nwjs-bootstrap2/src/services/initializer.js

Minimalistic NW.js app bootstrap 2

import DB from "services/db";
import fs from "fs-extra";

const AppState = DB.getCollection("AppState");

/**
 * Check if application is initialized
 * @returns {Promise.<boolean>}
 */
async function isInitialized()
{
    const AppCurrentState = await AppState.findOne({});
    return AppCurrentState !== undefined && AppCurrentState.isInitialized === true;
}

/**
 * Set application as initialized
 * @returns {Promise.<object>}
 */
async function setInitialized()
{
    return AppState.update({}, { $set: { isInitialized: true } }, { upsert: true });
}

/**
 * Create required application folders
 * @returns {Promise.<void>}
 */
async function createFolders()
{
    const dataPath = nw.App.getDataPath();
    const initFolders = [
        "data",
        "images",
    ];
    await Promise.all(initFolders.map(function(folder) {
        return fs.ensureDir(dataPath + "/" + folder);
    }));
}

export default
{
    /**
     * Init application
     * @returns {Promise.<void>}
     */
    init: async function()
    {
        if (await isInitialized() === true) {
            return;
        }
        await createFolders();
        await setInitialized();
    }
}