use dioxus::prelude::*;
use polymodel_api::space_polymodel::library;

#[component]
pub(crate) fn AuthorByline(actor: library::Actor, class: String) -> Element {
    let href = profile_href(&actor);
    let display_name = clean_text(actor.display_name.as_ref().map(AsRef::as_ref));
    let handle = actor.handle.as_ref();

    rsx! {
        p { class,
            a { class: "author-byline-link", href,
                if let Some(display_name) = display_name {
                    span { class: "author-byline-name", "{display_name}" }
                    span { class: "author-byline-handle author-byline-handle-secondary", " @{handle}" }
                } else {
                    span { class: "author-byline-handle", "@{handle}" }
                }
            }
        }
    }
}

pub(crate) fn profile_href(actor: &library::Actor) -> String {
    let handle = actor.handle.as_ref();
    if !handle.is_empty() {
        format!("/profile/{handle}")
    } else {
        format!("/profile/{}", actor.did.as_ref())
    }
}

fn clean_text(value: Option<&str>) -> Option<&str> {
    value.map(str::trim).filter(|value| !value.is_empty())
}

#[cfg(test)]
mod tests {
    use jacquard_common::types::string::{Did, Handle};

    use super::*;

    fn fixture_actor(did: &str, handle: &str) -> library::Actor {
        library::Actor {
            avatar: None,
            description: None,
            did: Did::new_owned(did).expect("fixture DID is valid"),
            display_name: Some("Maker Name".into()),
            follower_count: None,
            following_count: None,
            handle: Handle::new_owned(handle).expect("fixture handle is valid"),
            pronouns: None,
            thing_count: None,
            viewer: None,
            extra_data: None,
        }
    }

    #[test]
    fn profile_href_prefers_handle() {
        let actor = fixture_actor("did:plc:alice", "alice.test");
        assert_eq!(profile_href(&actor), "/profile/alice.test");
    }
}