import { describe, expect, it, jest } from "@jest/globals";
import SuperSimpleQueueHelper from "../src/service/infrastructure/SuperSimpleQueue/SuperSimpleQueueHelper.ts";
import type { Monitor } from "../src/types/monitor.ts";

const createLogger = () => ({ info: jest.fn(), error: jest.fn(), warn: jest.fn() });

const createHelper = (overrides?: Partial<ConstructorParameters<typeof SuperSimpleQueueHelper>[0]>) => {
	const maintenanceWindowModule = {
		getMaintenanceWindowsByMonitorId: jest.fn().mockResolvedValue([]),
	};
	const helper = new SuperSimpleQueueHelper({
		db: { maintenanceWindowModule },
		logger: createLogger(),
		networkService: { requestStatus: jest.fn() },
		statusService: { updateStatus: jest.fn() },
		notificationService: { handleNotifications: jest.fn().mockResolvedValue(undefined) },
		...overrides,
	});
	return { helper, maintenanceWindowModule };
};

describe("SuperSimpleQueueHelper", () => {
	describe("getMonitorJob", () => {
		it("skips execution when monitor is in maintenance window", async () => {
			const { helper } = createHelper();
			const spy = jest.spyOn(helper, "isInMaintenanceWindow").mockResolvedValue(true);
			const job = helper.getMonitorJob();
			await job({ id: "m1", teamId: "team", interval: 60000 } as Monitor);
			expect(helper["networkService"].requestStatus).not.toHaveBeenCalled();
			expect(helper["logger"].info).toHaveBeenCalledWith(
				expect.objectContaining({ message: expect.stringContaining("Monitor m1 is in maintenance window") })
			);
			spy.mockRestore();
		});

		it("processes monitor status and notifications when active", async () => {
			const networkResponse = { monitor: { id: "m1" }, status: true };
			const updatedMonitor = { id: "m1", status: true };
			const { helper } = createHelper({
				networkService: { requestStatus: jest.fn().mockResolvedValue(networkResponse) },
				statusService: {
					updateStatus: jest.fn().mockResolvedValue({ monitor: updatedMonitor, statusChanged: true, prevStatus: false }),
				},
				notificationService: { handleNotifications: jest.fn().mockResolvedValue(undefined) },
			});
			jest.spyOn(helper, "isInMaintenanceWindow").mockResolvedValue(false);
			const job = helper.getMonitorJob();
			const monitor = { id: "m1", teamId: "team" } as Monitor;
			await job(monitor);
			expect(helper["networkService"].requestStatus).toHaveBeenCalledWith(monitor);
			expect(helper["statusService"].updateStatus).toHaveBeenCalledWith(networkResponse);
			expect(helper["notificationService"].handleNotifications).toHaveBeenCalledWith(
				expect.objectContaining({ monitor: updatedMonitor, statusChanged: true, prevStatus: false })
			);
		});

		it("throws when monitor id is missing", async () => {
			const { helper } = createHelper();
			const job = helper.getMonitorJob();
			await expect(job({} as Monitor)).rejects.toThrow("No monitor id");
			expect(helper["logger"].warn).toHaveBeenCalled();
		});
	});

	describe("isInMaintenanceWindow", () => {
		it("returns true when an active window spans now", async () => {
			const now = new Date();
			const { helper, maintenanceWindowModule } = createHelper();
			maintenanceWindowModule.getMaintenanceWindowsByMonitorId.mockResolvedValue([
				{
					active: true,
					start: new Date(now.getTime() - 1000).toISOString(),
					end: new Date(now.getTime() + 1000).toISOString(),
					repeat: 0,
				},
			]);
			await expect(helper.isInMaintenanceWindow("m1", "team")).resolves.toBe(true);
		});

		it("returns true when repeat interval advances window into current time", async () => {
			const now = Date.now();
			const { helper, maintenanceWindowModule } = createHelper();
			maintenanceWindowModule.getMaintenanceWindowsByMonitorId.mockResolvedValue([
				{
					active: true,
					start: new Date(now - 7200000).toISOString(),
					end: new Date(now - 6600000).toISOString(),
					repeat: 3600000,
				},
			]);
			await expect(helper.isInMaintenanceWindow("m1", "team")).resolves.toBe(true);
		});

		it("returns false when no active windows exist", async () => {
			const { helper } = createHelper();
			await expect(helper.isInMaintenanceWindow("m1", "team")).resolves.toBe(false);
		});
	});
});