/*
 * SPDX-FileCopyrightText: syuilo and misskey-project
 * SPDX-License-Identifier: AGPL-3.0-only
 */

import { UserEntityService } from '@/core/entities/UserEntityService.js';

process.env.NODE_ENV = 'test';

import { jest } from '@jest/globals';
import { IsNull, Not } from 'typeorm';
import { ModuleMocker } from 'jest-mock';
import { Test } from '@nestjs/testing';
import * as lolex from '@sinonjs/fake-timers';
import { GlobalModule } from '@/GlobalModule.js';
import { RoleService } from '@/core/RoleService.js';
import type { MiRole, MiUser, RoleAssignmentsRepository, RolesRepository, UsersRepository } from '@/models/_.js';
import { DI } from '@/di-symbols.js';
import { MetaService } from '@/core/MetaService.js';
import { genAidx } from '@/misc/id/aidx.js';
import { CacheService } from '@/core/CacheService.js';
import { IdService } from '@/core/IdService.js';
import { GlobalEventService } from '@/core/GlobalEventService.js';
import { secureRndstr } from '@/misc/secure-rndstr.js';
import { NotificationService } from '@/core/NotificationService.js';
import { RoleCondFormulaValue } from '@/models/Role.js';
import { sleep } from '../utils.js';
import type { TestingModule } from '@nestjs/testing';
import type { MockFunctionMetadata } from 'jest-mock';

const moduleMocker = new ModuleMocker(global);

describe('RoleService', () => {
	let app: TestingModule;
	let roleService: RoleService;
	let usersRepository: UsersRepository;
	let rolesRepository: RolesRepository;
	let roleAssignmentsRepository: RoleAssignmentsRepository;
	let metaService: jest.Mocked<MetaService>;
	let notificationService: jest.Mocked<NotificationService>;
	let clock: lolex.InstalledClock;

	function createUser(data: Partial<MiUser> = {}) {
		const un = secureRndstr(16);
		return usersRepository.insert({
			id: genAidx(Date.now()),
			username: un,
			usernameLower: un,
			...data,
		})
			.then(x => usersRepository.findOneByOrFail(x.identifiers[0]));
	}

	function createRole(data: Partial<MiRole> = {}) {
		return rolesRepository.insert({
			id: genAidx(Date.now()),
			updatedAt: new Date(),
			lastUsedAt: new Date(),
			name: '',
			description: '',
			...data,
		})
			.then(x => rolesRepository.findOneByOrFail(x.identifiers[0]));
	}

	function createConditionalRole(condFormula: RoleCondFormulaValue, data: Partial<MiRole> = {}) {
		return createRole({
			name: `[conditional] ${condFormula.type}`,
			target: 'conditional',
			condFormula: condFormula,
			...data,
		});
	}

	function aidx() {
		return genAidx(Date.now());
	}

	beforeEach(async () => {
		clock = lolex.install({
			now: new Date(),
			shouldClearNativeTimers: true,
		});

		app = await Test.createTestingModule({
			imports: [
				GlobalModule,
			],
			providers: [
				RoleService,
				CacheService,
				IdService,
				GlobalEventService,
				UserEntityService,
				{
					provide: NotificationService,
					useFactory: () => ({
						createNotification: jest.fn(),
					}),
				},
				{
					provide: NotificationService.name,
					useExisting: NotificationService,
				},
			],
		})
			.useMocker((token) => {
				if (token === MetaService) {
					return { fetch: jest.fn() };
				}
				if (typeof token === 'function') {
					const mockMetadata = moduleMocker.getMetadata(token) as MockFunctionMetadata<any, any>;
					const Mock = moduleMocker.generateFromMetadata(mockMetadata);
					return new Mock();
				}
			})
			.compile();

		app.enableShutdownHooks();

		roleService = app.get<RoleService>(RoleService);
		usersRepository = app.get<UsersRepository>(DI.usersRepository);
		rolesRepository = app.get<RolesRepository>(DI.rolesRepository);
		roleAssignmentsRepository = app.get<RoleAssignmentsRepository>(DI.roleAssignmentsRepository);

