Rohstofflieferung: unit suffix, enter kg stored as grams

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/Filament/User/Resources/SpiceSupplierResource.php

@@ -15,6 +15,7 @@ use Illuminate\Database\Eloquent\SoftDeletingScope;
 
 use Filament\Forms\Components\Select;
 use Filament\Forms\Components\TextInput;
+use Filament\Forms\Get;
 
 
 use Filament\Forms\Components\DatePicker;
@@ -41,6 +42,7 @@ class SpiceSupplierResource extends Resource
                 ->required()
                 ->preload()
                 ->searchable()
+                ->live()
                 ->createOptionForm([
                     TextInput::make('name')->label('Name')->required()->maxLength(255),
                     Forms\Components\Select::make('unit')
@@ -58,17 +60,36 @@ class SpiceSupplierResource extends Resource
                 }),
             Select::make('supplier_id')
                 ->label('Lieferant')
-                ->relationship('supplier', 'name')  
+                ->relationship('supplier', 'name')
                 ->required()
-                ->preload()  
+                ->preload()
                 ->searchable(),
 
                 TextInput::make('amount')
                     ->label('Liefermenge')
                     ->numeric()
                     ->required()
-                    ->rules(['min:0.01'])
-                    ->disabled(fn($record) => !is_null($record)),
+                    ->rules(['min:0.001'])
+                    ->disabled(fn($record) => !is_null($record))
+                    ->suffix(function (Get $get) {
+                        $unit = \App\Models\Spice::find($get('spice_id'))?->unit;
+                        return match($unit) {
+                            'grams'  => 'kg',
+                            'pieces' => 'Stück',
+                            'liter'  => 'Liter',
+                            default  => null,
+                        };
+                    })
+                    ->formatStateUsing(function ($state, $record) {
+                        if ($record?->spice?->unit === 'grams') {
+                            return round($state / 1000, 3);
+                        }
+                        return $state;
+                    })
+                    ->dehydrateStateUsing(function ($state, Get $get) {
+                        $unit = \App\Models\Spice::find($get('spice_id'))?->unit;
+                        return $unit === 'grams' ? (float) $state * 1000 : $state;
+                    }),
                     
                 DatePicker::make('supplied_at')
                     ->label('Lieferdatum')