feat: added a basic yet enough event manager

src/events/EventManager.ts

@@ -0,0 +1,52 @@
+/**
+ * an event handling system
+ *
+ * author: db123 at db
+ * creation: 25/4/2026
+ */
+
+export class EventManager {
+  private listeners: Array<{
+    element: HTMLElement;
+    event: string;
+    handler: Function;
+  }> = [];
+
+  add(element: HTMLElement, event: string, handler: Function): void {
+    this.listeners.push({ element, event, handler });
+    element.addEventListener(event, handler as EventListener);
+  }
+
+  remove(element: HTMLElement, event: string, handler: Function): void {
+    const index = this.listeners.findIndex(
+      (listener: {
+        element: HTMLElement;
+        event: string;
+        handler: Function;
+      }): boolean =>
+        listener.element === element &&
+        listener.event === event &&
+        listener.handler === handler,
+    );
+    if (index !== -1) {
+      this.listeners.splice(index, 1);
+    }
+    element.removeEventListener(event, handler as EventListener);
+  }
+
+  removeAll(): void {
+    this.listeners.forEach(
+      (listener: {
+        element: HTMLElement;
+        event: string;
+        handler: Function;
+      }): void => {
+        listener.element.removeEventListener(
+          listener.event,
+          listener.handler as EventListener,
+        );
+      },
+    );
+    this.listeners = [];
+  }
+}

src/events/index.ts

@@ -0,0 +1 @@
+export { EventManager } from "./EventManager";