<?php

declare(strict_types=1);

namespace App\Http\Controllers\Site;

use App\Http\Controllers\Controller;
use App\Models\AiModel;
use App\Models\Article;
use App\Models\Category;
use App\Models\Guide;
use App\Support\MarkdownRenderer;
use Illuminate\Contracts\View\View;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Http\Request;

class NewsController extends Controller
{
    public function __construct(
        private readonly MarkdownRenderer $markdownRenderer,
    ) {
    }

    public function index(Request $request): View
    {
        $builder = Article::query()->published()->with('category');

        if ($request->filled('q')) {
            $builder->whereFullText(['title', 'excerpt', 'body'], (string) $request->string('q'));
        }

        if ($request->filled('category')) {
            $builder->whereHas('category', function ($query) use ($request): void {
                $query->where('slug', (string) $request->string('category'));
            });
        }

        $categories = Category::query()
            ->where('type', 'news')
            ->where('is_active', true)
            ->withCount([
                'articles as published_articles_count' => fn (Builder $query): Builder => $query->published(),
            ])
            ->orderByDesc('published_articles_count')
            ->orderBy('name')
            ->get();

        $newsStats = [
            'total' => Article::query()->published()->count(),
            'today' => Article::query()->published()->whereDate('published_at', today())->count(),
            'high_source' => Article::query()->published()->where('source_level', 'high')->count(),
            'updated_7d' => Article::query()->published()->where('updated_at', '>=', now()->subDays(7))->count(),
        ];

        return view('public.news.index', [
            'items' => $builder->latest('published_at')->paginate(15)->withQueryString(),
            'categories' => $categories,
            'newsStats' => $newsStats,
            'filters' => $request->only(['q', 'category']),
            'sidebarModels' => AiModel::published()->orderByDesc('total_score')->limit(6)->get(),
            'sidebarGuides' => Guide::published()->latest('published_at')->limit(6)->get(),
        ]);
    }

    public function show(string $slug): View
    {
        /** @var Article $article */
        $article = Article::query()
            ->published()
            ->with(['category', 'source'])
            ->where('slug', $slug)
            ->firstOrFail();

        return view('public.news.show', [
            'item' => $article,
            'bodyHtml' => $this->markdownRenderer->render($article->body),
            'showRiskNotice' => $this->containsRiskKeyword($article->title.' '.$article->body),
            'sidebarModels' => AiModel::published()->orderByDesc('total_score')->limit(6)->get(),
            'sidebarGuides' => Guide::published()->latest('published_at')->limit(6)->get(),
        ]);
    }

    private function containsRiskKeyword(string $text): bool
    {
        return str_contains($text, '医疗') || str_contains($text, '法律') || str_contains($text, '投资');
    }
}