use std::error::Error;

use rocket::http::Method;
use rocket::{get, routes};
use rocket_cors::{AllowedHeaders, AllowedOrigins};

#[get("/")]
fn cors<'a>() -> &'a str {
    "Hello CORS"
}

#[rocket::main]
async fn main() -> Result<(), Box<dyn Error>> {
    let allowed_origins = AllowedOrigins::some_exact(&["https://www.acme.com"]);

    // You can also deserialize this
    let cors = rocket_cors::CorsOptions {
        allowed_origins,
        allowed_methods: vec![Method::Get].into_iter().map(From::from).collect(),
        allowed_headers: AllowedHeaders::some(&["Authorization", "Accept"]),
        allow_credentials: true,
        ..Default::default()
    }
    .to_cors()?;

    rocket::build()
        .mount("/", routes![cors])
        .attach(cors)
        .launch()
        .await?;

    Ok(())
}