AbstractItem.php

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<?php
namespace Magento\Quote\Model\Quote\Item;

use Magento\Quote\Model\Quote\Item;
use Magento\Framework\Api\AttributeValueFactory;

abstract class AbstractItem extends \Magento\Framework\Model\AbstractExtensibleModel implements
    \Magento\Catalog\Model\Product\Configuration\Item\ItemInterface
{
    protected $_parentItem = null;

    protected $_children = [];

    protected $_messages = [];

    protected $_optionsByCode;

    protected $productRepository;

    protected $priceCurrency;

    public function __construct(
        \Magento\Framework\Model\Context $context,
        \Magento\Framework\Registry $registry,
        \Magento\Framework\Api\ExtensionAttributesFactory $extensionFactory,
        AttributeValueFactory $customAttributeFactory,
        \Magento\Catalog\Api\ProductRepositoryInterface $productRepository,
        \Magento\Framework\Pricing\PriceCurrencyInterface $priceCurrency,
        \Magento\Framework\Model\ResourceModel\AbstractResource $resource = null,
        \Magento\Framework\Data\Collection\AbstractDb $resourceCollection = null,
        array $data = []
    ) {
        parent::__construct(
            $context,
            $registry,
            $extensionFactory,
            $customAttributeFactory,
            $resource,
            $resourceCollection,
            $data
        );
        $this->productRepository = $productRepository;
        $this->priceCurrency = $priceCurrency;
    }

    abstract public function getQuote();

    abstract public function getAddress();

    public function getProduct()
    {
        $product = $this->_getData('product');
        if ($product === null && $this->getProductId()) {
            $product = clone $this->productRepository->getById(
                $this->getProductId(),
                false,
                $this->getQuote()->getStoreId()
            );
            $this->setProduct($product);
        }

        $product->setFinalPrice(null);
        if (is_array($this->_optionsByCode)) {
            $product->setCustomOptions($this->_optionsByCode);
        }
        return $product;
    }

    public function getFileDownloadParams()
    {
        return null;
    }

    public function beforeSave()
    {
        parent::beforeSave();
        if ($this->getParentItem()) {
            $this->setParentItemId($this->getParentItem()->getId());
        }
        return $this;
    }

    public function setParentItem($parentItem)
    {
        if ($parentItem) {
            $this->_parentItem = $parentItem;
            $parentItem->addChild($this);
        }
        return $this;
    }

    public function getParentItem()
    {
        return $this->_parentItem;
    }

    public function getChildren()
    {
        return $this->_children;
    }

    public function addChild($child)
    {
        $this->setHasChildren(true);
        $this->_children[] = $child;
        return $this;
    }

    public function setMessage($messages)
    {
        $messagesExists = $this->getMessage(false);
        if (!is_array($messages)) {
            $messages = [$messages];
        }
        foreach ($messages as $message) {
            if (!in_array($message, $messagesExists)) {
                $this->addMessage($message);
            }
        }
        return $this;
    }

    public function addMessage($message)
    {
        $this->_messages[] = $message;
        return $this;
    }

    public function getMessage($string = true)
    {
        if ($string) {
            return join("\n", $this->_messages);
        }
        return $this->_messages;
    }

    public function removeMessageByText($text)
    {
        foreach ($this->_messages as $key => $message) {
            if ($message == $text) {
                unset($this->_messages[$key]);
            }
        }
        return $this;
    }

    public function clearMessage()
    {
        $this->unsMessage();
        // For older compatibility, when we kept message inside data array
        $this->_messages = [];
        return $this;
    }

    public function getStore()
    {
        return $this->getQuote()->getStore();
    }

    public function checkData()
    {
        $this->setHasError(false);
        $this->clearMessage();

        $qty = $this->_getData('qty');

        try {
            $this->setQty($qty);
        } catch (\Magento\Framework\Exception\LocalizedException $e) {
            $this->setHasError(true);
            $this->setMessage($e->getMessage());
        } catch (\Exception $e) {
            $this->setHasError(true);
            $this->setMessage(__('Item qty declaration error'));
        }

        try {
            $this->getProduct()->getTypeInstance()->checkProductBuyState($this->getProduct());
        } catch (\Magento\Framework\Exception\LocalizedException $e) {
            $this->setHasError(true)->setMessage($e->getMessage());
            $this->getQuote()->setHasError(
                true
            )->addMessage(
                __('Some of the products below do not have all the required options.')
            );
        } catch (\Exception $e) {
            $this->setHasError(true)->setMessage(__('Something went wrong during the item options declaration.'));
            $this->getQuote()->setHasError(true)->addMessage(__('We found an item options declaration error.'));
        }

        if ($this->getProduct()->getHasError()) {
            $this->setHasError(true)->setMessage(__('Some of the selected options are not currently available.'));
            $this->getQuote()->setHasError(true)->addMessage($this->getProduct()->getMessage(), 'options');
        }

        if ($this->getHasConfigurationUnavailableError()) {
            $this->setHasError(
                true
            )->setMessage(
                __('Selected option(s) or their combination is not currently available.')
            );
            $this->getQuote()->setHasError(
                true
            )->addMessage(
                __('Some item options or their combination are not currently available.'),
                'unavailable-configuration'
            );
            $this->unsHasConfigurationUnavailableError();
        }

        return $this;
    }

    public function getQty()
    {
        return $this->_getData('qty');
    }

    public function getTotalQty()
    {
        if ($this->getParentItem()) {
            return $this->getQty() * $this->getParentItem()->getQty();
        }
        return $this->getQty();
    }

    public function calcRowTotal()
    {
        $qty = $this->getTotalQty();
        // Round unit price before multiplying to prevent losing 1 cent on subtotal
        $total = $this->priceCurrency->round($this->getCalculationPriceOriginal()) * $qty;
        $baseTotal = $this->priceCurrency->round($this->getBaseCalculationPriceOriginal()) * $qty;

