use axum::{
    extract::Path,
    response::{Html, IntoResponse, Redirect},
    routing, Router,
};
use ramhorns::{Content, Template};
use tracing::info;

#[derive(Content)]
struct HomeContent {
    cargo_version: String,
}

#[tokio::main]
async fn main() {
    let app = Router::new()
        .route("/", routing::get(home))
        .route("/:url", routing::get(redirect));
    tracing_subscriber::fmt().init();

    info!("Starting server at http://localhost:3000");
    axum::Server::bind(&"0.0.0.0:3000".parse().unwrap())
        .serve(app.into_make_service())
        .await
        .unwrap();
}

async fn home() -> impl IntoResponse {
    let home_template = include_str!("../templates/home.html");
    let template = Template::new(home_template).unwrap();
    let content = HomeContent {
        cargo_version: env!("CARGO_PKG_VERSION").to_string(),
    };

    Html(template.render(&content))
}

async fn redirect(Path(url): Path<String>) -> impl IntoResponse {
    Redirect::permanent(&format!("https://crates.io/crates/{url}"))
}