use crate::error::TwinHError;
use hyper::{
    service::{make_service_fn, service_fn},
    Server,
};
use log::LevelFilter;

#[macro_use]
extern crate lazy_static;

mod config;
mod error;
mod import;
mod models;
mod repo;
mod routes;
mod templates;

#[tokio::main]
async fn main() -> Result<(), TwinHError> {
    // configure logger
    let level = match config::INSTANCE.verbose {
        1 => LevelFilter::Info,
        2 => LevelFilter::Debug,
        _ => LevelFilter::Warn,
    };
    env_logger::builder().filter_level(level).init();

    // create HTTP listener
    let make_svc =
        make_service_fn(move |_conn| async { Ok::<_, TwinHError>(service_fn(routes::router)) });

    // bind server with signal
    let server = Server::bind(&config::INSTANCE.bind_addr.into()).serve(make_svc);
    let graceful = server.with_graceful_shutdown(shutdown_signal());

    // start and wait for shutdown
    graceful.await?;
    Ok(())
}

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