//! Dedicated server for graf_karto. Starts only the backend that the client relies on and allows
//! connections from the outside if possible.

#![allow(dead_code)]
#![warn(missing_docs)]

#[macro_use]
extern crate log;

pub mod math;
pub mod net;
pub mod server;
pub mod stable_vec;
pub mod transformable;
pub mod world;

use clap::{App, Arg};
pub use server::*;

fn main() {
    println!(
        "Graf Karto dedicated server version: {}",
        clap::crate_version!()
    );

    let default_port = DEFAULT_PORT.to_string();
    let matches = App::new("Graf Karto")
        .version(clap::crate_version!())
        .author(clap::crate_authors!())
        .about(clap::crate_description!())
        .arg(
            Arg::with_name("port")
                .short("p")
                .value_name("SERVER_PORT")
                .help("Set the port the should listen on.")
                .default_value(&default_port),
        )
        .arg(
            Arg::with_name("ipv4")
                .short("v4")
                .help("Use virgin IPv4 instead of chad IPv6.. you monster"),
        )
        .get_matches();

    let use_ipv4 = matches.is_present("ipv4");
    let port = match matches
        .value_of("port")
        .expect("No port found, eventhough it should have a default value")
        .parse::<u16>()
    {
        Ok(port) => port,
        Err(e) => {
            error!("Not a valid server port: {:?}", e);
            warn!("Using default port {}", DEFAULT_PORT);
            DEFAULT_PORT
        }
    };

    let server_handle = server::start_with_port(port, use_ipv4)
        .expect("Unable to start server. Make sure the port you want to bind it on is free.");

    server_handle
        .join()
        .expect("Server did not shut down correctly.");
}