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Update index.html
Browse files- index.html +109 -303
index.html
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
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<title>AI Assistant (Gemma 3 1B)</title>
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<style>
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/* Google Fonts (Using a common English font) */
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@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700&display=swap');
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/* CSS Variables (Neutral theme) */
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:root {
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--primary-color: #007bff;
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--
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--
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--
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--
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--
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--
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--bot-msg-border: #dee2e6;
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--system-msg-color: #6c757d;
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--border-color: #dee2e6;
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--input-bg: #ffffff;
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--input-border: #ced4da;
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--button-bg: var(--primary-color);
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--button-hover-bg: #0056b3;
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--button-disabled-bg: #adb5bd;
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--scrollbar-thumb: var(--primary-color);
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--scrollbar-track: #e9ecef;
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--header-bg: #ffffff;
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--header-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
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--container-shadow: 0 4px 15px rgba(0, 0, 0, 0.07);
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}
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/* Reset and Base Styles */
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* { box-sizing: border-box; margin: 0; padding: 0; }
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html { height: 100%; }
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body {
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font-family: 'Roboto', sans-serif;
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min-height: 100vh; background-color: var(--bg-color); color: var(--text-color);
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padding: 5px; overscroll-behavior: none;
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}
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/* Chat Container */
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#chat-container {
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width: 100%; max-width: 600px; height: calc(100vh - 10px); max-height: 800px;
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background-color: #ffffff; border-radius: 12px;
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overflow: hidden; border: 1px solid var(--border-color);
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}
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/* Header */
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h1 {
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text-align: center; color: var(--primary-color); padding: 15px;
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position: relative; z-index: 10;
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}
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/* Chatbox Area */
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#chatbox {
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flex-grow: 1; overflow-y: auto; padding: 15px; display: flex; flex-direction: column;
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background-color: var(--bg-color); /* Match body background */
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}
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#chatbox::-webkit-scrollbar { width: 6px; }
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#chatbox::-webkit-scrollbar-track { background: var(--scrollbar-track); border-radius: 3px; }
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#chatbox::-webkit-scrollbar-thumb { background-color: var(--scrollbar-thumb); border-radius: 3px; }
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/* Message Bubbles */
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#messages div {
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padding: 10px 15px; border-radius: 16px; max-width: 85%; word-wrap: break-word;
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position: relative; animation: fadeIn 0.25s ease-out;
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}
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@keyframes fadeIn { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: translateY(0); } }
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.
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}
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.
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border-bottom-left-radius: 4px; margin-right: auto;
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}
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.bot-message a { color: var(--primary-color); text-decoration: none; }
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.bot-message a:hover { text-decoration: underline; }
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.system-message {
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font-style: italic; color: var(--system-msg-color); text-align: center; font-size: 0.85em;
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background-color: transparent; box-shadow: none; align-self: center; max-width: 100%;
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padding: 5px 0; animation: none;
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}
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/* Loading & Status Indicators */
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.status-indicator {
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text-align: center; padding: 8px 0; color: var(--system-msg-color); font-size: 0.9em;
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height: 24px; display: flex; align-items: center; justify-content: center; gap: 8px;
