import { describe, expect, it, jest } from "@jest/globals";
import { CheckProducer } from "../../../src/worker/worker.check-producer.ts";
import type { Monitor } from "../../../src/domain/monitors/monitor.type.ts";
import { createMockLogger } from "../../helpers/createMockLogger.ts";

const makeMonitor = (overrides?: Partial<Monitor>): Monitor =>
	({
		id: "m1",
		teamId: "team",
		type: "http",
		interval: 60000,
		status: "up",
		...overrides,
	}) as Monitor;

// A maintenance window straddling "now" — active per isWindowActive.
const activeWindow = () => {
	const now = Date.now();
	return { active: true, start: new Date(now - 1000).toISOString(), end: new Date(now + 1000).toISOString(), repeat: 0 };
};

const createProducer = (overrides?: Record<string, any>) => {
	const defaults = {
		logger: createMockLogger(),
		monitorsRepository: { updateById: jest.fn().mockResolvedValue({}), findDockerTlsKeyById: jest.fn().mockResolvedValue(null) },
		maintenanceWindowsRepository: { findByMonitorId: jest.fn().mockResolvedValue([]) },
		checkService: { toCheck: jest.fn().mockReturnValue({ id: "check-1" }) },
		networkService: { requestStatus: jest.fn().mockResolvedValue({ monitorId: "m1", status: true, code: 200, message: "OK" }) },
		proxyResolver: { resolve: jest.fn().mockResolvedValue(undefined) },
		buffer: { addToBuffer: jest.fn() },
		dockerLogsService: { buildDockerLogs: jest.fn().mockResolvedValue([]) },
		...overrides,
	};
	const producer = new CheckProducer(
		defaults.monitorsRepository as any,
		defaults.maintenanceWindowsRepository as any,
		defaults.checkService as any,
		defaults.networkService as any,
		defaults.proxyResolver as any,
		defaults.buffer as any,
		defaults.dockerLogsService as any,
		defaults.logger as any
	);
	return { producer, defaults };
};

describe("CheckProducer", () => {
	it("throws when monitor id is missing", async () => {
		const { producer } = createProducer();
		await expect(producer.produce({} as Monitor)).rejects.toThrow("No monitor id");
	});

	// ── maintenance gate ──────────────────────────────────────────────────────

	it("skips the check and flips status to 'maintenance' when in a maintenance window", async () => {
		const { producer, defaults } = createProducer({
			maintenanceWindowsRepository: { findByMonitorId: jest.fn().mockResolvedValue([activeWindow()]) },
		});

		const result = await producer.produce(makeMonitor({ status: "up" }));

		expect(result).toBeNull();
		expect(defaults.monitorsRepository.updateById).toHaveBeenCalledWith("m1", "team", { status: "maintenance", statusWindow: [] });
		expect(defaults.networkService.requestStatus).not.toHaveBeenCalled();
		expect(defaults.buffer.addToBuffer).not.toHaveBeenCalled();
	});

	it("does not re-write status when already in maintenance", async () => {
		const { producer, defaults } = createProducer({
			maintenanceWindowsRepository: { findByMonitorId: jest.fn().mockResolvedValue([activeWindow()]) },
		});

		const result = await producer.produce(makeMonitor({ status: "maintenance" }));

		expect(result).toBeNull();
		expect(defaults.monitorsRepository.updateById).not.toHaveBeenCalled();
	});

	it("proceeds with the check when the maintenance window is inactive", async () => {
		const { producer, defaults } = createProducer({
			maintenanceWindowsRepository: { findByMonitorId: jest.fn().mockResolvedValue([{ ...activeWindow(), active: false }]) },
		});

		await producer.produce(makeMonitor());

		expect(defaults.networkService.requestStatus).toHaveBeenCalled();
	});

	// ── proxy resolution ──────────────────────────────────────────────────────

	it("passes the resolved proxy url into requestStatus", async () => {
		const { producer, defaults } = createProducer({
			proxyResolver: { resolve: jest.fn().mockResolvedValue("http://proxy.example.com:8080") },
		});
		const monitor = makeMonitor();

		await producer.produce(monitor);

		expect(defaults.networkService.requestStatus).toHaveBeenCalledWith(monitor, { proxyUrl: "http://proxy.example.com:8080" });
	});

	it("still produces a check when the resolver returns undefined", async () => {
		const { producer, defaults } = createProducer();
		const monitor = makeMonitor();

		const result = await producer.produce(monitor);

		expect(defaults.networkService.requestStatus).toHaveBeenCalledWith(monitor, { proxyUrl: undefined });
		expect(result).toEqual({ status: expect.objectContaining({ monitorId: "m1" }), check: { id: "check-1" } });
	});

