avatar fixes and implementation to edit

crates/chattyness-user-ui/src/api/avatars.rs

@@ -1,13 +1,13 @@
 //! Avatar API handlers for user UI.
 //!
-//! Handles avatar data retrieval.
+//! Handles avatar data retrieval and slot updates.
 //! Note: Emotion switching is handled via WebSocket.
 
 use axum::extract::Path;
 use axum::Json;
 
 use chattyness_db::{
-    models::AvatarWithPaths,
+    models::{AssignSlotRequest, AvatarWithPaths, ClearSlotRequest},
     queries::{avatars, realms},
 };
 use chattyness_error::AppError;
@@ -40,3 +40,76 @@ pub async fn get_avatar(
 
     Ok(Json(avatar))
 }
+
+/// Assign an inventory item to an avatar slot.
+///
+/// PUT /api/realms/{slug}/avatar/slot
+///
+/// Assigns the specified inventory item to the given layer and position
+/// in the user's active avatar.
+pub async fn assign_slot(
+    rls_conn: RlsConn,
+    AuthUser(user): AuthUser,
+    Path(slug): Path<String>,
+    Json(req): Json<AssignSlotRequest>,
+) -> Result<Json<AvatarWithPaths>, AppError> {
+    req.validate()?;
+
+    let mut conn = rls_conn.acquire().await;
+
+    // Get realm
+    let realm = realms::get_realm_by_slug(&mut *conn, &slug)
+        .await?
+        .ok_or_else(|| AppError::NotFound(format!("Realm '{}' not found", slug)))?;
+
+    // Update the slot
+    let column_name = req.column_name();
+    avatars::update_avatar_slot(
+        &mut *conn,
+        user.id,
+        realm.id,
+        &column_name,
+        Some(req.inventory_item_id),
+    )
+    .await?;
+
+    // Return updated avatar
+    let avatar = avatars::get_avatar_with_paths_conn(&mut *conn, user.id, realm.id)
+        .await?
+        .unwrap_or_default();
+
+    Ok(Json(avatar))
+}
+
+/// Clear an avatar slot.
+///
+/// DELETE /api/realms/{slug}/avatar/slot
+///
+/// Removes any inventory item from the given layer and position
+/// in the user's active avatar.
+pub async fn clear_slot(
+    rls_conn: RlsConn,
+    AuthUser(user): AuthUser,
+    Path(slug): Path<String>,
+    Json(req): Json<ClearSlotRequest>,
+) -> Result<Json<AvatarWithPaths>, AppError> {
+    req.validate()?;
+
+    let mut conn = rls_conn.acquire().await;
+
+    // Get realm
+    let realm = realms::get_realm_by_slug(&mut *conn, &slug)
+        .await?
+        .ok_or_else(|| AppError::NotFound(format!("Realm '{}' not found", slug)))?;
+
+    // Clear the slot
+    let column_name = req.column_name();
+    avatars::update_avatar_slot(&mut *conn, user.id, realm.id, &column_name, None).await?;
+
+    // Return updated avatar
+    let avatar = avatars::get_avatar_with_paths_conn(&mut *conn, user.id, realm.id)
+        .await?
+        .unwrap_or_default();
+
+    Ok(Json(avatar))
+}