feat: implement discount and transport features in the quote system

- Added maximum discount settings configurable by the administrator.
- Implemented discount calculations in the quote confirmation process.
- Introduced transport options with associated costs, including handling for exceeding maximum piece limits.
- Updated frontend to display discounts and transport information in the quote summary.
- Created new database migrations for storing discount and transport settings.
- Developed a new Filament page for managing global discount settings.
- Enhanced email templates to include discount and transport details.
- Added tests to ensure proper functionality of discounts and transport calculations.

backoffice/app/Filament/Resources/ClienteResource.php

@@ -4,6 +4,7 @@ namespace App\Filament\Resources;
 
 use App\Filament\Resources\ClienteResource\Pages;
 use App\Models\Cliente;
+use App\Models\Impostazione;
 use App\Support\ClienteCredenziali;
 use Filament\Forms;
 use Filament\Forms\Form;
@@ -63,6 +64,36 @@ class ClienteResource extends Resource
                             ? 'Generata automaticamente. Ricordati di copiarla dopo il salvataggio: non sarà più leggibile.'
                             : 'Lascia vuoto per mantenere la password attuale, oppure genera/inserisci una nuova password.'),
                 ]),
+            Forms\Components\Section::make('Scontistica')
+                ->description(fn () => sprintf(
+                    'Sconti che il cliente può applicare al preventivo prima dell\'invio. Lascia vuoto per la regola base (1° sconto fino al %s%%, sconto extra fino al %s%% sul totale già scontato).',
+                    static::percentuale(Impostazione::scontiBase()['max_1']),
+                    static::percentuale(Impostazione::scontiBase()['max_2']),
+                ))
+                ->columns(2)
+                ->schema([
+                    Forms\Components\Toggle::make('sconti_abilitati')
+                        ->label('Può applicare sconti')
+                        ->default(true)
+                        ->live()
+                        ->columnSpanFull(),
+                    Forms\Components\TextInput::make('sconto_max_1')
+                        ->label('1° sconto massimo')
+                        ->numeric()
+                        ->minValue(0)
+                        ->maxValue(100)
+                        ->suffix('%')
+                        ->placeholder(fn () => static::percentuale(Impostazione::scontiBase()['max_1']).' (regola base)')
+                        ->visible(fn (Forms\Get $get) => (bool) $get('sconti_abilitati')),
+                    Forms\Components\TextInput::make('sconto_max_2')
+                        ->label('Sconto extra massimo')
+                        ->numeric()
+                        ->minValue(0)
+                        ->maxValue(100)
+                        ->suffix('%')
+                        ->placeholder(fn () => static::percentuale(Impostazione::scontiBase()['max_2']).' (regola base)')
+                        ->visible(fn (Forms\Get $get) => (bool) $get('sconti_abilitati')),
+                ]),
             Forms\Components\Section::make('Anagrafica')
                 ->description('Campi facoltativi.')
                 ->columns(2)
@@ -124,6 +155,19 @@ class ClienteResource extends Resource
                 ->schema([
                     Infolists\Components\TextEntry::make('username')->label('Nome utente')->copyable()->placeholder('—'),
                     Infolists\Components\TextEntry::make('created_at')->label('Cliente dal')->dateTime('d/m/Y H:i'),
+                    Infolists\Components\TextEntry::make('scontistica')
+                        ->label('Scontistica')
+                        ->state(function (Cliente $record): string {
+                            if (! $record->sconti_abilitati) {
+                                return 'Disabilitata';
+                            }
+                            $massimi = $record->scontiMassimi();
+                            $base = $record->sconto_max_1 === null && $record->sconto_max_2 === null ? ' (regola base)' : '';
+
+                            return sprintf('Fino al %s%% + extra fino al %s%%%s',
+                                static::percentuale($massimi['max_1']), static::percentuale($massimi['max_2']), $base);
+                        })
+                        ->columnSpanFull(),
                 ]),
             Infolists\Components\Section::make('Anagrafica')
                 ->columns(3)
@@ -140,6 +184,12 @@ class ClienteResource extends Resource
         ]);
     }
 
+    /** 50.00 -> "50", 12.50 -> "12,5" */
+    private static function percentuale(mixed $valore): string
+    {
+        return rtrim(rtrim(number_format((float) $valore, 2, ',', ''), '0'), ',');
+    }
+
     public static function getPages(): array
     {
         return [