<?php

namespace App\Providers;

use App\Models\Category;
use App\Models\SiteSetting;
use Illuminate\Support\Str;
use Illuminate\Pagination\Paginator;
use Illuminate\Support\ServiceProvider;
use Illuminate\Support\Facades\View;
use Livewire\Livewire;

class AppServiceProvider extends ServiceProvider
{
    /**
     * Register any application services.
     */
    public function register(): void
    {
        $this->ensureIntlNumberFormatter();
    }

    /**
     * Bootstrap any application services.
     */
    public function boot(): void
    {
        $this->registerFilamentLivewireResolver();

        Paginator::defaultView('partials.pagination');

        View::composer('layouts.app', function ($view): void {
            $categories = Category::with([
                'children' => function ($query) {
                    $query->withCount('products')
                        ->orderBy('sort');
                },
            ])
                ->withCount('products')
                ->whereNull('parent_id')
                ->orderBy('sort')
                ->get();

            $view->with([
                'sidebarCategories' => $categories,
                'siteTitle' => SiteSetting::value('site_title', 'AI 工具导航'),
                'siteDescription' => SiteSetting::value('site_description', '精选 AI 工具与产品导航'),
                'siteLogo' => SiteSetting::value('site_logo'),
                'siteFooter' => SiteSetting::value('site_footer'),
                'gaId' => SiteSetting::value('ga_id'),
                'icpNumber' => SiteSetting::value('icp_number'),
                'socialLinks' => $this->parseSocialLinks(SiteSetting::value('social_links', '')),
            ]);
        });
    }

    private function ensureIntlNumberFormatter(): void
    {
        if (class_exists('NumberFormatter')) {
            return;
        }

        $polyfill = app_path('Support/NumberFormatter.php');
        if (is_file($polyfill)) {
            require_once $polyfill;
        }
    }

    private function registerFilamentLivewireResolver(): void
    {
        Livewire::resolveMissingComponent(function (string $name): ?string {
            if (! Str::startsWith($name, ['filament.', 'app.'])) {
                return null;
            }

            $class = collect(explode('.', $name))
                ->map(fn (string $segment) => Str::studly($segment))
                ->join('\\');

            return is_subclass_of($class, \Livewire\Component::class) ? $class : null;
        });
    }

    private function parseSocialLinks(?string $raw): array
    {
        if (!$raw) {
            return [];
        }

        $lines = preg_split('/\r\n|\r|\n/', $raw);
        $links = [];
        foreach ($lines as $line) {
            $line = trim($line);
            if ($line === '') {
                continue;
            }
            [$name, $url] = array_pad(explode('|', $line, 2), 2, '');
            if ($name && $url) {
                $links[] = ['name' => trim($name), 'url' => trim($url)];
            }
        }

        return $links;
    }
}