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flex-shrink: 0; background-color: var(--bg-color);
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}
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#loading span.spinner {
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display: inline-block; width: 14px; height: 14px; border: 2px solid var(--primary-color);
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border-bottom-color: transparent; border-radius: 50%; animation: spin 1s linear infinite; vertical-align: middle;
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}
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@keyframes spin { to { transform: rotate(360deg); } }
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#input-area {
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display: flex; padding: 10px 12px; border-top: 1px solid var(--border-color);
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background-color: var(--header-bg); align-items: center; gap: 8px; flex-shrink: 0;
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}
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#userInput {
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flex-grow: 1; padding: 10px 15px; border: 1px solid var(--input-border);
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border-radius: 20px; outline: none; font-size: 1em; font-family: 'Roboto', sans-serif;
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background-color: var(--input-bg); transition: border-color 0.2s ease;
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min-height: 42px; resize: none; overflow-y: auto;
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}
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#userInput:focus { border-color: var(--primary-color); }
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/* Buttons */
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.control-button {
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padding: 0; border: none; border-radius: 50%; cursor: pointer;
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background-color: var(--button-bg); color: white; width: 42px; height: 42px;
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font-size: 1.3em; display: flex; align-items: center; justify-content: center;
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flex-shrink: 0; transition: background-color 0.2s ease, transform 0.1s ease;
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box-shadow: 0 1px 2px rgba(0,0,0,0.08);
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}
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.control-button:hover:not(:disabled) { background-color: var(--button-hover-bg); transform: translateY(-1px); }
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.control-button:active:not(:disabled) { transform: scale(0.95); }
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.control-button:disabled { background-color: var(--button-disabled-bg); cursor: not-allowed; transform: none; box-shadow: none; }
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#toggleSpeakerButton.muted { background-color: #aaa; }
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/* Responsive Design */
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@media (max-width: 600px) {
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body { padding: 0; }
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h1 { font-size: 1.1em; padding: 12px; }
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#chatbox { padding: 12px 8px; gap: 10px; }
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#messages div { max-width: 90%; font-size: 0.95em; padding: 9px 14px;}
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#input-area { padding: 8px; gap: 5px; }
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#userInput { padding: 9px 14px; min-height: 40px; }
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.control-button { width: 40px; height: 40px; font-size: 1.2em; }
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}
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</style>
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<!-- Import map -->
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<script type="importmap">
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{ "imports": { "@xenova/transformers": "https://cdn.jsdelivr.net/npm/@xenova/[email protected]" } }
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</script>
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</head>
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<body>
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<div id="chat-container">
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<h1 id="chatbot-name">AI Assistant</h1>
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<div id="loading" class="status-indicator" style="display: none;"></div>
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<div id="speech-status" class="status-indicator" style="display: none;"></div>
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<div id="chatbox">
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</div>
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</div>
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<div id="input-area">
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<textarea id="userInput" placeholder="How can I help you today?" rows="1" disabled></textarea>
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<button id="speechButton" class="control-button" title="Speak message" disabled>🎤</button>
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<button id="toggleSpeakerButton" class="control-button" title="Toggle AI speech output" disabled>🔊</button>
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<button id="sendButton" class="control-button" title="Send message" disabled>➤</button>
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</div>
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</div>
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import { pipeline, env } from '@xenova/transformers';
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// --- Configuration ---
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const MODEL_NAME = 'onnx-community/gemma-3-1b-it-ONNX-GQA';
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const TASK = 'text-generation';
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// ONNX Runtime & WebGPU config
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env.allowLocalModels = false;
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const toggleSpeakerButton = document.getElementById('toggleSpeakerButton');
