel.model}</option>`
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).join('');
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if (currentBackendModel) {
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selector.value = currentBackendModel;
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}
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}
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function getApiMessages() {
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return chatHistory.slice(-MAX_CHAT_HISTORY).map(({ role, content }) => ({
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role,
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content
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}));
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}
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function trimChatHistory() {
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if (chatHistory.length > MAX_CHAT_HISTORY) {
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chatHistory = chatHistory.slice(-MAX_CHAT_HISTORY);
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localStorage.setItem('chatHistory', JSON.stringify(chatHistory));
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}
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}
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document.addEventListener('DOMContentLoaded', () => {
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const backendModelSelector = document.getElementById('backendModelSelector');
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if (backendModelSelector) {
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backendModelSelector.addEventListener('change', (e) => {
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currentBackendModel = e.target.value;
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updateBackendModelDisplay();
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fetchBackendModels();
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});
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}
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});
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const chatLog = document.getElementById('chatLog');
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const userInput = document.getElementById('userInput');
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const sendBtn = document.getElementById('sendBtn');
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const streamToggle = document.getElementById('streamToggle');
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const markdownToggle = document.getElementById('markdownToggle');
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const modelNameSpan = document.getElementById('modelName');
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marked.setOptions({
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gfm: true,
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breaks: true,
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highlight: function(code, lang) {
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if (window.hljs) {
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const language = hljs.getLanguage(lang) ? lang : 'plaintext';
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return hljs.highlight(code, { language }).value;
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}
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return code;
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}
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});
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function autoResize(textarea) {
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textarea.style.height = 'auto';
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textarea.style.height = Math.min(textarea.scrollHeight, 300) + 'px';
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}
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function addMessage(role, content, markdown = false, messageId = null, saveToHistory = true) {
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const messageDiv = document.createElement('div');
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messageDiv.className = `message message-${role}`;
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if (messageId) {
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messageDiv.id = messageId;
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}
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const headerDiv = document.createElement('div');
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headerDiv.className = `message-header ${role}`;
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const avatar = document.createElement('div');
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avatar.className = `avatar ${role}-avatar`;
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avatar.textContent = role === 'user' ? '👤' : '🤖';
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const name = document.createElement('span');
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name.textContent = role === 'user' ? 'You' : 'Assistant';
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headerDiv.appendChild(avatar);
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headerDiv.appendChild(name);
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const contentDiv = document.createElement('div');
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if (markdown && role === 'assistant' && markdownToggle.checked) {
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contentDiv.className = 'markdown-content';
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const processedContent = parseThinkingTags(content);
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contentDiv.innerHTML = marked.parse(processedContent);
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if (window.hljs) {
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setTimeout(() => {
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contentDiv.querySelectorAll('pre code').forEach((block) => {
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hljs.highlightElement(block);
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});
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}, 0);
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}
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} else {
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const processedContent = parseThinkingTags(content);
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contentDiv.innerHTML = processedContent;
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contentDiv.style.whiteSpace = 'pre-wrap';
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contentDiv.style.padding = '8px 0';
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contentDiv.style.color = '#e0e0e0';
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}
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messageDiv.appendChild(headerDiv);
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messageDiv.appendChild(contentDiv);
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if (chatLog) {
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chatLog.appendChild(messageDiv);
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chatLog.scrollTop = chatLog.scrollHeight;
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}
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if (saveToHistory) {
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chatHistory.push({ role, content, markdown, messageId });
