<?php
/**
 * Mirasvit
 *
 * This source file is subject to the Mirasvit Software License, which is available at https://mirasvit.com/license/.
 * Do not edit or add to this file if you wish to upgrade the to newer versions in the future.
 * If you wish to customize this module for your needs.
 * Please refer to http://www.magentocommerce.com for more information.
 *
 * @category  Mirasvit
 * @package   mirasvit/module-rma
 * @version   2.0.26
 * @copyright Copyright (C) 2018 Mirasvit (https://mirasvit.com/)
 */



namespace Mirasvit\Rma\Model\Rule\Condition;

use Magento\Eav\Model\ResourceModel\Entity\Attribute;

/**
 * @method string getAttribute()
 * @method $this setAttribute(string $param)
 * @SuppressWarnings(PHPMD.CouplingBetweenObjects)
 * @SuppressWarnings(ExcessiveClassComplexity)
 * @SuppressWarnings(PHPMD.ExcessiveParameterList)
 */
class Product extends \Magento\Rule\Model\Condition\AbstractCondition
{
    public function __construct(
        \Mirasvit\Rma\Api\Service\Item\ItemManagement\QuantityInterface $itemQuantityManagement,
        Attribute\Set\CollectionFactory $entityAttributeSetCollectionFactory,
        \Magento\Catalog\Model\ProductFactory $productFactory,
        \Magento\Eav\Model\Config $config,
        \Magento\Catalog\Model\Product\Type $productType,
        \Magento\Backend\Model\Url $backendUrlManager,
        \Magento\Framework\Locale\FormatInterface $localeFormat,
        \Magento\Framework\Filesystem $filesystem,
        \Magento\Rule\Model\Condition\Context $context,
        array $data = []
    ) {
        $this->itemQuantityManagement              = $itemQuantityManagement;
        $this->entityAttributeSetCollectionFactory = $entityAttributeSetCollectionFactory;
        $this->productFactory                      = $productFactory;
        $this->config                              = $config;
        $this->productType                         = $productType;
        $this->backendUrlManager                   = $backendUrlManager;
        $this->localeFormat                        = $localeFormat;
        $this->assetRepo                           = $context->getAssetRepository();
        $this->filesystem                          = $filesystem;
        $this->context                             = $context;

        parent::__construct($context, $data);
    }

    /**
     * @var null
     */
    protected $entityAttributeValues = null;

    /**
     * @return false|\Magento\Eav\Model\Entity\Attribute\AbstractAttribute|\Magento\Framework\DataObject
     */
    public function getAttributeObject()
    {
        try {
            /* @noinspection PhpUndefinedMethodInspection */
            $obj = $this->config
                ->getAttribute('catalog_product', $this->getAttribute());
        } catch (\Exception $e) {
            $obj = new \Magento\Framework\DataObject();
            /* @noinspection PhpUndefinedMethodInspection */
            $obj->setEntity($this->productFactory->create())
                ->setFrontendInput('text');
        }

        return $obj;
    }

    /**
     * @param array &$attributes
     * @return void
     */
    protected function _addSpecialAttributes(array &$attributes)
    {
        $attributes = array_merge($attributes, [
            'attribute_set_id' => __('Attribute Set'),
            'category_ids'     => __('Category'),
            'qty'              => __('Quantity'),
            'type_id'          => __('Product Type'),
            'image'            => __('Base Image'),
            'thumbnail'        => __('Thumbnail'),
            'small_image'      => __('Small Image'),
            'image_size'       => __('Base Image Size (bytes)'),
            'thumbnail_size'   => __('Thumbnail Size (bytes)'),
            'small_image_size' => __('Small Image Size (bytes)'),
            'php'              => __('PHP Condition'),
        ]);
    }

    /**
     * {@inheritdoc}
     */
    public function loadAttributeOptions()
    {
        $productAttributes = $this->productFactory->create()->loadAllAttributes();
        $productAttributes->getAttributesByCode();

