<?php
/**
 * @author Amasty Team
 * @copyright Copyright (c) Amasty (https://www.amasty.com)
 * @package Sales Rules Wizard for Magento 2 (System)
 */

namespace Amasty\SalesRuleWizard\Block\Adminhtml;

use Magento\Backend\Block\Template\Context;
use Magento\Backend\Block\Widget\Form\Renderer\Fieldset;
use Magento\Framework\App\ObjectManager;
use Magento\Framework\Data\FormFactory;
use Magento\Framework\Registry;
use Magento\Rule\Block\Conditions as BlockConditions;
use Magento\SalesRule\Model\RuleFactory;

class Conditions extends \Magento\SalesRule\Block\Adminhtml\Promo\Quote\Edit\Tab\Conditions
{
    /**
     * @var string
     */
    protected $_nameInLayout = 'conditions_apply_to';

    /**
     * @var RuleFactory|mixed
     */
    private $ruleFactory;

    public function __construct(
        Context $context,
        Registry $registry,
        FormFactory $formFactory,
        BlockConditions $conditions,
        Fieldset $rendererFieldset,
        array $data = [],
        ?RuleFactory $ruleFactory = null
    ) {
        $this->ruleFactory = $ruleFactory ?: ObjectManager::getInstance()->get(RuleFactory::class);
        parent::__construct($context, $registry, $formFactory, $conditions, $rendererFieldset, $data, $ruleFactory);
    }

    /**
     * Prepare form before rendering HTML
     *
     * @return $this
     */
    protected function _prepareForm()
    {
        $model = $this->ruleFactory->create();
        $form = $this->addTabToForm($model);
        $this->setForm($form);

        return \Magento\Backend\Block\Widget\Form\Generic::_prepareForm();
    }

    /**
     * Handles addition of conditions tab to supplied form.
     *
     * @param \Magento\SalesRule\Model\Rule $model
     * @param string $fieldsetId
     * @param string $formName
     * @return \Magento\Framework\Data\Form
     * @throws \Magento\Framework\Exception\LocalizedException
     */
    protected function addTabToForm(
        $model,
        $fieldsetId = 'conditions_fieldset',
        $formName = 'amasty_promowizard_apply_settings'
    ) {
        $conditionsFieldSetId = $model->getConditionsFieldSetId($formName);
        $newChildUrl = $this->getUrl(
            'sales_rule/promo_quote/newConditionHtml/form/' . $conditionsFieldSetId,
            ['form_namespace' => $formName]
        );

        /** @var \Magento\Framework\Data\Form $form */
        $form = $this->_formFactory->create();
        $form->setHtmlIdPrefix('rule_');
        $renderer = $this->_rendererFieldset
            ->setTemplate('Amasty_SalesRuleWizard::promo/fieldset.phtml')
            ->setNameInLayout('promo.wizard.fieldset')
            ->setNewChildUrl($newChildUrl)
            ->setFieldSetId($conditionsFieldSetId);

        $fieldset = $form->addFieldset(
            $fieldsetId,
            []
        )->setRenderer(
            $renderer
        );
        $fieldset->addField(
            'conditions',
            'text',
            [
                'name'           => 'conditions',
                'label'          => __('Conditions'),
                'title'          => __('Conditions'),
                'required'       => true,
                'data-form-part' => $formName
            ]
        )->setRule(
            $model
        )->setRenderer(
            $this->_conditions
        );

        $form->setValues($model->getData());
        $this->setConditionFormName($model->getConditions(), $formName);
        return $form;
    }

    /**
     * Handles addition of form name to condition and its conditions.
     *
     * @param \Magento\Rule\Model\Condition\AbstractCondition $conditions
     * @param string $formName
     * @return void
     */
    private function setConditionFormName(\Magento\Rule\Model\Condition\AbstractCondition $conditions, $formName)
    {
        $conditions->setFormName($formName);
        if ($conditions->getConditions() && is_array($conditions->getConditions())) {
            foreach ($conditions->getConditions() as $condition) {
                $this->setConditionFormName($condition, $formName);
            }
        }
    }
}