@reldens/items-system/lib/server.js

Reldens - Items System

/**
 *
 * Reldens - Items System - Server Package
 *
 * This class is just to group the server side features, storage and communications along with the items manager.
 *
 */

const ItemsManager = require('./manager');
const { StorageObserver } = require('./server/storage-observer');
const Sender = require('./server/sender');
const { Logger, sc } = require('@reldens/utils');

class ItemsServer
{

    constructor(props)
    {
        this.hasError = false;
        if(!sc.hasOwn(props, 'owner')){
            Logger.critical('Undefined owner.');
            this.hasError = true;
        }
        this.manager = new ItemsManager(props);
        this.hasError = false;
        this.createStorageObserver(props);
        this.createClient(props);
    }

    createClient(props)
    {
        if(this.hasError){
            return false;
        }
        if(!sc.hasOwn(props, 'client')){
            return false;
        }
        this.client = new Sender({manager: this.manager, client: props.client});
    }

    createStorageObserver(props)
    {
        if(this.hasError){
            return false;
        }
        // check if the storage was activated:
        if(!sc.hasOwn(props, 'persistence') || !props.persistence){
            return false;
        }
        let modelsManager = false;
        if (sc.hasOwn(props, 'modelsManager')) {
            modelsManager = props.modelsManager;
        }
        // check if the owner has the required persisData methods in the case the storage is active:
        if(!sc.hasOwn(props.owner, 'persistData') || 'function' !== typeof props.owner.persistData){
            Logger.error('Required method "persistData" not found in ItemServer props.owner.');
            return false;
        }
        this.dataServer = new StorageObserver(this.manager, modelsManager);
        this.dataServer.listenEvents();
    }

}

module.exports = ItemsServer;