startEngines.js

/*
© Copyright IBM Corp. 2017
*/

// Initialize handler
const {handler} = require('skill-sdk-nodejs');
const manifest = require('./res/assets/manifest.json');
const factory = require('skill-sdk-nodejs').factory;

// Expertise configuration
require('dotenv').config();


let started = false;
let startEngines = function (callback) {
    if (started) {
        if (callback) {
            callback();
        }
    } else {
        //initialize wcs in handler
        if (manifest.nlu.indexOf('wcs') > -1) {
            handler.initialize();
        }
        let localManifest = JSON.parse(JSON.stringify(manifest));
        let index = localManifest.nlu.indexOf('skill');
        if (index !== -1) {
            localManifest.nlu.splice(index, 1);
        }
        if (localManifest.nlu.length < 1) {
            console.error('No Nlu engines selected, you need to add the nlu engines you want to use to manifest.json nlu field')
        } else {
            factory.getNLUs(localManifest).then(updatedManifest => {
                if (updatedManifest.nlu.regexp) {
                    updatedManifest.intents = require('./res/nlu/intents');
                }
                handler.manifest = updatedManifest;
                factory.createAll(updatedManifest).then(function (engines) {
                    handler.engines = engines;

                    if (callback) {
                        started = true;
                        callback();
                    }
                });
            });
        }
        // The expertise handler
        require('./actions')();
    }
};

module.exports.startEngines = startEngines;