99AI/dist/modules/chat/store.js
2024-04-20 22:15:08 +08:00

138 lines
5.2 KiB
JavaScript

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.NineStore = void 0;
const tiktoken_1 = require("@dqbd/tiktoken");
const uuid_1 = require("uuid");
const tokenizer = (0, tiktoken_1.get_encoding)('cl100k_base');
class NineStore {
constructor(options) {
const { store, namespace, expires } = this.formatOptions(options);
this.store = store;
this.namespace = namespace;
this.expires = expires;
}
formatOptions(options) {
const { store, expires = 1000 * 60 * 60 * 24 * 3, namespace = 'chat' } = options;
return { store, namespace, expires };
}
generateKey(key) {
return this.namespace ? `${this.namespace}-${key}` : key;
}
async getData(id) {
const res = await this.store.get(id);
return res;
}
async setData(message, expires = this.expires) {
await this.store.set(message.id, message, expires);
}
async buildMessageFromParentMessageId(text, options, chatLogService) {
let { systemMessage = '', fileInfo, model, groupId, maxRounds = 5, maxModelTokens = 4000, isFileUpload = 0 } = options;
let messages = [];
if (systemMessage) {
console.log('Adding system message:', systemMessage);
messages.push({ role: 'system', content: systemMessage });
}
if (groupId) {
console.log('Querying chat history for groupId:', groupId, 'with maxRounds:', maxRounds);
const history = await chatLogService.chatHistory(groupId, maxRounds);
console.log('Received history records:', history.length);
let tempUserMessage = null;
history.forEach((record) => {
let content;
if (isFileUpload === 2 && record.fileInfo) {
content = [
{ type: "text", text: record.text },
{ type: "image_url", image_url: { url: record.fileInfo } }
];
}
else if (isFileUpload === 1 && record.fileInfo) {
content = record.fileInfo + "\n" + record.text;
}
else {
content = record.text;
}
if (record.role === 'user') {
tempUserMessage = { role: record.role, content };
}
else if (record.role === 'assistant' && tempUserMessage && content.trim() !== '') {
messages.push(tempUserMessage);
messages.push({ role: record.role, content });
tempUserMessage = null;
}
});
}
let currentMessageContent;
if (isFileUpload === 2 && fileInfo) {
currentMessageContent = [
{ type: "text", text },
{ type: "image_url", image_url: { url: fileInfo } }
];
}
else if (isFileUpload === 1 && fileInfo) {
currentMessageContent = fileInfo + "\n" + text;
}
else {
currentMessageContent = text;
}
messages.push({ role: 'user', content: currentMessageContent });
let totalTokens = await this._getTokenCount(messages);
while (totalTokens > maxModelTokens / 2) {
if (messages.length === 2 && messages[0].role === 'system' && messages[1].role === 'user') {
break;
}
let foundPairToDelete = false;
for (let i = 0; i < messages.length; i++) {
if (messages[i].role !== 'system' && messages[i + 1] && messages[i + 1].role === 'assistant') {
messages.splice(i, 2);
foundPairToDelete = true;
break;
}
}
if (!foundPairToDelete) {
for (let i = 0; i < messages.length; i++) {
if (messages[i].role === 'user') {
messages.splice(i, 1);
break;
}
}
}
totalTokens = await this._getTokenCount(messages);
if (messages.length <= 2) {
break;
}
}
return {
messagesHistory: messages,
round: messages.length
};
}
_getTokenCount(messages) {
let text = messages.reduce((pre, cur) => {
if (Array.isArray(cur.content)) {
const contentText = cur.content
.filter((item) => item.type === 'text')
.map((item) => item.text)
.join(' ');
return pre + contentText;
}
else {
return pre + (cur.content || '');
}
}, '');
text = text.replace(/<\|endoftext\|>/g, '');
return tokenizer.encode(text).length;
}
_recursivePruning(messages, maxNumTokens, systemMessage) {
const currentTokens = this._getTokenCount(messages);
if (currentTokens <= maxNumTokens) {
return messages;
}
messages.splice(systemMessage ? 1 : 0, 1);
return this._recursivePruning(messages, maxNumTokens, systemMessage);
}
getUuid() {
return (0, uuid_1.v4)();
}
}
exports.NineStore = NineStore;