<?php

namespace Modules\Administration\Http\Controllers;

use App\Http\Controllers\Controller;
use App\Models\User;
use Illuminate\Pagination\LengthAwarePaginator;
use Illuminate\Pagination\Paginator;
use Illuminate\Support\Facades\Schema;
use Modules\Audit\Models\AuditLog;
use Modules\Media\Models\Media;
use Spatie\Permission\Models\Role;

final class DashboardController extends Controller
{
    public function __invoke()
    {
        return stylist_backend_view(stylist()->backend()->entryView(), [
            'userCount' => User::count(),
            'roleCount' => Schema::hasTable('roles') ? Role::count() : 0,
            'mediaCount' => Schema::hasTable('media') ? Media::count() : 0,
            'auditCount' => Schema::hasTable('audit_logs') ? AuditLog::count() : 0,
            'recentAudit' => $this->recentAudit(),
            'modules' => $this->modules(),
        ]);
    }

    private function recentAudit(): LengthAwarePaginator
    {
        if (! Schema::hasTable('audit_logs')) {
            return new LengthAwarePaginator(
                items: [],
                total: 0,
                perPage: 8,
                currentPage: Paginator::resolveCurrentPage('audit_page'),
                options: [
                    'path' => request()->url(),
                    'pageName' => 'audit_page',
                ],
            );
        }

        return AuditLog::query()
            ->latest('created_at')
            ->paginate(8, ['*'], 'audit_page')
            ->withQueryString();
    }

    private function modules(): LengthAwarePaginator
    {
        $statuses = json_decode((string) file_get_contents(base_path('modules_statuses.json')), true) ?: [];
        $modules = [];

        foreach (glob(base_path('Modules/*/module.json')) ?: [] as $manifest) {
            $data = json_decode((string) file_get_contents($manifest), true) ?: [];
            $name = $data['name'] ?? basename(dirname($manifest));

            $modules[] = [
                'name' => $name,
                'version' => $data['version'] ?? '1.0.0',
                'enabled' => (bool) ($statuses[$name] ?? false),
            ];
        }

        usort($modules, fn (array $a, array $b): int => strcasecmp($a['name'], $b['name']));

        $pageName = 'modules_page';
        $perPage = 8;
        $currentPage = Paginator::resolveCurrentPage($pageName);

        return (new LengthAwarePaginator(
            items: array_slice($modules, ($currentPage - 1) * $perPage, $perPage),
            total: count($modules),
            perPage: $perPage,
            currentPage: $currentPage,
            options: [
                'path' => request()->url(),
                'pageName' => $pageName,
            ],
        ))->withQueryString();
    }
}