refactor(utilities/cache): maxSize for in-memory

Author: MM25Zamanian

packages/utilities/src/cache-pattern/in-memory.simple.ts

@@ -0,0 +1,42 @@
+export class InMemorySimpleCache<T> {
+  constructor(maxSize?: number) {
+    if (maxSize && maxSize > 0) {
+      this.maxSize = maxSize;
+    }
+  }
+
+  protected memory = new Map<string, T>();
+  protected maxSize = -1;
+
+  get(key: string): T | undefined {
+    return this.memory.get(key);
+  }
+
+  set(key: string, value: T): void {
+    this.memory.set(key, value);
+
+    if (this.maxSize > 0 && this.size >= this.maxSize) {
+      const firstKey = this.memory.keys().next();
+
+      if (!firstKey.done) {
+        this.delete(firstKey.value);
+      }
+    }
+  }
+
+  delete(key: string): boolean {
+    return this.memory.delete(key);
+  }
+
+  clearAll(): void {
+    this.memory.clear();
+  }
+
+  has(key: string): boolean {
+    return this.memory.has(key);
+  }
+
+  get size(): number {
+    return this.memory.size;
+  }
+}