		metaService = app.get<MetaService>(MetaService) as jest.Mocked<MetaService>;
		notificationService = app.get<NotificationService>(NotificationService) as jest.Mocked<NotificationService>;

		await roleService.onModuleInit();
	});

	afterEach(async () => {
		clock.uninstall();

		await Promise.all([
			app.get(DI.metasRepository).delete({ id: Not(IsNull()) }),
			usersRepository.delete({ id: Not(IsNull()) }),
			rolesRepository.delete({ id: Not(IsNull()) }),
			roleAssignmentsRepository.delete({ id: Not(IsNull()) }),
		]);

		await app.close();
	});

	describe('getUserPolicies', () => {
		test('instance default policies', async () => {
			const user = await createUser();
			metaService.fetch.mockResolvedValue({
				policies: {
					canManageCustomEmojis: false,
				},
			} as FIXME);

			const result = await roleService.getUserPolicies(user.id);

			expect(result.canManageCustomEmojis).toBe(false);
		});

		test('instance default policies 2', async () => {
			const user = await createUser();
			metaService.fetch.mockResolvedValue({
				policies: {
					canManageCustomEmojis: true,
				},
			} as FIXME);

			const result = await roleService.getUserPolicies(user.id);

			expect(result.canManageCustomEmojis).toBe(true);
		});

		test('with role', async () => {
			const user = await createUser();
			const role = await createRole({
				name: 'a',
				policies: {
					canManageCustomEmojis: {
						useDefault: false,
						priority: 0,
						value: true,
					},
				},
			});
			await roleService.assign(user.id, role.id);
			metaService.fetch.mockResolvedValue({
				policies: {
					canManageCustomEmojis: false,
				},
			} as FIXME);

			const result = await roleService.getUserPolicies(user.id);

			expect(result.canManageCustomEmojis).toBe(true);
		});

		test('priority', async () => {
			const user = await createUser();
			const role1 = await createRole({
				name: 'role1',
				policies: {
					driveCapacityMb: {
						useDefault: false,
						priority: 0,
						value: 200,
					},
				},
			});
			const role2 = await createRole({
				name: 'role2',
				policies: {
					driveCapacityMb: {
						useDefault: false,
						priority: 1,
						value: 100,
					},
				},
			});
			await roleService.assign(user.id, role1.id);
			await roleService.assign(user.id, role2.id);
			metaService.fetch.mockResolvedValue({
				policies: {
					driveCapacityMb: 50,
				},
			} as FIXME);

			const result = await roleService.getUserPolicies(user.id);

			expect(result.driveCapacityMb).toBe(100);
		});

		test('expired role', async () => {
			const user = await createUser();
			const role = await createRole({
				name: 'a',
				policies: {
					canManageCustomEmojis: {
						useDefault: false,
						priority: 0,
						value: true,
					},
				},
			});
			await roleService.assign(user.id, role.id, 'test', new Date(Date.now() + (1000 * 60 * 60 * 24)));
			metaService.fetch.mockResolvedValue({
				policies: {
					canManageCustomEmojis: false,
				},
			} as FIXME);

			const result = await roleService.getUserPolicies(user.id);
			expect(result.canManageCustomEmojis).toBe(true);

			clock.tick('25:00:00');

			const resultAfter25h = await roleService.getUserPolicies(user.id);
			expect(resultAfter25h.canManageCustomEmojis).toBe(false);

			await roleService.assign(user.id, role.id);

			// ストリーミング経由で反映されるまでちょっと待つ
			clock.uninstall();
			await sleep(100);

			const resultAfter25hAgain = await roleService.getUserPolicies(user.id);
			expect(resultAfter25hAgain.canManageCustomEmojis).toBe(true);
		});
	});

