128 lines
3.1 KiB
TypeScript
128 lines
3.1 KiB
TypeScript
import { Chat } from "@/components/Chat/Chat";
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import { Footer } from "@/components/Layout/Footer";
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import { Navbar } from "@/components/Layout/Navbar";
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import { Message } from "@/types";
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import Head from "next/head";
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import { useEffect, useRef, useState } from "react";
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export default function Home() {
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const [messages, setMessages] = useState<Message[]>([]);
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const [loading, setLoading] = useState<boolean>(false);
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const messagesEndRef = useRef<HTMLDivElement>(null);
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const scrollToBottom = () => {
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messagesEndRef.current?.scrollIntoView({ behavior: "smooth" });
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};
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const handleSend = async (message: Message) => {
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const updatedMessages = [...messages, message];
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setMessages(updatedMessages);
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setLoading(true);
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const response = await fetch("/api/chat", {
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method: "POST",
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headers: {
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"Content-Type": "application/json"
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},
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body: JSON.stringify({
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messages: updatedMessages
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})
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});
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if (!response.ok) {
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setLoading(false);
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throw new Error(response.statusText);
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}
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const data = response.body;
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if (!data) {
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return;
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}
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setLoading(false);
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const reader = data.getReader();
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const decoder = new TextDecoder();
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let done = false;
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let isFirst = true;
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while (!done) {
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const { value, done: doneReading } = await reader.read();
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done = doneReading;
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const chunkValue = decoder.decode(value);
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if (isFirst) {
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isFirst = false;
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setMessages((messages) => [
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...messages,
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{
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role: "assistant",
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content: chunkValue
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}
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]);
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} else {
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setMessages((messages) => {
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const lastMessage = messages[messages.length - 1];
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const updatedMessage = {
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...lastMessage,
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content: lastMessage.content + chunkValue
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};
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return [...messages.slice(0, -1), updatedMessage];
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});
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}
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}
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};
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useEffect(() => {
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scrollToBottom();
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}, [messages]);
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useEffect(() => {
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setMessages([
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{
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role: "assistant",
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content: `Hi there! I'm Chatbot UI, an AI assistant. I can help you with things like answering questions, providing information, and helping with tasks. How can I help you?`
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}
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]);
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}, []);
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return (
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<>
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<Head>
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<title>Chatbot UI</title>
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<meta
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name="description"
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content="A simple chatbot starter kit for OpenAI's chat model using Next.js, TypeScript, and Tailwind CSS."
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/>
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<meta
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name="viewport"
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content="width=device-width, initial-scale=1"
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/>
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<link
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rel="icon"
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href="/favicon.ico"
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/>
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</Head>
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<div className="flex flex-col h-screen">
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<Navbar />
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<div className="flex-1 overflow-auto sm:px-10 pb-4 sm:pb-10">
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<div className="max-w-[800px] mx-auto mt-4 sm:mt-12">
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<Chat
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messages={messages}
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loading={loading}
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onSend={handleSend}
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/>
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<div ref={messagesEndRef} />
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</div>
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</div>
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<Footer />
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</div>
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</>
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);
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}
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