#![feature(plugin, custom_derive)]
#![plugin(rocket_codegen)]

extern crate rocket;

use rocket::request::Form;

#[derive(FromForm)]
struct Simple {
    value: String
}

#[post("/", data = "<form>")]
fn index(form: Form<Simple>) -> String {
    form.into_inner().value
}

#[cfg(feature = "testing")]
mod tests {
    use rocket;
    use rocket::config::{Environment, Config, Limits};
    use rocket::testing::MockRequest;
    use rocket::http::Method::*;
    use rocket::http::{Status, ContentType};

    fn rocket_with_forms_limit(limit: u64) -> rocket::Rocket {
        let config = Config::build(Environment::Development)
            .limits(Limits::default().add("forms", limit))
            .unwrap();

        rocket::custom(config, true).mount("/", routes![super::index])
    }

    // FIXME: Config is global (it's the only global thing). Each of these tests
    // will run in different threads in the same process, so the config used by
    // all of the tests will be indentical: whichever of these gets executed
    // first. As such, only one test will pass; the rest will fail. Make config
    // _not_ global so we can actually do these tests.

    // #[test]
    // fn large_enough() {
    //     let rocket = rocket_with_forms_limit(128);
    //     let mut req = MockRequest::new(Post, "/")
    //         .body("value=Hello+world")
    //         .header(ContentType::Form);

    //     let mut response = req.dispatch_with(&rocket);
    //     assert_eq!(response.body_string(), Some("Hello world".into()));
    // }

    // #[test]
    // fn just_large_enough() {
    //     let rocket = rocket_with_forms_limit(17);
    //     let mut req = MockRequest::new(Post, "/")
    //         .body("value=Hello+world")
    //         .header(ContentType::Form);

    //     let mut response = req.dispatch_with(&rocket);
    //     assert_eq!(response.body_string(), Some("Hello world".into()));
    // }

    // #[test]
    // fn much_too_small() {
    //     let rocket = rocket_with_forms_limit(4);
    //     let mut req = MockRequest::new(Post, "/")
    //         .body("value=Hello+world")
    //         .header(ContentType::Form);

    //     let response = req.dispatch_with(&rocket);
    //     assert_eq!(response.status(), Status::BadRequest);
    // }

    #[test]
    fn contracted() {
        let rocket = rocket_with_forms_limit(10);
        let mut req = MockRequest::new(Post, "/")
            .body("value=Hello+world")
            .header(ContentType::Form);

        let mut response = req.dispatch_with(&rocket);
        assert_eq!(response.body_string(), Some("Hell".into()));
    }
}