add: server stats page

crates/app/src/routes/pages/mod.rs

@@ -56,6 +56,7 @@ pub fn routes() -> Router {
             "/mod_panel/profile/{id}/warnings",
             get(mod_panel::manage_profile_warnings_request),
         )
+        .route("/mod_panel/stats", get(mod_panel::stats_request))
         // auth
         .route("/auth/register", get(auth::register_request))
         .route("/auth/login", get(auth::login_request))

crates/app/src/routes/pages/mod_panel.rs

@@ -7,7 +7,10 @@ use axum::{
 };
 use axum_extra::extract::CookieJar;
 use serde::Deserialize;
-use tetratto_core::model::{Error, permissions::FinePermission, reactions::AssetType};
+use tetratto_core::{
+    cache::Cache,
+    model::{permissions::FinePermission, reactions::AssetType, Error},
+};
 
 /// `/mod_panel/audit_log`
 pub async fn audit_log_request(
@@ -232,3 +235,51 @@ pub async fn manage_profile_warnings_request(
     // return
     Ok(Html(data.1.render("mod/warnings.html", &context).unwrap()))
 }
+
+/// `/mod_panel/stats`
+pub async fn stats_request(jar: CookieJar, Extension(data): Extension<State>) -> impl IntoResponse {
+    let data = data.read().await;
+    let user = match get_user_from_token!(jar, data.0) {
+        Some(ua) => ua,
+        None => {
+            return Err(Html(
+                render_error(Error::NotAllowed, &jar, &data, &None).await,
+            ));
+        }
+    };
+
+    if !user.permissions.check(FinePermission::VIEW_AUDIT_LOG) {
+        return Err(Html(
+            render_error(Error::NotAllowed, &jar, &data, &None).await,
+        ));
+    }
+
+    let lang = get_lang!(jar, data.0);
+    let mut context = initial_context(&data.0.0, lang, &Some(user)).await;
+
+    context.insert(
+        "active_users_chats",
+        &data
+            .0
+            .2
+            .get("atto.active_connections:chats".to_string())
+            .await
+            .unwrap_or("0".to_string())
+            .parse::<i64>()
+            .unwrap(),
+    );
+    context.insert(
+        "active_users",
+        &data
+            .0
+            .2
+            .get("atto.active_connections:users".to_string())
+            .await
+            .unwrap_or("0".to_string())
+            .parse::<i64>()
+            .unwrap(),
+    );
+
+    // return
+    Ok(Html(data.1.render("mod/stats.html", &context).unwrap()))
+}