Allow admins to change server egg (#811)

* add service that handles egg changing

* add "change egg" action to EditServer page

* add toggle for keeping old variables or not

app/Filament/Admin/Resources/ServerResource/Pages/EditServer.php

@@ -15,6 +15,7 @@ use App\Models\Server;
 use App\Models\ServerVariable;
 use App\Services\Databases\DatabaseManagementService;
 use App\Services\Databases\DatabasePasswordService;
+use App\Services\Eggs\EggChangerService;
 use App\Services\Servers\RandomWordService;
 use App\Services\Servers\ReinstallServerService;
 use App\Services\Servers\ServerDeletionService;
@@ -38,6 +39,7 @@ use Filament\Forms\Components\Tabs\Tab;
 use Filament\Forms\Components\TagsInput;
 use Filament\Forms\Components\Textarea;
 use Filament\Forms\Components\TextInput;
+use Filament\Forms\Components\Toggle;
 use Filament\Forms\Components\ToggleButtons;
 use Filament\Forms\Form;
 use Filament\Forms\Get;
@@ -474,7 +476,7 @@ class EditServer extends EditRecord
                             ])
                             ->schema([
                                 Select::make('egg_id')
-                                    ->disabledOn('edit')
+                                    ->disabled()
                                     ->prefixIcon('tabler-egg')
                                     ->columnSpan([
                                         'default' => 6,
@@ -485,7 +487,28 @@ class EditServer extends EditRecord
                                     ->relationship('egg', 'name')
                                     ->searchable()
                                     ->preload()
+                                    ->required()
+                                    ->hintAction(
+                                        Action::make('change_egg')
+                                            ->action(function (array $data, Server $server, EggChangerService $service) {
+                                                $service->handle($server, $data['egg_id'], $data['keepOldVariables']);
+
+                                                // Use redirect instead of fillForm to prevent server variables from duplicating
+                                                $this->redirect($this->getUrl(['record' => $server, 'tab' => '-egg-tab']), true);
+                                            })
+                                            ->form(fn (Server $server) => [
+                                                Select::make('egg_id')
+                                                    ->label('New Egg')
+                                                    ->prefixIcon('tabler-egg')
+                                                    ->options(fn () => Egg::all()->filter(fn (Egg $egg) => $egg->id !== $server->egg->id)->mapWithKeys(fn (Egg $egg) => [$egg->id => $egg->name]))
+                                                    ->searchable()
+                                                    ->preload()
                                                     ->required(),
+                                                Toggle::make('keepOldVariables')
+                                                    ->label('Keep old variables if possible?')
+                                                    ->default(true),
+                                            ])
+                                    ),
 
                                 ToggleButtons::make('skip_scripts')
                                     ->label('Run Egg Install Script?')->inline()

app/Services/Eggs/EggChangerService.php

@@ -0,0 +1,48 @@
+<?php
+
+namespace App\Services\Eggs;
+
+use App\Models\Egg;
+use App\Models\Server;
+use App\Models\ServerVariable;
+
+class EggChangerService
+{
+    public function handle(Server $server, Egg|int $newEgg, bool $keepOldVariables = true): void
+    {
+        if (!$newEgg instanceof Egg) {
+            $newEgg = Egg::findOrFail($newEgg);
+        }
+
+        if ($server->egg->id === $newEgg->id) {
+            return;
+        }
+
+        // Change egg id, default image and startup command
+        $server->forceFill([
+            'egg_id' => $newEgg->id,
+            'image' => array_values($newEgg->docker_images)[0],
+            'startup' => $newEgg->startup,
+        ])->saveOrFail();
+
+        $oldVariables = [];
+        if ($keepOldVariables) {
+            // Keep copy of old server variables
+            foreach ($server->serverVariables as $serverVariable) {
+                $oldVariables[$serverVariable->variable->env_variable] = $serverVariable->variable_value;
+            }
+        }
+
+        // Delete old server variables
+        ServerVariable::where('server_id', $server->id)->delete();
+
+        // Create new server variables
+        foreach ($newEgg->variables as $eggVariable) {
+            ServerVariable::create([
+                'server_id' => $server->id,
+                'variable_id' => $eggVariable->id,
+                'variable_value' => $oldVariables[$eggVariable->env_variable] ?? $eggVariable->default_value,
+            ]);
+        }
+    }
+}