<?php

namespace Tests\Unit\Text\UseCases;

use App\Exceptions\BadRequestException;
use App\Text\Text;
use App\Text\TextRepository;
use App\Text\UseCases\CreateText;
use App\Text\UseCases\CreateTextRequest;
use App\User\UseCases\CreateUserDto;
use App\User\User;
use App\ValueObjects\EmailAddress;
use PHPUnit\Framework\TestCase;
use Tests\Fakes\FakeNodeRepository;
use Tests\Fakes\FakeTextRepository;
use Tests\Fakes\FakeUserRepository;

class CreateTextTest extends TestCase
{
    private FakeTextRepository $textRepo;

    private FakeUserRepository $userRepo;

    private FakeNodeRepository $nodeRepo;

    private CreateText $useCase;

    private User $user;

    protected function setUp(): void
    {
        $this->textRepo = new FakeTextRepository();
        $this->nodeRepo = new FakeNodeRepository();
        $this->userRepo = new FakeUserRepository();
        $this->user = $this->userRepo->create(new CreateUserDto(
            email: new EmailAddress('a@b.com'),
            passwordHash: '',
            isAdmin: false,
        ));
        $this->useCase = new CreateText(
            $this->textRepo,
            $this->nodeRepo,
        );
    }

    public function test_create_text(): void
    {
        $text = $this->useCase->execute(new CreateTextRequest(
            name: 'test',
            user: $this->user,
        ));
        $this->assertInstanceOf(TextRepository::class, $this->textRepo);
        $this->assertInstanceOf(Text::class, $text);
        $this->assertEquals('test', $text->getName());
    }

    public function test_creates_root_node_on_text_creation(): void
    {
        $text = $this->useCase->execute(new CreateTextRequest(
            name: 'my text',
            user: $this->user,
        ));

        $nodes = $this->nodeRepo->findByTextId($text->getId());
        $this->assertCount(1, $nodes);

        $rootNode = array_values($nodes)[0];
        $this->assertEquals('my text', $rootNode->getTitle());
        $this->assertNull($rootNode->getParentNode());
    }

    public function test_text_belongs_to_user(): void
    {
        $text = $this->useCase->execute(new CreateTextRequest(
            name: 'my text',
            user: $this->user,
        ));

        $this->assertSame($this->user, $text->getUser());
        $this->assertEquals($this->user->getId(), $text->getUser()->getId());
    }

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

        $this->useCase->execute(new CreateTextRequest(
            name: null,
            user: $this->user,
        ));
    }

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

        $this->useCase->execute(new CreateTextRequest(
            name: 'name',
            user: null,
        ));
    }
}