<?php

namespace App\Http\Controllers;

use App\Models\Category;
use Illuminate\Http\Request;

class CategoryController extends Controller
{
    public function index(Request $request)
    {
        $query = Category::query()->withCount('subcategories');

        if ($request->boolean('with_subcategories')) {
            $query->with('subcategories');
        }

        return response()->json(
            $query->orderBy('name')->get()
        );
    }

    public function store(Request $request)
    {
        $data = $request->validate([
            'name' => 'required|string|max:255|unique:categories,name',
        ]);

        $category = Category::create($data);

        return response()->json([
            'message' => 'Category created successfully',
            'category' => $category,
        ], 201);
    }

    public function show($id)
    {
        $category = Category::with('subcategories')->withCount('subcategories')->findOrFail($id);

        return response()->json($category);
    }

    public function update(Request $request, $id)
    {
        $category = Category::findOrFail($id);

        $data = $request->validate([
            'name' => 'required|string|max:255|unique:categories,name,' . $category->id,
        ]);

        $category->update($data);

        return response()->json([
            'message' => 'Category updated successfully',
            'category' => $category,
        ]);
    }

    public function destroy($id)
    {
        $category = Category::findOrFail($id);
        $category->delete();

        return response()->json(['message' => 'Category deleted successfully']);
    }
}