First Commit - Portfolio Page

src/utils/cache.ts

@@ -0,0 +1,50 @@
+type CacheItem<T> = {
+  value: T;
+  timestamp: number;
+  ttl: number;
+};
+
+class Cache {
+  private storage: Map<string, CacheItem<any>>;
+  private readonly defaultTTL: number;
+
+  constructor(defaultTTL = 5 * 60 * 1000) { // 5 minutes default TTL
+    this.storage = new Map();
+    this.defaultTTL = defaultTTL;
+  }
+
+  set<T>(key: string, value: T, ttl = this.defaultTTL): void {
+    this.storage.set(key, {
+      value,
+      timestamp: Date.now(),
+      ttl
+    });
+  }
+
+  get<T>(key: string): T | null {
+    const item = this.storage.get(key);
+    
+    if (!item) return null;
+    
+    if (Date.now() > item.timestamp + item.ttl) {
+      this.storage.delete(key);
+      return null;
+    }
+    
+    return item.value;
+  }
+
+  has(key: string): boolean {
+    return this.get(key) !== null;
+  }
+
+  delete(key: string): void {
+    this.storage.delete(key);
+  }
+
+  clear(): void {
+    this.storage.clear();
+  }
+}
+
+export const cache = new Cache();