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trimChatHistory();
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localStorage.setItem('chatHistory', JSON.stringify(chatHistory));
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}
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return contentDiv;
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}
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function parseThinkingTags(content) {
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let result = content;
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let thinkingCounter = 0;
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const completeThinkRegex = /\[THINK\]([\s\S]*?)\[\/THINK\]/gi;
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result = result.replace(completeThinkRegex, (match, thinkContent) => {
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thinkingCounter++;
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const id = `thinking-${Date.now()}-${thinkingCounter}`;
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return `<div class="thinking-block">
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<div class="thinking-header" onclick="toggleThinking('${id}')">
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<span class="thinking-toggle" id="${id}-toggle">?</span>
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<span>? Thinking...</span>
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</div>
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<div class="thinking-content" id="${id}">${thinkContent.trim()}</div>
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</div>`;
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});
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const incompleteThinkRegex = /\[THINK\]([\s\S]*?)$/gi;
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result = result.replace(incompleteThinkRegex, (match, thinkContent) => {
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thinkingCounter++;
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const id = `thinking-${Date.now()}-${thinkingCounter}`;
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return `<div class="thinking-block">
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<div class="thinking-header" onclick="toggleThinking('${id}')">
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<span class="thinking-toggle" id="${id}-toggle">?</span>
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<span>? Thinking...</span>
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</div>
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<div class="thinking-content" id="${id}">${thinkContent.trim()}</div>
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</div>`;
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});
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return result;
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}
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window.toggleThinking = function(id) {
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const content = document.getElementById(id);
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const toggle = document.getElementById(id + '-toggle');
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if (content && toggle) {
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content.classList.toggle('hidden');
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toggle.classList.toggle('collapsed');
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}
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};
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function updateMessageContent(contentDiv, newContent, markdown = false, role) {
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const processedContent = parseThinkingTags(newContent);
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if (markdown && role === 'assistant' && markdownToggle && markdownToggle.checked) {
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contentDiv.innerHTML = marked.parse(processedContent);
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if (window.hljs) {
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setTimeout(() => {
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contentDiv.querySelectorAll('pre code').forEach((block) => {
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hljs.highlightElement(block);
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});
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}, 0);
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}
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} else {
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contentDiv.innerHTML = processedContent;
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contentDiv.style.whiteSpace = 'pre-wrap';
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contentDiv.style.padding = '8px 0';
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contentDiv.style.color = '#e0e0e0';
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}
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if (chatLog) {
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chatLog.scrollTop = chatLog.scrollHeight;
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}
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}
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function showTypingIndicator() {
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const typingDiv = document.createElement('div');
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typingDiv.id = 'typingIndicator';
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typingDiv.className = 'message message-assistant';
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const headerDiv = document.createElement('div');
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headerDiv.className = 'message-header assistant';
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const avatar = document.createElement('div');
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avatar.className = 'avatar assistant-avatar';
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avatar.textContent = '🤖';
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const name = document.createElement('span');
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name.textContent = 'Assistant';
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headerDiv.appendChild(avatar);
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headerDiv.appendChild(name);
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const dotsDiv = document.createElement('div');
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dotsDiv.className = 'typing-indicator';
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dotsDiv.innerHTML = `
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<div class="typing-dot"></div>
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<div class="typing-dot"></div>
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<div class="typing-dot"></div>
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<span style="margin-left: 8px;">Thinking...</span>
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`;
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typingDiv.appendChild(headerDiv);
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typingDiv.appendChild(dotsDiv);
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if (chatLog) {
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chatLog.appendChild(typingDiv);
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chatLog.scrollTop = chatLog.scrollHeight;
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}
