<?php

declare(strict_types=1);

namespace App\Form\Model;

use Symfony\Component\Validator\Constraints as Assert;

/**
 * DTO for bank account information used in payment processing.
 */
class BankAccountDto
{
    #[Assert\NotBlank(message: 'Bitte geben Sie Ihre IBAN ein.')]
    #[Assert\Iban(message: 'Die eingegebene IBAN ist ungültig.')]
    public ?string $iban = null;

    #[Assert\NotBlank(message: 'Bitte geben Sie den Kontoinhaber ein.')]
    #[Assert\Length(
        min: 2,
        max: 70,
        minMessage: 'Der Kontoinhaber muss mindestens {{ limit }} Zeichen lang sein.',
        maxMessage: 'Der Kontoinhaber darf maximal {{ limit }} Zeichen lang sein.'
    )]
    public ?string $accountHolder = null;

    #[Assert\Length(
        max: 70,
        maxMessage: 'Der Bankname darf maximal {{ limit }} Zeichen lang sein.'
    )]
    public ?string $bankName = null;

    #[Assert\IsTrue(message: 'Bitte akzeptieren Sie das SEPA-Mandat.')]
    public bool $sepaMandateAccepted = false;

    public static function fromBankAccount(\App\BusProNet\Model\BankAccount $bankAccount): static
    {
        $instance = new static();
        $instance->iban = $bankAccount->iban;
        $instance->accountHolder = $bankAccount->holder;
        $instance->bankName = $bankAccount->bankName;
        $instance->sepaMandateAccepted = true;

        return $instance;
    }

    /**
     * Returns IBAN formatted with spaces for display (e.g., DE12 3456 7890 1234 5678 90).
     */
    public function getFormattedIban(): ?string
    {
        if (null === $this->iban) {
            return null;
        }

        $cleanIban = $this->getIbanWithoutSpaces();

        return chunk_split($cleanIban, 4, ' ');
    }

    /**
     * Returns IBAN without spaces for storage and API submission.
     */
    public function getIbanWithoutSpaces(): ?string
    {
        if (null === $this->iban) {
            return null;
        }

        return (string) preg_replace('/\s+/', '', $this->iban);
    }
}