mirror of
https://github.com/ChatGPTNextWeb/ChatGPT-Next-Web.git
synced 2025-05-25 23:20:19 +09:00
675 lines
19 KiB
TypeScript
675 lines
19 KiB
TypeScript
import { create } from "zustand";
|
|
import { persist } from "zustand/middleware";
|
|
|
|
import { trimTopic } from "../utils";
|
|
|
|
import Locale, { getLang } from "../locales";
|
|
import { showToast } from "../components/ui-lib";
|
|
import { ModelConfig, ModelType, useAppConfig } from "./config";
|
|
import { createEmptyMask, Mask } from "./mask";
|
|
import {
|
|
DEFAULT_INPUT_TEMPLATE,
|
|
DEFAULT_SYSTEM_TEMPLATE,
|
|
StoreKey,
|
|
} from "../constant";
|
|
import { api, RequestMessage } from "../client/api";
|
|
import { ChatControllerPool } from "../client/controller";
|
|
import { prettyObject } from "../utils/format";
|
|
import { estimateTokenLength } from "../utils/token";
|
|
import { nanoid } from "nanoid";
|
|
|
|
export type ChatMessage = RequestMessage & {
|
|
date: string;
|
|
streaming?: boolean;
|
|
isError?: boolean;
|
|
id: string;
|
|
model?: ModelType;
|
|
toolPrompt?: string;
|
|
};
|
|
|
|
export function createMessage(override: Partial<ChatMessage>): ChatMessage {
|
|
return {
|
|
id: nanoid(),
|
|
date: new Date().toLocaleString(),
|
|
role: "user",
|
|
content: "",
|
|
toolPrompt: undefined,
|
|
...override,
|
|
};
|
|
}
|
|
|
|
export interface ChatStat {
|
|
tokenCount: number;
|
|
wordCount: number;
|
|
charCount: number;
|
|
}
|
|
|
|
export interface ChatSession {
|
|
id: string;
|
|
topic: string;
|
|
|
|
memoryPrompt: string;
|
|
messages: ChatMessage[];
|
|
stat: ChatStat;
|
|
lastUpdate: number;
|
|
lastSummarizeIndex: number;
|
|
clearContextIndex?: number;
|
|
|
|
mask: Mask;
|
|
webSearch: boolean;
|
|
}
|
|
|
|
export const DEFAULT_TOPIC = Locale.Store.DefaultTopic;
|
|
export const BOT_HELLO: ChatMessage = createMessage({
|
|
role: "assistant",
|
|
content: Locale.Store.BotHello,
|
|
});
|
|
|
|
function createEmptySession(): ChatSession {
|
|
return {
|
|
id: nanoid(),
|
|
topic: DEFAULT_TOPIC,
|
|
memoryPrompt: "",
|
|
messages: [],
|
|
stat: {
|
|
tokenCount: 0,
|
|
wordCount: 0,
|
|
charCount: 0,
|
|
},
|
|
lastUpdate: Date.now(),
|
|
lastSummarizeIndex: 0,
|
|
|
|
mask: createEmptyMask(),
|
|
webSearch: false,
|
|
};
|
|
}
|
|
|
|
interface ChatStore {
|
|
sessions: ChatSession[];
|
|
currentSessionIndex: number;
|
|
clearSessions: () => void;
|
|
moveSession: (from: number, to: number) => void;
|
|
selectSession: (index: number) => void;
|
|
newSession: (mask?: Mask) => void;
|
|
deleteSession: (index: number) => void;
|
|
currentSession: () => ChatSession;
|
|
nextSession: (delta: number) => void;
|
|
onNewMessage: (message: ChatMessage) => void;
|
|
onUserInput: (content: string) => Promise<void>;
|
|
summarizeSession: () => void;
|
|
updateStat: (message: ChatMessage) => void;
|
|
