forked from XiaoMo/ChatGPT-Next-Web
640 lines
19 KiB
TypeScript
640 lines
19 KiB
TypeScript
import { useDebouncedCallback } from "use-debounce";
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import { useState, useRef, useEffect, useLayoutEffect } from "react";
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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 MenuIcon from "../icons/menu.svg";
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import CopyIcon from "../icons/copy.svg";
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import DownloadIcon from "../icons/download.svg";
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import LoadingIcon from "../icons/three-dots.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 {
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Message,
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SubmitKey,
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useChatStore,
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ChatSession,
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BOT_HELLO,
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ROLES,
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} from "../store";
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import {
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copyToClipboard,
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downloadAs,
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isMobileScreen,
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selectOrCopy,
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} from "../utils";
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import dynamic from "next/dynamic";
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import { ControllerPool } from "../requests";
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import { Prompt, usePromptStore } from "../store/prompt";
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import Locale from "../locales";
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import { IconButton } from "./button";
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import styles from "./home.module.scss";
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import chatStyle from "./chat.module.scss";
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import { Modal, showModal, showToast } from "./ui-lib";
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const Markdown = dynamic(async () => (await import("./markdown")).Markdown, {
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loading: () => <LoadingIcon />,
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});
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const Emoji = dynamic(async () => (await import("emoji-picker-react")).Emoji, {
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loading: () => <LoadingIcon />,
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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 !== "user") {
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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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function exportMessages(messages: Message[], topic: string) {
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const mdText =
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`# ${topic}\n\n` +
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messages
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.map((m) => {
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return m.role === "user" ? `## ${m.content}` : m.content.trim();
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})
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.join("\n\n");
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const filename = `${topic}.md`;
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showModal({
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title: Locale.Export.Title,
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children: (
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<div className="markdown-body">
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<pre className={styles["export-content"]}>{mdText}</pre>
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</div>
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),
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actions: [
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<IconButton
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key="copy"
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icon={<CopyIcon />}
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bordered
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text={Locale.Export.Copy}
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onClick={() => copyToClipboard(mdText)}
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/>,
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<IconButton
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key="download"
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icon={<DownloadIcon />}
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bordered
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text={Locale.Export.Download}
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onClick={() => downloadAs(mdText, filename)}
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/>,
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],
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});
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}
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function PromptToast(props: {
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showToast?: boolean;
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showModal?: boolean;
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setShowModal: (_: boolean) => void;
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}) {
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const chatStore = useChatStore();
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const session = chatStore.currentSession();
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const context = session.context;
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const addContextPrompt = (prompt: Message) => {
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chatStore.updateCurrentSession((session) => {
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session.context.push(prompt);
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});
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};
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const removeContextPrompt = (i: number) => {
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chatStore.updateCurrentSession((session) => {
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session.context.splice(i, 1);
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});
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};
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const updateContextPrompt = (i: number, prompt: Message) => {
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chatStore.updateCurrentSession((session) => {
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session.context[i] = prompt;
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});
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};
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return (
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<div className={chatStyle["prompt-toast"]} key="prompt-toast">
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{props.showToast && (
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<div
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className={chatStyle["prompt-toast-inner"] + " clickable"}
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role="button"
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onClick={() => props.setShowModal(true)}
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>
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<BrainIcon />
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<span className={chatStyle["prompt-toast-content"]}>
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{Locale.Context.Toast(context.length)}
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</span>
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</div>
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)}
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{props.showModal && (
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<div className="modal-mask">
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<Modal
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title={Locale.Context.Edit}
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onClose={() => props.setShowModal(false)}
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actions={[
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<IconButton
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key="copy"
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icon={<CopyIcon />}
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bordered
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text={Locale.Memory.Copy}
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onClick={() => copyToClipboard(session.memoryPrompt)}
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/>,
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]}
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>
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<>
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{" "}
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<div className={chatStyle["context-prompt"]}>
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{context.map((c, i) => (
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<div className={chatStyle["context-prompt-row"]} key={i}>
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<select
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value={c.role}
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className={chatStyle["context-role"]}
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onChange={(e) =>
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updateContextPrompt(i, {
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...c,
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role: e.target.value as any,
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})
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}
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>
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{ROLES.map((r) => (
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<option key={r} value={r}>
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{r}
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</option>
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))}
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</select>
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<input
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value={c.content}
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type="text"
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className={chatStyle["context-content"]}
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onChange={(e) =>
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updateContextPrompt(i, {
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...c,
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content: e.target.value as any,
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})
