<?php

namespace Modules\SystemConfig\Controllers;

use App\Controllers\BaseAdminController;
use Modules\SystemConfig\Models\SystemConfig;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpFoundation\RedirectResponse;

class ThemeController extends BaseAdminController
{
    public function index(Request $request): Response
    {
        $user = $this->getCurrentUser();
        if (!$user || !$user->isSuperAdmin()) {
            return new Response('Access Denied', 403);
        }

        $themesDir = dirname(dirname(dirname(dirname(__DIR__)))) . '/themes';
        $themes = [];

        if (is_dir($themesDir)) {
            $folders = array_diff(scandir($themesDir), ['.', '..']);
            foreach ($folders as $folder) {
                if (is_dir($themesDir . '/' . $folder)) {
                    $themes[$folder] = $this->getThemeInfo($themesDir . '/' . $folder, $folder);
                }
            }
        }

        $activeTheme = \get_active_theme();

        return $this->renderAdminView('systemconfig/views/admin/themes/index.twig', [
            'themes' => $themes,
            'activeTheme' => $activeTheme,
            'title' => 'Gerenciar Temas'
        ]);
    }

    public function activate(Request $request, string $theme): Response
    {
        $user = $this->getCurrentUser();
        if (!$user || !$user->isSuperAdmin()) {
            return new Response('Access Denied', 403);
        }

        $themesDir = dirname(dirname(dirname(dirname(__DIR__)))) . '/themes';
        if (!is_dir($themesDir . '/' . $theme)) {
            return new Response('Tema não encontrado', 404);
        }

        SystemConfig::updateOrCreate(
            ['system_config_key' => 'active_theme'],
            [
                'system_config_value' => $theme,
                'system_config_updated_by' => $user->users_id,
                'system_config_type' => 'string'
            ]
        );

        // Clear Twig cache
        $cacheDir = dirname(dirname(dirname(dirname(__DIR__)))) . '/cache/twig';
        if (is_dir($cacheDir)) {
            $this->rrmdir($cacheDir);
        }

        return new RedirectResponse(url('admin/themes'));
    }

    protected function getThemeInfo(string $path, string $slug): array
    {
        $info = [
            'slug' => $slug,
            'name' => $slug,
            'version' => '1.0.0',
            'author' => 'Desconhecido',
            'description' => '',
            'screenshot' => null,
            'is_customizable' => file_exists($path . '/customizer.json')
        ];

        $stylePath = $path . '/style.css';
        if (file_exists($stylePath)) {
            $content = file_get_contents($stylePath);
            if (preg_match('/Theme Name:\s*(.*)$/mi', $content, $matches)) {
                $info['name'] = trim($matches[1]);
            }
            if (preg_match('/Version:\s*(.*)$/mi', $content, $matches)) {
                $info['version'] = trim($matches[1]);
            }
            if (preg_match('/Author:\s*(.*)$/mi', $content, $matches)) {
                $info['author'] = trim($matches[1]);
            }
            if (preg_match('/Description:\s*(.*)$/mi', $content, $matches)) {
                $info['description'] = trim($matches[1]);
            }
        }

        if (file_exists($path . '/screenshot.png')) {
            $info['screenshot'] = '/themes/' . $slug . '/screenshot.png';
        } elseif (file_exists($path . '/screenshot.jpg')) {
            $info['screenshot'] = '/themes/' . $slug . '/screenshot.jpg';
        }

        return $info;
    }

    private function rrmdir($dir)
    {
        if (is_dir($dir)) {
            $objects = scandir($dir);
            foreach ($objects as $object) {
                if ($object != "." && $object != "..") {
                    if (is_dir($dir . DIRECTORY_SEPARATOR . $object) && !is_link($dir . "/" . $object)) {
                        $this->rrmdir($dir . DIRECTORY_SEPARATOR . $object);
                    } else {
                        unlink($dir . DIRECTORY_SEPARATOR . $object);
                    }
                }
            }
            rmdir($dir);
        }
    }
}