forked from XiaoMo/ChatGPT-Next-Web
373 lines
10 KiB
TypeScript
373 lines
10 KiB
TypeScript
"use client";
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import { useState, useRef, useEffect } from "react";
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import ReactMarkdown from "react-markdown";
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import "katex/dist/katex.min.css";
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import RemarkMath from "remark-math";
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import RehypeKatex from "rehype-katex";
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import { Emoji } from "emoji-picker-react";
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import { IconButton } from "./button";
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import styles from "./home.module.scss";
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import SettingsIcon from "../icons/settings.svg";
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import GithubIcon from "../icons/github.svg";
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import ChatGptIcon from "../icons/chatgpt.svg";
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import SendWhiteIcon from "../icons/send-white.svg";
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import BrainIcon from "../icons/brain.svg";
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import ExportIcon from "../icons/export.svg";
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import BotIcon from "../icons/bot.svg";
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import AddIcon from "../icons/add.svg";
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import DeleteIcon from "../icons/delete.svg";
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import LoadingIcon from "../icons/three-dots.svg";
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import { Message, SubmitKey, useChatStore, Theme } from "../store";
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import { Settings } from "./settings";
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import dynamic from "next/dynamic";
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export const LazySettings = dynamic(
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async () => await (await import("./settings")).Settings,
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{
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loading: () => (
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<div className="">
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<LoadingIcon />
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</div>
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),
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}
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);
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export function Markdown(props: { content: string }) {
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return (
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<ReactMarkdown remarkPlugins={[RemarkMath]} rehypePlugins={[RehypeKatex]}>
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{props.content}
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</ReactMarkdown>
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);
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}
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export function Avatar(props: { role: Message["role"] }) {
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const config = useChatStore((state) => state.config);
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if (props.role === "assistant") {
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return <BotIcon className={styles["user-avtar"]} />;
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}
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return (
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<div className={styles["user-avtar"]}>
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<Emoji unified={config.avatar} size={18} />
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</div>
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);
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}
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export function ChatItem(props: {
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onClick?: () => void;
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onDelete?: () => void;
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title: string;
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count: number;
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time: string;
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selected: boolean;
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}) {
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return (
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<div
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className={`${styles["chat-item"]} ${
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props.selected && styles["chat-item-selected"]
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}`}
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onClick={props.onClick}
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>
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<div className={styles["chat-item-title"]}>{props.title}</div>
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<div className={styles["chat-item-info"]}>
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<div className={styles["chat-item-count"]}>{props.count} 条对话</div>
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<div className={styles["chat-item-date"]}>{props.time}</div>
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</div>
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<div className={styles["chat-item-delete"]} onClick={props.onDelete}>
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<DeleteIcon />
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</div>
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</div>
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);
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}
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export function ChatList() {
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const [sessions, selectedIndex, selectSession, removeSession] = useChatStore(
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(state) => [
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state.sessions,
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state.currentSessionIndex,
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state.selectSession,
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state.removeSession,
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]
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);
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return (
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<div className={styles["chat-list"]}>
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{sessions.map((item, i) => (
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<ChatItem
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title={item.topic}
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time={item.lastUpdate}
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count={item.messages.length}
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key={i}
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selected={i === selectedIndex}
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onClick={() => selectSession(i)}
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onDelete={() => removeSession(i)}
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/>
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))}
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</div>
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);
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}
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function useSubmitHandler() {
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const config = useChatStore((state) => state.config);
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const submitKey = config.submitKey;
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const shouldSubmit = (e: KeyboardEvent) => {
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if (e.key !== "Enter") return false;
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return (
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(config.submitKey === SubmitKey.AltEnter && e.altKey) ||
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(config.submitKey === SubmitKey.CtrlEnter && e.ctrlKey) ||
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(config.submitKey === SubmitKey.ShiftEnter && e.shiftKey) ||
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config.submitKey === SubmitKey.Enter
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);
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};
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return {
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submitKey,
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shouldSubmit,
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};
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}
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export function Chat() {
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type RenderMessage = Message & { preview?: boolean };
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const session = useChatStore((state) => state.currentSession());
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const [userInput, setUserInput] = useState("");
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const [isLoading, setIsLoading] = useState(false);
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const { submitKey, shouldSubmit } = useSubmitHandler();
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const onUserInput = useChatStore((state) => state.onUserInput);
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const onUserSubmit = () => {
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if (userInput.length <= 0) return;
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setIsLoading(true);
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onUserInput(userInput).then(() => setIsLoading(false));
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setUserInput("");
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};
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const onInputKeyDown = (e: KeyboardEvent) => {
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if (shouldSubmit(e)) {
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onUserSubmit();
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e.preventDefault();
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}
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};
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const latestMessageRef = useRef<HTMLDivElement>(null);
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const messages = (session.messages as RenderMessage[])
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.concat(
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isLoading
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? [
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{
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role: "assistant",
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content: "……",
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date: new Date().toLocaleString(),
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preview: true,
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},
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]
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: []
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)
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.concat(
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userInput.length > 0
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? [
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{
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role: "user",
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content: userInput,
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date: new Date().toLocaleString(),
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preview: true,
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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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latestMessageRef.current?.scrollIntoView({
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behavior: "smooth",
