<?php

namespace Tests\Unit\Set\UseCases;

use App\Exceptions\BadRequestException;
use App\Set\Set as DomainSet;
use App\Set\UseCases\CreateSet\CreateSet;
use App\Set\UseCases\CreateSet\CreateSetRequest;
use Tests\Fakes\FakeElementRepository;
use Tests\Fakes\FakeSetRepository;
use Tests\TestCase;

class CreateSetTest extends TestCase
{
    private FakeSetRepository $setRepo;

    private FakeElementRepository $elementRepo;

    private CreateSet $createSet;

    protected function setUp(): void
    {
        $this->setRepo = new FakeSetRepository();
        $this->elementRepo = new FakeElementRepository();
        $this->createSet = new CreateSet(
            $this->setRepo,
            $this->elementRepo,
        );
    }

    public function testCreatesSet(): void
    {
        $set = $this->createSet->execute(
            new CreateSetRequest('Daily learning')
        );

        $this->assertInstanceOf(DomainSet::class, $set);
        $this->assertSame(1, $set->getId());
        $this->assertSame('Daily learning', $set->getName());
    }

    public function testCreatesRootElementForSet(): void
    {
        $set = $this->createSet->execute(
            new CreateSetRequest('Daily learning')
        );

        $elements = $this->elementRepo->findBySet($set);

        $this->assertCount(1, $elements);
        $this->assertSame('Daily learning', $elements[0]->getTitle());
        $this->assertSame($set->getId(), $elements[0]->getSet()->getId());
        $this->assertNull($elements[0]->getParentElement());
    }

    public function testThrowsWhenNameMissing(): void
    {
        $this->expectException(BadRequestException::class);
        $this->expectExceptionMessage('name is required');

        $this->createSet->execute(new CreateSetRequest(null));
    }
}