Upa webhook flow

Block/Adminhtml/System/Config/Form/Field/UpaWebhookSetting.php

@@ -0,0 +1,65 @@
+<?php
+
+namespace Omise\Payment\Block\Adminhtml\System\Config\Form\Field;
+
+use Magento\Backend\Block\Template\Context;
+use Magento\Config\Block\System\Config\Form\Field;
+use Magento\Framework\App\Config\ScopeConfigInterface;
+use Magento\Framework\Data\Form\Element\AbstractElement;
+use Magento\Store\Model\ScopeInterface;
+
+class UpaWebhookSetting extends Field
+{
+    /**
+     * @var ScopeConfigInterface
+     */
+    private $scopeConfig;
+
+    /**
+     * @param Context $context
+     * @param ScopeConfigInterface $scopeConfig
+     * @param array $data
+     */
+    public function __construct(
+        Context $context,
+        ScopeConfigInterface $scopeConfig,
+        array $data = []
+    ) {
+        $this->scopeConfig = $scopeConfig;
+        parent::__construct($context, $data);
+    }
+
+    /**
+     * @param AbstractElement $element
+     * @return string
+     */
+    protected function _getElementHtml(AbstractElement $element)
+    {
+        $request = $this->getRequest();
+        $website = $request->getParam('website');
+        $store = $request->getParam('store');
+
+        if ($store) {
+            $scope = ScopeInterface::SCOPE_STORE;
+            $scopeId = $store;
+        } elseif ($website) {
+            $scope = ScopeInterface::SCOPE_WEBSITE;
+            $scopeId = $website;
+        } else {
+            $scope = ScopeConfigInterface::SCOPE_TYPE_DEFAULT;
+            $scopeId = null;
+        }
+
+        if ($this->scopeConfig->isSetFlag('payment/omise/is_upa_feature_flag_enabled', $scope, $scopeId)) {
+            $element->setValue('1');
+            $element->setDisabled(true);
+            $html = parent::_getElementHtml($element)
+                . '<input type="hidden" name="' . $element->getName() . '" value="1" />';
+        } else {
+            $html = parent::_getElementHtml($element);
+        }
+
+        return '<div data-mage-init="{&quot;Omise_Payment/js/upa-webhook-setting&quot;:{}}">'
+            . $html . '</div>';
+    }
+}