use axum::Json;
use axum::extract::{Query, State};
use jwt::extractor::AuthUser;
use serde::Deserialize;

use crate::error::UserResult;
use crate::features::UserService;
use crate::features::notifications::RecentMentionView;

#[derive(Deserialize, Default)]
pub struct RecentQuery {
    #[serde(default = "default_limit")]
    pub limit: usize,
}

fn default_limit() -> usize {
    20
}

#[utoipa::path(
    get,
    path = "/user/me/recent-mentions",
    tag = "user",
    params(("limit" = Option<usize>, Query, description = "Maximum items (default 20).")),
    responses(
        (status = 200, description = "Recent mentions for the caller.", body = Vec<RecentMentionView>),
    ),
    security(("bearer_auth" = [])),
)]
pub(crate) async fn handler(
    State(svc): State<UserService>,
    AuthUser { claims }: AuthUser,
    Query(q): Query<RecentQuery>,
) -> UserResult<Json<Vec<RecentMentionView>>> {
    Ok(Json(svc.list_recent_mentions(claims.sub, q.limit).await?))
}