lexica-dialog-core/dist/middlewares/NlpMiddleware.js

Core server for Lexica dialog agent.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const lodash_1 = require("lodash");
const immutable_1 = require("immutable");
const nlpMiddleware = async (context, next) => {
    const { uni, nlpService, request, sessionService, requestMessage, messageRepository } = context;
    let features;
    if (!lodash_1.isNil(sessionService)) {
        features = sessionService.getIntentMemoryFeatures();
    }
    if (!lodash_1.isNil(request) && !lodash_1.isNil(request.message) && context.commands.isEmpty()) {
        const commands = await nlpService.analyse(request.message, uni, features);
        context.commands = immutable_1.List(commands.toArray().map(command => ({
            attributes: immutable_1.Map(),
            botResponses: immutable_1.List(),
            features: command.features,
            name: command.name,
            processedFeatures: immutable_1.Map(),
        })));
        if (!lodash_1.isNil(requestMessage)) {
            const commandNames = commands.toArray().map(command => command.name);
            requestMessage.commands = commandNames;
            context.requestMessage = (await messageRepository.save(requestMessage));
        }
    }
    await next();
};
exports.default = nlpMiddleware;
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