add latest price route

src/routes/item/stat.rs

@@ -28,5 +28,29 @@ pub async fn variant_price_history_by_origin(
         .variant(variant_id)
         .ok_or_else(variant_does_not_exist_error)?;
 
-    Ok(json!(variant.price_history_by_origin(origin).await))
+    Ok(json!(variant.price_history_by_origin(origin, None).await))
+}
+
+#[get("/item/<item_id>/<variant_id>/price_latest?<origin>")]
+pub async fn variant_price_latest_by_origin(
+    item_id: &str,
+    variant_id: &str,
+    itemdb: &State<ItemDB>,
+    t: Token,
+    c: &State<Config>,
+    origin: &str,
+) -> FallibleApiResponse {
+    check_auth!(t, c);
+
+    let variant = itemdb
+        .get_item(item_id)
+        .ok_or_else(item_does_not_exist_error)?
+        .variant(variant_id)
+        .ok_or_else(variant_does_not_exist_error)?;
+
+    Ok(json!(variant
+        .price_history_by_origin(origin, Some(1))
+        .await
+        .first()
+        .unwrap()))
 }