// dtp-webapp.js
// Copryright (C) DTP Technologies, LLC
// Licence: Apache-2.0

'use strict';

const DTP_COMPONENT_NAME = 'webapp';

require('dotenv').config();

const path = require('path');

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

module.rootPath = __dirname;
module.pkg = require(path.join(module.rootPath, 'package.json'));
module.config = {
  componentName: DTP_COMPONENT_NAME,
  root: module.rootPath,
  site: require(path.join(module.rootPath, 'config', 'site')),
  http: {
    address: process.env.HTTP_BIND_ADDRESS,
    port: parseInt(process.env.HTTP_BIND_PORT, 10),
  },
};

module.log = new SiteLog(module, module.config.componentName);

module.shutdown = async ( ) => {

};

(async ( ) => {

  process.on('unhandledRejection', (error, p) => {
    module.log.error('Unhandled rejection', {
      error: error,
      promise: p,
      stack: error.stack
    });
  });
  
  process.on('warning', (error) => {
    module.log.alert('warning', { error });
  });
  
  process.once('SIGINT', async ( ) => {
    module.log.info('SIGINT received');
    module.log.info('requesting shutdown...');
    await module.shutdown();
    const exitCode = await SitePlatform.shutdown();
    process.nextTick(( ) => {
      process.exit(exitCode);
    });
  });
  
  process.once('SIGUSR2', async ( ) => {
    await SitePlatform.shutdown();
    process.kill(process.pid, 'SIGUSR2');
  });

  try {
    await SitePlatform.startPlatform(module);
    await SitePlatform.startWebServer(module);
  } catch (error) {
    module.log.error(`failed to start DTP ${DTP_COMPONENT_NAME}`, { error });
    process.exit(-1);
  }

})();