jest.mock("uuid", () => ({
	v4: jest.fn(() => "mocked-uuid"),
}));

jest.mock("@noble/post-quantum/ml-kem.js", () => ({
	ml_kem768: {
		keygen: jest.fn(),
		encapsulate: jest.fn(),
		decapsulate: jest.fn(),
	},
}));

jest.mock("jose", () => ({
	SignJWT: jest.fn(),
	jwtVerify: jest.fn(),
}));

import { CACHE_MANAGER } from "@nestjs/cache-manager";
import { ConfigService } from "@nestjs/config";
import { Test, TestingModule } from "@nestjs/testing";
import { RbacService } from "../auth/rbac.service";
import { MediaService } from "../media/media.service";
import { S3Service } from "../s3/s3.service";
import { UsersRepository } from "./repositories/users.repository";
import { UsersService } from "./users.service";

describe("UsersService", () => {
	let service: UsersService;
	let repository: UsersRepository;

	const mockUsersRepository = {
		create: jest.fn(),
		findOne: jest.fn(),
		findByEmailHash: jest.fn(),
		findOneWithPrivateData: jest.fn(),
		countAll: jest.fn(),
		findAll: jest.fn(),
		findByUsername: jest.fn(),
		update: jest.fn(),
		getTwoFactorSecret: jest.fn(),
		getUserContents: jest.fn(),
		getUserFavorites: jest.fn(),
		softDeleteUserAndContents: jest.fn(),
	};

	const mockCacheManager = {
		del: jest.fn(),
	};

	const mockRbacService = {
		getUserRoles: jest.fn(),
	};

	const mockMediaService = {
		scanFile: jest.fn(),
		processImage: jest.fn(),
	};

	const mockS3Service = {
		uploadFile: jest.fn(),
		getPublicUrl: jest.fn(),
	};

	const mockConfigService = {
		get: jest.fn(),
	};

	beforeEach(async () => {
		jest.clearAllMocks();

		const module: TestingModule = await Test.createTestingModule({
			providers: [
				UsersService,
				{ provide: UsersRepository, useValue: mockUsersRepository },
				{ provide: CACHE_MANAGER, useValue: mockCacheManager },
				{ provide: RbacService, useValue: mockRbacService },
				{ provide: MediaService, useValue: mockMediaService },
				{ provide: S3Service, useValue: mockS3Service },
				{ provide: ConfigService, useValue: mockConfigService },
			],
		}).compile();

		service = module.get<UsersService>(UsersService);
		repository = module.get<UsersRepository>(UsersRepository);
	});

	it("should be defined", () => {
		expect(service).toBeDefined();
	});

	describe("create", () => {
		it("should create a user", async () => {
			const data = {
				username: "u1",
				email: "e1",
				passwordHash: "p1",
				emailHash: "eh1",
			};
			mockUsersRepository.create.mockResolvedValue({ uuid: "uuid1", ...data });

			const result = await service.create(data);

			expect(result.uuid).toBe("uuid1");
			expect(repository.create).toHaveBeenCalledWith(data);
		});
	});

	describe("findOne", () => {
		it("should find a user", async () => {
			mockUsersRepository.findOne.mockResolvedValue({ uuid: "uuid1" });
			const result = await service.findOne("uuid1");
			expect(result.uuid).toBe("uuid1");
		});

		it("should return null if not found", async () => {
			mockUsersRepository.findOne.mockResolvedValue(null);
			const result = await service.findOne("uuid1");
			expect(result).toBeNull();
		});
	});

	describe("update", () => {
		it("should update a user", async () => {
			mockUsersRepository.update.mockResolvedValue([
				{ uuid: "uuid1", displayName: "New" },
			]);
			const result = await service.update("uuid1", { displayName: "New" });
			expect(result[0].displayName).toBe("New");
		});
	});

	describe("clearUserCache", () => {
		it("should delete cache", async () => {
			await service.clearUserCache("u1");
			expect(mockCacheManager.del).toHaveBeenCalledWith("users/profile/u1");
		});
	});

	describe("findByEmailHash", () => {
		it("should call repository.findByEmailHash", async () => {
			mockUsersRepository.findByEmailHash.mockResolvedValue({ uuid: "u1" });
			const result = await service.findByEmailHash("hash");
			expect(result.uuid).toBe("u1");
			expect(mockUsersRepository.findByEmailHash).toHaveBeenCalledWith("hash");
		});
	});

	describe("findOneWithPrivateData", () => {
		it("should return user with roles", async () => {
			mockUsersRepository.findOneWithPrivateData.mockResolvedValue({ uuid: "u1" });
			mockRbacService.getUserRoles.mockResolvedValue(["admin"]);
			const result = await service.findOneWithPrivateData("u1");
			expect(result.roles).toEqual(["admin"]);
		});
	});

	describe("findAll", () => {
		it("should return all users", async () => {
			mockUsersRepository.findAll.mockResolvedValue([{ uuid: "u1" }]);
			mockUsersRepository.countAll.mockResolvedValue(1);

			const result = await service.findAll(10, 0);

			expect(result.totalCount).toBe(1);
			expect(result.data[0].uuid).toBe("u1");
		});
	});

	describe("findPublicProfile", () => {
		it("should return public profile", async () => {
			mockUsersRepository.findByUsername.mockResolvedValue({
				uuid: "u1",
				username: "u1",
			});
			const result = await service.findPublicProfile("u1");
			expect(result.username).toBe("u1");
		});
	});

	describe("updateConsent", () => {
		it("should update consent", async () => {
			await service.updateConsent("u1", "v1", "v2");
			expect(mockUsersRepository.update).toHaveBeenCalledWith("u1", {
				termsVersion: "v1",
				privacyVersion: "v2",
				gdprAcceptedAt: expect.any(Date),
			});
		});
	});

	describe("setTwoFactorSecret", () => {
		it("should set 2fa secret", async () => {
			await service.setTwoFactorSecret("u1", "secret");
			expect(mockUsersRepository.update).toHaveBeenCalledWith("u1", {
				twoFactorSecret: "secret",
			});
		});
	});

	describe("toggleTwoFactor", () => {
		it("should toggle 2fa", async () => {
			await service.toggleTwoFactor("u1", true);
			expect(mockUsersRepository.update).toHaveBeenCalledWith("u1", {
				isTwoFactorEnabled: true,
			});
		});
	});

	describe("getTwoFactorSecret", () => {
		it("should return 2fa secret", async () => {
			mockUsersRepository.getTwoFactorSecret.mockResolvedValue("secret");
			const result = await service.getTwoFactorSecret("u1");
			expect(result).toBe("secret");
		});
	});

	describe("exportUserData", () => {
		it("should return all user data", async () => {
			mockUsersRepository.findOneWithPrivateData.mockResolvedValue({ uuid: "u1" });
			mockUsersRepository.getUserContents.mockResolvedValue([]);
			mockUsersRepository.getUserFavorites.mockResolvedValue([]);

			const result = await service.exportUserData("u1");

			expect(result.profile).toBeDefined();
			expect(result.contents).toBeDefined();
			expect(result.favorites).toBeDefined();
		});
	});

	describe("remove", () => {
		it("should soft delete user", async () => {
			await service.remove("u1");
			expect(mockUsersRepository.softDeleteUserAndContents).toHaveBeenCalledWith(
				"u1",
			);
		});
	});
});