        $attributes = [];
        /** @var \Magento\Catalog\Model\ResourceModel\Eav\Attribute $attribute */
        foreach ($productAttributes as $attribute) {
            if (!$attribute->isAllowedForRuleCondition()) {
                continue;
            }
            $attributes[$attribute->getAttributeCode()] = $attribute->getFrontendLabel();
        }

        $this->_addSpecialAttributes($attributes);

        asort($attributes);
        $this->setAttributeOption($attributes);

        return $this;
    }

    /**
     * @return $this
     *
     * @throws \Magento\Framework\Exception\LocalizedException
     * @SuppressWarnings(PHPMD.CyclomaticComplexity)
     */
    protected function _prepareValueOptions()
    {
        // Check that both keys exist. Maybe somehow only one was set not in this routine, but externally.
        $selectReady = $this->getData('value_select_options');
        $hashedReady = $this->getData('value_option');
        if ($selectReady && $hashedReady) {
            return $this;
        }

        // Get array of select options. It will be used as source for hashed options
        $selectOptions = null;
        if ($this->getAttribute() === 'attribute_set_id') {
            $entityTypeId = $this->config
                ->getEntityType('catalog_product')->getId();
            $selectOptions = $this->entityAttributeSetCollectionFactory->create()
                ->setEntityTypeFilter($entityTypeId)
                ->load()
                ->toOptionArray();
        } elseif ($this->getAttribute() === 'type_id') {
            $selectOptions = $this->productType->getOptionArray();
        } elseif (is_object($this->getAttributeObject())) {
            $attributeObject = $this->getAttributeObject();
            if ($attributeObject->usesSource()) {
                /* @noinspection PhpUndefinedMethodInspection */
                if ($attributeObject->getFrontendInput() == 'multiselect') {
                    $addEmptyOption = false;
                } else {
                    $addEmptyOption = true;
                }
                $selectOptions = $attributeObject->getSource()->getAllOptions($addEmptyOption);
            }
        }

        // Set new values only if we really got them
        if ($selectOptions !== null) {
            // Overwrite only not already existing values
            if (!$selectReady) {
                $this->setData('value_select_options', $selectOptions);
            }
            if (!$hashedReady) {
                $hashedOptions = [];
                foreach ($selectOptions as $o) {
                    if (is_array($o['value'])) {
                        continue; // We cannot use array as index
                    }
                    $hashedOptions[$o['value']] = $o['label'];
                }
                $this->setData('value_option', $hashedOptions);
            }
        }

        return $this;
    }

    /**
     * Retrieve value by option.
     *
     * @param string $option
     *
     * @return string
     */
    public function getValueOption($option = null)
    {
        $this->_prepareValueOptions();

        return $this->getData('value_option' . ($option !== null ? '/' . $option : ''));
    }

    /**
     * {@inheritdoc}
     */
    public function getValueSelectOptions()
    {
        $this->_prepareValueOptions();

        return $this->getData('value_select_options');
    }

    /**
     * Retrieve after element HTML.
     *
     * @return string
     */
    public function getValueAfterElementHtml()
    {
        $html = '';

        switch ($this->getAttribute()) {
            case 'sku':
            case 'category_ids':
                $image = $this->assetRepo->getUrl('images/rule_chooser_trigger.gif');
                break;
        }

        if (!empty($image)) {
            $html = '<a href="javascript:void(0)" class="rule-chooser-trigger">
                <img src="' . $image . '" alt="" class="v-middle rule-chooser-trigger" title="'
                . __('Open Chooser') . '" /></a>';
        }

        return $html;
    }

    /**
     * {@inheritdoc}
     */
    public function getAttributeElement()
    {
        $element = parent::getAttributeElement();
        /* @noinspection PhpUndefinedMethodInspection */
        $element->setShowAsText(true);

        return $element;
    }

    /**
     * @param string $productCollection
     *
     * @return $this
     */
    public function collectValidatedAttributes($productCollection)
    {
        $attribute = $this->getAttribute();

        if (!in_array($attribute, ['category_ids', 'qty', 'php'])) {
            if ($attribute == 'image_size'
                || $attribute == 'small_image_size'
                || $attribute == 'thumbnail_size'
            ) {
                $attribute = str_replace('_size', '', $attribute);
            }

