/**
 * Command line interface for SERVERUS
 * @module
 */

import { parseArgs } from '@std/cli/parse-args';
import { SERVER } from './server.ts';
import * as path from '@std/path';

const settings = parseArgs(Deno.args, {
	boolean: ['help', 'logs', 'version', 'watch'],
	string: ['hostname', 'port', 'root'],
	negatable: ['logs', 'watch'],
	alias: {
		help: 'h',
		port: 'p',
		root: 'r',
		version: 'v',
		watch: 'w'
	},
	default: {
		hostname: 'localhost',
		logs: true,
		port: '8000',
		root: Deno.env.get('SERVERUS_ROOT') ?? './',
		watch: true
	}
});

if (settings.help) {
	console.log(
		`Usage: serverus [--h(elp)] [--v(ersion)] [--no-logs] [--no-watch] [--r(oot) ./www]

Options:
  -h, --help		Show this help message
  --hostname		Set the hostname/ip to bind to, default: localhost
  --no-logs			Disable logging
  --no-watch		Disable watch/reloading for certain types of file changes (handlers, typescript)
  -p, --port		Set the port to bind to, default: 8000
  -r, --root		Set the root directory to serve, default: './'
  -v, --version		Show the version number
`
	);
	Deno.exit(0);
}

const resolved_root: string = path.resolve(settings.root);
Deno.chdir(resolved_root);

const server = new SERVER({
	hostname: settings.hostname,
	port: typeof settings.port == 'string' ? parseInt(settings.port) : undefined,
	logging: settings.logs
});

Deno.addSignalListener('SIGINT', async () => {
	await server.stop();
	Deno.exit();
});

await server.start();