//! Admin dashboard (HTML home + JSON stats).

use axum_extra::extract::cookie::CookieJar;
use loco_rs::prelude::*;
use sea_orm::{EntityTrait, PaginatorTrait};
use serde::Serialize;
use serde_json::json;

use crate::{controllers::i18n::current_lang, models::_entities, shared::guard};

#[derive(Debug, Serialize)]
struct DashboardResponse {
    users: u64,
    products: u64,
    categories: u64,
    orders: u64,
    audit_logs: u64,
}

/// JSON dashboard stats, served under `/api/admin`.
#[debug_handler]
async fn dashboard_json(auth: auth::JWT, State(ctx): State<AppContext>) -> Result<Response> {
    guard::current_admin(auth, &ctx).await?;

    format::json(DashboardResponse {
        users: _entities::users::Entity::find().count(&ctx.db).await?,
        products: _entities::products::Entity::find().count(&ctx.db).await?,
        categories: _entities::categories::Entity::find().count(&ctx.db).await?,
        orders: _entities::orders::Entity::find().count(&ctx.db).await?,
        audit_logs: _entities::audit_logs::Entity::find().count(&ctx.db).await?,
    })
}

/// HTML admin home page.
#[debug_handler]
async fn dashboard_page(
    auth: auth::JWT,
    jar: CookieJar,
    ViewEngine(v): ViewEngine<TeraView>,
    State(ctx): State<AppContext>,
) -> Result<Response> {
    let admin_user = guard::current_admin(auth, &ctx).await?;
    format::view(
        &v,
        "admin/index.html",
        json!({ "admin": admin_user, "lang": current_lang(&jar) }),
    )
}

pub fn routes() -> Routes {
    Routes::new()
        .add("/admin/dashboard", get(dashboard_page))
        .add("/api/admin/dashboard", get(dashboard_json))
}