add screen to view a barcode isolated

src/http.rs

@@ -134,6 +134,7 @@ pub fn build_router(state: AppState) -> Router {
             post(remove_meal_from_list),
         )
         .route("/rewards", get(rewards_page).post(create_rewards_card))
+        .route("/rewards/{card_id}", get(rewards_scan_page))
         .route("/rewards/{card_id}/delete", post(delete_rewards_card))
         .route("/lists/{list_id}/stream", get(list_stream))
         .route("/invite/{token}", get(invitation_page))
@@ -845,6 +846,22 @@ async fn rewards_page(
     )))
 }
 
+async fn rewards_scan_page(
+    State(state): State<AppState>,
+    user: CurrentUser,
+    Path(card_id): Path<i64>,
+) -> Result<Response, AppError> {
+    let card = state
+        .rewards_cards
+        .get_card(user.session.user.id, card_id)
+        .await?
+        .ok_or(AppError::NotFound)?;
+    Ok(html_response(views::rewards_scan_page(
+        &user.session.user,
+        &card,
+    )))
+}
+
 async fn create_rewards_card(
     State(state): State<AppState>,
     user: CurrentUser,