<?php
namespace Zemez\Blog\Controller\Adminhtml\Category;

use Magento\Backend\App\Action;
use Magento\TestFramework\ErrorLog\Logger;

class Save extends \Magento\Backend\App\Action
{
    private $categoryFactory;

    protected $_session;

    /**
     * @param Action\Context $context
     */
    public function __construct(
        Action\Context $context,
        \Zemez\Blog\Model\CategoryFactory $categoryFactory
        //\Magento\Backend\Model\Session $session
    ) {
        //$this->_session = $session;
        $this->_session = $context->getSession();
        $this->categoryFactory = $categoryFactory;
        parent::__construct($context);
    }

    /**
     * {@inheritdoc}
     */
    protected function _isAllowed()
    {
        return $this->_authorization->isAllowed('Zemez_Blog::category_save');
    }

    /**
     * Save action
     *
     * @return \Magento\Framework\Controller\ResultInterface
     */
    public function execute()
    {
        $data = $this->getRequest()->getPostValue();
        /** @var \Magento\Backend\Model\View\Result\Redirect $resultRedirect */
        $resultRedirect = $this->resultRedirectFactory->create();
        if ($data) {
            /** @var \Zemez\Blog\Model\Category $model */
            $model = $this->categoryFactory->create();

            $id = $this->getRequest()->getParam('category_id');
            if ($id) {
                $model->load($id);
            }

            $model->setData($data);

            $this->_eventManager->dispatch(
                'blog_category_prepare_save',
                ['category' => $model, 'request' => $this->getRequest()]
            );

            try {
                $model->save();
                $this->messageManager->addSuccess(__('You saved this Category.'));
                $this->_session->setFormData(false);
                if ($this->getRequest()->getParam('back')) {
                    return $resultRedirect->setPath('*/*/edit', ['category_id' => $model->getId(), '_current' => true]);
                }
                return $resultRedirect->setPath('*/*/');
            } catch (\Magento\Framework\Exception\LocalizedException $e) {
                $this->messageManager->addError($e->getMessage());
            } catch (\RuntimeException $e) {
                $this->messageManager->addError($e->getMessage());
            } catch (\Exception $e) {
                $this->messageManager->addException($e, __('Something went wrong while saving the category.'));
            }

            $this->_getSession()->setFormData($data);
            return $resultRedirect->setPath('*/*/edit', ['category_id' => $this->getRequest()->getParam('category_id')]);
        }
        return $resultRedirect->setPath('*/*/');
    }
}