<?php
/**
 * For the full copyright and license information, please view the
 * docs/licenses/LICENSE.txt file that was distributed with this source code.
 */

namespace PrestaShop\PrestaShop\Core\Form\IdentifiableObject\DataHandler;

use PrestaShop\PrestaShop\Core\CommandBus\CommandBusInterface;
use PrestaShop\PrestaShop\Core\Domain\Customer\Command\AddCustomerCommand;
use PrestaShop\PrestaShop\Core\Domain\Customer\Command\EditCustomerCommand;
use PrestaShop\PrestaShop\Core\Domain\Customer\ValueObject\Birthday;
use PrestaShop\PrestaShop\Core\Domain\Customer\ValueObject\CustomerId;
use PrestaShop\PrestaShop\Core\Group\Provider\DefaultGroupsProviderInterface;
use PrestaShop\PrestaShop\Core\Security\OpenSsl\OpenSSL;
use PrestaShop\PrestaShop\Core\Security\PasswordGenerator;

/**
 * Saves or updates customer data submitted in form
 */
final class CustomerFormDataHandler implements FormDataHandlerInterface
{
    /**
     * @var CommandBusInterface
     */
    private $bus;

    /**
     * @var int
     */
    private $contextShopId;

    /**
     * @var bool
     */
    private $isB2bFeatureEnabled;

    /**
     * @var DefaultGroupsProviderInterface
     */
    private $defaultGroupsProvider;

    /**
     * @param CommandBusInterface $bus
     * @param int $contextShopId
     * @param bool $isB2bFeatureEnabled
     * @param DefaultGroupsProviderInterface $defaultGroupsProvider
     */
    public function __construct(
        CommandBusInterface $bus,
        $contextShopId,
        $isB2bFeatureEnabled,
        DefaultGroupsProviderInterface $defaultGroupsProvider
    ) {
        $this->bus = $bus;
        $this->contextShopId = $contextShopId;
        $this->isB2bFeatureEnabled = $isB2bFeatureEnabled;
        $this->defaultGroupsProvider = $defaultGroupsProvider;
    }

    /**
     * {@inheritdoc}
     */
    public function create(array $data)
    {
        $command = $this->buildCustomerAddCommandFromFormData($data);

        /** @var CustomerId $customerId */
        $customerId = $this->bus->handle($command);

        return $customerId->getValue();
    }

    /**
     * {@inheritdoc}
     */
    public function update($customerId, array $data)
    {
        $command = $this->buildCustomerEditCommand($customerId, $data);

        $this->bus->handle($command);
    }

    /**
     * @param array $data
     *
     * @return AddCustomerCommand
     */
    private function buildCustomerAddCommandFromFormData(array $data)
    {
        // Default data from the form
        $password = $data['password'];
        $defaultGroupId = (int) $data['default_group_id'];
        $groupIds = array_map(function ($groupId) {
            return (int) $groupId;
        }, $data['group_ids']);
        $isEnabled = (bool) $data['is_enabled'];

        /*
         * If a guest is created, we will alter the data a bit.
         * The data should already come correct from the form, but we can't trust the JS.
         *
         * Difference between a customer and a guest:
         * - Password is randomly generated.
         * - He is always enabled.
         * - His default group is the default GUEST group and he should belong to this group.
         */
        if ($data['is_guest']) {
            $password = (new PasswordGenerator(new OpenSSL()))->generatePassword(16, 'RANDOM');
            $guestGroupId = $this->defaultGroupsProvider->getGroups()->getGuestsGroup()->getId();
            $defaultGroupId = $guestGroupId;
            $groupIds = [$guestGroupId];
            $isEnabled = true;
        }

        $command = new AddCustomerCommand(
            $data['first_name'],
            $data['last_name'],
            $data['email'],
            $password,
            $defaultGroupId,
            $groupIds,
            $this->contextShopId,
            (int) $data['gender_id'],
            $isEnabled,
            (bool) $data['is_partner_offers_subscribed'],
            $data['birthday'] ?: Birthday::EMPTY_BIRTHDAY,
            (bool) $data['is_guest']
        );

        // Optional data processed only if B2B mode is enabled
        if ($this->isB2bFeatureEnabled) {
            $command
                ->setCompanyName((string) $data['company_name'])
                ->setSiretCode((string) $data['siret_code'])
                ->setApeCode((string) $data['ape_code'])
                ->setWebsite((string) $data['website'])
                ->setAllowedOutstandingAmount((float) $data['allowed_outstanding_amount'])
                ->setMaxPaymentDays((int) $data['max_payment_days'])
                ->setRiskId((int) $data['risk_id'])
            ;
        }

        return $command;
    }

    /**
     * @param int $customerId
     * @param array $data
     *
     * @return EditCustomerCommand
     */
    private function buildCustomerEditCommand($customerId, array $data)
    {
        $groupIds = array_map(function ($groupId) {
            return (int) $groupId;
        }, $data['group_ids']);

        $command = (new EditCustomerCommand($customerId))
            ->setGenderId($data['gender_id'])
            ->setEmail($data['email'])
            ->setFirstName($data['first_name'])
            ->setLastName($data['last_name'])
            ->setIsEnabled($data['is_enabled'])
            ->setNewsletterSubscribed($data['is_newsletter_subscribed'])
            ->setIsPartnerOffersSubscribed($data['is_partner_offers_subscribed'])
            ->setDefaultGroupId((int) $data['default_group_id'])
            ->setGroupIds($groupIds)
            ->setBirthday($data['birthday'] ?: Birthday::EMPTY_BIRTHDAY)
        ;

        if (null !== $data['password']) {
            $command->setPassword($data['password']);
        }

        if ($this->isB2bFeatureEnabled) {
            $command
                ->setCompanyName((string) $data['company_name'])
                ->setSiretCode((string) $data['siret_code'])
                ->setApeCode((string) $data['ape_code'])
                ->setWebsite((string) $data['website'])
                ->setAllowedOutstandingAmount((float) $data['allowed_outstanding_amount'])
                ->setMaxPaymentDays((int) $data['max_payment_days'])
                ->setRiskId((int) $data['risk_id'])
            ;
        }

        return $command;
    }
}