<?php

namespace Modules\Sitemap\Http\Controllers;

use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use Spatie\Crawler\Crawler;
use Spatie\Sitemap\SitemapGenerator;
use Psr\Http\Message\UriInterface;
use Modules\Sitemap\Models\SitemapConfig;

class SitemapController extends Controller
{
    public function index()
    {
        $path = public_path('sitemap.xml');

        if (!file_exists($path)) {
            return response('Sitemap not found.', 404);
        }

        return response()->file($path, [
            'Content-Type' => 'application/xml',
        ]);
    }

    public function generate(Request $request)
    {
        $path = public_path('sitemap.xml');

        $sitemapConfig = SitemapConfig::active()->latest()->first();
        $sitemapExcludes = $sitemapConfig->sitemap_excludes;
        $ignoreRobots = $sitemapConfig->ignore_robot;

        if (is_string($sitemapExcludes)) {
            $sitemapExcludes = array_map('trim', explode(',', $sitemapExcludes));
        }

        $generator = SitemapGenerator::create(config('app.url'))
            ->configureCrawler(function (Crawler $crawler) use ($ignoreRobots, $sitemapConfig) {
                if ($ignoreRobots) {
                    $crawler->ignoreRobots();
                }
                if ($sitemapConfig->max_depth) {
                    $crawler->setMaximumDepth($sitemapConfig->max_depth);
                }
            })
            ->shouldCrawl(function (UriInterface $url) use ($sitemapExcludes) {
                $path = $url->getPath();
                foreach ($sitemapExcludes as $exclude) {
                    if (str_starts_with($path, $exclude)) {
                        return false;
                    }
                }
                return true;
            });

        if ($sitemapConfig->max_crawl_count) {
            $generator->setMaximumCrawlCount($sitemapConfig->max_crawl_count);
        }

        $generator->writeToFile($path);


        if (!file_exists($path)) {
            return response('Failed to generate sitemap.', 404);
        }

        return response()->file($path, [
            'Content-Type' => 'application/xml',
        ]);
    }
}