dtamind-components
Version:
Apps integration for Dtamind. Contain Nodes and Credentials.
117 lines • 4.18 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const Interface_1 = require("../../../src/Interface");
const utils_1 = require("../../../src/utils");
const memory_1 = require("langchain/memory");
class BufferWindowMemory_Memory {
constructor() {
this.label = 'Buffer Window Memory';
this.name = 'bufferWindowMemory';
this.version = 2.0;
this.type = 'BufferWindowMemory';
this.icon = 'memory.svg';
this.category = 'Memory';
this.description = 'Uses a window of size k to surface the last k back-and-forth to use as memory';
this.baseClasses = [this.type, ...(0, utils_1.getBaseClasses)(memory_1.BufferWindowMemory)];
this.inputs = [
{
label: 'Size',
name: 'k',
type: 'number',
default: '4',
description: 'Window of size k to surface the last k back-and-forth to use as memory.'
},
{
label: 'Session Id',
name: 'sessionId',
type: 'string',
description: 'If not specified, a random id will be used. Learn <a target="_blank" href="https://docs.dtamindai.com/memory#ui-and-embedded-chat">more</a>',
default: '',
optional: true,
additionalParams: true
},
{
label: 'Memory Key',
name: 'memoryKey',
type: 'string',
default: 'chat_history',
additionalParams: true
}
];
}
async init(nodeData, _, options) {
const k = nodeData.inputs?.k;
const sessionId = nodeData.inputs?.sessionId;
const memoryKey = nodeData.inputs?.memoryKey ?? 'chat_history';
const appDataSource = options.appDataSource;
const databaseEntities = options.databaseEntities;
const chatflowid = options.chatflowid;
const orgId = options.orgId;
const obj = {
returnMessages: true,
sessionId,
memoryKey,
k: parseInt(k, 10),
appDataSource,
databaseEntities,
chatflowid,
orgId
};
return new BufferWindowMemoryExtended(obj);
}
}
class BufferWindowMemoryExtended extends Interface_1.DtamindWindowMemory {
constructor(fields) {
super(fields);
this.sessionId = '';
this.sessionId = fields.sessionId;
this.appDataSource = fields.appDataSource;
this.databaseEntities = fields.databaseEntities;
this.chatflowid = fields.chatflowid;
this.orgId = fields.orgId;
}
async getChatMessages(overrideSessionId = '', returnBaseMessages = false, prependMessages) {
const id = overrideSessionId ? overrideSessionId : this.sessionId;
if (!id)
return [];
let chatMessage = await this.appDataSource.getRepository(this.databaseEntities['ChatMessage']).find({
where: {
sessionId: id,
chatflowid: this.chatflowid
},
order: {
createdDate: 'ASC'
}
});
if (this.k <= 0) {
chatMessage = [];
}
else {
chatMessage = chatMessage.slice(-this.k * 2);
}
if (prependMessages?.length) {
chatMessage.unshift(...prependMessages);
}
if (returnBaseMessages) {
return await (0, utils_1.mapChatMessageToBaseMessage)(chatMessage, this.orgId);
}
let returnIMessages = [];
for (const m of chatMessage) {
returnIMessages.push({
message: m.content,
type: m.role
});
}
return returnIMessages;
}
async addChatMessages() {
// adding chat messages is done on server level
return;
}
async clearChatMessages() {
// clearing chat messages is done on server level
return;
}
}
module.exports = { nodeClass: BufferWindowMemory_Memory };
//# sourceMappingURL=BufferWindowMemory.js.map