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<?php
/**
 * Copyright © eComBricks. All rights reserved.
 * See COPYING.txt for license details.
 */
namespace Ecombricks\Ui\DataProvider\Model\Form\Modifier;

/**
 * Model form data provider abstract modifier
 */
abstract class AbstractModifier implements \Magento\Ui\DataProvider\Modifier\ModifierInterface
{
    
    use \Ecombricks\Ui\DataProvider\Modifier\ModifierTrait;
    
    /**
     * Data scope
     */
    const DATA_SCOPE = 'data';
    
    /**
     * Container prefix
     */
    const CONTAINER_PREFIX = 'container_';
    
    /**
     * Meta config path
     */
    const META_CONFIG_PATH = '/arguments/data/config';
    
    /**
     * Registry
     * 
     * @var \Magento\Framework\Registry
     */
    protected $registry;
    
    /**
     * Model config
     * 
     * @var \Ecombricks\Framework\Model\ConfigInterface
     */
    protected $modelConfig;
    
    /**
     * Constructor
     * 
     * @param \Magento\Framework\Registry $registry
     * @param \Magento\Framework\Stdlib\ArrayManager $arrayManager
     * @param \Ecombricks\Framework\Model\ConfigInterface $modelConfig
     * @return void
     */
    public function __construct(
        \Magento\Framework\Registry $registry,
        \Magento\Framework\Stdlib\ArrayManager $arrayManager,
        \Ecombricks\Framework\Model\ConfigInterface $modelConfig
    )
    {
        $this->registry = $registry;
        $this->arrayManager = $arrayManager;
        $this->modelConfig = $modelConfig;
    }
    
    /**
     * Get model
     * 
     * @return \Magento\Framework\Model\AbstractModel
     */
    public function getModel()
    {
        return $this->registry->registry($this->modelConfig->getKey());
    }
    
    /**
     * Get model ID
     * 
     * @return int|null
     */
    public function getModelId()
    {
        return $this->getModel()->getId();
    }
    
    /**
     * Initialize model data
     * 
     * @return $this
     */
    protected function initializeModelData()
    {
        $modelId = $this->getModelId();
        if (!isset($this->data[$modelId])) {
            $this->data[$modelId] = [];
        }
        return $this;
    }
    
    /**
     * Check if has model data
     * 
     * @param string $path
     * @return bool
     */
    protected function hasModelData($path)
    {
        $this->initializeModelData();
        return $this->arrayManager->exists($path, $this->data[$this->getModelId()]);
    }
    
    /**
     * Get model data
     * 
     * @param string $path
     */
    protected function getModelData($path)
    {
        $this->initializeModelData();
        return $this->arrayManager->get($path, $this->data[$this->getModelId()]);
    }
    
    /**
     * Set model data
     * 
     * @param array $data
     * @param string $path
     * @return $this
     */
    protected function setModelData($data, $path)
    {
        $this->initializeModelData();
        $modelId = $this->getModelId();
        $this->data[$modelId] = $this->arrayManager->set($path, $this->data[$modelId], $data);
        return $this;
    }
    
    /**
     * Remove model data
     * 
     * @param string $path
     * @return $this
     */
    protected function removeModelData($path)
    {
        $this->initializeModelData();
        $modelId = $this->getModelId();
        $this->data[$modelId] = $this->arrayManager->remove($path, $this->data[$modelId]);
        return $this;
    }
    
    /**
     * Set model field value
     * 
     * @param string $fieldName
     * @param mixed|null $value
     * @return $this
     */
    protected function setModelFieldValue($fieldName, $value = null)
    {
        if (!$this->hasModelData($fieldName)) {
            $this->setModelData($value !== null ? $value : $this->getModel()->getData($fieldName), $fieldName);
        }
        return $this;
    }
    
}