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const speechStatus = document.getElementById('speech-status');
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// --- State Management
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let generator = null;
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let conversationHistory = [];
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let botState = {
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botName: "AI Assistant",
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userName: "User", // English Default Name
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botSettings: { useSpeechOutput: true }
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};
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// --- Web Speech API
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let recognition = null;
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let synthesis = window.speechSynthesis;
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let targetVoice = null;
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let isListening = false;
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// --- Initialization ---
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loadState();
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chatbotNameElement.textContent = botState.botName;
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updateSpeakerButtonUI();
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initializeSpeechAPI();
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await initializeModel();
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setupInputAutosize();
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setTimeout(loadVoices, 500);
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});
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// --- State Persistence ---
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function loadState() {
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const savedState = localStorage.getItem(stateKey);
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if (savedState) {
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try {
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const loadedState = JSON.parse(savedState);
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botState = {
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...botState, ...loadedState,
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botSettings: { ...botState.botSettings, ...(loadedState.botSettings || {}) },
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};
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} catch (e) { console.error("Failed to parse state:", e); }
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}
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const savedHistory = localStorage.getItem(historyKey);
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if (savedHistory) {
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try { conversationHistory = JSON.parse(savedHistory); displayHistory(); }
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catch (e) { console.error("Failed to parse history:", e); conversationHistory = []; }
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}
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}
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function saveState() {
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localStorage.setItem(stateKey, JSON.stringify(botState));
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localStorage.setItem(historyKey, JSON.stringify(conversationHistory));
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}
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function displayHistory() {
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chatbox.innerHTML = '';
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conversationHistory.forEach(msg => displayMessage(msg.sender, msg.text, false));
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}
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// --- UI Update Functions ---
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function displayMessage(sender, text, animate = true) {
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const messageDiv = document.createElement('div');
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messageDiv.classList.add(messageClass);
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if (!animate) messageDiv.style.animation = 'none';
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chatbox.scrollTo({ top: chatbox.scrollHeight, behavior: animate ? 'smooth' : 'auto' });
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}
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function setLoading(isLoading, message = "AI thinking...") {
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loadingIndicator.style.display = isLoading ? 'flex' : 'none';
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loadingIndicator.innerHTML = isLoading ? `<span class="spinner"></span> ${message}` : '';
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const disableButtons = isLoading || !generator;
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speechButton.disabled = disableButtons || isListening || !recognition;
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toggleSpeakerButton.disabled = disableButtons || !synthesis;
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}
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function updateSpeakerButtonUI() {
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toggleSpeakerButton.textContent = botState.botSettings.useSpeechOutput ? '🔊' : '🔇';
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toggleSpeakerButton.title = botState.botSettings.useSpeechOutput ? 'Turn off AI speech' : 'Turn on AI speech';
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toggleSpeakerButton.classList.toggle('muted', !botState.botSettings.useSpeechOutput);
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}
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speechStatus.textContent = message;
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speechStatus.style.display = message ? 'flex' : 'none';
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if (message) loadingIndicator.style.display = 'none';
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}
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userInput.addEventListener('input', () => {
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userInput.style.height = 'auto';
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userInput.style.height = userInput.scrollHeight + 'px';
