@ou-imdt/utils/lib/dev/loadAllData.js

Utility library for interactive media development

import isLocalAvailable from '../isLocalAvailable.js';
import getSavePrefix from './getSavePrefix.js';

/**
 * Loads all data from localStorage.
 * @param {Object} options - Options for loading all data.
 * @param {boolean | string} options.user - User/global, or group identifier.
 * @param {string} [options.activityId] - Optional activity ID.
 * @param {string} [options.documentId] - Optional document ID.
 * @param {string} [options.courseId] - Optional course ID.
 * @param {string} [options.modName] - Optional mod name.
 * @returns {Promise<any>} A promise that resolves with all loaded data, or rejects on error.
 */
export default async function loadAllDevData(options) {
  if (!isLocalAvailable()) throw new Error('Local storage is not available');

  try {
    await new Promise(resolve => setTimeout(resolve, 0)); // add flag to make async?

    const prefix = getSavePrefix(options);
    const values = [...Array(localStorage.length).keys()].reduce((result, index) => {
      const key = localStorage.key(index);
  
      if (key.startsWith(prefix)) {
        result[key] = JSON.parse(localStorage.getItem(key));
      }
      return result;
    }, {});
    return values;
  } catch (err) {
    throw new Error('Error loading all data');
  }
}