use axum::{extract::State, response::IntoResponse, routing::get, Router};
use axum_extra::extract::cookie::{Cookie, CookieJar};
use clap::Parser;
use morethantext::{MoreThanText, Session};

const LOCALHOST: &str = "127.0.0.1";
const SESSION_KEY: &str = "sessionid";

#[derive(Parser, Debug)]
#[command(version, about, long_about = None)]
struct Args {
    /// Post used
    #[arg(short, long, default_value_t = 3000)]
    port: u16,
    /// IP used
    #[arg(short, long, default_value_t = LOCALHOST.to_string())]
    address: String,
    /// cluster host
    #[arg(short, long, num_args(0..))]
    cluster: Option<String>,
}

#[cfg(test)]
mod http_session {
    #[tokio::test]
    async fn my_test() {
        assert!(true);
    }
}

#[tokio::main]
async fn main() {
    let args = Args::parse();
    let addr = format!("{}:{}", args.address, args.port);
    let state = MoreThanText::new();
    let app = Router::new().route("/", get(handler)).with_state(state);
    let listener = tokio::net::TcpListener::bind(&addr).await.unwrap();
    axum::serve(listener, app.into_make_service())
        .await
        .unwrap();
}

async fn handler(jar: CookieJar, state: State<MoreThanText>) -> impl IntoResponse {
    let cookies: CookieJar;
    let sid: Option<String>;
    match jar.get(SESSION_KEY) {
        Some(cookie) => sid = Some(cookie.value().to_string()),
        None => sid = None,
    }
    match state.get_session(sid) {
        Session::Ok => cookies = jar,
        Session::New(id) => {
            let cookie = Cookie::build((SESSION_KEY, id.clone())).domain("example.com");
            cookies = jar.add(cookie);
        }
    }
    (cookies, "Something goes here.")
}