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sendButton.disabled = userInput.value.trim() === '' || !generator || loadingIndicator.style.display === 'flex';
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});
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}
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// --- Model & AI Logic ---
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async function initializeModel() {
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setLoading(true, "Connecting to AI model..."); //
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displayMessage('system', `[WARNING] If loading fails with 'TypeError', the model ${MODEL_NAME} might be incompatible with this library version. Consider trying 'Xenova/gemma-2b-it'.`, false);
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try {
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generator = await pipeline(TASK, MODEL_NAME, {
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progress_callback: (progress) => {
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const msg = `[Loading: ${progress.status}] ${progress.file ? progress.file.split('/').pop() : ''} (${Math.round(progress.progress || 0)}%)`;
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setLoading(true, msg);
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},
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});
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displayMessage('system', "[NOTICE] AI Model ready! How can I assist you?", false);
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} catch (error) {
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console.error("Model loading failed:", error);
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setLoading(false);
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loadingIndicator.textContent = 'Model Load Failed';
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return;
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}
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// Build prompt for English conversation
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function buildPrompt() {
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const historyLimit = 6;
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prompt += `You are '${botState.botName}', a helpful AI assistant. Answer the user's questions clearly and concisely in English.\n<end_of_turn>\n`;
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recentHistory.forEach(msg => {
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const role = msg.sender === 'user' ? 'user' : 'model';
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prompt += `<start_of_turn>${role}\n${msg.text}\n<end_of_turn>\n`;
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});
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prompt += "<start_of_turn>model\n"; // Model response starts here
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console.log("Generated English Prompt:", prompt);
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return prompt;
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}
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// Cleanup response
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function cleanupResponse(responseText, prompt) {
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let cleaned = responseText;
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cleaned = cleaned.replace(/<end_of_turn>/g, '').trim();
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cleaned = cleaned.replace(/<start_of_turn>/g, '').trim();
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cleaned = cleaned.replace(/^['"]/, '').replace(/['"]$/, '');
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if (!cleaned || cleaned.length < 2) {
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console.warn("Generated reply seems empty:", cleaned);
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const fallbacks = [ "Sorry, I didn't quite understand. Could you please rephrase?", "Hmm, I'm not sure how to respond to that. Can you try asking differently?", "Is there something else I can help you with?" ]; // English fallbacks
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return fallbacks[Math.floor(Math.random() * fallbacks.length)];
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}
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return cleaned;
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}
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// --- Main Interaction Logic ---
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async function handleUserMessage() {
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const userText = userInput.value.trim();
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sendButton.disabled = true;
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displayMessage('user', userText);
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conversationHistory.push({ sender: 'user', text: userText });
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setLoading(true);
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const prompt = buildPrompt(); // Get English prompt
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try {
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const outputs = await generator(prompt, {
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max_new_tokens: 300,
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temperature: 0.7,
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repetition_penalty: 1.1,
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top_k: 50,
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top_p: 0.9,
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do_sample: true,
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});
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const rawResponse = Array.isArray(outputs) ? outputs[0].generated_text : outputs.generated_text;
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const replyText = cleanupResponse(rawResponse, prompt);
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console.log("Cleaned English Output:", replyText);
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conversationHistory.push({ sender: 'bot', text: replyText });
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if (botState.botSettings.useSpeechOutput && synthesis && targetVoice) {
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speakText(replyText); // Speak English response
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}
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saveState();
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} catch (error) {
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console.error("AI response generation error:", error);
