add fieldset schema

Author: Baspa

src/Enums/Schema.php

@@ -10,4 +10,5 @@ enum Schema: string
 
     case Section = 'section';
     case Grid = 'grid';
+    case Fieldset = 'fieldset';
 }

src/Schemas/Fieldset.php

@@ -0,0 +1,65 @@
+<?php
+
+namespace Backstage\Fields\Schemas;
+
+use Backstage\Fields\Contracts\SchemaContract;
+use Backstage\Fields\Models\Schema;
+use Filament\Forms\Components\TextInput;
+use Filament\Forms\Components\Toggle;
+use Filament\Forms\Components\Fieldset as FilamentFieldset;
+use Filament\Schemas\Components\Grid;
+use Filament\Schemas\Components\Utilities\Get;
+
+class Fieldset extends Base implements SchemaContract
+{
+    public static function getDefaultConfig(): array
+    {
+        return [
+            ...parent::getDefaultConfig(),
+            'label' => null,
+            'columns' => 1,
+            'collapsible' => false,
+            'collapsed' => false,
+        ];
+    }
+
+    public static function make(string $name, Schema $schema): FilamentFieldset
+    {
+        $fieldset = FilamentFieldset::make($schema->config['label'] ?? self::getDefaultConfig()['label'])
+            ->columns($schema->config['columns'] ?? self::getDefaultConfig()['columns'])
+            ->collapsible($schema->config['collapsible'] ?? self::getDefaultConfig()['collapsible'])
+            ->collapsed($schema->config['collapsed'] ?? self::getDefaultConfig()['collapsed']);
+
+        return $fieldset;
+    }
+
+    public function getForm(): array
+    {
+        return [
+            Grid::make(2)
+                ->schema([
+                    TextInput::make('config.label')
+                        ->label(__('Label'))
+                        ->live(onBlur: true),
+                    TextInput::make('config.columns')
+                        ->label(__('Columns'))
+                        ->numeric()
+                        ->minValue(1)
+                        ->maxValue(12)
+                        ->default(1)
+                        ->live(onBlur: true),
+                ]),
+            Grid::make(2)
+                ->schema([
+                    Toggle::make('config.collapsible')
+                        ->label(__('Collapsible'))
+                        ->inline(false)
+                        ->live(),
+                    Toggle::make('config.collapsed')
+                        ->label(__('Collapsed'))
+                        ->inline(false)
+                        ->visible(fn (Get $get): bool => $get('config.collapsible')),
+                ]),
+        ];
+    }
+}