feat(web): add users active search

otter/src/server/web/users.rs

@@ -4,6 +4,7 @@ use axum::{
     http::HeaderMap,
     routing::{delete, get},
 };
+use serde::Deserialize;
 
 use crate::{
     server::{
@@ -22,24 +23,46 @@ pub fn router(ctx: Context) -> Router<Context> {
         ))
 }
 
-pub async fn get_users(
+#[derive(Deserialize, Clone)]
+struct UserFilter {
+    username: Option<String>,
+}
+
+impl From<UserFilter> for gpodder::UserFilter {
+    fn from(value: UserFilter) -> Self {
+        Self {
+            username: value.username,
+        }
+    }
+}
+
+impl ToQuery for UserFilter {
+    fn to_query(self) -> crate::web::Query {
+        crate::web::Query::default().opt_parameter("username", self.username)
+    }
+}
+
+async fn get_users(
     State(ctx): State<Context>,
     headers: HeaderMap,
     Extension(session): Extension<gpodder::Session>,
     Query(page): Query<super::Pagination>,
+    Query(filter): Query<UserFilter>,
 ) -> AppResult<TemplateResponse<Page<View>>> {
     let next_page = page.next_page();
+    let filter_clone = filter.clone();
+
     let user_id = session.user.id;
     let users = tokio::task::spawn_blocking(move || {
         ctx.store
             .admin(&session.user)?
-            .paginated_users(page.into(), &gpodder::UserFilter::default())
+            .paginated_users(page.into(), &filter.into())
     })
     .await
     .unwrap()?;
 
-    let next_page_query =
-        (users.len() == next_page.per_page as usize).then_some(next_page.to_query());
+    let next_page_query = (users.len() == next_page.per_page as usize)
+        .then_some(next_page.to_query().join(filter_clone));
 
     Ok(View::Users(users, user_id, next_page_query)
         .page(&headers)

otter/src/web/query.rs

@@ -23,6 +23,15 @@ impl Query {
 
         self
     }
+
+    /// Convenience method for adding possibly empty parameter values from options
+    pub fn opt_parameter(self, key: impl ToString, value: Option<impl ToString>) -> Self {
+        if let Some(value) = value {
+            self.parameter(key, value)
+        } else {
+            self
+        }
+    }
 }
 
 /// Allows objects to be converted into queries

otter/src/web/templates/views/users.html

@@ -1,15 +1,24 @@
 <h1>Users</h1>
 
-<table>
+<input 
+    type="text" id="username" name="username"
+    hx-get="/users"
+    hx-target="#users > tbody"
+    hx-swap="innerHTML"
+    hx-select="table > tbody > tr"
+    hx-trigger="input changed delay:500ms"
+    placeholder="Search..."
+/>
+<table id="users">
     <thead>
         <th>Username</th>
     </thead>
     <tbody>
-        {% for user in users %}
+        {%- for user in users %}
         <tr>
             <th>{{ user.username }}</th>
         </tr>
-        {% endfor %}
+        {% endfor -%}
 
         {%- if next_page_query %}
         <tr