use hyper::{
    service::{make_service_fn, service_fn},
    Server,
};
use std::convert::Infallible; // TODO:

mod config;
mod error;
mod handlers;
mod models;
mod repo;
mod templates;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let addr = config::INSTANCE.addr;

    let make_svc = make_service_fn(move |_conn| async {
        Ok::<_, Infallible>(service_fn(|req| handlers::router(req)))
    });

    let server = Server::bind(&addr).serve(make_svc);
    let graceful = server.with_graceful_shutdown(shutdown_signal());

    // run until shutdown signal
    if let Err(e) = graceful.await {
        eprintln!("server error: {}", e);
    }

    Ok(())
}

async fn shutdown_signal() {
    // Wait for CTRL+C
    tokio::signal::ctrl_c()
        .await
        .expect("failed to install CTRL+C signal handler");
}