add global item stat route

src/main.rs

@@ -91,7 +91,8 @@ async fn rocket() -> _ {
                 routes::flow::continue_flow_route,
                 routes::flow::create_flow_route,
                 routes::item::move_transaction_route,
-                routes::item::variant_price_latest_by_origin
+                routes::item::variant_price_latest_by_origin,
+                routes::item::item_stat_route
             ],
         )
         .manage(itemdb)

src/routes/item/mod.rs

@@ -41,6 +41,33 @@ pub fn get_items_route(itemdb: &State<ItemDB>, t: Token, c: &State<Config>) -> F
     Ok(json!({"items": items}))
 }
 
+#[get("/items/stat")]
+pub async fn item_stat_route(itemdb: &State<ItemDB>, t: Token, c: &State<Config>) -> FallibleApiResponse {
+    check_auth!(t, c);
+
+    let items = itemdb.items();
+    let item_count = items.len();
+    let mut transaction_count = 0;
+    let mut total_price = 0.0;
+
+    for item in items {
+        for var in itemdb.get_item(&item).unwrap().variants.keys() {
+            let item_var = itemdb.get_item(&item).unwrap().variant(var).unwrap();
+            for t in item_var.inventory().await {
+                transaction_count += 1;
+                total_price += t.price.value;
+            }
+        }
+    }
+
+
+    Ok(json!({
+        "item_count": item_count,
+        "total_transactions": transaction_count,
+        "total_price": total_price
+    }))
+}
+
 /// Return an API Response for an `Item`
 #[get("/item/<item_id>")]
 pub fn item_route(