Added configuration in the Admin

Helper/Data.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace Abelbm\DisableFrontend\Helper;
+
+use Magento\Framework\App\Helper\AbstractHelper;
+use Magento\Store\Model\ScopeInterface;
+
+class Data extends AbstractHelper{
+
+    /**
+     * Get value from config
+     *
+     * @author Abel Bolanos Martinez <[email protected]>
+     * @return mixed
+     */
+    public function getConfigValue() {
+        return $this->scopeConfig->getValue(
+            'admin/disable_frontend/show_as_frontend', ScopeInterface::SCOPE_WEBSITE
+        );
+    }
+}

Model/Config/Source/Custom.php

@@ -0,0 +1,21 @@
+<?php
+namespace Abelbm\DisableFrontend\Model\Config\Source;
+
+
+class Custom implements \Magento\Framework\Option\ArrayInterface{
+
+    /**
+     * Options for the admin config
+     *
+     * @author Abel Bolanos Martinez <[email protected]>
+     * @return array
+     */
+    public function toOptionArray()
+    {
+
+        return [
+            ['value' => 0, 'label' => __('Blank Page')],
+            ['value' => 1, 'label' => __('Admin')],
+        ];
+    }
+}

Observer/DisableFrontend.php

@@ -1,49 +1,61 @@
 <?php
 namespace Abelbm\DisableFrontend\Observer;
 use Magento\Framework\Event\ObserverInterface;
+use Magento\Framework\App\ActionFlag;
+use Magento\Framework\App\Response\RedirectInterface;
+use Magento\Backend\Helper\Data;
+use Abelbm\DisableFrontend\Helper\Data as DisableFrontendHelper;
 
 class DisableFrontend implements ObserverInterface{
 
     protected   $_actionFlag;
     protected   $redirect;
-    private     $HelperBackend;
+    private     $helperBackend;
     private     $logger;
-
+    private     $disableFrontendHelper;
+
     /**
-     * 
-     * @author Abel Bolanos Martinez <[email protected]> 
-     * @param \Magento\Framework\App\ActionFlag $actionFlag
-     * @param \Magento\Framework\Message\ManagerInterface $messageManager
-     * @param \Magento\Framework\App\Response\RedirectInterface $redirect
-     * @param \Magento\Backend\Helper\Data $HelperBackend
+     * DisableFrontend constructor.
+     *
+     * @author Abel Bolanos Martinez <[email protected]>
+     * @param ActionFlag $actionFlag
+     * @param RedirectInterface $redirect
+     * @param Data $helperBackend
+     * @param DisableFrontendHelper $disableFrontendHelper
      * @param \Psr\Log\LoggerInterface $logger
      */
     public function __construct(
-        \Magento\Framework\App\ActionFlag $actionFlag,
-        \Magento\Framework\App\Response\RedirectInterface $redirect,
-        \Magento\Backend\Helper\Data $HelperBackend,
+        ActionFlag $actionFlag,
+        RedirectInterface $redirect,
+        Data $helperBackend,
+        DisableFrontendHelper $disableFrontendHelper,
         \Psr\Log\LoggerInterface $logger
     ) {
         $this->_actionFlag = $actionFlag;
         $this->redirect = $redirect;
-        $this->HelperBackend = $HelperBackend;
+        $this->helperBackend = $helperBackend;
         $this->logger = $logger;
+        $this->disableFrontendHelper = $disableFrontendHelper;
     }
 
     /**
+     * Show an empty page(default) or redirect to Admin site.
+     * Depend in the config in
+     * Stores > Configuration > Advanced > Admin > Disable Frontend
      *
      * @author Abel Bolanos Martinez <[email protected]>
      * @param \Magento\Framework\Event\Observer $observer
      * @return void
      */
     public function execute(\Magento\Framework\Event\Observer $observer){
-        
-        //$this->logger->info('TEST LOGGER');
+
+        //$this->logger->info('TEST');
 
         $this->_actionFlag->set('', \Magento\Framework\App\Action\Action::FLAG_NO_DISPATCH, true);
 
-        //custom redirect
-        //$controller = $observer->getControllerAction();
-        //$this->redirect->redirect($controller->getResponse(),$this->HelperBackend->getHomePageUrl());
+        if($this->disableFrontendHelper->getConfigValue()){//redirect to Admin
+            $controller = $observer->getControllerAction();
+            $this->redirect->redirect($controller->getResponse(),$this->helperBackend->getHomePageUrl());
+        }
     }
 }

composer.json

@@ -12,7 +12,7 @@
         "php": "~5.5.0|~5.6.0|~7.0.0"
     },
     "type": "magento2-module",
-    "version": "1.0.3",
+    "version": "1.1.0",
     "license": [
         "AGPL-3.0"
     ],

etc/adminhtml/system.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0"?>
+<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Config:etc/system_file.xsd">
+    <system>
+        <section id="admin">
+            <group id="disable_frontend" translate="label" type="text" sortOrder="9999" showInDefault="1" showInWebsite="0" showInStore="0">
+                <label>Disable Frontend</label>
+                <field id="show_as_frontend" translate="label" type="select" sortOrder="1" showInDefault="1" showInWebsite="0" showInStore="0">
+                    <label>Show frontend as</label>
+                    <source_model>Abelbm\DisableFrontend\Model\Config\Source\Custom</source_model>
+                </field>
+            </group>
+        </section>
+    </system>
+</config>

etc/module.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0"?>
 <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
-    <module name="Abelbm_DisableFrontend" setup_version="1.0.3">
+    <module name="Abelbm_DisableFrontend" setup_version="1.1.0">
         <sequence>
             <module name="Magento_Store"/>
         </sequence>