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}
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></input>
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<IconButton
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icon={<DeleteIcon />}
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className={chatStyle["context-delete-button"]}
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onClick={() => removeContextPrompt(i)}
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bordered
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/>
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</div>
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))}
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<div className={chatStyle["context-prompt-row"]}>
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<IconButton
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icon={<AddIcon />}
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text={Locale.Context.Add}
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bordered
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className={chatStyle["context-prompt-button"]}
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onClick={() =>
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addContextPrompt({
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role: "system",
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content: "",
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date: "",
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})
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}
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/>
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</div>
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</div>
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<div className={chatStyle["memory-prompt"]}>
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<div className={chatStyle["memory-prompt-title"]}>
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{Locale.Memory.Title} ({session.lastSummarizeIndex} of{" "}
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{session.messages.length})
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</div>
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<div className={chatStyle["memory-prompt-content"]}>
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{session.memoryPrompt || Locale.Memory.EmptyContent}
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</div>
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</div>
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</>
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</Modal>
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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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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: React.KeyboardEvent<HTMLTextAreaElement>) => {
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if (e.key !== "Enter") return false;
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if (e.key === "Enter" && e.nativeEvent.isComposing) 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.MetaEnter && e.metaKey) ||
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(config.submitKey === SubmitKey.Enter &&
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!e.altKey &&
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!e.ctrlKey &&
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!e.shiftKey &&
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!e.metaKey)
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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 PromptHints(props: {
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prompts: Prompt[];
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onPromptSelect: (prompt: Prompt) => void;
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}) {
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if (props.prompts.length === 0) return null;
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return (
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<div className={styles["prompt-hints"]}>
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{props.prompts.map((prompt, i) => (
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<div
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className={styles["prompt-hint"]}
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key={prompt.title + i.toString()}
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onClick={() => props.onPromptSelect(prompt)}
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>
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<div className={styles["hint-title"]}>{prompt.title}</div>
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<div className={styles["hint-content"]}>{prompt.content}</div>
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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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function useScrollToBottom() {
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// for auto-scroll
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const scrollRef = useRef<HTMLDivElement>(null);
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const [autoScroll, setAutoScroll] = useState(true);
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// auto scroll
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useLayoutEffect(() => {
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const dom = scrollRef.current;
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if (dom && autoScroll) {
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setTimeout(() => (dom.scrollTop = dom.scrollHeight), 1);
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}
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});
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return {
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scrollRef,
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autoScroll,
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setAutoScroll,
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};
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}
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export function Chat(props: {
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showSideBar?: () => void;
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sideBarShowing?: boolean;
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}) {
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type RenderMessage = Message & { preview?: boolean };
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const chatStore = useChatStore();
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const [session, sessionIndex] = useChatStore((state) => [
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state.currentSession(),
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state.currentSessionIndex,
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]);
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const fontSize = useChatStore((state) => state.config.fontSize);
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const inputRef = useRef<HTMLTextAreaElement>(null);
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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 { scrollRef, setAutoScroll } = useScrollToBottom();
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const [hitBottom, setHitBottom] = useState(false);
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const onChatBodyScroll = (e: HTMLElement) => {
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const isTouchBottom = e.scrollTop + e.clientHeight >= e.scrollHeight - 20;
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setHitBottom(isTouchBottom);
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};
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// prompt hints
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const promptStore = usePromptStore();
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const [promptHints, setPromptHints] = useState<Prompt[]>([]);
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const onSearch = useDebouncedCallback(
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(text: string) => {
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setPromptHints(promptStore.search(text));
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},
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100,
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{ leading: true, trailing: true },
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);
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const onPromptSelect = (prompt: Prompt) => {
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setUserInput(prompt.content);
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setPromptHints([]);
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inputRef.current?.focus();
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};
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const scrollInput = () => {
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const dom = inputRef.current;
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if (!dom) return;
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const paddingBottomNum: number = parseInt(
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window.getComputedStyle(dom).paddingBottom,
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10,
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);
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dom.scrollTop = dom.scrollHeight - dom.offsetHeight + paddingBottomNum;
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};
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// only search prompts when user input is short
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const SEARCH_TEXT_LIMIT = 30;
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const onInput = (text: string) => {
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scrollInput();
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setUserInput(text);
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const n = text.trim().length;
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// clear search results
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if (n === 0) {
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setPromptHints([]);
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} else if (!chatStore.config.disablePromptHint && n < SEARCH_TEXT_LIMIT) {
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// check if need to trigger auto completion
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if (text.startsWith("/")) {
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let searchText = text.slice(1);
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if (searchText.length === 0) {
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searchText = " ";
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}
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onSearch(searchText);
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}
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}
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};
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// submit user input
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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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chatStore.onUserInput(userInput).then(() => setIsLoading(false));
