Add MiniMax Voice Widget V2 - disabled by default for testing
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"use client";
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import { useState, useRef, useEffect, useCallback } from "react";
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interface MiniMaxVoiceWidgetProps {
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businessName?: string;
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businessType?: "restaurant" | "real-estate" | "clinic" | "car-rental" | "default";
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theme?: "dark" | "light";
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apiUrl?: string;
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enabled?: boolean; // Toggle on/off for testing
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}
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type Lang = "es" | "en";
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// Exact greeting as per spec
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const SPANISH_GREETING = "Hola, soy el asistente de SiteMente. ¿En qué puedo ayudarte hoy?";
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const ENGLISH_GREETING = "I can also speak English. How can I help you today?";
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const SPANISH_MISUNDERSTAND = "No he entendido del todo, ¿podrías repetirlo o escribirlo, por favor?";
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const ENGLISH_MISUNDERSTAND = "I didn't quite catch that. Could you repeat or type it, please?";
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export default function MiniMaxVoiceWidget({
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businessName = "SiteMente",
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businessType = "restaurant",
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theme = "dark",
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apiUrl = "/api/ai/voice-chat-v2",
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enabled = true
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}: MiniMaxVoiceWidgetProps) {
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const [isListening, setIsListening] = useState(false);
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const [isSpeaking, setIsSpeaking] = useState(false);
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const [messages, setMessages] = useState<{role: "user" | "assistant", content: string}[]>([]);
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const [language, setLanguage] = useState<Lang>("es");
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const [showChat, setShowChat] = useState(false);
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const [error, setError] = useState<string | null>(null);
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const [isInitialized, setIsInitialized] = useState(false);
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const recognitionRef = useRef<SpeechRecognition | null>(null);
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const synthRef = useRef<SpeechSynthesis | null>(null);
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const messagesEndRef = useRef<HTMLDivElement>(null);
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const inputRef = useRef<HTMLInputElement>(null);
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// Initialize speech APIs
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useEffect(() => {
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if (typeof window === "undefined" || !enabled) return;
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// Speech Recognition
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const SpeechRecognition = window.SpeechRecognition || window.webkitSpeechRecognition;
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if (SpeechRecognition) {
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recognitionRef.current = new SpeechRecognition();
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recognitionRef.current.continuous = false;
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recognitionRef.current.interimResults = true;
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recognitionRef.current.lang = "es-ES";
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recognitionRef.current.onresult = (event) => {
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const transcript = Array.from(event.results)
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.map(result => result[0].transcript)
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.join("");
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if (event.results[0].isFinal && transcript.trim()) {
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handleUserInput(transcript);
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}
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};
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recognitionRef.current.onerror = (event) => {
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console.error("Speech error:", event.error);
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setIsListening(false);
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if (event.error === "not-allowed") {
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setError("Microphone access denied. Please allow microphone access.");
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} else if (event.error !== "no-speech") {
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setError(`Speech error: ${event.error}`);
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}
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};
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recognitionRef.current.onend = () => setIsListening(false);
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}
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// Speech Synthesis
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synthRef.current = window.speechSynthesis;
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return () => {
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recognitionRef.current?.stop();
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synthRef.current?.cancel();
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};
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}, [enabled]);
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// Initialize with greeting
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useEffect(() => {
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if (enabled && !isInitialized) {
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setIsInitialized(true);
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setMessages([{ role: "assistant", content: SPANISH_GREETING }]);
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speak(SPANISH_GREETING);
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}
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}, [enabled]);
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// Scroll to bottom
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useEffect(() => {
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messagesEndRef.current?.scrollIntoView({ behavior: "smooth" });
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}, [messages]);
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// Focus input when chat opens
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useEffect(() => {
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if (showChat && inputRef.current) {
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inputRef.current.focus();
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}
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}, [showChat]);
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// Speak function with exact greeting behavior
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const speak = useCallback((text: string) => {
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if (!synthRef.current || !enabled) return;
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synthRef.current.cancel();
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const utterance = new SpeechSynthesisUtterance(text);
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utterance.lang = language === "es" ? "es-ES" : "en-US";
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utterance.rate = 0.9;
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utterance.pitch = 1;
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utterance.volume = 1;
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utterance.onstart = () => setIsSpeaking(true);
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utterance.onend = () => setIsSpeaking(false);
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utterance.onerror = () => setIsSpeaking(false);
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synthRef.current.speak(utterance);
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}, [language, enabled]);
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// Handle user input
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const handleUserInput = async (text: string) => {
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if (!text.trim() || !enabled) return;
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const userText = text.trim();
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setMessages(prev => [...prev, { role: "user", content: userText }]);
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setIsSpeaking(true);
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// Detect language
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const spanishWords = ["hola", "gracias", "por favor", "quiero", "necesito", "reserva", "precio", "dónde", "cuándo", "cómo", "cuánto", "tengo", "quiero", "busco", "necesito"];
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const englishWords = ["hello", "thanks", "please", "want", "need", "book", "price", "where", "how", "much", "have", "looking"];
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const isSpanish = spanishWords.some(w => userText.toLowerCase().includes(w));
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const isEnglish = englishWords.some(w => userText.toLowerCase().includes(w));
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let detectedLang: Lang = language;
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if (isSpanish && !isEnglish) detectedLang = "es";
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else if (isEnglish && !isSpanish) detectedLang = "en";
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else if (isSpanish && isEnglish && language === "es") detectedLang = "es";
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if (detectedLang !== language) {
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setLanguage(detectedLang);
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}
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try {
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const response = await fetch(apiUrl, {
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method: "POST",
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headers: { "Content-Type": "application/json" },
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body: JSON.stringify({
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message: userText,
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language: detectedLang,
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businessType,
