Generate Invoice PDF and Send via Email

In a Filament resource, we have a simple form to enter details for the invoice.

app/Filament/Resources/Invoices/Schemas/InvoiceForm.php:

use Filament\Schemas\Schema;
use Filament\Forms\Components\TextInput;
 
public static function configure(Schema $schema): Schema
{
    return $schema
        ->components([
            TextInput::make('customer_name')
                ->required(),
            TextInput::make('customer_email')
                ->required(),
            TextInput::make('product')
                ->required(),
            TextInput::make('price')
                ->numeric()
                ->required(),
        ]);
}

Two models lifecycle events are used when a record is being creating and created. Within the creating event, a serial is generated, and after the record is created, a job to generate a PDF is dispatched.