<?php
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */

namespace Magento\Contact\Helper;

use Magento\Contact\Model\ConfigInterface;
use Magento\Customer\Api\Data\CustomerInterface;
use Magento\Customer\Helper\View as CustomerViewHelper;
use Magento\Framework\App\ObjectManager;
use Magento\Framework\App\Request\DataPersistorInterface;

/**
 * Contact base helper
 *
 * @deprecated 100.2.0
 * @see \Magento\Contact\Model\ConfigInterface
 */
class Data extends \Magento\Framework\App\Helper\AbstractHelper
{
    const XML_PATH_ENABLED = ConfigInterface::XML_PATH_ENABLED;

    /**
     * Customer session
     *
     * @var \Magento\Customer\Model\Session
     */
    protected $_customerSession;

    /**
     * @var \Magento\Customer\Helper\View
     */
    protected $_customerViewHelper;

    /**
     * @var DataPersistorInterface
     */
    private $dataPersistor;

    /**
     * @var array
     */
    private $postData = null;

    /**
     * @param \Magento\Framework\App\Helper\Context $context
     * @param \Magento\Customer\Model\Session $customerSession
     * @param CustomerViewHelper $customerViewHelper
     */
    public function __construct(
        \Magento\Framework\App\Helper\Context $context,
        \Magento\Customer\Model\Session $customerSession,
        CustomerViewHelper $customerViewHelper
    ) {
        $this->_customerSession = $customerSession;
        $this->_customerViewHelper = $customerViewHelper;
        parent::__construct($context);
    }

    /**
     * Check if enabled
     *
     * @return string|null
     * @deprecated 100.2.0 use \Magento\Contact\Api\ConfigInterface::isEnabled() instead
     */
    public function isEnabled()
    {
        return $this->scopeConfig->getValue(
            self::XML_PATH_ENABLED,
            \Magento\Store\Model\ScopeInterface::SCOPE_STORE
        );
    }

    /**
     * Get user name
     *
     * @return string
     */
    public function getUserName()
    {
        if (!$this->_customerSession->isLoggedIn()) {
            return '';
        }
        /**
         * @var \Magento\Customer\Api\Data\CustomerInterface $customer
         */
        $customer = $this->_customerSession->getCustomerDataObject();

        return trim($this->_customerViewHelper->getCustomerName($customer));
    }

    /**
     * Get user email
     *
     * @return string
     */
    public function getUserEmail()
    {
        if (!$this->_customerSession->isLoggedIn()) {
            return '';
        }
        /**
         * @var CustomerInterface $customer
         */
        $customer = $this->_customerSession->getCustomerDataObject();

        return $customer->getEmail();
    }

    /**
     * Get value from POST by key
     *
     * @param string $key
     * @return string
     */
    public function getPostValue($key)
    {
        if (null === $this->postData) {
            $this->postData = (array) $this->getDataPersistor()->get('contact_us');
            $this->getDataPersistor()->clear('contact_us');
        }

        if (isset($this->postData[$key])) {
            return (string) $this->postData[$key];
        }

        return '';
    }

    /**
     * Get Data Persistor
     *
     * @return DataPersistorInterface
     */
    private function getDataPersistor()
    {
        if ($this->dataPersistor === null) {
            $this->dataPersistor = ObjectManager::getInstance()
                ->get(DataPersistorInterface::class);
        }

        return $this->dataPersistor;
    }
}