use leptos::{
    IntoView, component,
    error::Error,
    prelude::{Children, IntoAny},
    view,
};
use leptos_router::{NavigateOptions, hooks::use_navigate};

use crate::{
    api::{can_be_provisioned_wrapped, is_logged_in_wrapped},
    components::async_fetch::{AsyncFetch, AsyncResource},
};

#[component]
pub fn LoginWall(
    back: impl Fn() -> String + Send + Sync + 'static,
    children: Children,
) -> impl IntoView {
    view! {
        {
            AsyncFetch! {
                @map_error_in_producer
                from_resource = AsyncResource!(
                    () -> Result<(bool, bool), Error> {
                        Ok((can_be_provisioned_wrapped().await?, is_logged_in_wrapped().await?))
                    }
                ),
                producer = |(can_be_provisioned, is_logged_in)| {
                    if is_logged_in {
                        children()
                    } else if can_be_provisioned {
                        use_navigate()(format!("/provision/?back={}", back()).as_str(), NavigateOptions::default());
                        ().into_any()
                    } else {
                        use_navigate()(format!("/login/?back={}", back()).as_str(), NavigateOptions::default());
                        ().into_any()
                    }
                }
            }
        }
    }
}