	// ── acquire / record ──────────────────────────────────────────────────────

	// ── docker tls key resolution ─────────────────────────────────────────────

	it("fetches the stored key for a docker monitor with a key set and passes it in the context", async () => {
		const { producer, defaults } = createProducer({
			monitorsRepository: { updateById: jest.fn(), findDockerTlsKeyById: jest.fn().mockResolvedValue("v1.abc123.iv.tag.data") },
		});
		const monitor = makeMonitor({ type: "docker", url: "tcp://host", dockerTlsKeySet: true });

		await producer.produce(monitor);

		expect(defaults.monitorsRepository.findDockerTlsKeyById).toHaveBeenCalledWith("m1");
		expect(defaults.networkService.requestStatus).toHaveBeenCalledWith(monitor, { proxyUrl: undefined, dockerTlsKey: "v1.abc123.iv.tag.data" });
	});

	it("does not fetch a key for a docker monitor without one set", async () => {
		const { producer, defaults } = createProducer();
		const monitor = makeMonitor({ type: "docker", url: "unix:///var/run/docker.sock", dockerTlsKeySet: false });

		await producer.produce(monitor);

		expect(defaults.monitorsRepository.findDockerTlsKeyById).not.toHaveBeenCalled();
		expect(defaults.networkService.requestStatus).toHaveBeenCalledWith(monitor, { proxyUrl: undefined, dockerTlsKey: undefined });
	});

	it("does not fetch a key for non-docker monitors even if the flag is set", async () => {
		const { producer, defaults } = createProducer();

		await producer.produce(makeMonitor({ type: "http", dockerTlsKeySet: true }));

		expect(defaults.monitorsRepository.findDockerTlsKeyById).not.toHaveBeenCalled();
	});

	it("passes undefined when the flag is set but the repository has no key", async () => {
		const { producer, defaults } = createProducer();
		const monitor = makeMonitor({ type: "docker", url: "tcp://host", dockerTlsKeySet: true });

		await producer.produce(monitor);

		expect(defaults.monitorsRepository.findDockerTlsKeyById).toHaveBeenCalledWith("m1");
		expect(defaults.networkService.requestStatus).toHaveBeenCalledWith(monitor, { proxyUrl: undefined, dockerTlsKey: undefined });
	});

	it("throws when the network response is null", async () => {
		const { producer } = createProducer({
			networkService: { requestStatus: jest.fn().mockResolvedValue(null) },
		});

		await expect(producer.produce(makeMonitor())).rejects.toThrow("No network response");
	});

	it("returns null, warns, and does not buffer when toCheck yields nothing", async () => {
		const { producer, defaults } = createProducer({
			checkService: { toCheck: jest.fn().mockReturnValue(null) },
		});

		const result = await producer.produce(makeMonitor());

		expect(result).toBeNull();
		expect(defaults.logger.warn).toHaveBeenCalledWith(expect.objectContaining({ message: expect.stringContaining("No check could be built") }));
		expect(defaults.buffer.addToBuffer).not.toHaveBeenCalled();
	});

	it("buffers the built check and returns the status and check on success", async () => {
		const status = { monitorId: "m1", status: false, code: 500, message: "Error" };
		const check = { id: "check-1" };
		const { producer, defaults } = createProducer({
			networkService: { requestStatus: jest.fn().mockResolvedValue(status) },
			checkService: { toCheck: jest.fn().mockReturnValue(check) },
		});

		const result = await producer.produce(makeMonitor());

		expect(defaults.buffer.addToBuffer).toHaveBeenCalledWith(check);
		expect(result).toEqual({ status, check });
	});

	it("builds and buffers docker logs for a docker status", async () => {
		const status = { type: "docker", monitorId: "m1", teamId: "team", status: true, code: 200, message: "OK", payload: {} };
		const dockerLogs = [{ id: "docker-log-1" }, { id: "docker-log-2" }];
		const { producer, defaults } = createProducer({
			networkService: { requestStatus: jest.fn().mockResolvedValue(status) },
			buffer: { addToBuffer: jest.fn(), addDockerLogToBuffer: jest.fn() },
			dockerLogsService: { buildDockerLogs: jest.fn().mockResolvedValue(dockerLogs) },
		});

		await producer.produce(makeMonitor({ type: "docker" }));

		expect(defaults.dockerLogsService.buildDockerLogs).toHaveBeenCalledWith(status);
		expect(defaults.buffer.addDockerLogToBuffer).toHaveBeenNthCalledWith(1, dockerLogs[0]);
		expect(defaults.buffer.addDockerLogToBuffer).toHaveBeenNthCalledWith(2, dockerLogs[1]);
	});

	it("does not build docker logs for a non-docker status", async () => {
		const { producer, defaults } = createProducer();

		await producer.produce(makeMonitor());

		expect(defaults.dockerLogsService.buildDockerLogs).not.toHaveBeenCalled();
	});
});