<?php

declare(strict_types=1);

namespace App\Tests\Security;

use App\BusProNet\ApiClient;
use App\BusProNet\Model\CrmAttributes;
use App\BusProNet\Model\PersonalData;
use App\Entity\User;
use App\Security\BpnAuthenticator;
use App\Security\Crypt;
use App\Security\Role;
use App\Service\ProfileCompletenessChecker;
use Doctrine\ORM\EntityManagerInterface;
use Doctrine\ORM\EntityRepository;
use PHPUnit\Framework\TestCase;
use Psr\Log\LoggerInterface;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
use Symfony\Component\Security\Http\Authenticator\Passport\Badge\UserBadge;

/**
 * Covers who may grant roles: BusPro backend users can edit their own CRM selections, so the
 * import must not be a channel for privilege escalation.
 */
class BpnAuthenticatorTest extends TestCase
{
    public function testNewAccountIsSeededWithTheImportableRolesOnly(): void
    {
        $persisted = null;
        $authenticator = $this->authenticator(
            $this->crmAttributes([Role::ADMIN, Role::TEAMER, Role::GROUPS_ADMIN], ['SSL', 'SSL']),
            null,
            $persisted,
        );

        $user = $this->loadUser($authenticator);

        self::assertSame($persisted, $user);
        self::assertSame(['ROLE_USER', Role::TEAMER], $user->getRoles());
        self::assertSame(['SSL'], $user->getHotelCodes());
    }

    public function testExistingAccountKeepsThePrivilegedRolesAnAdministratorAssigned(): void
    {
        $existing = (new User('teamer@example.org'))
            ->setRoles([Role::TEAMER, Role::GROUPS_MANAGER])
            ->setHotelCodes(['DKS'])
        ;

        $persisted = null;
        $authenticator = $this->authenticator(
            $this->crmAttributes([Role::ADMIN, Role::CUSTOMER], ['SSL']),
            $existing,
            $persisted,
        );

        $user = $this->loadUser($authenticator);

        self::assertNull($persisted, 'an existing account must not be persisted again');
        // ROLE_TEAMER is gone with its CRM selection, ROLE_ADMIN is still not honoured, and the
        // administrator-granted ROLE_GROUPS_MANAGER survives.
        self::assertSame(['ROLE_USER', Role::CUSTOMER, Role::GROUPS_MANAGER], $user->getRoles());
        self::assertSame(['DKS'], $user->getHotelCodes(), 'hotel codes stay administrator-managed');
        self::assertNotNull($user->getLastLoginAt(), 'the rest of the profile is still synced');
    }

    public function testRoleGainedInBusProIsGrantedOnLogin(): void
    {
        $existing = (new User('teamer@example.org'))->setRoles([Role::CUSTOMER]);

        $persisted = null;
        $authenticator = $this->authenticator(
            $this->crmAttributes([Role::TEAMER], []),
            $existing,
            $persisted,
        );

        // The case myep-team depends on: somebody becomes a Teamer after their account exists.
        self::assertSame(['ROLE_USER', Role::TEAMER], $this->loadUser($authenticator)->getRoles());
    }

    public function testAccountWithoutAnyRoleIsHealedOnLogin(): void
    {
        $existing = new User('teamer@example.org');

        $persisted = null;
        $authenticator = $this->authenticator(
            $this->crmAttributes([Role::TEAMER], []),
            $existing,
            $persisted,
        );

        self::assertSame(['ROLE_USER', Role::TEAMER], $this->loadUser($authenticator)->getRoles());
    }

    /**
     * @param string[] $roles
     * @param string[] $hotelCodes
     */
    private function crmAttributes(array $roles, array $hotelCodes): CrmAttributes
    {
        $attributes = new CrmAttributes();
        $attributes->roles = $roles;
        $attributes->hotelCodes = $hotelCodes;

        return $attributes;
    }

    private function authenticator(CrmAttributes $crmAttributes, ?User $existing, ?User &$persisted): BpnAuthenticator
    {
        $personalData = new PersonalData();
        $personalData->personId = 42;
        $personalData->addressId = 4711;

        $apiClient = $this->createMock(ApiClient::class);
        $apiClient->method('getPersonalData')->willReturn($personalData);
        $apiClient->method('getCrmAttributes')->willReturn($crmAttributes);

        $repository = $this->createMock(EntityRepository::class);
        $repository->method('findOneBy')->willReturn($existing);

        $entityManager = $this->createMock(EntityManagerInterface::class);
        $entityManager->method('getRepository')->willReturn($repository);
        $entityManager
            ->method('persist')
            ->willReturnCallback(static function (object $entity) use (&$persisted): void {
                $persisted = $entity;
            })
        ;

        $crypt = $this->createMock(Crypt::class);
        $crypt->method('encrypt')->willReturn('encrypted');

        $completenessChecker = $this->createMock(ProfileCompletenessChecker::class);
        $completenessChecker->method('isComplete')->willReturn(true);

        return new BpnAuthenticator(
            $this->createMock(UrlGeneratorInterface::class),
            $apiClient,
            $entityManager,
            $crypt,
            $completenessChecker,
            $this->createMock(LoggerInterface::class),
        );
    }

    private function loadUser(BpnAuthenticator $authenticator): User
    {
        $request = new Request();
        $request->request->set('_username', 'teamer@example.org');
        $request->request->set('_password', 'secret');

        $badge = $authenticator->authenticate($request)->getBadge(UserBadge::class);
        self::assertInstanceOf(UserBadge::class, $badge);

        $user = $badge->getUser();
        self::assertInstanceOf(User::class, $user);

        return $user;
    }
}