updateCurrentSession: (updater: (session: ChatSession) => void) => void;
|
|
updateMessage: (
|
|
sessionIndex: number,
|
|
messageIndex: number,
|
|
updater: (message?: ChatMessage) => void,
|
|
) => void;
|
|
resetSession: () => void;
|
|
getMessagesWithMemory: () => ChatMessage[];
|
|
getMemoryPrompt: () => ChatMessage;
|
|
|
|
clearAllData: () => void;
|
|
}
|
|
|
|
function countMessages(msgs: ChatMessage[]) {
|
|
return msgs.reduce((pre, cur) => pre + estimateTokenLength(cur.content), 0);
|
|
}
|
|
|
|
function fillTemplateWith(input: string, modelConfig: ModelConfig) {
|
|
const vars = {
|
|
model: modelConfig.model,
|
|
time: new Date().toLocaleString(),
|
|
lang: getLang(),
|
|
input: input,
|
|
};
|
|
|
|
let output = modelConfig.template ?? DEFAULT_INPUT_TEMPLATE;
|
|
|
|
// must contains {{input}}
|
|
const inputVar = "{{input}}";
|
|
if (!output.includes(inputVar)) {
|
|
output += "\n" + inputVar;
|
|
}
|
|
|
|
Object.entries(vars).forEach(([name, value]) => {
|
|
output = output.replaceAll(`{{${name}}}`, value);
|
|
});
|
|
|
|
return output;
|
|
}
|
|
|
|
export const useChatStore = create<ChatStore>()(
|
|
persist(
|
|
(set, get) => ({
|
|
sessions: [createEmptySession()],
|
|
currentSessionIndex: 0,
|
|
|
|
clearSessions() {
|
|
set(() => ({
|
|
sessions: [createEmptySession()],
|
|
currentSessionIndex: 0,
|
|
}));
|
|
},
|
|
|
|
selectSession(index: number) {
|
|
set({
|
|
currentSessionIndex: index,
|
|
});
|
|
},
|
|
|
|
moveSession(from: number, to: number) {
|
|
set((state) => {
|
|
const { sessions, currentSessionIndex: oldIndex } = state;
|
|
|
|
// move the session
|
|
const newSessions = [...sessions];
|
|
const session = newSessions[from];
|
|
newSessions.splice(from, 1);
|
|
newSessions.splice(to, 0, session);
|
|
|
|
// modify current session id
|
|
let newIndex = oldIndex === from ? to : oldIndex;
|
|
if (oldIndex > from && oldIndex <= to) {
|
|
newIndex -= 1;
|
|
} else if (oldIndex < from && oldIndex >= to) {
|
|
newIndex += 1;
|
|
}
|
|
|
|
return {
|
|
currentSessionIndex: newIndex,
|
|
sessions: newSessions,
|
|
};
|
|
});
|
|
},
|
|
|
|
newSession(mask) {
|
|
const session = createEmptySession();
|
|
|
|
if (mask) {
|
|
const config = useAppConfig.getState();
|
|
const globalModelConfig = config.modelConfig;
|
|
|
|
session.mask = {
|
|
...mask,
|
|
modelConfig: {
|
|
...globalModelConfig,
|
|
...mask.modelConfig,
|
|
},
|
|
};
|
|
session.topic = mask.name;
|
|
}
|
|
|
|
set((state) => ({
|
|
currentSessionIndex: 0,
|
|
sessions: [session].concat(state.sessions),
|
|
}));
|
|
},
|
|
|
|
nextSession(delta) {
|
|
const n = get().sessions.length;
|
|
const limit = (x: number) => (x + n) % n;
|
|
const i = get().currentSessionIndex;
|
|
get().selectSession(limit(i + delta));
|
|
},
|
|
|
|
deleteSession(index) {
|
|
const deletingLastSession = get().sessions.length === 1;
|
|
