ekart/backend/app/Http/Controllers/CartController.php

<?php

namespace App\Http\Controllers;

use App\Actions\AddProductToCartAction;
use App\Actions\GetActiveUserCartAction;
use App\Actions\RemoveProductFromCartAction;
use App\Actions\UpdateProductInCartAction;
use App\Data\AddToCartDTO;
use App\Http\Requests\AddProductToCartRequest;
use App\Http\Requests\RemoveProductFromCartRequest;
use App\Http\Requests\UpdateProductInCartRequest;
use App\Http\Resources\CartResource;
use Illuminate\Support\Facades\Auth;

class CartController extends Controller
{
    /**
     * Store a newly created resource in storage.
     */
    public function store(AddProductToCartRequest $request, AddProductToCartAction $addProductAction)
    {
        $addToCartData = AddToCartDTO::fromRequest($request);

        $cart = $addProductAction->execute($addToCartData, Auth::user());

        return new CartResource($cart);

    }

    /**
     * Display the specified resource.
     */
    public function show(GetActiveUserCartAction $action)
    {
        return new CartResource($action->execute(Auth::user()));
    }

    /**
     * Update the specified resource in storage.
     */
    public function update(UpdateProductInCartRequest $request, UpdateProductInCartAction $action)
    {
        $updateCartData = AddToCartDTO::fromRequest($request);
        $cart = $action->execute($updateCartData, $request->user());

        return new CartResource($cart);
    }

    /**
     * Remove the specified resource from storage.
     */
    public function destroy(RemoveProductFromCartRequest $request, RemoveProductFromCartAction $action)
    {
        $user = $request->user();
        try {
            $cart = $action->execute($request->productId, $user);

            return new CartResource($cart);
        } catch (ModelNotFoundException $e) {

            Log::error('No active cart found when removing a product from cart.', [
                'user' => $user->id,
                'error' => $e->getMessage(),
            ]);

            return response()->json([
                'message' => 'No active cart found.',
            ], 404);

        } catch (MultipleRecordsFoundException $e) {
            Log::error('Multiple active carts found for the user', [
                'user' => $user->id,
                'error' => $e->getMessage(),
            ]);

            return response()->json([
                'message' => 'Multiple Active carts found.',
            ], 409);
        }

    }
}