fixed timeout issue

implemented timeoutManager, a more efficient solution for managing timeouts in RAM memory. this resolves the problem of lingering timeouts in the server, providing faster removal of old timeouts and improving overall performance.

backend/tests/models/timeoutManager.test.js

@@ -0,0 +1,50 @@
+const chai = require('chai');
+const sinon = require('sinon');
+const timeoutManager = require('../../models/timeoutManager');
+
+const { expect } = chai;
+
+describe('timeoutManager', () => {
+    beforeEach(() => {
+        timeoutManager.timeouts.clear();
+        sinon.useFakeTimers({ shouldClearNativeTimers: true });
+    });
+
+    afterEach(() => {
+        sinon.restore();
+    });
+
+    it('should add a timeout to the map', () => {
+        timeoutManager.add('room1', 1);
+        expect(timeoutManager.timeouts.size).to.equal(1);
+    });
+
+    it('should get a timeout from the map', () => {
+        timeoutManager.add('room1', 1);
+        const timeoutId = timeoutManager.get('room1');
+        expect(timeoutId).to.equal(1);
+    });
+
+    it('should clear a timeout from the map', () => {
+        timeoutManager.add('room1', 1);
+        timeoutManager.clear('room1');
+        expect(timeoutManager.timeouts.size).to.equal(0);
+    });
+
+    it('should set a new timeout', () => {
+        const timeoutFunction = sinon.spy();
+        timeoutManager.set(timeoutFunction, 100, 'room1');
+        expect(timeoutManager.timeouts.size).to.equal(1);
+        sinon.clock.tick(101);
+        sinon.assert.calledOnce(timeoutFunction);
+    });
+
+    it('should not call the timeout function if cleared', () => {
+        const timeoutFunction = sinon.spy();
+        timeoutManager.set(timeoutFunction, 100, 'room1');
+        timeoutManager.clear('room1');
+        sinon.clock.tick(101);
+        sinon.assert.notCalled(timeoutFunction);
+        expect(timeoutManager.timeouts.size).to.equal(0);
+    });
+});