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block: "end",
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});
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});
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return (
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<div className={styles.chat} key={session.id}>
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<div className={styles["window-header"]}>
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<div>
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<div className={styles["window-header-title"]}>{session.topic}</div>
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<div className={styles["window-header-sub-title"]}>
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与 ChatGPT 的 {session.messages.length} 条对话
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</div>
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</div>
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<div className={styles["window-actions"]}>
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<div className={styles["window-action-button"]}>
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<IconButton
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icon={<BrainIcon />}
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bordered
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title="查看压缩后的历史 Prompt（开发中）"
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/>
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</div>
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<div className={styles["window-action-button"]}>
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<IconButton
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icon={<ExportIcon />}
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bordered
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title="导出聊天记录为 Markdown（开发中）"
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/>
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</div>
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</div>
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</div>
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<div className={styles["chat-body"]}>
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{messages.map((message, i) => {
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const isUser = message.role === "user";
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return (
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<div
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key={i}
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className={
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isUser ? styles["chat-message-user"] : styles["chat-message"]
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}
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>
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<div className={styles["chat-message-container"]}>
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<div className={styles["chat-message-avatar"]}>
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<Avatar role={message.role} />
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</div>
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{(message.preview || message.streaming) && (
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<div className={styles["chat-message-status"]}>正在输入…</div>
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)}
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<div className={styles["chat-message-item"]}>
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{(message.preview || message.content.length === 0) &&
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!isUser ? (
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<LoadingIcon />
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) : (
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<div className="markdown-body">
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<Markdown content={message.content} />
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</div>
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)}
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</div>
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{!isUser && !message.preview && (
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<div className={styles["chat-message-actions"]}>
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<div className={styles["chat-message-action-date"]}>
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{message.date.toLocaleString()}
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</div>
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</div>
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)}
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</div>
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</div>
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);
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})}
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<span ref={latestMessageRef} style={{ opacity: 0 }}>
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-
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</span>
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</div>
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<div className={styles["chat-input-panel"]}>
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<div className={styles["chat-input-panel-inner"]}>
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<textarea
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className={styles["chat-input"]}
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placeholder={`输入消息，${submitKey} 发送`}
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rows={3}
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onInput={(e) => setUserInput(e.currentTarget.value)}
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value={userInput}
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onKeyDown={(e) => onInputKeyDown(e as any)}
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/>
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<IconButton
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icon={<SendWhiteIcon />}
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text={"发送"}
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className={styles["chat-input-send"] + " no-dark"}
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onClick={onUserSubmit}
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/>
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</div>
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</div>
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</div>
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);
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}
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function useSwitchTheme() {
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const config = useChatStore((state) => state.config);
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useEffect(() => {
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document.body.classList.remove("light");
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document.body.classList.remove("dark");
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if (config.theme === "dark") {
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document.body.classList.add("dark");
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} else if (config.theme === "light") {
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document.body.classList.add("light");
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}
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}, [config.theme]);
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}
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export function Home() {
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const [createNewSession] = useChatStore((state) => [state.newSession]);
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const loading = !useChatStore?.persist?.hasHydrated();
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// settings
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const [openSettings, setOpenSettings] = useState(false);
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const config = useChatStore((state) => state.config);
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useSwitchTheme();
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if (loading) {
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return (
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<div>
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<Avatar role="assistant"></Avatar>
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<LoadingIcon />
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</div>
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);
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}
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return (
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<div
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className={`${
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config.tightBorder ? styles["tight-container"] : styles.container
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}`}
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>
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<div className={styles.sidebar}>
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<div className={styles["sidebar-header"]}>
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<div className={styles["sidebar-title"]}>ChatGPT Next</div>
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<div className={styles["sidebar-sub-title"]}>
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Build your own AI assistant.
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</div>
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<div className={styles["sidebar-logo"]}>
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<ChatGptIcon />
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</div>
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</div>
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<div
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className={styles["sidebar-body"]}
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onClick={() => setOpenSettings(false)}
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>
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<ChatList />
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</div>
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<div className={styles["sidebar-tail"]}>
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<div className={styles["sidebar-actions"]}>
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<div className={styles["sidebar-action"]}>
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<IconButton
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icon={<SettingsIcon />}
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onClick={() => setOpenSettings(!openSettings)}
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/>
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</div>
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<div className={styles["sidebar-action"]}>
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<a href="https://github.com/Yidadaa" target="_blank">
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<IconButton icon={<GithubIcon />} />
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</a>
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</div>
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</div>
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<div>
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<IconButton
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icon={<AddIcon />}
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text={"新的聊天"}
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onClick={createNewSession}
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/>
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</div>
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</div>
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</div>
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<div className={styles["window-content"]}>
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{openSettings ? <LazySettings /> : <Chat key="chat" />}
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</div>
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</div>
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);
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}
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