@chris-lewis/fitbit-utils/app/db.js

Common utility modules for common tasks across projects.

import { readFileSync, writeFileSync } from 'fs';
var data = {};
var dbPath = '';
/**
 * Save the data to the filesystem.
 */

var save = function save() {
  return writeFileSync(dbPath, data, 'json');
};
/**
 * Initialise the data in the filesystem to empty object.
 *
 * @param {string} appName - App name, used to save data for this app.
 */


export var init = function init(appName) {
  if (!appName) {
    throw new Error('Please specify the app name!');
  }

  dbPath = "".concat(appName, ".json");

  try {
    data = readFileSync(dbPath, 'json');
    console.log("Loaded ".concat(dbPath));
  } catch (e) {
    console.log(e);
    data = {};
    save();
  }
};
/**
 * Determine if a key contains data.
 *
 * @param {string} key - Key to search.
 * @returns {boolean} true if the key has defined value.
 */

export var contains = function contains(key) {
  return get(key) !== null;
};
/**
 * Get a value for a given key.
 *
 * @param {string} key - Key to search.
 * @returns {*} Value associated, if any.
 */

export var get = function get(key) {
  return data[key];
};
/**
 * Set a value and save it.
 *
 * @param {string} key - Key to use.
 * @param {*} value - Value to use.
 */

export var set = function set(key, value) {
  data[key] = value;
  save();
};