Add notification message when production mode is enabled

Helper/Config.php

@@ -25,21 +25,35 @@ public function __construct(Context $context, protected DeploymentConfig $deploy
     /**
      * Check whether the module is enabled.
      */
-    public function isEnabled(): bool
+    public function isEnabledInCurrentArea(): bool
     {
-        $enabled = $this->scopeConfig->isSetFlag('smile_debugtoolbar/configuration/enabled');
-        if (!$enabled) {
+        if (!$this->isEnabled()) {
             return false;
         }
 
-        $enabledAdmin = $this->scopeConfig->isSetFlag('smile_debugtoolbar/configuration/enabled_admin');
-        if (!$enabledAdmin && $this->isAdminArea()) {
+        if (!$this->isEnabledAdmin() && $this->isAdminArea()) {
             return false;
         }
 
         return true;
     }
 
+    /**
+     * Check whether the module is enabled globally.
+     */
+    public function isEnabled(): bool
+    {
+        return $this->scopeConfig->isSetFlag('smile_debugtoolbar/configuration/enabled');
+    }
+
+    /**
+     * Check whether the module is enabled for the admin area.
+     */
+    public function isEnabledAdmin(): bool
+    {
+        return $this->scopeConfig->isSetFlag('smile_debugtoolbar/configuration/enabled_admin');
+    }
+
     /**
      * Get the config value for keep_last_execution.
      */

Model/Message/ProductionMode.php

@@ -0,0 +1,61 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Smile\DebugToolbar\Model\Message;
+
+use Magento\Framework\App\DeploymentConfig;
+use Magento\Framework\App\State;
+use Magento\Framework\Notification\MessageInterface;
+use Smile\DebugToolbar\Helper\Config;
+
+/**
+ * Add zone blocks to the toolbar.
+ */
+class ProductionMode implements MessageInterface
+{
+    public function __construct(
+        protected DeploymentConfig $deploymentConfig,
+        protected Config $configHelper
+    ) {
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getIdentity()
+    {
+        return 'smile_debugtoolbar_production_mode';
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function isDisplayed()
+    {
+        return $this->deploymentConfig->get(State::PARAM_MODE) !== State::MODE_PRODUCTION;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getText()
+    {
+        return __(
+            <<<'EOT'
+                The DebugToolbar module is not supposed to be installed on production environments.
+                It may expose sensitive information if it is enabled.
+            EOT
+        );
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getSeverity()
+    {
+        return $this->configHelper->isEnabled()
+            ? MessageInterface::SEVERITY_CRITICAL
+            : MessageInterface::SEVERITY_MAJOR;
+    }
+}

Observer/AddToolbar.php

@@ -42,7 +42,7 @@ public function __construct(
      */
     public function execute(Observer $observer)
     {
-        if (!$this->configHelper->isEnabled()) {
+        if (!$this->configHelper->isEnabledInCurrentArea()) {
             return;
         }
 

Plugin/App/Action/AbstractActionPlugin.php

@@ -25,7 +25,7 @@ public function __construct(protected DataHelper $dataHelper, protected ConfigHe
      */
     public function beforeDispatch(MagentoAction $subject, RequestInterface $request): array
     {
-        if ($this->configHelper->isEnabled()) {
+        if ($this->configHelper->isEnabledInCurrentArea()) {
             $className = get_class($subject);
             $className = preg_replace('!\\\\Interceptor$!', '', $className);
             $this->dataHelper->setValue('controller_classname', $className);

Plugin/App/CachePlugin.php

@@ -25,7 +25,7 @@ public function __construct(protected ConfigHelper $configHelper, protected Cach
      */
     public function aroundLoad(CacheInterface $subject, Closure $closure, string $identifier): mixed
     {
-        if (!$this->configHelper->isEnabled()) {
+        if (!$this->configHelper->isEnabledInCurrentArea()) {
             return $closure($identifier);
         }
 
@@ -54,7 +54,7 @@ public function aroundSave(
         array $tags = [],
         ?int $lifeTime = null
     ): bool {
-        if (!$this->configHelper->isEnabled()) {
+        if (!$this->configHelper->isEnabledInCurrentArea()) {
             return $closure($data, $identifier, $tags, $lifeTime);
         }
 
@@ -77,7 +77,7 @@ public function aroundSave(
      */
     public function aroundRemove(CacheInterface $subject, Closure $closure, string $identifier): bool
     {
-        if (!$this->configHelper->isEnabled()) {
+        if (!$this->configHelper->isEnabledInCurrentArea()) {
             return $closure($identifier);
         }
 

Plugin/App/HttpPlugin.php

@@ -24,7 +24,7 @@ public function __construct(protected DataHelper $dataHelper, protected ConfigHe
      */
     public function beforeLaunch(MagentoHttp $subject): array
     {
-        if ($this->configHelper->isEnabled()) {
+        if ($this->configHelper->isEnabledInCurrentArea()) {
             $this->dataHelper->startTimer('app_http');
         }
 

ViewModel/Loader.php

@@ -18,6 +18,6 @@ public function __construct(protected ConfigHelper $configHelper)
      */
     public function isToolbarEnabled(): bool
     {
-        return $this->configHelper->isEnabled();
+        return $this->configHelper->isEnabledInCurrentArea();
     }
 }

ViewModel/Toolbar.php

@@ -19,7 +19,7 @@ public function __construct(protected DataHelper $dataHelper, protected ConfigHe
      */
     public function isToolbarEnabled(): bool
     {
-        return $this->configHelper->isEnabled();
+        return $this->configHelper->isEnabledInCurrentArea();
     }
 
     /**

etc/adminhtml/di.xml

@@ -0,0 +1,9 @@
+<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
+    <type name="Magento\Framework\Notification\MessageList">
+    <arguments>
+        <argument name="messages" xsi:type="array">
+            <item name="smile_debugtoolbar" xsi:type="string">Smile\DebugToolbar\Model\Message\ProductionMode</item>
+        </argument>
+    </arguments>
+</type>
+</config>