botserver/packages/core.gbapp/services/GBVMService.ts

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'use strict';

import { GBMinInstance, IGBCoreService } from 'botlib';
import * as fs from 'fs';
import { DialogClass } from './GBAPIService';
import { GBDeployer } from './GBDeployer';
const util = require('util');
const logger = require('../../../src/logger');
const vm = require('vm');
const UrlJoin = require('url-join');

/**
 * @fileoverview Virtualization services for emulation of BASIC.
 */

export class GBVMService implements IGBCoreService {
  private script = new vm.Script();

  public async loadJS(
    filename: string,
    min: GBMinInstance,
    core: IGBCoreService,
    deployer: GBDeployer,
    localPath: string
  ): Promise<void> {

    localPath = UrlJoin(localPath, 'bot.vbs.js');
    const code: string = fs.readFileSync(localPath, 'utf8');
    const sandbox: DialogClass = new DialogClass(min);
    const context = vm.createContext(sandbox);
    vm.runInContext(code, context);

    await deployer.deployScriptToStorage(min.instanceId, filename);
    logger.info(`[GBVMService] Finished loading of ${filename}`);

    min.sandbox = sandbox;
  }
}