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setUserInput("");
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setPromptHints([]);
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inputRef.current?.focus();
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};
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// stop response
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const onUserStop = (messageIndex: number) => {
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ControllerPool.stop(sessionIndex, messageIndex);
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};
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// check if should send message
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const onInputKeyDown = (e: React.KeyboardEvent<HTMLTextAreaElement>) => {
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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 onRightClick = (e: any, message: Message) => {
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// auto fill user input
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if (message.role === "user") {
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setUserInput(message.content);
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}
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// copy to clipboard
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if (selectOrCopy(e.currentTarget, message.content)) {
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e.preventDefault();
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}
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};
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const onResend = (botIndex: number) => {
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// find last user input message and resend
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for (let i = botIndex; i >= 0; i -= 1) {
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if (messages[i].role === "user") {
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setIsLoading(true);
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chatStore
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.onUserInput(messages[i].content)
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.then(() => setIsLoading(false));
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inputRef.current?.focus();
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return;
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}
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}
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};
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const config = useChatStore((state) => state.config);
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const context: RenderMessage[] = session.context.slice();
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if (
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context.length === 0 &&
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session.messages.at(0)?.content !== BOT_HELLO.content
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) {
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context.push(BOT_HELLO);
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}
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// preview messages
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const messages = context
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.concat(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 && config.sendPreviewBubble
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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: false,
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},
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]
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: [],
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);
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const [showPromptModal, setShowPromptModal] = useState(false);
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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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className={styles["window-header-title"]}
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onClick={props?.showSideBar}
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>
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<div
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className={`${styles["window-header-main-title"]} ${styles["chat-body-title"]}`}
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onClick={() => {
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const newTopic = prompt(Locale.Chat.Rename, session.topic);
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if (newTopic && newTopic !== session.topic) {
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chatStore.updateCurrentSession(
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(session) => (session.topic = newTopic!),
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);
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}
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}}
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>
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{session.topic}
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</div>
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<div className={styles["window-header-sub-title"]}>
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{Locale.Chat.SubTitle(session.messages.length)}
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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"] + " " + styles.mobile}>
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<IconButton
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icon={<MenuIcon />}
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bordered
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title={Locale.Chat.Actions.ChatList}
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onClick={props?.showSideBar}
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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={<BrainIcon />}
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bordered
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title={Locale.Chat.Actions.CompressedHistory}
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onClick={() => {
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setShowPromptModal(true);
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}}
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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={Locale.Chat.Actions.Export}
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onClick={() => {
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exportMessages(session.messages, session.topic);
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}}
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/>
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</div>
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</div>
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<PromptToast
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showToast={!hitBottom}
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showModal={showPromptModal}
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setShowModal={setShowPromptModal}
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/>
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</div>
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<div
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className={styles["chat-body"]}
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ref={scrollRef}
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onScroll={(e) => onChatBodyScroll(e.currentTarget)}
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>
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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"]}>
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{Locale.Chat.Typing}
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</div>
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)}
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<div
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className={styles["chat-message-item"]}
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onMouseOver={() => inputRef.current?.blur()}
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onTouchStart={() => inputRef.current?.blur()}
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>
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{!isUser &&
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!(message.preview || message.content.length === 0) && (
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<div className={styles["chat-message-top-actions"]}>
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{message.streaming ? (
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<div
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className={styles["chat-message-top-action"]}
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onClick={() => onUserStop(i)}
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>
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{Locale.Chat.Actions.Stop}
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</div>
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) : (
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<div
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className={styles["chat-message-top-action"]}
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onClick={() => onResend(i)}
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>
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{Locale.Chat.Actions.Retry}
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</div>
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)}
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<div
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className={styles["chat-message-top-action"]}
|
|
onClick={() => copyToClipboard(message.content)}
|
|
>
|
|
{Locale.Chat.Actions.Copy}
|
|
</div>
|
|
</div>
|
|
)}
|
|
{(message.preview || message.content.length === 0) &&
|
|
!isUser ? (
|
|
<LoadingIcon />
|
|
) : (
|
|
<div
|
|
className="markdown-body"
|
|
style={{ fontSize: `${fontSize}px` }}
|
|
onContextMenu={(e) => onRightClick(e, message)}
|
|
onDoubleClickCapture={() => {
|
|
if (!isMobileScreen()) return;
|
|
setUserInput(message.content);
|
|
}}
|
|
>
|
|
<Markdown content={message.content} />
|
|
</div>
|
|
)}
|
|
</div>
|
|
{!isUser && !message.preview && (
|
|
<div className={styles["chat-message-actions"]}>
|
|
<div className={styles["chat-message-action-date"]}>
|
|
{message.date.toLocaleString()}
|
|
</div>
|
|
</div>
|
|
)}
|
|
</div>
|
|
</div>
|
|
);
|
|
})}
|
|
</div>
|
|
|
|
<div className={styles["chat-input-panel"]}>
|
|
<PromptHints prompts={promptHints} onPromptSelect={onPromptSelect} />
|
|
<div className={styles["chat-input-panel-inner"]}>
|
|
<textarea
|
|
ref={inputRef}
|
|
className={styles["chat-input"]}
|
|
placeholder={Locale.Chat.Input(submitKey)}
|
|
rows={2}
|
|
onInput={(e) => onInput(e.currentTarget.value)}
|
|
value={userInput}
|
|
onKeyDown={onInputKeyDown}
|
|
onFocus={() => setAutoScroll(true)}
|
|
onBlur={() => {
|
|
setAutoScroll(false);
|
|
setTimeout(() => setPromptHints([]), 500);
|
|
}}
|
|
autoFocus={!props?.sideBarShowing}
|
|
/>
|
|
<IconButton
|
|
icon={<SendWhiteIcon />}
|
|
text={Locale.Chat.Send}
|
|
className={styles["chat-input-send"]}
|
|
noDark
|
|
onClick={onUserSubmit}
|
|
/>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
);
|
|
}
|