// sample-worker.js
// Copyright (C) 2022 DTP Technologies, LLC
// License: Apache-2.0

'use strict';

const path = require('path');
require('dotenv').config({ path: path.resolve(__dirname, '..', '..', '.env') });

const {
  SiteLog,
  SiteWorker,
} = require(path.join(__dirname, '..', '..', 'lib', 'site-lib'));

const { CronJob } = require('cron');

module.rootPath = path.resolve(__dirname, '..', '..');
module.pkg = require(path.resolve(__dirname, '..', '..', 'package.json'));

module.config = {
  environment: process.env.NODE_ENV,
  root: module.rootPath,
  component: { name: 'sampleWorker', slug: 'sample-worker' },
};

module.config.site = require(path.join(module.rootPath, 'config', 'site'));
module.config.http = require(path.join(module.rootPath, 'config', 'http'));

class SampleWorker extends SiteWorker {

  constructor (dtp) {
    super(dtp, { });
  }

  async start ( ) {
    const CRON_TIMEZONE = 'America/New_York';

    await super.start();

    this.log.info('starting worker job');
    this.job = new CronJob(
      '*/5 * * * * *',
      this.runJob.bind(this),
      null, true, CRON_TIMEZONE,
    );

    const { jobQueue: jobQueueService } = this.dtp.services;
    this.sampleJobQueue = jobQueueService.getJobQueue('dtp-sample', this.dtp.config.jobQueues['dtp-sample']);
    this.sampleJobQueue.process('dtp-sample', 1, this.processDtpSample.bind(this));
  }

  async stop ( ) {
    this.log.info('stopping sample worker job');
    this.job.stop();
    delete this.job;

    await super.stop();
  }

  async runJob ( ) {
    this.log.alert('sample job starting');

    /*
     * Your worker will do interesting things here
     */
  
    this.log.alert('sample job ending');
  }

  async processDtpSample (job) {
    this.log.info('received sample job', { id: job.id, data: job.data });
  }
}

(async ( ) => {
  try {
    module.log = new SiteLog(module, module.config.component);

    module.worker = new SampleWorker(module);
    await module.worker.start();

    module.log.info(`${module.pkg.name} v${module.pkg.version} ${module.config.component.name} started`);
  } catch (error) {
    module.log.error('failed to start worker', {
      component: module.config.component,
      error,
    });
    process.exit(-1);
  }

})();