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displayMessage('bot', errorReply);
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conversationHistory.push({ sender: 'bot', text: errorReply });
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} finally {
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setLoading(false);
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userInput.focus();
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}
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}
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// --- Speech API Functions (English) ---
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function initializeSpeechAPI() {
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const SpeechRecognition = window.SpeechRecognition || window.webkitSpeechRecognition;
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if (SpeechRecognition) {
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recognition.lang = 'en-US'; // Set to English
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recognition.continuous = false; recognition.interimResults = false;
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recognition.onstart = () => { isListening = true; speechButton.disabled = true; speechButton.textContent = '👂'; showSpeechStatus('Listening...'); }; // English status
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recognition.onresult = (event) => { userInput.value = event.results[0][0].transcript; userInput.dispatchEvent(new Event('input')); handleUserMessage(); };
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recognition.onerror = (event) => { console.error("Speech error:", event.error); showSpeechStatus(`Speech recognition error (${event.error})`); setTimeout(() => showSpeechStatus(''), 3000); }; // English status
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recognition.onend = () => { isListening = false; speechButton.disabled = !generator; speechButton.textContent = '🎤'; if (speechStatus.textContent === 'Listening...') showSpeechStatus(''); };
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speechButton.disabled = false;
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} else { console.warn("Speech Recognition not supported."); speechButton.style.display = 'none'; }
|
429 |
-
|
430 |
-
if (!synthesis) { console.warn("Speech Synthesis not supported."); toggleSpeakerButton.style.display = 'none'; }
|
431 |
-
else {
|
432 |
-
toggleSpeakerButton.addEventListener('click', () => { botState.botSettings.useSpeechOutput = !botState.botSettings.useSpeechOutput; updateSpeakerButtonUI(); saveState(); if (!botState.botSettings.useSpeechOutput) synthesis.cancel(); });
|
433 |
-
toggleSpeakerButton.disabled = false;
|
434 |
-
}
|
435 |
}
|
436 |
-
|
437 |
-
|
438 |
-
if (!synthesis) return;
|
439 |
-
let voices = synthesis.getVoices();
|
440 |
-
if (voices.length === 0) {
|
441 |
-
synthesis.onvoiceschanged = () => { voices = synthesis.getVoices(); findAndSetVoice(voices); };
|
442 |
-
} else { findAndSetVoice(voices); }
|
443 |
}
|
444 |
-
|
445 |
-
|
446 |
-
|
447 |
-
// Prioritize US English voices
|
448 |
-
targetVoice = voices.find(v => v.lang === 'en-US');
|
449 |
-
// Fallback to any English voice
|
450 |
-
if (!targetVoice) targetVoice = voices.find(v => v.lang.startsWith('en-'));
|
451 |
-
|
452 |
-
if (targetVoice) {
|
453 |
-
console.log("Using English voice:", targetVoice.name, targetVoice.lang);
|
454 |
-
} else {
|
455 |
-
console.warn("No suitable English voice found. Speech output might use default voice.");
|
456 |
-
displayMessage('system', "[NOTICE] No English voice found. Speech output may use the default system voice.", false); // English message
|
457 |
-
}
|
458 |
}
|
459 |
-
|
460 |
-
|
461 |
-
function speakText(text) {
|
462 |
-
if (!synthesis || !botState.botSettings.useSpeechOutput) return;
|
463 |
-
synthesis.cancel();
|
464 |
-
const utterance = new SpeechSynthesisUtterance(text);
|
465 |
-
if (targetVoice) {
|
466 |
-
utterance.voice = targetVoice;
|
467 |
-
utterance.lang = targetVoice.lang; // Use the found voice's language
|
468 |
-
} else {
|
469 |
-
utterance.lang = 'en-US'; // Default to US English if no voice found
|
470 |
-
}
|
471 |
-
utterance.rate = 1.0; utterance.pitch = 1.0;
|
472 |
-
synthesis.speak(utterance);
|
473 |
}
|
474 |
|
475 |
// --- Event Listeners ---
|
476 |
sendButton.addEventListener('click', handleUserMessage);
|
477 |
-
userInput.addEventListener('keypress', (e) => {
|
478 |
-
|
479 |
-
});
|
480 |
-
speechButton.addEventListener('click', () => {
|
481 |
-
if (recognition && !isListening && generator) {
|
482 |
-
try { recognition.start(); }
|
483 |
-
catch (error) { console.error("Rec start fail:", error); showSpeechStatus(`Failed to start recognition`); setTimeout(() => showSpeechStatus(''), 2000); isListening = false; speechButton.disabled = !generator; speechButton.textContent = '🎤';}
|
484 |
-
}
|
485 |
-
});
|
486 |
|
487 |
</script>
|
488 |
</body>
|
|
|
1 |
<!DOCTYPE html>
|
2 |
+
<html lang="en">
|
3 |
<head>
|
4 |
<meta charset="UTF-8">
|
5 |
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
|
6 |
+
<title>AI Assistant (Gemma 3 1B - Q4 Attempt)</title>
|
7 |
<style>
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|
8 |
@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700&display=swap');
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:root {
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10 |
+
--primary-color: #007bff; --secondary-color: #6c757d; --text-color: #212529;
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--bg-color: #f8f9fa; --user-msg-bg: #e7f5ff; --user-msg-text: #004085;
|
12 |
+
--bot-msg-bg: #ffffff; --bot-msg-border: #dee2e6; --system-msg-color: #6c757d;
|
13 |
+
--border-color: #dee2e6; --input-bg: #ffffff; --input-border: #ced4da;
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14 |
+
--button-bg: var(--primary-color); --button-hover-bg: #0056b3; --button-disabled-bg: #adb5bd;
|
15 |
+
--scrollbar-thumb: var(--primary-color); --scrollbar-track: #e9ecef;
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16 |
+
--header-bg: #ffffff; --header-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
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--container-shadow: 0 4px 15px rgba(0, 0, 0, 0.07);
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}
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* { box-sizing: border-box; margin: 0; padding: 0; }
|
20 |
html { height: 100%; }
|
21 |
body {
|
22 |
+
font-family: 'Roboto', sans-serif; display: flex; flex-direction: column; align-items: center; justify-content: center;
|
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+