	describe('conditional role', () => {
		test('～かつ～', async () => {
			const [user1, user2, user3, user4] = await Promise.all([
				createUser({ isBot: true, isCat: false, isSuspended: false }),
				createUser({ isBot: false, isCat: true, isSuspended: false }),
				createUser({ isBot: true, isCat: true, isSuspended: false }),
				createUser({ isBot: false, isCat: false, isSuspended: true }),
			]);
			const role1 = await createConditionalRole({
				id: aidx(),
				type: 'isBot',
			});
			const role2 = await createConditionalRole({
				id: aidx(),
				type: 'isCat',
			});
			const role3 = await createConditionalRole({
				id: aidx(),
				type: 'isSuspended',
			});
			const role4 = await createConditionalRole({
				id: aidx(),
				type: 'and',
				values: [role1.condFormula, role2.condFormula],
			});

			const actual1 = await roleService.getUserRoles(user1.id);
			const actual2 = await roleService.getUserRoles(user2.id);
			const actual3 = await roleService.getUserRoles(user3.id);
			const actual4 = await roleService.getUserRoles(user4.id);
			expect(actual1.some(r => r.id === role4.id)).toBe(false);
			expect(actual2.some(r => r.id === role4.id)).toBe(false);
			expect(actual3.some(r => r.id === role4.id)).toBe(true);
			expect(actual4.some(r => r.id === role4.id)).toBe(false);
		});

		test('～または～', async () => {
			const [user1, user2, user3, user4] = await Promise.all([
				createUser({ isBot: true, isCat: false, isSuspended: false }),
				createUser({ isBot: false, isCat: true, isSuspended: false }),
				createUser({ isBot: true, isCat: true, isSuspended: false }),
				createUser({ isBot: false, isCat: false, isSuspended: true }),
			]);
			const role1 = await createConditionalRole({
				id: aidx(),
				type: 'isBot',
			});
			const role2 = await createConditionalRole({
				id: aidx(),
				type: 'isCat',
			});
			const role3 = await createConditionalRole({
				id: aidx(),
				type: 'isSuspended',
			});
			const role4 = await createConditionalRole({
				id: aidx(),
				type: 'or',
				values: [role1.condFormula, role2.condFormula],
			});

			const actual1 = await roleService.getUserRoles(user1.id);
			const actual2 = await roleService.getUserRoles(user2.id);
			const actual3 = await roleService.getUserRoles(user3.id);
			const actual4 = await roleService.getUserRoles(user4.id);
			expect(actual1.some(r => r.id === role4.id)).toBe(true);
			expect(actual2.some(r => r.id === role4.id)).toBe(true);
			expect(actual3.some(r => r.id === role4.id)).toBe(true);
			expect(actual4.some(r => r.id === role4.id)).toBe(false);
		});

		test('～ではない', async () => {
			const [user1, user2, user3] = await Promise.all([
				createUser({ isBot: true, isCat: false, isSuspended: false }),
				createUser({ isBot: false, isCat: true, isSuspended: false }),
				createUser({ isBot: true, isCat: true, isSuspended: false }),
			]);
			const role1 = await createConditionalRole({
				id: aidx(),
				type: 'isBot',
			});
			const role2 = await createConditionalRole({
				id: aidx(),
				type: 'isCat',
			});
			const role4 = await createConditionalRole({
				id: aidx(),
				type: 'not',
				value: role1.condFormula,
			});

			const actual1 = await roleService.getUserRoles(user1.id);
			const actual2 = await roleService.getUserRoles(user2.id);
			const actual3 = await roleService.getUserRoles(user3.id);
			expect(actual1.some(r => r.id === role4.id)).toBe(false);
			expect(actual2.some(r => r.id === role4.id)).toBe(true);
			expect(actual3.some(r => r.id === role4.id)).toBe(false);
		});

		test('マニュアルロールにアサイン済み', async () => {
			const [user1, user2, role1] = await Promise.all([
				createUser(),
				createUser(),
				createRole({
					name: 'manual role',
				}),
			]);
			const role2 = await createConditionalRole({
				id: aidx(),
				type: 'roleAssignedTo',
				roleId: role1.id,
			});
			await roleService.assign(user2.id, role1.id);

			const [u1role, u2role] = await Promise.all([
				roleService.getUserRoles(user1.id),
				roleService.getUserRoles(user2.id),
			]);
			expect(u1role.some(r => r.id === role2.id)).toBe(false);
			expect(u2role.some(r => r.id === role2.id)).toBe(true);
		});