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return typingDiv;
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}
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function removeTypingIndicator(typingDiv) {
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if (typingDiv && typingDiv.parentNode) {
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typingDiv.parentNode.removeChild(typingDiv);
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}
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}
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async function handleStreamingResponse(userMessage) {
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const messageId = 'msg-' + Date.now();
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let accumulatedContent = '';
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let contentDiv = null;
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const messageDiv = document.createElement('div');
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messageDiv.className = 'message message-assistant';
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messageDiv.id = messageId;
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const headerDiv = document.createElement('div');
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headerDiv.className = 'message-header assistant';
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const avatar = document.createElement('div');
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avatar.className = 'avatar assistant-avatar';
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avatar.textContent = '🤖';
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const name = document.createElement('span');
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name.textContent = 'Assistant';
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headerDiv.appendChild(avatar);
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headerDiv.appendChild(name);
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contentDiv = document.createElement('div');
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contentDiv.className = 'markdown-content';
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messageDiv.appendChild(headerDiv);
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messageDiv.appendChild(contentDiv);
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if (chatLog) {
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chatLog.appendChild(messageDiv);
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}
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const cursorSpan = document.createElement('span');
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cursorSpan.className = 'streaming-cursor';
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contentDiv.appendChild(cursorSpan);
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// ✅ FIX: Create AbortController BEFORE fetch
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currentStreamController = new AbortController();
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isStreaming = true;
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try {
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const { backendKey, model } = splitBackendModel(currentBackendModel);
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const selectedModel = model || availableBackendModels[0]?.model || 'local-model';
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const requestBody = {
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model: selectedModel,
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messages: getApiMessages(),
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stream: true,
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temperature: 0.7,
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max_tokens: 2000
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};
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const response = await fetch(`${getApiUrl()}/chat/completions`, {
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method: 'POST',
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headers: {
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'Content-Type': 'application/json',
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'Authorization': `Bearer ${API_KEY}`
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},
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body: JSON.stringify(requestBody),
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signal: currentStreamController.signal // ✅ Now works correctly
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});
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if (!response.ok) {
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throw new Error(`API Error: ${response.status} ${response.statusText}`);
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}
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const reader = response.body.getReader();
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const decoder = new TextDecoder();
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let updateScheduled = false;
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let lastUpdate = Date.now();
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const MIN_UPDATE_INTERVAL = 100;
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function scheduleUpdate() {
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if (updateScheduled) return;
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const now = Date.now();
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const timeSinceLastUpdate = now - lastUpdate;
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if (timeSinceLastUpdate >= MIN_UPDATE_INTERVAL) {
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updateScheduled = true;
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requestAnimationFrame(() => {
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updateMessageContent(contentDiv, accumulatedContent, markdownToggle && markdownToggle.checked, 'assistant');
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if (cursorSpan.parentNode) {
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contentDiv.appendChild(cursorSpan);
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}
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if (chatLog) {
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chatLog.scrollTop = chatLog.scrollHeight;
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}
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lastUpdate = Date.now();
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updateScheduled = false;
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});
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} else {
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updateScheduled = true;
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setTimeout(() => {
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requestAnimationFrame(() => {
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updateMessageContent(contentDiv, accumulatedContent, markdownToggle && markdownToggle.checked, 'assistant');
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if (cursorSpan.parentNode) {
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contentDiv.appendChild(cursorSpan);
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}
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if (chatLog) {
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chatLog.scrollTop = chatLog.scrollHeight;
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}