const deletedSession = get().sessions.at(index);
|
|
|
|
if (!deletedSession) return;
|
|
|
|
const sessions = get().sessions.slice();
|
|
sessions.splice(index, 1);
|
|
|
|
const currentIndex = get().currentSessionIndex;
|
|
let nextIndex = Math.min(
|
|
currentIndex - Number(index < currentIndex),
|
|
sessions.length - 1,
|
|
);
|
|
|
|
if (deletingLastSession) {
|
|
nextIndex = 0;
|
|
sessions.push(createEmptySession());
|
|
}
|
|
|
|
// for undo delete action
|
|
const restoreState = {
|
|
currentSessionIndex: get().currentSessionIndex,
|
|
sessions: get().sessions.slice(),
|
|
};
|
|
|
|
set(() => ({
|
|
currentSessionIndex: nextIndex,
|
|
sessions,
|
|
}));
|
|
|
|
showToast(
|
|
Locale.Home.DeleteToast,
|
|
{
|
|
text: Locale.Home.Revert,
|
|
onClick() {
|
|
set(() => restoreState);
|
|
},
|
|
},
|
|
5000,
|
|
);
|
|
},
|
|
|
|
currentSession() {
|
|
let index = get().currentSessionIndex;
|
|
const sessions = get().sessions;
|
|
|
|
if (index < 0 || index >= sessions.length) {
|
|
index = Math.min(sessions.length - 1, Math.max(0, index));
|
|
set(() => ({ currentSessionIndex: index }));
|
|
}
|
|
|
|
const session = sessions[index];
|
|
|
|
return session;
|
|
},
|
|
|
|
onNewMessage(message) {
|
|
get().updateCurrentSession((session) => {
|
|
session.messages = session.messages.concat();
|
|
session.lastUpdate = Date.now();
|
|
});
|
|
get().updateStat(message);
|
|
get().summarizeSession();
|
|
},
|
|
|
|
async onUserInput(content) {
|
|
const session = get().currentSession();
|
|
const modelConfig = session.mask.modelConfig;
|
|
|
|
const userContent = fillTemplateWith(content, modelConfig);
|
|
console.log("[User Input] after template: ", userContent);
|
|
|
|
const userMessage: ChatMessage = createMessage({
|
|
role: "user",
|
|
content: userContent,
|
|
});
|
|
|
|
const botMessage: ChatMessage = createMessage({
|
|
role: "assistant",
|
|
streaming: true,
|
|
model: modelConfig.model,
|
|
});
|
|
|
|
// get recent messages
|
|
const recentMessages = get().getMessagesWithMemory();
|
|
const sendMessages = recentMessages.concat(userMessage);
|
|
const messageIndex = get().currentSession().messages.length + 1;
|
|
|
|
// save user's and bot's message
|
|
get().updateCurrentSession((session) => {
|
|
const savedUserMessage = {
|
|
...userMessage,
|
|
content,
|
|
};
|
|
session.messages.push(savedUserMessage);
|
|
});
|
|
|
|
if (session.webSearch) {
|
|
const query = encodeURIComponent(content);
|
|
let searchResult = await api.searchTool.call(query);
|
|
console.log("[Tools] ", searchResult);
|
|
const webSearchPrompt = `
|
|
Using the provided web search results, write a comprehensive reply to the given query.
|
|
If the provided search results refer to multiple subjects with the same name, write separate answers for each subject.
|
|
Make sure to cite results using \`[[number](URL)]\` notation after the reference.
