import { NotificationsGateway } from "./notifications.gateway";
import { WsAuthService } from "./ws-auth.service";

const gateway = () => new NotificationsGateway({} as WsAuthService);

describe("NotificationsGateway", () => {
  it("skips emitNew rather than throwing when no WebSocket server is attached", () => {
    const g = gateway();
    expect(() => g.emitNew("user-1", { id: "n-1" } as never, 3)).not.toThrow();
  });

  it("skips emitUnreadCount rather than throwing when no WebSocket server is attached", () => {
    const g = gateway();
    expect(() => g.emitUnreadCount("user-1", 3)).not.toThrow();
  });

  it("pushes to the user's room once a server is attached", () => {
    const g = gateway();
    const emit = jest.fn();
    const to = jest.fn().mockReturnValue({ emit });
    (g as unknown as { server: { to: typeof to } }).server = { to };

    g.emitNew("user-1", { id: "n-1" } as never, 3);

    expect(to).toHaveBeenCalledWith("user:user-1");
    expect(emit).toHaveBeenCalledWith("notification:new", { id: "n-1" });
    expect(emit).toHaveBeenCalledWith("notification:unread-count", 3);
  });
});