use actix_web::{App, HttpServer, web::Data};
use dotenvy::dotenv;
use tracing::Level;
use tracing_subscriber::FmtSubscriber;

mod access;
mod config;
mod handlers;

#[actix_web::main]
async fn main() -> std::io::Result<()> {
    let subscriber = FmtSubscriber::builder()
        .with_max_level(Level::TRACE)
        .finish();

    tracing::subscriber::set_global_default(subscriber).expect("Could not initialize logging.");

    dotenv().expect("Could not load .env file.");

    let config = config::load_config();

    let mut server = HttpServer::new({
        let config = config.clone();
        move || {
            App::new()
                .app_data(Data::new(config.clone()))
                .wrap(actix_web::middleware::Logger::default())
                .service(handlers::get_cache_item)
                .service(handlers::put_cache_item)
        }
    })
    .keep_alive(None); // disable HTTP keep-alive because it seems to break NX (at least in version 20.8)

    for bind_address in config.bind_addresses.unwrap_or(vec!["::0".to_string()]) {
        server = server
            .bind((bind_address.clone(), 8080))
            .expect(format!("Should have been able to bind to address {}", bind_address).as_str());
    }
    server.run().await
}