dry.example.2.php

final class ProduceStatementOfAccountHandler
{
    private $pdfGenerator;
    private $dataProvider;
    
    public function __construct(
        PdfGenerator $pdfGenerator,
        DefaultDataProvider $dataProvider
    ) {
        $this->pdfGenerator = $pdfGenerator;
        $this->dataProvider = $dataProvider;
    }
    
    public function invoke(Command $command): PdfId
    {
        $data = $this->dataProvider->provide($command->accountId());
        $id = $this->pdfGenerator->generate(PDFTemplate::STATEMENT_OF_ACCOUNT, $data);
        return $id;
    }
}

final class ProducePaymentOverdueNoticeHandler
{
    private $pdfGenerator;
    private $dataProvider;
    
    public function __construct(
        PdfGenerator $pdfGenerator,
        DefaultDataProvider $dataProvider
    ) {
        $this->pdfGenerator = $pdfGenerator;
        $this->dataProvider = $dataProvider;
    }
    
    public function invoke(Command $command): PdfId
    {
        $data = $this->dataProvider->provide($command->accountId());
        $id = $this->pdfGenerator->generate(PDFTemplate::PAYMENT_OVERDUE, $data);
        return $id;
    }
}