<?php

namespace App\Http\Controllers;

use App\Models\Category;
use App\Traits\StoresUploads;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Storage;

class CategoryController extends Controller
{
    use StoresUploads;

    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',
            'description' => 'nullable|string',
            'icon' => 'nullable|file|extensions:jpg,jpeg,png,gif,webp,bmp,svg|max:8192',
        ]);

        $category = Category::create([
            'name' => $data['name'],
            'description' => $data['description'] ?? null,
            'icon' => $request->hasFile('icon')
                ? $this->storeUpload($request->file('icon'), 'categories/icons')
                : null,
        ]);

        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' => 'sometimes|string|max:255|unique:categories,name,' . $category->id,
            'description' => 'nullable|string',
            'icon' => 'nullable|file|extensions:jpg,jpeg,png,gif,webp,bmp,svg|max:8192',
        ]);

        if (array_key_exists('name', $data)) {
            $category->name = $data['name'];
        }
        if (array_key_exists('description', $data)) {
            $category->description = $data['description'];
        }
        if ($request->hasFile('icon')) {
            if ($category->icon) {
                Storage::disk('public')->delete($category->icon);
            }
            $category->icon = $this->storeUpload($request->file('icon'), 'categories/icons');
        }

        $category->save();

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

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

        if ($category->icon) {
            Storage::disk('public')->delete($category->icon);
        }

        $category->delete();

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