musicblocks test

Storage.js

// Copyright (c) 2019 Samyok Nepal
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the The GNU Affero General Public
// License as published by the Free Software Foundation; either
// version 3 of the License, or (at your option) any later version.
//
// You should have received a copy of the GNU Affero General Public
// License along with this library; if not, write to the Free Software
// Foundation, 51 Franklin Street, Suite 500 Boston, MA 02110-1335 USA
function Storage(options) {
    this.config = options;
    this._forage = localforage.createInstance(this.config);
    this.driver = localforage.driver();

    this.log = logItem => console.log(`[${this.driver}] ${logItem}`);

    this.setItem = (key, value, callback) => {
        this._forage.setItem(key, value, (err) => {
            this.log(`Saved ${key} as ${value}`);
            if (err) throw err;
            callback(err);
        });
    };

    this.getItem = (key, callback) => {
        this._forage.getItem(key, (err, result) => {
            if (err) throw err;
            callback(result);
        });
    };

    this.removeItem = (key, callback) => {
        this._forage.removeItem(key, (err) => {
            if (err) throw err;
            else this.log(`Cleared ${key}`);
            callback();
        })
    };
}