import * as http from 'http';
import * as debug from 'debug';
import App from './App';
import { Environment, Env } from 'roit-environment';

if (Environment.acceptedEnv(Env.DEV)) {

    const portEnv = Environment.getProperty("port")

    debug('ts-express:server');
    const port = normalizePort(process.env.PORT || portEnv);
    App.set('port', port);
    const server = http.createServer(App);
    server.listen(port);
    server.on('error', onError);
    server.on('listening', onListening);
    function normalizePort(val: number | string): number | string | boolean {
        let port: number = (typeof val === 'string') ? parseInt(val, 10) : val;
        if (isNaN(port)) return val;
        else if (port >= 0) return port;
        else return false;
    }
    function onError(error: NodeJS.ErrnoException): void {
        if (error.syscall !== 'listen') throw error;
        let bind = (typeof port === 'string') ? 'Pipe ' + port : 'Port ' + port;
        switch (error.code) {
            case 'EACCES':
                console.error(`${bind} requires elevated privileges`);
                process.exit(1);
                break;
            case 'EADDRINUSE':
                console.error(`${bind} is already in use`);
                process.exit(1);
                break;
            default:
                throw error;
        }
    }
    function onListening(): void {
        let addr = server.address();
        console.log(`Listening on http://localhost:${addr.port}/`);
    }
} else {

    exports.serviceTemplate = (request, response) => {
        return App(request, response)
    }

}