            $attributes = $this->getRule()->getCollectedAttributes();
            $attributes[$attribute] = true;
            $this->getRule()->setCollectedAttributes($attributes);
            $productCollection->addAttributeToSelect($attribute, 'left');
        }

        return $this;
    }

    /**
     * {@inheritdoc}
     */
    public function getInputType()
    {
        if ($this->getAttribute() === 'attribute_set_id'
            || $this->getAttribute() === 'type_id'
        ) {
            return 'select';
        }
        if (!is_object($this->getAttributeObject())) {
            return 'string';
        }
        switch ($this->getAttributeObject()->getFrontendInput()) {
            case 'select':
                return 'select';

            case 'multiselect':
                return 'multiselect';

            case 'date':
                return 'date';

            case 'boolean':
                return 'boolean';

            default:
                return 'string';
        }
    }

    /**
     * {@inheritdoc}
     */
    public function getValueElementType()
    {
        if ($this->getAttribute() === 'attribute_set_id'
            || $this->getAttribute() === 'type_id'
        ) {
            return 'select';
        }
        if (!is_object($this->getAttributeObject())) {
            return 'text';
        }
        switch ($this->getAttributeObject()->getFrontendInput()) {
            case 'select':
            case 'boolean':
                return 'select';

            case 'multiselect':
                return 'multiselect';

            case 'date':
                return 'date';

            default:
                return 'text';
        }
    }

    /**
     * {@inheritdoc}
     */
    public function getValueElement()
    {
        $element = parent::getValueElement();
        if (is_object($this->getAttributeObject())) {
            switch ($this->getAttributeObject()->getFrontendInput()) {
                case 'date':
                    $element->setImage($this->assetRepo->getUrl('images/grid-cal.gif'));
                    break;
            }
        }

        return $element;
    }

    /**
     * @return string
     */
    public function getValueElementChooserUrl()
    {
        $url = false;
        switch ($this->getAttribute()) {
            case 'sku':
            case 'category_ids':
                $url = 'adminhtml/promo_widget/chooser'
                    . '/attribute/' . $this->getAttribute();
                if ($this->getJsFormObject()) {
                    $url .= '/form/' . $this->getJsFormObject();
                }
                break;
        }

        return $url !== false ? $this->backendUrlManager->getUrl($url) : '';
    }

    /**
     * {@inheritdoc}
     * @SuppressWarnings(PHPMD.CyclomaticComplexity)
     */
    public function loadArray($arr)
    {
        $this->setAttribute(isset($arr['attribute']) ? $arr['attribute'] : false);
        $attribute = $this->getAttributeObject();

        if ($attribute && $attribute->getBackendType() == 'decimal') {
            if (isset($arr['value'])) {
                if (!empty($arr['operator'])
                    && in_array($arr['operator'], ['!()', '()'])
                    && false !== strpos($arr['value'], ',')
                ) {
                    $tmp = [];
                    foreach (explode(',', $arr['value']) as $value) {
                        $tmp[] = $this->localeFormat->getNumber($value);
                    }
                    $arr['value'] = implode(',', $tmp);
                } else {
                    $arr['value'] = $this->localeFormat->getNumber($arr['value']);
                }
            } else {
                $arr['value'] = false;
            }
            $arr['is_value_parsed'] = isset($arr['is_value_parsed'])
                ? $this->localeFormat->getNumber($arr['is_value_parsed']) : false;
        }

        return parent::loadArray($arr);
    }

    /**
     * {@inheritdoc}
     */
    public function validate(\Magento\Framework\Model\AbstractModel $object)
    {
        $attrCode = $this->getAttribute();

        switch ($attrCode) {
            case 'category_ids':
                return $this->validateAttribute($object->getAvailableInCategories());
                break;