		test('ローカルユーザのみ', async () => {
			const [user1, user2] = await Promise.all([
				createUser({ host: null }),
				createUser({ host: 'example.com' }),
			]);
			const role = await createConditionalRole({
				id: aidx(),
				type: 'isLocal',
			});

			const actual1 = await roleService.getUserRoles(user1.id);
			const actual2 = await roleService.getUserRoles(user2.id);
			expect(actual1.some(r => r.id === role.id)).toBe(true);
			expect(actual2.some(r => r.id === role.id)).toBe(false);
		});

		test('リモートユーザのみ', async () => {
			const [user1, user2] = await Promise.all([
				createUser({ host: null }),
				createUser({ host: 'example.com' }),
			]);
			const role = await createConditionalRole({
				id: aidx(),
				type: 'isRemote',
			});

			const actual1 = await roleService.getUserRoles(user1.id);
			const actual2 = await roleService.getUserRoles(user2.id);
			expect(actual1.some(r => r.id === role.id)).toBe(false);
			expect(actual2.some(r => r.id === role.id)).toBe(true);
		});

		test('サスペンド済みユーザである', async () => {
			const [user1, user2] = await Promise.all([
				createUser({ isSuspended: false }),
				createUser({ isSuspended: true }),
			]);
			const role = await createConditionalRole({
				id: aidx(),
				type: 'isSuspended',
			});

			const actual1 = await roleService.getUserRoles(user1.id);
			const actual2 = await roleService.getUserRoles(user2.id);
			expect(actual1.some(r => r.id === role.id)).toBe(false);
			expect(actual2.some(r => r.id === role.id)).toBe(true);
		});

		test('鍵アカウントユーザである', async () => {
			const [user1, user2] = await Promise.all([
				createUser({ isLocked: false }),
				createUser({ isLocked: true }),
			]);
			const role = await createConditionalRole({
				id: aidx(),
				type: 'isLocked',
			});

			const actual1 = await roleService.getUserRoles(user1.id);
			const actual2 = await roleService.getUserRoles(user2.id);
			expect(actual1.some(r => r.id === role.id)).toBe(false);
			expect(actual2.some(r => r.id === role.id)).toBe(true);
		});

		test('botユーザである', async () => {
			const [user1, user2] = await Promise.all([
				createUser({ isBot: false }),
				createUser({ isBot: true }),
			]);
			const role = await createConditionalRole({
				id: aidx(),
				type: 'isBot',
			});

			const actual1 = await roleService.getUserRoles(user1.id);
			const actual2 = await roleService.getUserRoles(user2.id);
			expect(actual1.some(r => r.id === role.id)).toBe(false);
			expect(actual2.some(r => r.id === role.id)).toBe(true);
		});

		test('猫である', async () => {
			const [user1, user2] = await Promise.all([
				createUser({ isCat: false }),
				createUser({ isCat: true }),
			]);
			const role = await createConditionalRole({
				id: aidx(),
				type: 'isCat',
			});

			const actual1 = await roleService.getUserRoles(user1.id);
			const actual2 = await roleService.getUserRoles(user2.id);
			expect(actual1.some(r => r.id === role.id)).toBe(false);
			expect(actual2.some(r => r.id === role.id)).toBe(true);
		});

		test('「ユーザを見つけやすくする」が有効なアカウント', async () => {
			const [user1, user2] = await Promise.all([
				createUser({ isExplorable: false }),
				createUser({ isExplorable: true }),
			]);
			const role = await createConditionalRole({
				id: aidx(),
				type: 'isExplorable',
			});

			const actual1 = await roleService.getUserRoles(user1.id);
			const actual2 = await roleService.getUserRoles(user2.id);
			expect(actual1.some(r => r.id === role.id)).toBe(false);
			expect(actual2.some(r => r.id === role.id)).toBe(true);
		});

		test('ユーザが作成されてから指定期間経過した', async () => {
			const base = new Date();
			base.setMinutes(base.getMinutes() - 5);

