import { createLogger } from '@gongt/ts-stl-library/debug/create-logger';
import { LOG_LEVEL } from '@gongt/ts-stl-library/debug/levels';
import * as Koa from 'koa';
import { waitAppStart } from '../boot/app-wait-start';
import { getWebAppListenPort } from '../communication/listen';
import { globalWorkingCallback } from '../boot/gracefull';

const debug = createLogger(LOG_LEVEL.INFO, 'init-koa');
const error = createLogger(LOG_LEVEL.ERROR, 'init-koa');

export function bootKoaApp(app: Koa) {
	const appPort = getWebAppListenPort();
	
	debug('wait app to init...');
	waitAppStart().then(() => {
		debug('app init finished, try listen on: %s', appPort);
		const listen = app.listen(appPort);
		
		globalWorkingCallback('koa-server@' + appPort, listen);
	}, (...args: any[]) => {
		error('app init failed: ', ...args);
		process.exit(1);
	});
}