min-height: 100vh; background-color: var(--bg-color); color: var(--text-color); padding: 5px; overscroll-behavior: none;
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|
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}
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|
25 |
#chat-container {
|
26 |
width: 100%; max-width: 600px; height: calc(100vh - 10px); max-height: 800px;
|
27 |
+
background-color: #ffffff; border-radius: 12px; box-shadow: var(--container-shadow);
|
28 |
+
display: flex; flex-direction: column; overflow: hidden; border: 1px solid var(--border-color);
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|
29 |
}
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|
30 |
h1 {
|
31 |
+
text-align: center; color: var(--primary-color); padding: 15px; background-color: var(--header-bg);
|
32 |
+
border-bottom: 1px solid var(--border-color); font-size: 1.2em; font-weight: 500; flex-shrink: 0;
|
33 |
+
box-shadow: var(--header-shadow); position: relative; z-index: 10;
|
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|
34 |
}
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|
35 |
#chatbox {
|
36 |
+
flex-grow: 1; overflow-y: auto; padding: 15px; display: flex; flex-direction: column; gap: 12px;
|
37 |
+
scrollbar-width: thin; scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track); background-color: var(--bg-color);
|
|
|
38 |
}
|
39 |
#chatbox::-webkit-scrollbar { width: 6px; }
|
40 |
#chatbox::-webkit-scrollbar-track { background: var(--scrollbar-track); border-radius: 3px; }
|
41 |
#chatbox::-webkit-scrollbar-thumb { background-color: var(--scrollbar-thumb); border-radius: 3px; }
|
|
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|
42 |
#messages div {
|
43 |
+
padding: 10px 15px; border-radius: 16px; max-width: 85%; word-wrap: break-word; line-height: 1.5;
|
44 |
+
font-size: 1em; box-shadow: 0 1px 2px rgba(0,0,0,0.05); position: relative; animation: fadeIn 0.25s ease-out;
|
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|
45 |
}
|
46 |
@keyframes fadeIn { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: translateY(0); } }
|
47 |
+
.user-message { background: var(--user-msg-bg); color: var(--user-msg-text); align-self: flex-end; border-bottom-right-radius: 4px; margin-left: auto; }
|
48 |
+
.bot-message { background-color: var(--bot-msg-bg); border: 1px solid var(--bot-msg-border); align-self: flex-start; border-bottom-left-radius: 4px; margin-right: auto; }
|
49 |
+
.bot-message a { color: var(--primary-color); text-decoration: none; } .bot-message a:hover { text-decoration: underline; }
|
50 |
+
.system-message { font-style: italic; color: var(--system-msg-color); text-align: center; font-size: 0.85em; background-color: transparent; box-shadow: none; align-self: center; max-width: 100%; padding: 5px 0; animation: none; }
|
51 |
+
.error-message { color: #dc3545; font-weight: 500; background-color: #f8d7da; border: 1px solid #f5c6cb; padding: 10px 15px; border-radius: 8px; align-self: stretch; text-align: left; } /* Error Message Style */
|
52 |
+
.status-indicator { text-align: center; padding: 8px 0; color: var(--system-msg-color); font-size: 0.9em; height: 24px; display: flex; align-items: center; justify-content: center; gap: 8px; flex-shrink: 0; background-color: var(--bg-color); }
|
53 |
+
#loading span.spinner { display: inline-block; width: 14px; height: 14px; border: 2px solid var(--primary-color); border-bottom-color: transparent; border-radius: 50%; animation: spin 1s linear infinite; vertical-align: middle; }
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|
54 |
@keyframes spin { to { transform: rotate(360deg); } }
|
55 |
+
#input-area { display: flex; padding: 10px 12px; border-top: 1px solid var(--border-color); background-color: var(--header-bg); align-items: center; gap: 8px; flex-shrink: 0; }
|
56 |
+
#userInput { flex-grow: 1; padding: 10px 15px; border: 1px solid var(--input-border); border-radius: 20px; outline: none; font-size: 1em; font-family: 'Roboto', sans-serif; background-color: var(--input-bg); transition: border-color 0.2s ease; min-height: 42px; resize: none; overflow-y: auto; }
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|
57 |
#userInput:focus { border-color: var(--primary-color); }
|
58 |
+
.control-button { padding: 0; border: none; border-radius: 50%; cursor: pointer; background-color: var(--button-bg); color: white; width: 42px; height: 42px; font-size: 1.3em; display: flex; align-items: center; justify-content: center; flex-shrink: 0; transition: background-color 0.2s ease, transform 0.1s ease; box-shadow: 0 1px 2px rgba(0,0,0,0.08); }
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|
59 |
.control-button:hover:not(:disabled) { background-color: var(--button-hover-bg); transform: translateY(-1px); }
|
60 |
.control-button:active:not(:disabled) { transform: scale(0.95); }
|
61 |
.control-button:disabled { background-color: var(--button-disabled-bg); cursor: not-allowed; transform: none; box-shadow: none; }
|
62 |
#toggleSpeakerButton.muted { background-color: #aaa; }
|
|
|
|
|
63 |
@media (max-width: 600px) {
|
64 |
+
body { padding: 0; } #chat-container { width: 100%; height: 100vh; max-height: none; border-radius: 0; border: none; box-shadow: none; }
|
65 |
+
h1 { font-size: 1.1em; padding: 12px; } #chatbox { padding: 12px 8px; gap: 10px; }
|
|
|
|
|
66 |
#messages div { max-width: 90%; font-size: 0.95em; padding: 9px 14px;}
|
67 |
+
#input-area { padding: 8px; gap: 5px; } #userInput { padding: 9px 14px; min-height: 40px; }
|
|
|
68 |
.control-button { width: 40px; height: 40px; font-size: 1.2em; }
|
69 |
}
|
70 |
</style>
|
|
|
|
|
71 |
<script type="importmap">
|
72 |
{ "imports": { "@xenova/transformers": "https://cdn.jsdelivr.net/npm/@xenova/[email protected]" } }
|
73 |
</script>
|
74 |
</head>
|
75 |
<body>
|
76 |
<div id="chat-container">
|
77 |
+
<h1 id="chatbot-name">AI Assistant</h1>
|
78 |
<div id="loading" class="status-indicator" style="display: none;"></div>
|
79 |
<div id="speech-status" class="status-indicator" style="display: none;"></div>
|
80 |
<div id="chatbox">
|
|
|
83 |
</div>
|
84 |
</div>
|
85 |
<div id="input-area">
|
86 |
+
<textarea id="userInput" placeholder="How can I help you today?" rows="1" disabled></textarea>
|
87 |
+
<button id="speechButton" class="control-button" title="Speak message" disabled>🎤</button>
|
88 |
+
<button id="toggleSpeakerButton" class="control-button" title="Toggle AI speech output" disabled>🔊</button>
|
89 |
+
<button id="sendButton" class="control-button" title="Send message" disabled>➤</button>
|
90 |
</div>
|
91 |
</div>
|
92 |
|
|
|
94 |
import { pipeline, env } from '@xenova/transformers';
|
95 |
|
96 |
// --- Configuration ---
|
97 |
+
const MODEL_NAME = 'onnx-community/gemma-3-1b-it-ONNX-GQA';
|
98 |
const TASK = 'text-generation';
|
99 |
+