			const d1 = new Date(base);
			const d2 = new Date(base);
			const d3 = new Date(base);
			d1.setSeconds(d1.getSeconds() - 1);
			d3.setSeconds(d3.getSeconds() + 1);

			const [user1, user2, user3] = await Promise.all([
				// 4:59
				createUser({ id: genAidx(d1.getTime()) }),
				// 5:00
				createUser({ id: genAidx(d2.getTime()) }),
				// 5:01
				createUser({ id: genAidx(d3.getTime()) }),
			]);
			const role = await createConditionalRole({
				id: aidx(),
				type: 'createdLessThan',
				// 5 minutes
				sec: 300,
			});

			const actual1 = await roleService.getUserRoles(user1.id);
			const actual2 = await roleService.getUserRoles(user2.id);
			const actual3 = await roleService.getUserRoles(user3.id);
			expect(actual1.some(r => r.id === role.id)).toBe(false);
			expect(actual2.some(r => r.id === role.id)).toBe(false);
			expect(actual3.some(r => r.id === role.id)).toBe(true);
		});

		test('ユーザが作成されてから指定期間経っていない', async () => {
			const base = new Date();
			base.setMinutes(base.getMinutes() - 5);

			const d1 = new Date(base);
			const d2 = new Date(base);
			const d3 = new Date(base);
			d1.setSeconds(d1.getSeconds() - 1);
			d3.setSeconds(d3.getSeconds() + 1);

			const [user1, user2, user3] = await Promise.all([
				// 4:59
				createUser({ id: genAidx(d1.getTime()) }),
				// 5:00
				createUser({ id: genAidx(d2.getTime()) }),
				// 5:01
				createUser({ id: genAidx(d3.getTime()) }),
			]);
			const role = await createConditionalRole({
				id: aidx(),
				type: 'createdMoreThan',
				// 5 minutes
				sec: 300,
			});

			const actual1 = await roleService.getUserRoles(user1.id);
			const actual2 = await roleService.getUserRoles(user2.id);
			const actual3 = await roleService.getUserRoles(user3.id);
			expect(actual1.some(r => r.id === role.id)).toBe(true);
			expect(actual2.some(r => r.id === role.id)).toBe(false);
			expect(actual3.some(r => r.id === role.id)).toBe(false);
		});

		test('フォロワー数が指定値以下', async () => {
			const [user1, user2, user3] = await Promise.all([
				createUser({ followersCount: 99 }),
				createUser({ followersCount: 100 }),
				createUser({ followersCount: 101 }),
			]);
			const role = await createConditionalRole({
				id: aidx(),
				type: 'followersLessThanOrEq',
				value: 100,
			});

			const actual1 = await roleService.getUserRoles(user1.id);
			const actual2 = await roleService.getUserRoles(user2.id);
			const actual3 = await roleService.getUserRoles(user3.id);
			expect(actual1.some(r => r.id === role.id)).toBe(true);
			expect(actual2.some(r => r.id === role.id)).toBe(true);
			expect(actual3.some(r => r.id === role.id)).toBe(false);
		});

		test('フォロワー数が指定値以下', async () => {
			const [user1, user2, user3] = await Promise.all([
				createUser({ followersCount: 99 }),
				createUser({ followersCount: 100 }),
				createUser({ followersCount: 101 }),
			]);
			const role = await createConditionalRole({
				id: aidx(),
				type: 'followersMoreThanOrEq',
				value: 100,
			});

			const actual1 = await roleService.getUserRoles(user1.id);
			const actual2 = await roleService.getUserRoles(user2.id);
			const actual3 = await roleService.getUserRoles(user3.id);
			expect(actual1.some(r => r.id === role.id)).toBe(false);
			expect(actual2.some(r => r.id === role.id)).toBe(true);
			expect(actual3.some(r => r.id === role.id)).toBe(true);
		});

		test('フォロー数が指定値以下', async () => {
			const [user1, user2, user3] = await Promise.all([
				createUser({ followingCount: 99 }),
				createUser({ followingCount: 100 }),
				createUser({ followingCount: 101 }),
			]);
			const role = await createConditionalRole({
				id: aidx(),
				type: 'followingLessThanOrEq',
				value: 100,
			});