            case 'qty':
                return $this->validateAttribute($this->itemQuantityManagement->getQtyStock($object->getId()));
                break;

            case 'image_size':
            case 'small_image_size':
            case 'thumbnail_size':
                return $this->validatePicture($attrCode, $object);
                break;

            case 'php':
                return $this->validatePhp($object);
                break;

            default:
                if (!isset($this->entityAttributeValues[$object->getId()])) {
                    return $this->_validateAttribute($attrCode, $object);
                } else {
                    return $this->_validateEntityAttribute($attrCode, $object);
                }
                break;
        }
    }

    /**
     * @param string                                 $attrCode
     * @param \Magento\Framework\Model\AbstractModel $object
     * @return bool
     * @SuppressWarnings(PHPMD.EvalExpression)
     */
    private function _validateAttribute($attrCode, \Magento\Framework\Model\AbstractModel $object)
    {
        $attr = $object->getResource()->getAttribute($attrCode);

        if ($attr && $attr->getBackendType() == 'datetime' && !is_int($this->getValue())) {
            $this->setValue(strtotime($this->getValue()));
            $value = strtotime($object->getData($attrCode));

            return $this->validateAttribute($value);
        }

        if ($attr && $attr->getFrontendInput() == 'multiselect') {
            $value = $object->getData($attrCode);
            $value = strlen($value) ? explode(',', $value) : [];

            return $this->validateAttribute($value);
        }

        return parent::validate($object);
    }

    /**
     * @param string                                 $attrCode
     * @param \Magento\Framework\Model\AbstractModel $object
     * @return bool
     * @SuppressWarnings(PHPMD.EvalExpression)
     */
    private function _validateEntityAttribute($attrCode, \Magento\Framework\Model\AbstractModel $object)
    {
        $result = false; // any valid value will set it to TRUE
        $oldAttrValue = $object->hasData($attrCode) ? $object->getData($attrCode) : null;
        foreach ($this->entityAttributeValues[$object->getId()] as $value) {
            $attr = $object->getResource()->getAttribute($attrCode);
            if ($attr) {
                if ($attr->getBackendType() == 'datetime') {
                    $value = strtotime($value);
                } elseif ($attr->getFrontendInput() == 'multiselect') {
                    $value = strlen($value) ? explode(',', $value) : [];
                }
            }

            $object->setData($attrCode, $value);
            $result |= parent::validate($object);

            if ($result) {
                break;
            }
        }

        if ($oldAttrValue !== null) {
            $object->unsetData($attrCode);
        } else {
            $object->setData($attrCode, $oldAttrValue);
        }

        return (bool)$result;
    }

    /**
     * @param \Magento\Framework\Model\AbstractModel $object
     * @return bool
     * @SuppressWarnings(PHPMD.EvalExpression)
     */
    private function validatePhp(\Magento\Framework\Model\AbstractModel $object)
    {
        $object = $object->load($object->getId());
        extract($object->getData());
        $expr = 'return ' . $this->getValue() . ';';
        $value = eval($expr);

        if ($this->getOperator() == '==') {
            return $value;
        } else {
            return !$value;
        }
    }

    /**
     * @param string                                 $attrCode
     * @param \Magento\Framework\Model\AbstractModel $object
     * @return bool
     */
    private function validatePicture($attrCode, \Magento\Framework\Model\AbstractModel $object)
    {
        $imageCode = str_replace('_size', '', $attrCode);

        $imagePath = $object->getData($imageCode);
        $path = $this->filesystem->getDirectoryRead(
                \Magento\Framework\App\Filesystem\DirectoryList::MEDIA
            )->getAbsolutePath() . '/catalog/product' . $imagePath;

        $size = 0;
        if (file_exists($path) && is_file($path)) {
            $size = filesize($path);
        }

        return $this->validateAttribute($size);
    }

    /**
     * @return string
     */
    public function getJsFormObject()
    {
        return 'rule_conditions_fieldset';
    }
}