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businessName,
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history: messages.slice(-4)
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})
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});
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if (!response.ok) throw new Error("API failed");
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const data = await response.json();
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const aiResponse = data.response;
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setMessages(prev => [...prev, { role: "assistant", content: aiResponse }]);
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speak(aiResponse);
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} catch (err) {
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console.error("API error:", err);
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const fallback = language === "es" ? SPANISH_MISUNDERSTAND : ENGLISH_MISUNDERSTAND;
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setMessages(prev => [...prev, { role: "assistant", content: fallback }]);
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speak(fallback);
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}
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};
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// Toggle microphone
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const toggleListening = () => {
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if (!recognitionRef.current) {
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setError("Speech recognition not supported. Try Chrome.");
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return;
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}
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if (isListening) {
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recognitionRef.current.stop();
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} else {
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setError(null);
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recognitionRef.current.lang = language === "es" ? "es-ES" : "en-US";
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recognitionRef.current.start();
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setIsListening(true);
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}
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};
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// Handle text input
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const handleTextSubmit = (e: React.FormEvent) => {
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e.preventDefault();
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const text = inputRef.current?.value;
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if (text?.trim()) {
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handleUserInput(text.trim());
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if (inputRef.current) inputRef.current.value = "";
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}
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};
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// Theme
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const buttonColor = theme === "dark" ? "bg-brand-pink" : "bg-blue-600";
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const bgColor = theme === "dark" ? "bg-[#1a1625]" : "bg-white";
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const textColor = theme === "dark" ? "text-white" : "text-gray-900";
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const inputBg = theme === "dark" ? "bg-white/10" : "bg-gray-100";
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if (!enabled) return null;
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return (
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<div className="fixed bottom-6 right-6 z-50">
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{/* Main Button */}
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<button
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onClick={() => setShowChat(!showChat)}
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className={`${buttonColor} w-14 h-14 rounded-full shadow-lg flex items-center justify-center transition-all hover:scale-110 ${isListening ? "animate-pulse" : ""}`}
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title={showChat ? "Close" : "AI Assistant"}
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>
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{isSpeaking ? "🔊" : isListening ? "👂" : "🎙️"}
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</button>
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{/* Chat Panel */}
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{showChat && (
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<div className={`absolute bottom-20 right-0 w-80 ${bgColor} rounded-2xl shadow-2xl border border-white/10 overflow-hidden`}>
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{/* Header */}
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<div className={`${theme === "dark" ? "bg-brand-purple" : "bg-blue-600"} p-3 flex items-center justify-between`}>
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<div className="flex items-center gap-2">
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<span className="text-xl">🤖</span>
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<span className="font-semibold text-white text-sm">Asistente SiteMente</span>
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</div>
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<span className="text-xs text-white/70">
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{language === "es" ? "ES" : "EN"}
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</span>
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</div>
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{/* Messages */}
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<div className={`h-56 overflow-y-auto p-3 space-y-2 ${textColor}`}>
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{messages.map((msg, i) => (
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<div key={i} className={`flex ${msg.role === "user" ? "justify-end" : "justify-start"}`}>
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<div className={`max-w-[85%] px-3 py-2 rounded-lg text-sm ${
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msg.role === "user"
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? `${buttonColor} text-white`
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: theme === "dark" ? "bg-white/10 text-white" : "bg-gray-100 text-gray-900"
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}`}>
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{msg.content}
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</div>
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</div>
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))}
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{isListening && (
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<div className="flex justify-start">
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<div className="bg-white/10 px-3 py-2 rounded-lg text-sm text-white animate-pulse">
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🎤 Listening...
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</div>
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</div>
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)}
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<div ref={messagesEndRef} />
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</div>
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{/* Input */}
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<form onSubmit={handleTextSubmit} className={`p-3 border-t ${theme === "dark" ? "border-white/10" : "border-gray-200"}`}>
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<div className="flex gap-2">
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<input
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ref={inputRef}
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type="text"
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placeholder={language === "es" ? "Escribe aquí..." : "Type here..."}
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className={`flex-1 px-3 py-2 rounded-lg text-sm ${inputBg} ${textColor} placeholder-white/50 focus:outline-none focus:ring-2 ${buttonColor}`}
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disabled={isSpeaking}
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/>
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<button
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type="submit"
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disabled={isSpeaking}
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className={`${buttonColor} px-3 py-2 rounded-lg text-white disabled:opacity-50`}
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>
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➤
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</button>
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</div>
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</form>
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{/* Mic Button */}
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<div className={`p-3 pt-0`}>
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<button
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onClick={toggleListening}
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disabled={isSpeaking}
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className={`w-full py-2 rounded-lg font-semibold text-white transition ${
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isListening
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? "bg-red-500 animate-pulse"
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: `${buttonColor} hover:opacity-90`
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} disabled:opacity-50`}
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>
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{isListening ? "🛑 Detener" : "🎤 Hablar"}
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</button>
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</div>
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{/* Error */}
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{error && (
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<div className="px-3 pb-2 text-xs text-red-400">
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{error}
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</div>
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)}
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</div>
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)}
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</div>
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);
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}
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declare global {
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interface Window {
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SpeechRecognition: typeof SpeechRecognition;
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webkitSpeechRecognition: typeof SpeechRecognition;
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}
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}
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