From cc8aefd280f0c0064345bc98312e1ad94f20c5b2 Mon Sep 17 00:00:00 2001
From: alkeicam <maciej.grula@gmail.com>
Date: Wed, 30 Apr 2025 11:56:48 +0200
Subject: [PATCH 1/2] adding capability to clone cache items when retrieving
 from cache.

---
 packages/storage-memory/src/index.ts        | 17 +++++++++++++++--
 packages/storage-memory/src/memory-types.ts |  3 +++
 2 files changed, 18 insertions(+), 2 deletions(-)
 create mode 100644 packages/storage-memory/src/memory-types.ts

diff --git a/packages/storage-memory/src/index.ts b/packages/storage-memory/src/index.ts
index 00a0b1d..ed57370 100644
--- a/packages/storage-memory/src/index.ts
+++ b/packages/storage-memory/src/index.ts
@@ -1,12 +1,25 @@
 import { ICacheItem, IStorage } from "node-ts-cache"
+import { IMemoryCacheOptions } from "./memory-types"
+export * from "./memory-types"
 
 export class MemoryStorage implements IStorage {
     private memCache: any = {}
+    private shouldClone: boolean = false; // by default no cloning (default behaviour)
 
-    constructor() {}
+    constructor(options?:IMemoryCacheOptions) {
+        if(options){
+            this.shouldClone = options.clone
+        }
+    }
 
     public async getItem(key: string): Promise<ICacheItem | undefined> {
-        return this.memCache[key]
+        let response;
+        if(this.shouldClone){
+            response = JSON.parse(JSON.stringify(this.memCache[key]));
+        }else{
+            response = this.memCache[key]
+        }
+        return response;
     }
 
     public async setItem(key: string, content: any): Promise<void> {
diff --git a/packages/storage-memory/src/memory-types.ts b/packages/storage-memory/src/memory-types.ts
new file mode 100644
index 0000000..45552e4
--- /dev/null
+++ b/packages/storage-memory/src/memory-types.ts
@@ -0,0 +1,3 @@
+export interface IMemoryCacheOptions {
+    clone: boolean // when set to true data returned from cache will be deep copied (deep copy will be returned)
+}
\ No newline at end of file

From 8c3bad67ab7b3a62dc69f79970cc2a5e4b534054 Mon Sep 17 00:00:00 2001
From: alkeicam <maciej.grula@gmail.com>
Date: Thu, 1 May 2025 08:25:28 +0200
Subject: [PATCH 2/2] Null/Undefined handling

Making sure that if there is no cache item clone is not performed.
---
 packages/storage-memory/src/index.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/packages/storage-memory/src/index.ts b/packages/storage-memory/src/index.ts
index ed57370..4a1567f 100644
--- a/packages/storage-memory/src/index.ts
+++ b/packages/storage-memory/src/index.ts
@@ -15,7 +15,8 @@ export class MemoryStorage implements IStorage {
     public async getItem(key: string): Promise<ICacheItem | undefined> {
         let response;
         if(this.shouldClone){
-            response = JSON.parse(JSON.stringify(this.memCache[key]));
+            const cacheData = this.memCache[key];
+            response = cacheData?JSON.parse(JSON.stringify(this.memCache[key])):cacheData;
         }else{
             response = this.memCache[key]
         }