@blockv/sdk/lib/internal/DataPool/index.js

Allows web apps to display and interact with vatoms.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

/**
 * This is Version 2 of the Mempool. This version supports region monitoring, as well as timed updates.
 * Once this class is generic enough and the Data Pool Protocol is implemented, we can split this out into it's own npm module.
 *
 * This aims to follow what is described in https://github.com/BLOCKvIO/Data-Pool-Protocol/blob/master/Data%20Pool%20Protocol.md
 *
 */
class DataPool {
  constructor() {
    // Region plugins
    this.plugins = [require('./plugins/InventoryRegion').default, require('./plugins/VatomIDRegion').default, require('./plugins/VatomChildrenRegion').default, require('./plugins/GeoPosRegion').default]; // Currently active regions

    this.regions = []; // Session information

    this.sessionInfo = {};
  }
  /**
   * Fetches or creates a vatom region.
   *
   * @param {string} id The plugin ID.
   * @param {*} descriptor Region-specific filtering information. See plugins for more info.
   */


  region(id, descriptor) {
    // Find existing region
    let region = this.regions.find(r => r.matches(id, descriptor));

    if (region) {
      return region;
    } // We need to create a new region. Find region plugin


    let Region = this.plugins.find(p => p.id === id);

    if (!Region) {
      throw new Error(`Region with ID '${id}' not found.`);
    } // Create and store region


    region = new Region(this, descriptor);
    this.regions.push(region); // Make sure region has loaded from it's cache

    region.loadFromCache(); // Return new region

    return region;
  }
  /** Removes the specified region */


  removeRegion(region) {
    for (let i = 0; i < this.regions.length; i++) {
      if (this.regions[i] === region) {
        return this.regions.splice(i, 1);
      }
    }
  }
  /**
   * Update session-specific information used by plugins.
   */


  setSessionInfo(info) {
    // Store it
    this.sessionInfo = info; // Notify regions

    for (let r of this.regions) {
      r.onSessionInfoChanged(info);
    }
  }

}

exports.default = DataPool;