From 9768e30ac6e6104d71aa0e22244f82484540817c Mon Sep 17 00:00:00 2001
From: Sainan <sainan@calamity.inc>
Date: Wed, 19 Feb 2025 13:42:36 -0800
Subject: [PATCH] chore: enforce that account only owns one of 'singleton
 items' (#969)

Reviewed-on: https://onlyg.it/OpenWF/SpaceNinjaServer/pulls/969
---
 src/services/inventoryService.ts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/services/inventoryService.ts b/src/services/inventoryService.ts
index 65ccd2d0..de73a2ef 100644
--- a/src/services/inventoryService.ts
+++ b/src/services/inventoryService.ts
@@ -830,6 +830,9 @@ const addCrewShip = (
     typeName: string,
     inventoryChanges: IInventoryChanges = {}
 ): IInventoryChanges => {
+    if (inventory.CrewShips.length != 0) {
+        throw new Error("refusing to add CrewShip because account already has one");
+    }
     const index = inventory.CrewShips.push({ ItemType: typeName }) - 1;
     inventoryChanges.CrewShips ??= [];
     (inventoryChanges.CrewShips as object[]).push(inventory.CrewShips[index].toJSON());
@@ -841,6 +844,9 @@ const addCrewShipHarness = (
     typeName: string,
     inventoryChanges: IInventoryChanges = {}
 ): IInventoryChanges => {
+    if (inventory.CrewShips.length != 0) {
+        throw new Error("refusing to add CrewShipHarness because account already has one");
+    }
     const index = inventory.CrewShipHarnesses.push({ ItemType: typeName }) - 1;
     inventoryChanges.CrewShipHarnesses ??= [];
     (inventoryChanges.CrewShipHarnesses as object[]).push(inventory.CrewShipHarnesses[index].toJSON());