<?php

declare(strict_types=1);

use App\Domain\Cms\Repositories\ContentRepository;
use App\Domain\Cms\Services\SlugGenerator;
use App\Domain\Cms\ValueObjects\ContentSlug;

describe('SlugGenerator', function () {
    beforeEach(function () {
        $this->repository = Mockery::mock(ContentRepository::class);
        $this->slugGenerator = new SlugGenerator($this->repository);
    });

    it('generates slug from title', function () {
        $slug = $this->slugGenerator->generateFromTitle('My Awesome Page');

        expect($slug)->toBeInstanceOf(ContentSlug::class);
        expect($slug->toString())->toBe('my-awesome-page');
    });

    it('handles special characters in title', function () {
        $slug = $this->slugGenerator->generateFromTitle('Hello & World!');

        expect($slug->toString())->toBe('hello-world');
    });

    it('handles empty title', function () {
        $slug = $this->slugGenerator->generateFromTitle('');

        expect($slug->toString())->toStartWith('content-');
    });

    it('truncates long titles', function () {
        $longTitle = str_repeat('a', 300);
        $slug = $this->slugGenerator->generateFromTitle($longTitle);

        expect(strlen($slug->toString()))->toBeLessThanOrEqual(255);
    });

    it('generates unique slug when base slug exists', function () {
        $this->repository->shouldReceive('existsSlug')
            ->once()
            ->with(Mockery::on(fn ($slug) => $slug->toString() === 'my-page'))
            ->andReturn(true);

        $this->repository->shouldReceive('existsSlug')
            ->once()
            ->with(Mockery::on(fn ($slug) => $slug->toString() === 'my-page-1'))
            ->andReturn(false);

        $slug = $this->slugGenerator->generateUniqueFromTitle('My Page');

        expect($slug->toString())->toBe('my-page-1');
    });

    it('generates unique slug with multiple collisions', function () {
        $this->repository->shouldReceive('existsSlug')
            ->once()
            ->with(Mockery::on(fn ($slug) => $slug->toString() === 'my-page'))
            ->andReturn(true);

        $this->repository->shouldReceive('existsSlug')
            ->once()
            ->with(Mockery::on(fn ($slug) => $slug->toString() === 'my-page-1'))
            ->andReturn(true);

        $this->repository->shouldReceive('existsSlug')
            ->once()
            ->with(Mockery::on(fn ($slug) => $slug->toString() === 'my-page-2'))
            ->andReturn(false);

        $slug = $this->slugGenerator->generateUniqueFromTitle('My Page');

        expect($slug->toString())->toBe('my-page-2');
    });

    it('returns base slug when it does not exist', function () {
        $this->repository->shouldReceive('existsSlug')
            ->once()
            ->with(Mockery::on(fn ($slug) => $slug->toString() === 'my-page'))
            ->andReturn(false);

        $slug = $this->slugGenerator->generateUniqueFromTitle('My Page');

        expect($slug->toString())->toBe('my-page');
    });
});