|
|
|
|
Web search json results:
|
|
"""
|
|
${JSON.stringify(searchResult)}
|
|
"""
|
|
|
|
Current date:
|
|
"""
|
|
${new Date().toISOString()}
|
|
"""
|
|
|
|
Query:
|
|
"""
|
|
${content}
|
|
"""
|
|
|
|
Reply in ${getLang()} and markdown.`;
|
|
userMessage.toolPrompt = webSearchPrompt;
|
|
}
|
|
// save user's and bot's message
|
|
get().updateCurrentSession((session) => {
|
|
session.messages.push(botMessage);
|
|
});
|
|
|
|
// make request
|
|
api.llm.chat({
|
|
messages: sendMessages,
|
|
config: { ...modelConfig, stream: true },
|
|
onUpdate(message) {
|
|
botMessage.streaming = true;
|
|
if (message) {
|
|
botMessage.content = message;
|
|
}
|
|
get().updateCurrentSession((session) => {
|
|
session.messages = session.messages.concat();
|
|
});
|
|
},
|
|
onFinish(message) {
|
|
botMessage.streaming = false;
|
|
if (message) {
|
|
botMessage.content = message;
|
|
get().onNewMessage(botMessage);
|
|
}
|
|
ChatControllerPool.remove(session.id, botMessage.id);
|
|
},
|
|
onError(error) {
|
|
const isAborted = error.message.includes("aborted");
|
|
botMessage.content =
|
|
"\n\n" +
|
|
prettyObject({
|
|
error: true,
|
|
message: error.message,
|
|
});
|
|
botMessage.streaming = false;
|
|
userMessage.isError = !isAborted;
|
|
botMessage.isError = !isAborted;
|
|
get().updateCurrentSession((session) => {
|
|
session.messages = session.messages.concat();
|
|
});
|
|
ChatControllerPool.remove(
|
|
session.id,
|
|
botMessage.id ?? messageIndex,
|
|
);
|
|
|
|
console.error("[Chat] failed ", error);
|
|
},
|
|
onController(controller) {
|
|
// collect controller for stop/retry
|
|
ChatControllerPool.addController(
|
|
session.id,
|
|
botMessage.id ?? messageIndex,
|
|
controller,
|
|
);
|
|
},
|
|
});
|
|
},
|
|
|
|
getMemoryPrompt() {
|
|
const session = get().currentSession();
|
|
|
|
return {
|
|
role: "system",
|
|
content:
|
|
session.memoryPrompt.length > 0
|
|
? Locale.Store.Prompt.History(session.memoryPrompt)
|
|
: "",
|
|
date: "",
|
|
} as ChatMessage;
|
|
},
|
|
|
|
getMessagesWithMemory() {
|
|
const session = get().currentSession();
|
|
const modelConfig = session.mask.modelConfig;
|
|
const clearContextIndex = session.clearContextIndex ?? 0;
|
|
const messages = session.messages.slice();
|
|
const totalMessageCount = session.messages.length;
|
|
|
|
// in-context prompts
|
|
const contextPrompts = session.mask.context.slice();
|
|
|
|
// system prompts, to get close to OpenAI Web ChatGPT
|
|
const shouldInjectSystemPrompts = modelConfig.enableInjectSystemPrompts;
|
|
const systemPrompts = shouldInjectSystemPrompts
|
|
? [
|
|
createMessage({
|
|
role: "system",
|
|
content: fillTemplateWith("", {
|
|
...modelConfig,
|
|
template: DEFAULT_SYSTEM_TEMPLATE,
|
|
}),
|
|
}),
|
|
]
|
|
: [];
|
|
if (shouldInjectSystemPrompts) {
|
|
console.log(
|
|
"[Global System Prompt] ",
|
|
systemPrompts.at(0)?.content ?? "empty",
|
|
);
|
|
}
|
|
|
|
// long term memory
|
|
const shouldSendLongTermMemory =
|
|
modelConfig.sendMemory &&
|
|
session.memoryPrompt &&
|
|
session.memoryPrompt.length > 0 &&
|
|
session.lastSummarizeIndex > clearContextIndex;
|
|
const longTermMemoryPrompts = shouldSendLongTermMemory
|
|
? [get().getMemoryPrompt()]
|
|
: [];
|
|
const longTermMemoryStartIndex = session.lastSummarizeIndex;
|
|
|
|
// short term memory
|
|
const shortTermMemoryStartIndex = Math.max(
|
|
0,
|
|
totalMessageCount - modelConfig.historyMessageCount,
|
|
);
|
|
|
|
// lets concat send messages, including 4 parts:
|
|
// 0. system prompt: to get close to OpenAI Web ChatGPT
|
|
// 1. long term memory: summarized memory messages
|
|
// 2. pre-defined in-context prompts
|
|
// 3. short term memory: latest n messages
|
|
// 4. newest input message
|
|
const memoryStartIndex = shouldSendLongTermMemory
|
|
? Math.min(longTermMemoryStartIndex, shortTermMemoryStartIndex)
|
|
: shortTermMemoryStartIndex;
|
|
// and if user has cleared history messages, we should exclude the memory too.
