root
278 lines
9.6 KiB
TypeScript
278 lines
9.6 KiB
TypeScript
"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; // Your VPS API endpoint for MiniMax
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}
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// Language state
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type Lang = "es" | "en";
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const SPANISH_GREETING = "¡Hola! Soy el asistente de inteligencia artificial. ¿En qué puedo ayudarte hoy?";
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const ENGLISH_GREETING = "Hello! I'm the AI assistant. How can I help you today?";
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// MiniMax system prompt
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const SYSTEM_PROMPT = `You are a friendly AI assistant for a business website.
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You help customers with questions about services, hours, bookings, and general inquiries.
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Keep responses brief and helpful (2-3 sentences max).
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Default language is Spanish. After the first greeting, respond in the language the user uses.
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Business type: {businessType}. Business name: {businessName}.`;
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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"
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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 [isInitialized, setIsInitialized] = useState(false);
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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 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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// Initialize speech recognition and synthesis
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useEffect(() => {
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if (typeof window === "undefined") return;
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// Speech Recognition (Web Speech API)
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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 = language === "es" ? "es-ES" : "en-US";
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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) {
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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 recognition error:", event.error);
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setIsListening(false);
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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 = () => {
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setIsListening(false);
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};
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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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}, [language]);
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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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// Initialize with greeting
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useEffect(() => {
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if (!isInitialized) {
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setIsInitialized(true);
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const greeting = language === "es" ? SPANISH_GREETING : ENGLISH_GREETING;
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setMessages([{ role: "assistant", content: greeting }]);
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speak(greeting);
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}
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}, []);
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// Speak text using browser TTS
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const speak = useCallback((text: string) => {
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if (!synthRef.current) 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.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]);
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// Handle user input
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const handleUserInput = async (text: string) => {
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if (!text.trim()) return;
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// Add user message
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setMessages(prev => [...prev, { role: "user", content: text }]);
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// Detect language from first message
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const spanishWords = ["hola", "gracias", "por favor", "quiero", "necesito", "reserva", "precio", "dónde", "cuándo"];
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const isSpanish = spanishWords.some(word => text.toLowerCase().includes(word));
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if (isSpanish && language === "en") {
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setLanguage("es");
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} else if (!isSpanish && language === "es" && text.length > 5) {
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setLanguage("en");
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}
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setIsSpeaking(true);
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try {
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// Call MiniMax API
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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: text,
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language,
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businessType,
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businessName,
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history: messages.slice(-5) // Last 5 messages for context
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})
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});
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if (!response.ok) throw new Error("API request failed");
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const data = await response.json();
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const aiResponse = data.response || data.message || "Lo siento, no entendí. ¿Puedes repetir?";
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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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// Fallback response
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const fallbackResponse = language === "es"
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? "Lo siento, tuve un problema. ¿Puedes repetir?"
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: "Sorry, I had an issue. Can you repeat that?";
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setMessages(prev => [...prev, { role: "assistant", content: fallbackResponse }]);
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speak(fallbackResponse);
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}
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};
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// Toggle listening
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const toggleListening = () => {
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if (!recognitionRef.current) {
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setError("Speech recognition not supported in this browser");
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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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// Theme colors
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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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return (
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<div className="fixed bottom-6 right-6 z-50">
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{/* Chat Toggle */}
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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={isListening ? "Listening..." : "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 ${theme === "dark" ? "text-white" : "text-white"}`}>
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{businessName} AI
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</span>
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</div>
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<button
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onClick={() => setLanguage(lang => lang === "es" ? "en" : "es")}
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className="text-xs bg-white/20 px-2 py-1 rounded text-white"
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>
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{language === "es" ? "🇪🇸 ES" : "🇬🇧 EN"}
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</button>
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</div>
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{/* Messages */}
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<div className={`h-64 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-[80%] 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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{/* Controls */}
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<div className={`p-3 border-t ${theme === "dark" ? "border-white/10" : "border-gray-200"} flex gap-2`}>
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<button
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onClick={toggleListening}
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disabled={isSpeaking}
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className={`flex-1 py-2 rounded-lg font-semibold text-white transition ${
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isListening ? "bg-red-500 animate-pulse" : buttonColor + " hover:opacity-90"
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} disabled:opacity-50`}
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>
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{isListening ? "🛑 Stop" : "🎤 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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// Type declarations for Web Speech API
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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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