Plugins: Support markdown in custom plugin deprecation messages (#78251)

* feat: support markdown in custom deprecation messages

* fix: use a div wrapper for rendered markdown

* feat: update the default deprecation message

public/app/features/plugins/admin/components/PluginDetailsDeprecatedWarning.tsx

@@ -1,5 +1,6 @@
 import React, { useState } from 'react';
 
+import { renderMarkdown } from '@grafana/data';
 import { Alert } from '@grafana/ui';
 
 import { CatalogPlugin } from '../types';
@@ -13,16 +14,31 @@ export function PluginDetailsDeprecatedWarning(props: Props): React.ReactElement
   const { className, plugin } = props;
   const [dismissed, setDismissed] = useState(false);
   const isWarningVisible = plugin.isDeprecated && !dismissed;
-  let deprecationMessage = `This ${plugin.type} plugin is deprecated and has been removed from the catalog. No further updates will be made to the
-  plugin.`;
-
-  if (plugin.details?.statusContext) {
-    deprecationMessage += ` More information: ${plugin.details.statusContext}`;
-  }
 
   return isWarningVisible ? (
     <Alert severity="warning" title="Deprecated" className={className} onRemove={() => setDismissed(true)}>
-      <p>{deprecationMessage}</p>
+      <p>
+        This {plugin.type} plugin is{' '}
+        <a
+          className="external-link"
+          href="https://grafana.com/legal/plugin-deprecation/"
+          rel="noreferrer"
+          target="_blank"
+        >
+          deprecated
+        </a>{' '}
+        and has been removed from the catalog.
+      </p>
+
+      {/* Additional contextual deprecation message supporting markdown */}
+      {plugin.details?.statusContext && (
+        <div
+          className="markdown-html"
+          dangerouslySetInnerHTML={{
+            __html: renderMarkdown(plugin.details.statusContext),
+          }}
+        />
+      )}
     </Alert>
   ) : null;
 }

public/app/features/plugins/admin/pages/PluginDetails.test.tsx

@@ -744,32 +744,28 @@ describe('Plugin details page', () => {
     });
 
     it('should display a deprecation warning if the plugin is deprecated', async () => {
-      const { queryByText } = renderPluginDetails({
+      const { findByRole } = renderPluginDetails({
         id,
         isInstalled: true,
         isDeprecated: true,
       });
 
-      await waitFor(() =>
-        expect(queryByText(/plugin is deprecated and has been removed from the catalog/i)).toBeInTheDocument()
-      );
+      expect(await findByRole('link', { name: 'deprecated' })).toBeInTheDocument();
     });
 
     it('should not display a deprecation warning in the plugin is not deprecated', async () => {
-      const { queryByText } = renderPluginDetails({
+      const { queryByRole } = renderPluginDetails({
         id,
         isInstalled: true,
         isDeprecated: false,
       });
 
-      await waitFor(() =>
-        expect(queryByText(/plugin is deprecated and has been removed from the catalog/i)).not.toBeInTheDocument()
-      );
+      await waitFor(() => expect(queryByRole('link', { name: 'deprecated' })).not.toBeInTheDocument());
     });
 
     it('should display a custom deprecation message if the plugin has it set', async () => {
       const statusContext = 'A detailed explanation of why this plugin is deprecated.';
-      const { queryByText } = renderPluginDetails({
+      const { findByText, findByRole } = renderPluginDetails({
         id,
         isInstalled: true,
         isDeprecated: true,
@@ -779,9 +775,28 @@ describe('Plugin details page', () => {
         },
       });
 
-      const re = new RegExp(`No further updates will be made to the plugin. More information: ${statusContext}`, 'i');
+      expect(await findByRole('link', { name: 'deprecated' })).toBeInTheDocument();
+      expect(await findByText(statusContext)).toBeInTheDocument();
+    });
 
-      await waitFor(() => expect(queryByText(re)).toBeInTheDocument());
+    it('should be possible to render markdown inside a custom deprecation message', async () => {
+      const statusContext =
+        '**This is a custom deprecation message.** [Link 1](https://grafana.com) <a href="https://grafana.com" target="_blank">Link 2</a>';
+      const { findByText, findByRole } = renderPluginDetails({
+        id,
+        isInstalled: true,
+        isDeprecated: true,
+        details: {
+          statusContext,
+          links: [],
+        },
+      });
+
+      expect(await findByRole('link', { name: 'deprecated' })).toBeInTheDocument();
+      expect(await findByText('This is a custom deprecation message.')).toBeInTheDocument();
+      expect(await findByRole('link', { name: 'Link 1' })).toBeInTheDocument();
+      expect(await findByRole('link', { name: 'Link 2' })).toBeInTheDocument();
+      expect(await findByRole('link', { name: 'Link 2' })).toHaveAttribute('href', 'https://grafana.com');
     });
   });