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

/*****************************************************************************\
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| General Bots Copyright (c) Pragmatismo.io. All rights reserved.             |
| Licensed under the AGPL-3.0.                                                |
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\*****************************************************************************/

/**
 * @fileoverview General Bots server core.
 */

'use strict';

import { IGBCoreService, IGBInstance } from 'botlib';
import fs = require('fs');
import urlJoin = require('url-join');
import { GuaribasInstance } from '../models/GBModel';
import { GBConfigService } from './GBConfigService';
import { GBServer } from '../../../src/app';

/**
 * Handles the importing of packages.
 */
export class GBImporter {
  public core: IGBCoreService;

  constructor(core: IGBCoreService) {
    this.core = core;
  }

  public async importIfNotExistsBotPackage(botId: string, packageName: string, localPath: string) {
    const packageJson = JSON.parse(fs.readFileSync(urlJoin(localPath, 'package.json'), 'utf8'));
    if (botId === undefined) {
      botId = packageJson.botId;
    }
    if (botId === undefined) {
      botId = GBConfigService.get('BOT_ID');
    }
    const instance = await this.core.loadInstance(botId);
    
    return await this.createOrUpdateInstanceInternal(instance, botId, localPath, packageJson);
  }

  private async createOrUpdateInstanceInternal(instance: IGBInstance,
    botId: string, localPath: string, packageJson: any) {
    const settings = JSON.parse(fs.readFileSync(urlJoin(localPath, 'settings.json'), 'utf8'));
    const servicesJson = JSON.parse(fs.readFileSync(urlJoin(localPath, 'services.json'), 'utf8'));

    packageJson = { ...GBServer.globals.bootInstance, ...packageJson, ...settings, ...servicesJson };

    if (botId !== undefined) {
      packageJson.botId = botId;
    }

    if (instance !== null) {
      instance = { ...instance, ...packageJson, ...settings, ...servicesJson };

      return this.core.saveInstance(instance);
    } else {
      return await GuaribasInstance.create(packageJson);
    }
  }
}