const QUANTIZATION = 'q4'; // Re-adding based on model card example
|
100 |
|
101 |
// ONNX Runtime & WebGPU config
|
102 |
env.allowLocalModels = false;
|
|
|
114 |
const toggleSpeakerButton = document.getElementById('toggleSpeakerButton');
|
115 |
const speechStatus = document.getElementById('speech-status');
|
116 |
|
117 |
+
// --- State Management ---
|
118 |
let generator = null;
|
119 |
let conversationHistory = [];
|
120 |
let botState = {
|
121 |
+
botName: "AI Assistant", userName: "User",
|
|
|
122 |
botSettings: { useSpeechOutput: true }
|
123 |
};
|
124 |
+
const stateKey = 'generalBotState_gemma3_1b_en_v2'; // Updated key
|
125 |
+
const historyKey = 'generalBotHistory_gemma3_1b_en_v2';
|
126 |
|
127 |
+
// --- Web Speech API ---
|
128 |
let recognition = null;
|
129 |
let synthesis = window.speechSynthesis;
|
130 |
+
let targetVoice = null;
|
131 |
let isListening = false;
|
132 |
|
133 |
// --- Initialization ---
|
|
|
135 |
loadState();
|
136 |
chatbotNameElement.textContent = botState.botName;
|
137 |
updateSpeakerButtonUI();
|
138 |
+
initializeSpeechAPI();
|
139 |
+
await initializeModel();
|
140 |
setupInputAutosize();
|
141 |
+
setTimeout(loadVoices, 500);
|
142 |
});
|
143 |
|
144 |
// --- State Persistence ---
|
145 |
+
function loadState() { /* No changes needed */
|
146 |
const savedState = localStorage.getItem(stateKey);
|
147 |
+
if (savedState) { try { const loadedState = JSON.parse(savedState); botState = { ...botState, ...loadedState, botSettings: { ...botState.botSettings, ...(loadedState.botSettings || {}) }, }; } catch (e) { console.error("Failed to parse state:", e); } }
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
148 |
const savedHistory = localStorage.getItem(historyKey);
|
149 |
+
if (savedHistory) { try { conversationHistory = JSON.parse(savedHistory); displayHistory(); } catch (e) { console.error("Failed to parse history:", e); conversationHistory = []; } }
|
|
|
|
|
|
|
150 |
}
|
151 |
+
function saveState() { /* No changes needed */
|
152 |
localStorage.setItem(stateKey, JSON.stringify(botState));
|
153 |
localStorage.setItem(historyKey, JSON.stringify(conversationHistory));
|
154 |
}
|
155 |
+
function displayHistory() { /* No changes needed */
|
156 |
+
chatbox.innerHTML = ''; conversationHistory.forEach(msg => displayMessage(msg.sender, msg.text, false));
|
|
|
157 |
}
|
158 |
|
159 |
// --- UI Update Functions ---
|
160 |
+
function displayMessage(sender, text, animate = true, isError = false) { // Added isError flag
|
161 |
const messageDiv = document.createElement('div');
|
162 |
+
let messageClass = sender === 'user' ? 'user-message' : sender === 'bot' ? 'bot-message' : 'system-message';
|
163 |
+
if (isError) { messageClass = 'error-message'; } // Apply error style
|
164 |
+
|
165 |
messageDiv.classList.add(messageClass);
|
166 |
if (!animate) messageDiv.style.animation = 'none';
|
167 |
|
|
|
175 |
chatbox.scrollTo({ top: chatbox.scrollHeight, behavior: animate ? 'smooth' : 'auto' });
|
176 |
}
|
177 |
|
178 |
+
function setLoading(isLoading, message = "AI thinking...") { /* No changes needed */
|
179 |
loadingIndicator.style.display = isLoading ? 'flex' : 'none';
|
180 |
loadingIndicator.innerHTML = isLoading ? `<span class="spinner"></span> ${message}` : '';
|
181 |
const disableButtons = isLoading || !generator;
|
|
|
184 |
speechButton.disabled = disableButtons || isListening || !recognition;
|
185 |
toggleSpeakerButton.disabled = disableButtons || !synthesis;
|
186 |
}
|
187 |
+
function updateSpeakerButtonUI() { /* No changes needed */
|
|
|
188 |
toggleSpeakerButton.textContent = botState.botSettings.useSpeechOutput ? '🔊' : '🔇';
|
189 |
+
toggleSpeakerButton.title = botState.botSettings.useSpeechOutput ? 'Turn off AI speech' : 'Turn on AI speech';
|
190 |
toggleSpeakerButton.classList.toggle('muted', !botState.botSettings.useSpeechOutput);
|
191 |
}
|
192 |
+
function showSpeechStatus(message) { /* No changes needed */
|
193 |
+
speechStatus.textContent = message; speechStatus.style.display = message ? 'flex' : 'none';
|
|
|
|
|
194 |
if (message) loadingIndicator.style.display = 'none';
|
195 |
}
|
196 |
+
function setupInputAutosize() { /* No changes needed */
|
197 |
+
userInput.addEventListener('input', () => { userInput.style.height = 'auto'; userInput.style.height = userInput.scrollHeight + 'px'; sendButton.disabled = userInput.value.trim() === '' || !generator || loadingIndicator.style.display === 'flex'; });
|
|
|
|
|
|
|
|
|
|
|
198 |
}
|
199 |
|
200 |
// --- Model & AI Logic ---
|
201 |
async function initializeModel() {
|
202 |
+
setLoading(true, "Connecting to AI model (Q4)..."); // Indicate Q4 attempt
|
203 |
+
displayMessage('system', `[NOTICE] Attempting to load ${MODEL_NAME} with { dtype: "${QUANTIZATION}" }...`, false);
|
204 |
+
|
|
|
205 |
try {
|
206 |
+
// *** Re-adding dtype: QUANTIZATION based on model card example ***
|
207 |
generator = await pipeline(TASK, MODEL_NAME, {
|
208 |
+
dtype: QUANTIZATION,
|
209 |
progress_callback: (progress) => {
|
210 |
const msg = `[Loading: ${progress.status}] ${progress.file ? progress.file.split('/').pop() : ''} (${Math.round(progress.progress || 0)}%)`;
|
211 |
setLoading(true, msg);
|
212 |
},
|
213 |
});
|
214 |
+
displayMessage('system', "[NOTICE] AI Model ready! How can I assist you?", false);
|
215 |
|
216 |
} catch (error) {
|
217 |
console.error("Model loading failed:", error);
|
218 |
+
// Display a more prominent error message in the chat
|
219 |
+
displayMessage('system', `[ERROR] Failed to load AI model (${MODEL_NAME} with ${QUANTIZATION}).`, true, true); // Use isError flag
|
220 |
+
displayMessage('system', `Error details: ${error.message}. This model might be incompatible. Please try refreshing or consider using a different model like 'Xenova/gemma-2b-it'.`, true, true);
|
221 |
setLoading(false);
|
222 |
loadingIndicator.textContent = 'Model Load Failed';
|
223 |
return;
|
|
|
232 |
}
|
233 |
|
234 |
// Build prompt for English conversation
|
235 |
+
function buildPrompt() { /* No changes needed */
|
236 |
+
const historyLimit = 6; const recentHistory = conversationHistory.slice(-historyLimit);
|
237 |
+
let prompt = "<start_of_turn>system\nYou are 'AI Assistant', a helpful AI assistant. Answer the user's questions clearly and concisely in English.\n<end_of_turn>\n";
|
238 |
+
recentHistory.forEach(msg => { const role = msg.sender === 'user' ? 'user' : 'model'; prompt += `<start_of_turn>${role}\n${msg.text}\n<end_of_turn>\n`; });
|
239 |
+
prompt += "<start_of_turn>model\n";
|
240 |
+
console.log("Generated English Prompt:", prompt); return prompt;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
241 |
}
|
242 |
|
243 |
+
// Cleanup response
|
244 |
+
function cleanupResponse(responseText, prompt) { /* No changes needed */
|
245 |
+