|
|
const contextStartIndex = Math.max(clearContextIndex, memoryStartIndex);
|
|
const maxTokenThreshold = modelConfig.max_tokens;
|
|
|
|
// get recent messages as much as possible
|
|
const reversedRecentMessages = [];
|
|
for (
|
|
let i = totalMessageCount - 1, tokenCount = 0;
|
|
i >= contextStartIndex && tokenCount < maxTokenThreshold;
|
|
i -= 1
|
|
) {
|
|
const msg = messages[i];
|
|
if (!msg || msg.isError) continue;
|
|
tokenCount += estimateTokenLength(msg.content);
|
|
reversedRecentMessages.push(msg);
|
|
}
|
|
|
|
// concat all messages
|
|
const recentMessages = [
|
|
...systemPrompts,
|
|
...longTermMemoryPrompts,
|
|
...contextPrompts,
|
|
...reversedRecentMessages.reverse(),
|
|
];
|
|
|
|
return recentMessages;
|
|
},
|
|
|
|
updateMessage(
|
|
sessionIndex: number,
|
|
messageIndex: number,
|
|
updater: (message?: ChatMessage) => void,
|
|
) {
|
|
const sessions = get().sessions;
|
|
const session = sessions.at(sessionIndex);
|
|
const messages = session?.messages;
|
|
updater(messages?.at(messageIndex));
|
|
set(() => ({ sessions }));
|
|
},
|
|
|
|
resetSession() {
|
|
get().updateCurrentSession((session) => {
|
|
session.messages = [];
|
|
session.memoryPrompt = "";
|
|
});
|
|
},
|
|
|
|
summarizeSession() {
|
|
const session = get().currentSession();
|
|
|
|
// remove error messages if any
|
|
const messages = session.messages;
|
|
|
|
// should summarize topic after chating more than 50 words
|
|
const SUMMARIZE_MIN_LEN = 50;
|
|
if (
|
|
session.topic === DEFAULT_TOPIC &&
|
|
countMessages(messages) >= SUMMARIZE_MIN_LEN
|
|
) {
|
|
const topicMessages = messages.concat(
|
|
createMessage({
|
|
role: "user",
|
|
content: Locale.Store.Prompt.Topic,
|
|
}),
|
|
);
|
|
api.llm.chat({
|
|
messages: topicMessages,
|
|
config: {
|
|
model: "gpt-3.5-turbo",
|
|
},
|
|
onFinish(message) {
|
|
get().updateCurrentSession(
|
|
(session) =>
|
|
(session.topic =
|
|
message.length > 0 ? trimTopic(message) : DEFAULT_TOPIC),
|
|
);
|
|
},
|
|
});
|
|
}
|
|
|
|
const modelConfig = session.mask.modelConfig;
|
|
const summarizeIndex = Math.max(
|
|
session.lastSummarizeIndex,
|
|
session.clearContextIndex ?? 0,
|
|
);
|
|
let toBeSummarizedMsgs = messages
|
|
.filter((msg) => !msg.isError)
|
|
.slice(summarizeIndex);
|
|
|
|
const historyMsgLength = countMessages(toBeSummarizedMsgs);
|
|
|
|
if (historyMsgLength > modelConfig?.max_tokens ?? 4000) {
|
|
const n = toBeSummarizedMsgs.length;
|
|
toBeSummarizedMsgs = toBeSummarizedMsgs.slice(
|
|
Math.max(0, n - modelConfig.historyMessageCount),
|
|
);
|
|
}
|
|
|
|
// add memory prompt
|
|
toBeSummarizedMsgs.unshift(get().getMemoryPrompt());
|
|
|
|
const lastSummarizeIndex = session.messages.length;
|
|
|
|
console.log(
|
|
"[Chat History] ",
|
|
