<?php

namespace Tests\Unit;

use App\Services\OuTreeService;
use Mockery;
use PHPUnit\Framework\Attributes\Test;
use Tests\TestCase;

class OuTreeServiceTest extends TestCase
{
    protected function setUp(): void
    {
        parent::setUp();

        // Drzewo jest cache'owane w pliku - czyścimy przed każdym testem,
        // żeby mock LDAP faktycznie był odpytywany.
        OuTreeService::flush();
    }

    #[Test]
    public function it_limits_tree_to_default_user_and_computer_ous(): void
    {
        config([
            'ldap.defaults.user_ou' => 'OU=oddzial,DC=example,DC=com',
            'ldap.defaults.computer_ou' => 'OU=Komputery,DC=example,DC=com',
        ]);

        $userOu = new class('OU=oddzial,DC=example,DC=com', 'oddzial')
        {
            public function __construct(public string $dn, public string $name) {}

            public function getDn(): string
            {
                return $this->dn;
            }

            public function getFirstAttribute(string $attribute): ?string
            {
                return $attribute === 'ou' ? $this->name : null;
            }
        };

        $nestedUserOu = new class('OU=Users,OU=oddzial,DC=example,DC=com', 'Users')
        {
            public function __construct(public string $dn, public string $name) {}

            public function getDn(): string
            {
                return $this->dn;
            }

            public function getFirstAttribute(string $attribute): ?string
            {
                return $attribute === 'ou' ? $this->name : null;
            }
        };

        $computerOu = new class('OU=Komputery,DC=example,DC=com', 'Komputery')
        {
            public function __construct(public string $dn, public string $name) {}

            public function getDn(): string
            {
                return $this->dn;
            }

            public function getFirstAttribute(string $attribute): ?string
            {
                return $attribute === 'ou' ? $this->name : null;
            }
        };

        $computerChild = new class('OU=Workstations,OU=Komputery,DC=example,DC=com', 'Workstations')
        {
            public function __construct(public string $dn, public string $name) {}

            public function getDn(): string
            {
                return $this->dn;
            }

            public function getFirstAttribute(string $attribute): ?string
            {
                return $attribute === 'ou' ? $this->name : null;
            }
        };

        $externalOu = new class('OU=External,DC=example,DC=com', 'External')
        {
            public function __construct(public string $dn, public string $name) {}

            public function getDn(): string
            {
                return $this->dn;
            }

            public function getFirstAttribute(string $attribute): ?string
            {
                return $attribute === 'ou' ? $this->name : null;
            }
        };

        $query = Mockery::mock();
        $query->shouldReceive('select')->with(['ou', 'distinguishedname'])->andReturnSelf();
        $query->shouldReceive('get')->twice()->andReturn([
            $userOu,
            $nestedUserOu,
            $computerOu,
            $computerChild,
            $externalOu,
        ]);

        Mockery::mock('alias:\LdapRecord\Models\ActiveDirectory\OrganizationalUnit')
            ->shouldReceive('query')->twice()->andReturn($query);

        $service = new OuTreeService;

        $userTree = $service->tree('users');
        $computerTree = $service->tree('computers');

        $this->assertCount(1, $userTree);
        $this->assertSame('oddzial', $userTree[0]['name']);
        $this->assertCount(1, $userTree[0]['children']);
        $this->assertSame('Users', $userTree[0]['children'][0]['name']);

        $this->assertCount(1, $computerTree);
        $this->assertSame('Komputery', $computerTree[0]['name']);
        $this->assertCount(1, $computerTree[0]['children']);
        $this->assertSame('Workstations', $computerTree[0]['children'][0]['name']);

        Mockery::close();
    }

    #[Test]
    public function it_counts_actual_users_inside_each_ou_subtree(): void
    {
        config([
            'ldap.defaults.user_ou' => 'OU=Users,DC=example,DC=com',
            'ldap.defaults.computer_ou' => 'OU=Komputery,DC=example,DC=com',
            'ldap.defaults.groups_ou' => 'OU=Grupy,DC=example,DC=com',
        ]);

        $rootOu = new class('OU=Users,DC=example,DC=com', 'Users')
        {
            public function __construct(public string $dn, public string $name) {}

            public function getDn(): string
            {
                return $this->dn;
            }

            public function getFirstAttribute(string $attribute): ?string
            {
                return $attribute === 'ou' ? $this->name : null;
            }
        };

        $childOu = new class('OU=Developers,OU=Users,DC=example,DC=com', 'Developers')
        {
            public function __construct(public string $dn, public string $name) {}

            public function getDn(): string
            {
                return $this->dn;
            }

            public function getFirstAttribute(string $attribute): ?string
            {
                return $attribute === 'ou' ? $this->name : null;
            }
        };

        $ouQuery = Mockery::mock();
        $ouQuery->shouldReceive('select')->with(['ou', 'distinguishedname'])->andReturnSelf();
        $ouQuery->shouldReceive('get')->once()->andReturn([$rootOu, $childOu]);

        Mockery::mock('alias:\LdapRecord\Models\ActiveDirectory\OrganizationalUnit')
            ->shouldReceive('query')->once()->andReturn($ouQuery);

        // countObjectsInOu() zwraca liczbę obiektów w CAŁYM poddrzewie danego OU
        // (zapytanie rekursywne). Liczba przy OU nadrzędnym NIE może być sumą
        // z dziećmi - inaczej te same obiekty są liczone wielokrotnie
        // (błąd: root pokazywał 313 zamiast 121).
        $service = Mockery::mock(OuTreeService::class)->makePartial()->shouldAllowMockingProtectedMethods();
        $service->shouldReceive('countObjectsInOu')->with('OU=Users,DC=example,DC=com', 'users')->once()->andReturn(5);
        $service->shouldReceive('countObjectsInOu')->with('OU=Developers,OU=Users,DC=example,DC=com', 'users')->once()->andReturn(2);

        $tree = $service->tree('users');

        $this->assertCount(1, $tree);
        $this->assertSame(5, $tree[0]['count'], 'Licznik OU nadrzędnego = liczba w całym poddrzewie, bez podwójnego sumowania.');
        $this->assertSame(2, $tree[0]['children'][0]['count']);

        Mockery::close();
    }
}