<?php

declare(strict_types=1);

namespace Tests\Feature;

use App\Blog\Support\PageCacheMiddleware;
use App\Blog\Support\ThemeManager;
use App\Models\Category;
use App\Models\Post;
use App\Models\User;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Tests\TestCase;

class LlmsFeedTest extends TestCase
{
    use RefreshDatabase;

    private User $author;

    private Category $category;

    protected function setUp(): void
    {
        parent::setUp();

        $this->seed();

        $this->author = User::query()->where('email', 'admin@laralog.test')->firstOrFail();
        $this->category = Category::create([
            'name' => '索引',
            'slug' => 'llms-cat',
        ]);
    }

    public function test_llms_txt_lists_new_published_posts_and_skips_drafts(): void
    {
        $published = $this->makePost('给 Agent 看的新文章', 'agent-new-post', 'published');
        $this->makePost('还没发布', 'agent-draft', 'draft');

        $this->get('/llms.txt')
            ->assertOk()
            ->assertHeader('Content-Type', 'text/plain; charset=utf-8')
            ->assertSee('给 Agent 看的新文章', false)
            ->assertSee('/posts/agent-new-post.md', false)
            ->assertSee($published->url, false)
            ->assertDontSee('还没发布', false);
    }

    public function test_markdown_export_is_live_and_hides_restricted_posts(): void
    {
        $this->makePost('Markdown 导出', 'md-export', 'published', '这里是正文。');

        $this->get('/posts/md-export.md')
            ->assertOk()
            ->assertHeader('Content-Type', 'text/markdown; charset=utf-8')
            ->assertSee('# Markdown 导出', false)
            ->assertSee('这里是正文。', false);

        $this->makePost('会员专享', 'members-only-md', 'published', '秘密', [
            'members_only' => true,
        ]);

        $this->get('/posts/members-only-md.md')->assertNotFound();
        $this->get('/llms.txt')->assertDontSee('会员专享', false);
    }

    public function test_llms_and_feeds_are_not_page_cached(): void
    {
        $this->makePost('缓存外的文章', 'no-cache-llms', 'published');
        PageCacheMiddleware::flush();

        $this->get('/llms.txt')->assertOk();
        $this->get('/rss.xml')->assertOk();
        $this->get('/posts/no-cache-llms.md')->assertOk();

        $this->assertSame(0, PageCacheMiddleware::count());
    }

    public function test_frontend_feed_links_open_in_a_new_tab(): void
    {
        app(ThemeManager::class)->activate('sablog');

        $this->get('/')
            ->assertOk()
            ->assertSee('target="_blank"', false)
            ->assertSee('rel="noopener noreferrer"', false)
            ->assertSee(route('feed.rss'), false)
            ->assertSee(route('feed.sitemap'), false)
            ->assertSee(route('feed.llms'), false);
    }

    /**
     * @param  array<string, mixed>  $meta
     */
    private function makePost(string $title, string $slug, string $status, string $content = '内容', array $meta = []): Post
    {
        return Post::create([
            'user_id' => $this->author->id,
            'category_id' => $this->category->id,
            'title' => $title,
            'slug' => $slug,
            'content' => $content,
            'content_format' => 'markdown',
            'status' => $status,
            'meta' => $meta,
            'published_at' => $status === 'published' ? now() : null,
        ]);
    }
}