let cleaned = responseText; if (cleaned.startsWith(prompt)) { cleaned = cleaned.substring(prompt.length); } else { cleaned = cleaned.replace(/^model\n?/, '').trim(); }
|
246 |
+
cleaned = cleaned.replace(/<end_of_turn>/g, '').trim(); cleaned = cleaned.replace(/<start_of_turn>/g, '').trim(); cleaned = cleaned.replace(/^['"]/, '').replace(/['"]$/, '');
|
247 |
+
if (!cleaned || cleaned.length < 2) { console.warn("Generated reply seems empty:", cleaned); const fallbacks = [ "Sorry, I didn't quite understand. Could you please rephrase?", "Hmm, I'm not sure how to respond to that. Can you try asking differently?", "Is there something else I can help you with?" ]; return fallbacks[Math.floor(Math.random() * fallbacks.length)]; }
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
248 |
return cleaned;
|
249 |
}
|
250 |
|
251 |
// --- Main Interaction Logic ---
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+
async function handleUserMessage() { /* No changes needed */
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253 |
+
const userText = userInput.value.trim(); if (!userText || !generator || loadingIndicator.style.display === 'flex') return;
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254 |
+
userInput.value = ''; userInput.style.height = 'auto'; sendButton.disabled = true;
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+
displayMessage('user', userText); conversationHistory.push({ sender: 'user', text: userText });
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256 |
+
setLoading(true); const prompt = buildPrompt();
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try {
|
258 |
+
const outputs = await generator(prompt, { max_new_tokens: 300, temperature: 0.7, repetition_penalty: 1.1, top_k: 50, top_p: 0.9, do_sample: true });
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const rawResponse = Array.isArray(outputs) ? outputs[0].generated_text : outputs.generated_text;
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const replyText = cleanupResponse(rawResponse, prompt);
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261 |
console.log("Cleaned English Output:", replyText);
|
262 |
+
displayMessage('bot', replyText); conversationHistory.push({ sender: 'bot', text: replyText });
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263 |
+
if (botState.botSettings.useSpeechOutput && synthesis && targetVoice) { speakText(replyText); }
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|
264 |
saveState();
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|
265 |
} catch (error) {
|
266 |
+
console.error("AI response generation error:", error); displayMessage('system', `[ERROR] Failed to generate response: ${error.message}`, true, true); // Show error in chat
|
267 |
+
const errorReply = "Sorry, I encountered an error generating the response."; displayMessage('bot', errorReply); conversationHistory.push({ sender: 'bot', text: errorReply });
|
268 |
+
} finally { setLoading(false); userInput.focus(); }
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|
269 |
}
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270 |
|
271 |
// --- Speech API Functions (English) ---
|
272 |
+
function initializeSpeechAPI() { /* No changes needed */
|
273 |
const SpeechRecognition = window.SpeechRecognition || window.webkitSpeechRecognition;
|
274 |
+
if (SpeechRecognition) { recognition = new SpeechRecognition(); recognition.lang = 'en-US'; recognition.continuous = false; recognition.interimResults = false; recognition.onstart = () => { isListening = true; speechButton.disabled = true; speechButton.textContent = '👂'; showSpeechStatus('Listening...'); }; recognition.onresult = (event) => { userInput.value = event.results[0][0].transcript; userInput.dispatchEvent(new Event('input')); handleUserMessage(); }; recognition.onerror = (event) => { console.error("Speech error:", event.error); showSpeechStatus(`Speech recognition error (${event.error})`); setTimeout(() => showSpeechStatus(''), 3000); }; recognition.onend = () => { isListening = false; speechButton.disabled = !generator; speechButton.textContent = '🎤'; if (speechStatus.textContent === 'Listening...') showSpeechStatus(''); }; speechButton.disabled = false; } else { console.warn("Speech Recognition not supported."); speechButton.style.display = 'none'; }
|
275 |
+
if (!synthesis) { console.warn("Speech Synthesis not supported."); toggleSpeakerButton.style.display = 'none'; } else { toggleSpeakerButton.addEventListener('click', () => { botState.botSettings.useSpeechOutput = !botState.botSettings.useSpeechOutput; updateSpeakerButtonUI(); saveState(); if (!botState.botSettings.useSpeechOutput) synthesis.cancel(); }); toggleSpeakerButton.disabled = false; }
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|
276 |
}
|
277 |
+
function loadVoices() { /* No changes needed */
|
278 |
+
if (!synthesis) return; let voices = synthesis.getVoices(); if (voices.length === 0) { synthesis.onvoiceschanged = () => { voices = synthesis.getVoices(); findAndSetVoice(voices); }; } else { findAndSetVoice(voices); }
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|
279 |
}
|
280 |
+
function findAndSetVoice(voices) { /* No changes needed */
|
281 |
+
targetVoice = voices.find(v => v.lang === 'en-US') || voices.find(v => v.lang.startsWith('en-'));
|
282 |
+
if (targetVoice) { console.log("Using English voice:", targetVoice.name, targetVoice.lang); } else { console.warn("No suitable English voice found."); displayMessage('system', "[NOTICE] No English voice found.", false); }
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|
283 |
}
|
284 |
+
function speakText(text) { /* No changes needed */
|
285 |
+
if (!synthesis || !botState.botSettings.useSpeechOutput) return; synthesis.cancel(); const utterance = new SpeechSynthesisUtterance(text); if (targetVoice) { utterance.voice = targetVoice; utterance.lang = targetVoice.lang; } else { utterance.lang = 'en-US'; } utterance.rate = 1.0; utterance.pitch = 1.0; synthesis.speak(utterance);
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|
286 |
}
|
287 |
|
288 |
// --- Event Listeners ---
|
289 |
sendButton.addEventListener('click', handleUserMessage);
|
290 |
+
userInput.addEventListener('keypress', (e) => { if (e.key === 'Enter' && !e.shiftKey) { e.preventDefault(); handleUserMessage(); } });
|
291 |
+
speechButton.addEventListener('click', () => { if (recognition && !isListening && generator) { try { recognition.start(); } catch (error) { console.error("Rec start fail:", error); showSpeechStatus(`Failed to start recognition`); setTimeout(() => showSpeechStatus(''), 2000); isListening = false; speechButton.disabled = !generator; speechButton.textContent = '🎤';} } });
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|
292 |
|
293 |
</script>
|
294 |
</body>
|