			const actual1 = await roleService.getUserRoles(user1.id);
			const actual2 = await roleService.getUserRoles(user2.id);
			const actual3 = await roleService.getUserRoles(user3.id);
			expect(actual1.some(r => r.id === role.id)).toBe(true);
			expect(actual2.some(r => r.id === role.id)).toBe(true);
			expect(actual3.some(r => r.id === role.id)).toBe(false);
		});

		test('フォロー数が指定値以上', async () => {
			const [user1, user2, user3] = await Promise.all([
				createUser({ followingCount: 99 }),
				createUser({ followingCount: 100 }),
				createUser({ followingCount: 101 }),
			]);
			const role = await createConditionalRole({
				id: aidx(),
				type: 'followingMoreThanOrEq',
				value: 100,
			});

			const actual1 = await roleService.getUserRoles(user1.id);
			const actual2 = await roleService.getUserRoles(user2.id);
			const actual3 = await roleService.getUserRoles(user3.id);
			expect(actual1.some(r => r.id === role.id)).toBe(false);
			expect(actual2.some(r => r.id === role.id)).toBe(true);
			expect(actual3.some(r => r.id === role.id)).toBe(true);
		});

		test('ノート数が指定値以下', async () => {
			const [user1, user2, user3] = await Promise.all([
				createUser({ notesCount: 9 }),
				createUser({ notesCount: 10 }),
				createUser({ notesCount: 11 }),
			]);
			const role = await createConditionalRole({
				id: aidx(),
				type: 'notesLessThanOrEq',
				value: 10,
			});

			const actual1 = await roleService.getUserRoles(user1.id);
			const actual2 = await roleService.getUserRoles(user2.id);
			const actual3 = await roleService.getUserRoles(user3.id);
			expect(actual1.some(r => r.id === role.id)).toBe(true);
			expect(actual2.some(r => r.id === role.id)).toBe(true);
			expect(actual3.some(r => r.id === role.id)).toBe(false);
		});

		test('ノート数が指定値以上', async () => {
			const [user1, user2, user3] = await Promise.all([
				createUser({ notesCount: 9 }),
				createUser({ notesCount: 10 }),
				createUser({ notesCount: 11 }),
			]);
			const role = await createConditionalRole({
				id: aidx(),
				type: 'notesMoreThanOrEq',
				value: 10,
			});

			const actual1 = await roleService.getUserRoles(user1.id);
			const actual2 = await roleService.getUserRoles(user2.id);
			const actual3 = await roleService.getUserRoles(user3.id);
			expect(actual1.some(r => r.id === role.id)).toBe(false);
			expect(actual2.some(r => r.id === role.id)).toBe(true);
			expect(actual3.some(r => r.id === role.id)).toBe(true);
		});
	});

	describe('assign', () => {
		test('公開ロールの場合は通知される', async () => {
			const user = await createUser();
			const role = await createRole({
				isPublic: true,
				name: 'a',
			});

			await roleService.assign(user.id, role.id);

			clock.uninstall();
			await sleep(100);

			const assignments = await roleAssignmentsRepository.find({
				where: {
					userId: user.id,
					roleId: role.id,
				},
			});
			expect(assignments).toHaveLength(1);

			expect(notificationService.createNotification).toHaveBeenCalled();
			expect(notificationService.createNotification.mock.lastCall![0]).toBe(user.id);
			expect(notificationService.createNotification.mock.lastCall![1]).toBe('roleAssigned');
			expect(notificationService.createNotification.mock.lastCall![2]).toEqual({
				roleId: role.id,
			});
		});

		test('非公開ロールの場合は通知されない', async () => {
			const user = await createUser();
			const role = await createRole({
				isPublic: false,
				name: 'a',
			});

			await roleService.assign(user.id, role.id);

			clock.uninstall();
			await sleep(100);

			const assignments = await roleAssignmentsRepository.find({
				where: {
					userId: user.id,
					roleId: role.id,
				},
			});
			expect(assignments).toHaveLength(1);

			expect(notificationService.createNotification).not.toHaveBeenCalled();
		});
	});
});