        $this->setRowTotal($this->priceCurrency->round($total));
        $this->setBaseRowTotal($this->priceCurrency->round($baseTotal));
        return $this;
    }

    public function getCalculationPrice()
    {
        $price = $this->_getData('calculation_price');
        if ($price === null) {
            if ($this->hasCustomPrice()) {
                $price = $this->getCustomPrice();
            } else {
                $price = $this->getConvertedPrice();
            }
            $this->setData('calculation_price', $price);
        }
        return $price;
    }

    public function getCalculationPriceOriginal()
    {
        $price = $this->_getData('calculation_price');
        if ($price === null) {
            if ($this->hasOriginalCustomPrice()) {
                $price = $this->getOriginalCustomPrice();
            } else {
                $price = $this->getConvertedPrice();
            }
            $this->setData('calculation_price', $price);
        }
        return $price;
    }

    public function getBaseCalculationPrice()
    {
        if (!$this->hasBaseCalculationPrice()) {
            if ($this->hasCustomPrice()) {
                $price = (double)$this->getCustomPrice();
                if ($price) {
                    $rate = $this->priceCurrency->convert($price, $this->getStore()) / $price;
                    $price = $price / $rate;
                }
            } else {
                $price = $this->getPrice();
            }
            $this->setBaseCalculationPrice($price);
        }
        return $this->_getData('base_calculation_price');
    }

    public function getBaseCalculationPriceOriginal()
    {
        if (!$this->hasBaseCalculationPrice()) {
            if ($this->hasOriginalCustomPrice()) {
                $price = (double)$this->getOriginalCustomPrice();
                if ($price) {
                    $rate = $this->priceCurrency->convert($price, $this->getStore()) / $price;
                    $price = $price / $rate;
                }
            } else {
                $price = $this->getPrice();
            }
            $this->setBaseCalculationPrice($price);
        }
        return $this->_getData('base_calculation_price');
    }

    public function getOriginalPrice()
    {
        $price = $this->_getData('original_price');
        if ($price === null) {
            $price = $this->priceCurrency->convert($this->getBaseOriginalPrice(), $this->getStore());
            $this->setData('original_price', $price);
        }
        return $price;
    }

    public function setOriginalPrice($price)
    {
        return $this->setData('original_price', $price);
    }

    public function getBaseOriginalPrice()
    {
        return $this->_getData('base_original_price');
    }

    public function setCustomPrice($value)
    {
        $this->setCalculationPrice($value);
        $this->setBaseCalculationPrice(null);
        return $this->setData('custom_price', $value);
    }

    public function getPrice()
    {
        return $this->_getData('price');
    }

    public function setPrice($value)
    {
        $this->setBaseCalculationPrice(null);
        $this->setConvertedPrice(null);
        return $this->setData('price', $value);
    }

    public function getConvertedPrice()
    {
        $price = $this->_getData('converted_price');
        if ($price === null) {
            $price = $this->priceCurrency->convert($this->getPrice(), $this->getStore());
            $this->setData('converted_price', $price);
        }
        return $price;
    }

    public function setConvertedPrice($value)
    {
        $this->setCalculationPrice(null);
        $this->setData('converted_price', $value);
        return $this;
    }

    public function __clone()
    {
        $this->setId(null);
        $this->_parentItem = null;
        $this->_children = [];
        $this->_messages = [];
        return $this;
    }

    public function isChildrenCalculated()
    {
        if ($this->getParentItem()) {
            $calculate = $this->getParentItem()->getProduct()->getPriceType();
        } else {
            $calculate = $this->getProduct()->getPriceType();
        }

        if (null !== $calculate &&
            (int)$calculate === \Magento\Catalog\Model\Product\Type\AbstractType::CALCULATE_CHILD
        ) {
            return true;
        }
        return false;
    }

    public function isShipSeparately()
    {
        if ($this->getParentItem()) {
            $shipmentType = $this->getParentItem()->getProduct()->getShipmentType();
        } else {
            $shipmentType = $this->getProduct()->getShipmentType();
        }

        if (null !== $shipmentType &&
            (int)$shipmentType === \Magento\Catalog\Model\Product\Type\AbstractType::SHIPMENT_SEPARATELY
        ) {
            return true;
        }
        return false;
    }

    public function getTotalDiscountAmount()
    {
        $totalDiscountAmount = 0;
        /* \Magento\Quote\Model\Quote\Item\AbstractItem[] */
        $children = $this->getChildren();
        if (!empty($children) && $this->isChildrenCalculated()) {
            foreach ($children as $child) {
                $totalDiscountAmount += $child->getDiscountAmount();
            }
        } else {
            $totalDiscountAmount = $this->getDiscountAmount();
        }
        return $totalDiscountAmount;
    }
}