use poem::{handler, listener::TcpListener, web::Path, Route, Server};

#[derive(clap::Parser)]
pub struct Options {
    #[clap(long, env = "HOST", default_value = "127.0.0.1")]
    /// Set host
    host: String,
    #[clap(short = 'p', long, env = "PORT", default_value = "8080")]
    /// Set listening port
    port: String,
}

impl Options {
    fn host(&self) -> String {
        self.host.clone()
    }
    fn port(&self) -> String {
        self.port.clone()
    }
    fn hostport(&self) -> String {
        format!("{}:{}", self.host(), self.port())
    }
    fn url(&self) -> String {
        format!("http://{}", self.hostport())
    }
    fn addr(&self) -> std::net::SocketAddr {
        self.hostport().parse().unwrap()
    }
    pub async fn run(&mut self) -> Result<(), anyhow::Error> {
        let app = Route::new()
            .at("/hello/:id", hello_id)
            .at("/hello/:first/:second", hello_2);
        dbg!(self.url());
        Ok(Server::new(TcpListener::bind(self.addr()))
            .name("hello")
            .run(app)
            .await?)
    }
}

#[handler]
pub fn hello_id(Path(name): Path<String>) -> String {
    format!("hello, {}", name)
}

#[handler]
pub fn hello_2(Path((one, two)): Path<(String, String)>) -> String {
    format!("hello, {} {}", one, two)
}