WebAPP/app/Http/Controllers/Admin/FileCategoryController.php

<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use App\Models\FileCategory;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Str;

class FileCategoryController extends Controller
{
    public function store(Request $request): RedirectResponse
    {
        $request->validate([
            'name' => ['required', 'string', 'max:255'],
        ]);

        $slug = Str::slug($request->name);

        // Ensure unique slug
        $originalSlug = $slug;
        $counter = 1;
        while (FileCategory::where('slug', $slug)->exists()) {
            $slug = $originalSlug . '-' . $counter++;
        }

        $maxOrder = FileCategory::max('sort_order') ?? 0;

        FileCategory::create([
            'name' => $request->name,
            'slug' => $slug,
            'sort_order' => $maxOrder + 1,
        ]);

        return back()->with('success', __('admin.category_created'));
    }

    public function update(Request $request, FileCategory $category): RedirectResponse
    {
        $request->validate([
            'name' => ['required', 'string', 'max:255'],
            'is_active' => ['nullable', 'boolean'],
        ]);

        $category->update([
            'name' => $request->name,
            'is_active' => $request->boolean('is_active'),
        ]);

        return back()->with('success', __('admin.category_updated'));
    }

    public function destroy(FileCategory $category): RedirectResponse
    {
        if ($category->files()->exists()) {
            return back()->with('error', __('admin.category_not_empty'));
        }

        $category->delete();

        return back()->with('success', __('admin.category_deleted'));
    }
}