Add changelog preview when a new update is available (#1792)

Co-authored-by: Boy132 <mail@boy132.de>

app/Filament/Admin/Widgets/UpdateWidget.php

@@ -43,7 +43,18 @@ class UpdateWidget extends FormWidget
                     ->iconColor('warning')
                     ->schema([
                         TextEntry::make('info')
+                            ->hiddenLabel()
                             ->state(trans('admin/dashboard.sections.intro-update-available.content', ['latestVersion' => $this->softwareVersionService->latestPanelVersion()])),
+                        Section::make(trans('admin/dashboard.sections.intro-update-available.button_changelog'))
+                            ->icon('tabler-script')
+                            ->collapsible()
+                            ->collapsed()
+                            ->schema([
+                                TextEntry::make('changelog')
+                                    ->hiddenLabel()
+                                    ->state($this->softwareVersionService->latestPanelVersionChangelog())
+                                    ->markdown(),
+                            ]),
                     ])
                     ->headerActions([
                         Action::make('update')

app/Services/Helpers/SoftwareVersionService.php

@@ -7,6 +7,24 @@ use Illuminate\Support\Facades\Http;
 
 class SoftwareVersionService
 {
+    public function latestPanelVersionChangelog(): string
+    {
+        $key = 'panel:latest_version_changelog';
+        if (cache()->get($key) === 'error') {
+            cache()->forget($key);
+        }
+
+        return cache()->remember($key, now()->addMinutes(config('panel.cdn.cache_time', 60)), function () {
+            try {
+                $response = Http::timeout(5)->connectTimeout(1)->get('https://api.github.com/repos/pelican-dev/panel/releases/latest')->throw()->json();
+
+                return $response['body'];
+            } catch (Exception) {
+                return 'error';
+            }
+        });
+    }
+
     public function latestPanelVersion(): string
     {
         $key = 'panel:latest_version';

lang/en/admin/dashboard.php

@@ -17,6 +17,7 @@ return [
         'intro-update-available' => [
             'heading' => 'Update available',
             'content' => ':latestVersion is now available! Read our documentation to update your Panel.',
+            'button_changelog' => 'What\'s New?',
         ],
         'intro-no-update' => [
             'heading' => 'Your Panel is up to date',