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lastUpdate = Date.now();
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updateScheduled = false;
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});
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}, MIN_UPDATE_INTERVAL - timeSinceLastUpdate);
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}
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}
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while (true) {
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const { done, value } = await reader.read();
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if (done) break;
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const chunk = decoder.decode(value);
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const lines = chunk.split('\n').filter(line => line.trim() !== '');
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for (const line of lines) {
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if (line.startsWith('data: ')) {
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const data = line.slice(6);
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if (data === '[DONE]') {
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isStreaming = false;
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currentStreamController = null;
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updateMessageContent(contentDiv, accumulatedContent, markdownToggle.checked, 'assistant');
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if (cursorSpan.parentNode) {
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cursorSpan.parentNode.removeChild(cursorSpan);
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}
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chatLog.scrollTop = chatLog.scrollHeight;
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return;
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}
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try {
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const parsed = JSON.parse(data);
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if (parsed.choices && parsed.choices[0].delta.content) {
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accumulatedContent += parsed.choices[0].delta.content;
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scheduleUpdate();
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}
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} catch (e) {
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console.log('Error parsing stream data:', e);
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}
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}
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}
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}
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updateMessageContent(contentDiv, accumulatedContent, markdownToggle.checked, 'assistant');
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chatLog.scrollTop = chatLog.scrollHeight;
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} catch (error) {
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console.error('Streaming error:', error);
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if (error.name !== 'AbortError') {
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updateMessageContent(contentDiv, `Error: ${error.message}`, false, 'assistant');
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}
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} finally {
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isStreaming = false;
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currentStreamController = null;
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sendBtn.disabled = false;
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if (cursorSpan && cursorSpan.parentNode) {
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cursorSpan.parentNode.removeChild(cursorSpan);
|
|
}
|
|
}
|
|
}
|
|
|
|
async function handleNonStreamingResponse(userMessage) {
|
|
let typingIndicator = null;
|
|
try {
|
|
typingIndicator = showTypingIndicator();
|
|
|
|
const { backendKey, model } = splitBackendModel(currentBackendModel);
|
|
const selectedModel = model || availableBackendModels[0]?.model || 'local-model';
|
|
|
|
const requestBody = {
|
|
model: selectedModel,
|
|
messages: getApiMessages(),
|
|
stream: false,
|
|
temperature: 0.7,
|
|
max_tokens: 2000
|
|
};
|
|
|
|
const response = await fetch(`${getApiUrl()}/chat/completions`, {
|
|
method: 'POST',
|
|
headers: {
|
|
'Content-Type': 'application/json',
|
|
'Authorization': `Bearer ${API_KEY}`
|
|
},
|
|
body: JSON.stringify(requestBody)
|
|
});
|
|
|
|
if (!response.ok) {
|
|
throw new Error(`API Error: ${response.status} ${response.statusText}`);
|
|
}
|
|
|
|
const data = await response.json();
|
|
removeTypingIndicator(typingIndicator);
|
|
|
|
if (data.choices && data.choices.length > 0) {
|
|
const assistantReply = data.choices[0].message.content;
|
|
addMessage('assistant', assistantReply, markdownToggle.checked);
|
|
} else {
|
|
addMessage('assistant', 'No response generated.', false);
|
|
}
|
|
|
|
} catch (error) {
|
|
console.error('Error:', error);
|
|
if (typingIndicator) {
|
|
removeTypingIndicator(typingIndicator);
|
|
}
|
|
addMessage('assistant', `Error: ${error.message}`, false);
|
|
} finally {
|
|
sendBtn.disabled = false;
|
|
userInput.focus();
|
|
}
|
|
}
|
|
|
|
function stopStream() {
|
|
if (currentStreamController) {
|
|
currentStreamController.abort();
|
|
isStreaming = false;
|
|
currentStreamController = null;
|
|
sendBtn.disabled = false;
|
|
sendBtn.textContent = 'Send';
|
|
}
|
|
}
|
|
|
|
async function sendMessage() {
|
|
const userMessage = userInput.value.trim();
|
|
if (!userMessage || isStreaming) return;
|
|
|
|
// ✅ FIX: Validate backend selection
|
|
if (!currentBackendModel) {
|
|
addMessage('assistant', 'Please select a backend model first.', false);
|
|
return;
|
|
}
|
|
|
|
addMessage('user', userMessage, false);
|
|
|
|
userInput.value = '';
|
|
userInput.style.height = 'auto';
|
|
sendBtn.disabled = true;
|
|
|
|
if (streamToggle.checked) {
|
|
sendBtn.textContent = 'Stop';
|
|
await handleStreamingResponse(userMessage);
|
|
} else {
|
|
await handleNonStreamingResponse(userMessage);
|
|
}
|
|
|
|
sendBtn.textContent = 'Send';
|
|
}
|
|
|
|
sendBtn.addEventListener('click', () => {
|
|
if (isStreaming) {
|
|
stopStream();
|
|
} else {
|
|
sendMessage();
|
|
}
|
|
});
|
|
|
|
userInput.addEventListener('keydown', (e) => {
|
|
if (e.key === 'Enter' && !e.shiftKey) {
|
|
e.preventDefault();
|
|
if (!isStreaming) {
|
|
sendMessage();
|
|
}
|
|
}
|
|
});
|
|
|
|
// ✅ Updated window.onload with better initialization
|
|
window.onload = () => {
|
|
if (userInput) userInput.focus();
|
|
|
|
// Set default backend BEFORE fetching
|
|
if (!currentBackendModel) {
|
|
currentBackendModel = 'plato';
|
|
}
|
|
|
|
fetchBackendModels().then(() => {
|
|
// Load chat history after models are fetched
|
|
if (chatLog) {
|
|
if (chatHistory.length === 0) {
|
|
//addMessage('assistant', welcomeMessage, true, null, false);
|
|
} else {
|
|
chatHistory.forEach(msg => {
|
|
if (typeof msg.content === 'string' && msg.content.trim()) {
|
|
addMessage(msg.role, msg.content, msg.markdown, msg.messageId, false);
|
|
}
|
|
});
|
|
}
|
|
}
|
|
});
|
|
|
|
document.getElementById('resetBtn')?.addEventListener('click', resetChat);
|
|
};
|
|
|
|
function resetChat() {
|
|
chatHistory = [];
|
|
localStorage.setItem('chatHistory', JSON.stringify(chatHistory));
|
|
|
|
if (chatLog) {
|
|
chatLog.innerHTML = '';
|
|
addMessage('assistant', welcomeMessage, true, null, false);
|
|
}
|
|
} |