From 1a101bf3e5a4fd3637cebee4c0233588122ab1f4 Mon Sep 17 00:00:00 2001
From: Sainan <sainan@calamity.inc>
Date: Sat, 18 Jan 2025 16:27:13 +0100
Subject: [PATCH] chore: optimise creditsController ~37ms to ~5ms

---
 src/controllers/api/creditsController.ts | 2 +-
 src/services/inventoryService.ts         | 7 +++++--
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/controllers/api/creditsController.ts b/src/controllers/api/creditsController.ts
index 10ac10b3..c5dea4f7 100644
--- a/src/controllers/api/creditsController.ts
+++ b/src/controllers/api/creditsController.ts
@@ -6,7 +6,7 @@ import { getInventory } from "@/src/services/inventoryService";
 export const creditsController: RequestHandler = async (req, res) => {
     const accountId = await getAccountIdForRequest(req);
 
-    const inventory = await getInventory(accountId);
+    const inventory = await getInventory(accountId, "RegularCredits TradesRemaining PremiumCreditsFree PremiumCredits");
 
     const response = {
         RegularCredits: inventory.RegularCredits,
diff --git a/src/services/inventoryService.ts b/src/services/inventoryService.ts
index e7567772..c58a17df 100644
--- a/src/services/inventoryService.ts
+++ b/src/services/inventoryService.ts
@@ -96,8 +96,11 @@ export const combineInventoryChanges = (InventoryChanges: IInventoryChanges, del
     }
 };
 
-export const getInventory = async (accountOwnerId: string): Promise<TInventoryDatabaseDocument> => {
-    const inventory = await Inventory.findOne({ accountOwnerId: accountOwnerId });
+export const getInventory = async (
+    accountOwnerId: string,
+    projection: string | undefined = undefined
+): Promise<TInventoryDatabaseDocument> => {
+    const inventory = await Inventory.findOne({ accountOwnerId: accountOwnerId }, projection);
 
     if (!inventory) {
         throw new Error(`Didn't find an inventory for ${accountOwnerId}`);