<?php

declare(strict_types=1);
/**
 * SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
 * SPDX-License-Identifier: AGPL-3.0-or-later
 */

namespace OCA\Talk\Tests\BackgroundJob;

use OCA\Talk\BackgroundJob\RemoveEmptyRooms;
use OCA\Talk\Federation\FederationManager;
use OCA\Talk\Manager;
use OCA\Talk\Room;
use OCA\Talk\Service\ParticipantService;
use OCA\Talk\Service\RoomService;
use OCP\AppFramework\Utility\ITimeFactory;
use OCP\Files\Config\IUserMountCache;
use PHPUnit\Framework\Attributes\DataProvider;
use PHPUnit\Framework\MockObject\MockObject;
use Psr\Log\LoggerInterface;
use Test\TestCase;

class RemoveEmptyRoomsTest extends TestCase {
	protected ITimeFactory&MockObject $timeFactory;
	protected Manager&MockObject $manager;
	protected RoomService&MockObject $roomService;
	protected ParticipantService&MockObject $participantService;
	protected FederationManager&MockObject $federationManager;
	protected LoggerInterface&MockObject $loggerInterface;
	protected IUserMountCache&MockObject $userMountCache;

	public function setUp(): void {
		parent::setUp();

		$this->timeFactory = $this->createMock(ITimeFactory::class);
		$this->manager = $this->createMock(Manager::class);
		$this->roomService = $this->createMock(RoomService::class);
		$this->participantService = $this->createMock(ParticipantService::class);
		$this->federationManager = $this->createMock(FederationManager::class);
		$this->loggerInterface = $this->createMock(LoggerInterface::class);
		$this->userMountCache = $this->createMock(IUserMountCache::class);
	}

	public function getBackgroundJob(): RemoveEmptyRooms {
		return new RemoveEmptyRooms(
			$this->timeFactory,
			$this->manager,
			$this->roomService,
			$this->participantService,
			$this->federationManager,
			$this->loggerInterface,
			$this->userMountCache,
		);
	}

	public function testDoDeleteRoom(): void {
		$backgroundJob = $this->getBackgroundJob();

		$room = $this->createMock(Room::class);
		$room->method('getType')
			->willReturn(Room::TYPE_GROUP);
		$numDeletedRooms = self::invokePrivate($backgroundJob, 'numDeletedRooms');
		$this->assertEquals(0, $numDeletedRooms, 'Invalid default quantity of rooms');

		self::invokePrivate($backgroundJob, 'doDeleteRoom', [$room]);

		$numDeletedRooms = self::invokePrivate($backgroundJob, 'numDeletedRooms');
		$this->assertEquals(1, $numDeletedRooms, 'Invalid final quantity of rooms');
	}

	public static function dataDeleteIfFileIsRemoved(): array {
		return [
			['', [], 0],
			['email', [], 0],
			['file', ['fileExists'], 0],
			['file', [], 1],
		];
	}

	#[DataProvider('dataDeleteIfFileIsRemoved')]
	public function testDeleteIfFileIsRemoved(string $objectType, array $fileList, int $numDeletedRoomsExpected): void {
		$backgroundJob = $this->getBackgroundJob();

		$numDeletedRoomsActual = self::invokePrivate($backgroundJob, 'numDeletedRooms');
		$this->assertEquals(0, $numDeletedRoomsActual, 'Invalid default quantity of rooms');

		$room = $this->createMock(Room::class);
		$room->method('getType')
			->willReturn(Room::TYPE_GROUP);
		$room->method('getObjectType')
			->willReturn($objectType);

		$userMountCache = self::invokePrivate($backgroundJob, 'userMountCache');
		$userMountCache->method('getMountsForFileId')
			->willReturn($fileList);

		self::invokePrivate($backgroundJob, 'deleteIfFileIsRemoved', [$room]);

		$numDeletedRoomsActual = self::invokePrivate($backgroundJob, 'numDeletedRooms');
		$this->assertEquals($numDeletedRoomsExpected, $numDeletedRoomsActual, 'Invalid final quantity of rooms');
	}

	public static function dataDeleteIfIsEmpty(): array {
		return [
			'room with user' => ['', 1, 0, 0],
			'room with fed invite' => ['', 0, 1, 0],
			'room to delete' => ['', 0, 0, 1],
			'file room with user' => ['file', 1, 0, 0],
			'email room with user' => ['email', 1, 0, 0],
			'email room without user' => ['email', 0, 0, 1]
		];
	}

	#[DataProvider('dataDeleteIfIsEmpty')]
	public function testDeleteIfIsEmpty(string $objectType, int $actorsCount, int $inviteCount, int $numDeletedRoomsExpected): void {
		$backgroundJob = $this->getBackgroundJob();

		$numDeletedRoomsActual = self::invokePrivate($backgroundJob, 'numDeletedRooms');
		$this->assertEquals(0, $numDeletedRoomsActual, 'Invalid default quantity of rooms');

		$room = $this->createMock(Room::class);
		$room->method('getType')
			->willReturn(Room::TYPE_GROUP);
		$room->method('getObjectType')
			->willReturn($objectType);
		$room->method('isFederatedConversation')
			->willReturn($inviteCount > 0);

		$this->federationManager->method('getNumberOfInvitations')
			->with($room)
			->willReturn($inviteCount);

		$participantService = self::invokePrivate($backgroundJob, 'participantService');
		$participantService->method('getNumberOfActors')
			->willReturn($actorsCount);

		self::invokePrivate($backgroundJob, 'deleteIfIsEmpty', [$room]);

		$numDeletedRoomsActual = self::invokePrivate($backgroundJob, 'numDeletedRooms');
		$this->assertEquals($numDeletedRoomsExpected, $numDeletedRoomsActual, 'Invalid final quantity of rooms');
	}

	#[DataProvider('dataCallback')]
	public function testCallback(int $roomType, string $objectType, int $numDeletedRoomsExpected): void {
		$backgroundJob = $this->getBackgroundJob();
		$room = $this->createMock(Room::class);
		$room->method('getType')
			->willReturn($roomType);
		$room->method('getObjectType')
			->willReturn($objectType);
		$backgroundJob->callback($room);
		$numDeletedRoomsActual = self::invokePrivate($backgroundJob, 'numDeletedRooms');
		$this->assertEquals($numDeletedRoomsExpected, $numDeletedRoomsActual, 'Invalid final quantity of rooms');
	}

	public static function dataCallback(): array {
		return [
			[Room::TYPE_CHANGELOG, '', 0],
			[Room::TYPE_GROUP, 'file', 1],
		];
	}
}