toBeSummarizedMsgs,
|
|
historyMsgLength,
|
|
modelConfig.compressMessageLengthThreshold,
|
|
);
|
|
|
|
if (
|
|
historyMsgLength > modelConfig.compressMessageLengthThreshold &&
|
|
modelConfig.sendMemory
|
|
) {
|
|
api.llm.chat({
|
|
messages: toBeSummarizedMsgs.concat(
|
|
createMessage({
|
|
role: "system",
|
|
content: Locale.Store.Prompt.Summarize,
|
|
date: "",
|
|
}),
|
|
),
|
|
config: { ...modelConfig, stream: true },
|
|
onUpdate(message) {
|
|
session.memoryPrompt = message;
|
|
},
|
|
onFinish(message) {
|
|
console.log("[Memory] ", message);
|
|
session.lastSummarizeIndex = lastSummarizeIndex;
|
|
},
|
|
onError(err) {
|
|
console.error("[Summarize] ", err);
|
|
},
|
|
});
|
|
}
|
|
},
|
|
|
|
updateStat(message) {
|
|
get().updateCurrentSession((session) => {
|
|
session.stat.charCount += message.content.length;
|
|
// TODO: should update chat count and word count
|
|
});
|
|
},
|
|
|
|
updateCurrentSession(updater) {
|
|
const sessions = get().sessions;
|
|
const index = get().currentSessionIndex;
|
|
updater(sessions[index]);
|
|
set(() => ({ sessions }));
|
|
},
|
|
|
|
clearAllData() {
|
|
localStorage.clear();
|
|
location.reload();
|
|
},
|
|
}),
|
|
{
|
|
name: StoreKey.Chat,
|
|
version: 3.1,
|
|
migrate(persistedState, version) {
|
|
const state = persistedState as any;
|
|
const newState = JSON.parse(JSON.stringify(state)) as ChatStore;
|
|
|
|
if (version < 2) {
|
|
newState.sessions = [];
|
|
|
|
const oldSessions = state.sessions;
|
|
for (const oldSession of oldSessions) {
|
|
const newSession = createEmptySession();
|
|
newSession.topic = oldSession.topic;
|
|
newSession.messages = [...oldSession.messages];
|
|
newSession.mask.modelConfig.sendMemory = true;
|
|
newSession.mask.modelConfig.historyMessageCount = 4;
|
|
newSession.mask.modelConfig.compressMessageLengthThreshold = 1000;
|
|
newState.sessions.push(newSession);
|
|
}
|
|
}
|
|
|
|
if (version < 3) {
|
|
// migrate id to nanoid
|
|
newState.sessions.forEach((s) => {
|
|
s.id = nanoid();
|
|
s.messages.forEach((m) => (m.id = nanoid()));
|
|
});
|
|
}
|
|
|
|
// Enable `enableInjectSystemPrompts` attribute for old sessions.
|
|
// Resolve issue of old sessions not automatically enabling.
|
|
if (version < 3.1) {
|
|
newState.sessions.forEach((s) => {
|
|
if (
|
|
// Exclude those already set by user
|
|
!s.mask.modelConfig.hasOwnProperty("enableInjectSystemPrompts")
|
|
) {
|
|
// Because users may have changed this configuration,
|
|
// the user's current configuration is used instead of the default
|
|
const config = useAppConfig.getState();
|
|
s.mask.modelConfig.enableInjectSystemPrompts =
|
|
config.modelConfig.enableInjectSystemPrompts;
|
|
}
|
|
});
|
|
}
|
|
|
|
return newState;
|
|
},
|
|
},
|
|
),
|
|
);
|