contract

public function generateBirthdayContract(Birthday $birthday): string
    {
        $birdayService = new BirthdayService($this->container);
        $data = $birdayService->getBirthdayAsArrayFormated($birthday);

        $birthdayDateAsArray = explode('-', $data['schedule']['date']);
        $birthdayDateContract = $birthdayDateAsArray[2].$birthdayDateAsArray[1].$birthdayDateAsArray[0];
        $pdfName = [
            'contrat',
            strtoupper($data['customer']['lastname']),
            $birthdayDateContract,
            $data['birthday_id'],
        ];

        $pdfName = implode('_', $pdfName);
        $pdfName .= '.pdf';

        if (file_exists(Constants::BIRTHDAY_CONTRACT_STORAGE . $pdfName)) {
            return $pdfName;
        }

        $customer = $birthday->getCustomer($this->container);
        $customerAddress = $customer->getAddress($this->container);


        $birthdayContractTemplate = file_get_contents(Constants::BIRTHDAY_CONTRACT_CONTENT);

        $childLastname = $data['children'][0]['lastname'];
        $childFirstname = $data['children'][0]['firstname'];
        $childBirthdateAsArray = explode('-', $data['children'][0]['birthdate']);
        $childBirthdate = count($childBirthdateAsArray) === 3
            ? implode('/', array_reverse($childBirthdateAsArray))
            : ''
        ;
        $childAge = date('Y') - $childBirthdateAsArray[0];

        $birthdayDate = count($birthdayDateAsArray) === 3
            ? implode('/', array_reverse($birthdayDateAsArray))
            : ''
        ;
        $birthdayPackage = !is_null($data['package']) ? $data['package']['name'] : '';
        $birthdayNbChildren = $data['number_children'];
        $birthdayCake = !is_null($data['cake']) ? $data['cake']['name'] : '';
        $birthdayAdvance = $data['advance_payment'] . '€';
        $birthdayAdvanceDateAsArray = explode('-', $data['advance_payment_date']);
        $birthdayAdvanceDate = count($birthdayAdvanceDateAsArray) === 3
            ? implode('/', array_reverse($birthdayAdvanceDateAsArray))
            : ''
        ;
        $birthdayPaymentType = !is_null($data['payment_type']) ? $data['payment_type']['name'] : '';

        $parentName = strtoupper($data['customer']['lastname']) . ' ' . ucfirst($data['customer']['firstname']);
        $parentAddress = $customerAddress->getStreet() . ', '
            . $customerAddress->getZipCode() . ', '
            . $customerAddress->getCity()
        ;
        $parentPhone = empty($data['customer']['phone'])
            ? $data['customer']['mobile_phone']
            : $data['customer']['phone']
        ;
        $parentMail = $data['customer']['email'];

        $totalPrice = '';
        $birthdaySupplements = '';
        $toPaid = '';
        $closedOn = '';
        $closedBy = '';

        $values = [
            '%child_lastname%' => $childLastname,
            '%child_firstname%' => $childFirstname,
            '%child_age%' => $childAge,
            '%child_birthdate%' => $childBirthdate,
            '%birthday_date%' => $birthdayDate,
            '%birthday_package%' => $birthdayPackage,
            '%birthday_nb_children%' => $birthdayNbChildren,
            '%birthday_cake%' => $birthdayCake,
            '%birthday_advance%' => $birthdayAdvance,
            '%birthday_advance_date%' => $birthdayAdvanceDate,
            '%birthday_payment_type%' => $birthdayPaymentType,
            '%parent_name%' => $parentName,
            '%parent_address%' => $parentAddress,
            '%parent_phone%' => $parentPhone,
            '%parent_email%' => $parentMail,
            '%birthday_price%' => $totalPrice,
            '%birthday_supplements%' => $birthdaySupplements,
            '%birthday_to_paid%' => $toPaid,
            '%birthday_finished%' => $closedOn,
            '%birthday_finished_by%' => $closedBy
        ];

        $content = str_ireplace(array_keys($values), array_values($values), $birthdayContractTemplate);

        $pdf = new Pdf($content,
            ['commandOptions' =>
                [
                    'useExec' => false,
                    'escapeArgs' => false,
                    'procOptions' => array(
                        // This will bypass the cmd.exe which seems to be recommended on Windows
                        'bypass_shell' => true,
                        // Also worth a try if you get unexplainable errors
                        'suppress_errors' => true,
                    ),
                ]
            ]);

        $pdf->setOptions(array(
            'footer-font-size' => 8,
            'footer-font-name' => 'Cambria',
            'footer-html' => Constants::BIRTHDAY_CONTRACT_FOOTER
        ));


        if (!$pdf->saveAs(Constants::BIRTHDAY_CONTRACT_STORAGE . $pdfName)) {
            echo $pdf->getError();
            return null;
        }

        return $pdfName;
    }