@openveo/portal/app/server/context.js

OpenVeo Portal gives access to medias exposed by OpenVeo server associated to an OpenVeo Publish plugin

'use strict';

/**
 * @module portal/context
 */

const openVeoApi = require('@openveo/api');
const OpenVeoProvider = process.require('app/server/providers/OpenVeoProvider.js');

class Context {

  /**
   * Defines an application context.
   *
   * Context is a singleton representing a global context for the whole project.
   * It contains a restricted list of elements as properties which can be accessed
   * from anywhere.
   *
   * @example
   * const context = process.require('app/server/context.js');
   * console.log(context.database);
   *
   * @class context
   * @constructor
   */
  constructor() {
    let database;
    let openVeoProvider;

    Object.defineProperties(this,

      /** @lends module:portal/context~Context */
      {

        /**
         * The application database instance.
         *
         * @type {Database}
         * @instance
         */
        database: {
          enumerable: true,
          get: () => {
            return database;
          },
          set: (value) => {
            if (value instanceof openVeoApi.storages.Database) database = value;
          }
        },

        /**
         * An OpenVeoProvider instance.
         *
         * @type {module:portal/providers/OpenVeoProvider~OpenVeoProvider}
         * @instance
         */
        openVeoProvider: {
          enumerable: true,
          get: () => {
            return openVeoProvider;
          },
          set: (value) => {
            if (value instanceof OpenVeoProvider) openVeoProvider = value;
          }
        }

      }

    );
  }

}

// Create singleton and seal it
const context = new Context();
Object.seal(context);

module.exports = context;