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Edit File: CartService.php

<?php

namespace App\Services\User;

use App\Http\Resources\Api\User\ProductCartItemsResource;
use App\Models\CartItem;
use App\Models\Product;
use App\Services\BaseService;
use App\Traits\CartOrderTrait;

class CartService extends BaseService
{
    use CartOrderTrait;

public function __construct()
    {
        parent::__construct(CartItem::class);
    }

public function getCartItems()
    {
        $cartDetails = $this->getUserCartDetails(true);

if (isset($cartDetails['cart_items']) && !empty($cartDetails['cart_items'])) {
            $cartDetails['cart_items'] = ProductCartItemsResource::collection($cartDetails['cart_items']);
        }

return $cartDetails;
    }

private function getUserCartDetails(bool $includeCartItems = false)
    {
        $authUser = auth()->user();
        $userCartItems = CartItem::with('product')->where('user_id', $authUser->id)->get();

$cartHasItems = $userCartItems->isNotEmpty();

$cartTotalSum = $cartHasItems ? $this->calculateCartSummation($userCartItems) : 0;
        $isMinimumOrderReached = $cartHasItems ? $this->providerMinumumOrderAmount(
            $userCartItems->first()->provider_id,
            $cartTotalSum
        ) : false;

$response = [
            'details' => [
                'total_sum' => number_format($cartTotalSum, 2),
                'is_minimum_order_reached' => $isMinimumOrderReached,
                'is_user_set_location' => isset($authUser->lat) && isset($authUser->lng) && isset($authUser->neighborhood_to_delivered_id)
            ]
        ];

if ($includeCartItems) {
            $response['cart_items'] = $userCartItems;
        }

return $response;
    }

public function indpendentCartCalulations()
    {
        return $this->getUserCartDetails();
    }

public function create($request)
    {
        $product = Product::find($request['product_id']);

//check if another product is in cart for another provider
        if (CartItem::where([['user_id', auth()->id()], ['provider_id', '!=', $product->provider_id]])->exists()) {
            CartItem::where([['user_id', auth()->id()], ['provider_id', '!=', $product->provider_id]])->delete();
        }

$request['provider_id'] = $product->provider_id;

if (CartItem::where('user_id', auth()->id())->where('product_id', $product->id)->exists()) {
            $cartItem = CartItem::where('user_id', auth()->id())->where('product_id', $product->id)->first();

$cartItem->update(['quantity' => $request['quantity']]);

return [
                'key' => 'success',
                'msg' => __('apis.user_cart.item_qty_updated'),
            ];
        }

$this->model::create(
            array_merge(
                $request,
                [
                    'product_addons' => isset($request['classification']) && !empty($request['classification'])
                        ? array_column($request['classification'], 'addon_id') : null,
                ]
            )
        );
        return [
            'key' => 'success',
            'msg' => __('apis.user_cart.item_added'),
        ];
    }

public function updateQty($request, $id)
    {
        $isItemDeleted = false;
        $authUser = auth()->user();
        $cartItem = $this->model::where('user_id', $authUser->id)->where('id', $id)->first();

if (!$cartItem) {
            return [
                'key' => 'fail',
                'msg' => __('apis.user_cart.item_not_found'),
                'details' => []
            ];
        }

if ($request['quantity'] == 0) {
            $cartItem->delete();
            $isItemDeleted = true;
        } else {
            $cartItem->update($request);
        }

return [
            'key' => 'success',
            'msg' => $isItemDeleted ? __('apis.user_cart.item_removed') : __('apis.user_cart.item_qty_updated'),
            'details' => $this->getUserCartDetails()
        ];
    }

public function delete($id)
    {
        $cartItem = $this->model::where('user_id', auth()->id())->where('id', $id)->first();
        $cartItem->delete();

return [
            'key' => 'success',
            'msg' => __('apis.user_cart.item_removed'),
            'details' => $this->getUserCartDetails()
        ];
    }

public function deleteAllCartItems()
    {
        $this->model::where('user_id', auth()->id())->delete();

return [
            'key' => 'success',
            'msg' => __('apis.user_cart.cart_items_deleted'),
        ];
    }

public function getCartItemsCount()
    {
        return $this->model::where('user_id', auth()->id())->count();
    }
}

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