class MemberMeta
{

    const INITIAL_REGISTRATION_EMAIL = 'initialRegistrationEmail';
    const ALLOW_AMAZON_TO_WELCART_LOGIN = 'allowAmazonToWelcartLogin';

    /**
     * Welcart member ID
     *
     * @var int
     */
    private $memberId;

    /**
     * `initialRegistrationEmail` meta value
     *
     * @var string|null
     */
    private $initialRegistrationEmail = null;

    /**
     * `allowAmazonToWelcartLogin` meta value
     *
     * @var bool
     */
    private $allowAmazonToWelcartLogin = false;

    /**
     * Constructs a member meta model object for a given member ID
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @global \usc_e_shop $usces
     * @param int $memberId
     * @return void
     */
    public function __construct($memberId) {
        global $usces;

        $this->memberId = (int)$memberId;
        $initialRegistrationEmail = $usces->get_member_meta_value(self::INITIAL_REGISTRATION_EMAIL, $this->memberId);
        $allowAmazonToWelcartLogin = $usces->get_member_meta_value(self::ALLOW_AMAZON_TO_WELCART_LOGIN, $this->memberId);
        if (!empty($initialRegistrationEmail)) {
            $this->initialRegistrationEmail = $initialRegistrationEmail;
        }
        if (!empty($allowAmazonToWelcartLogin)) {
            $this->allowAmazonToWelcartLogin = (bool)(int)$allowAmazonToWelcartLogin;
        }
    }

    /**
     * Saves member meta data
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @global \usc_e_shop $usces
     * @param string $email
     * @param int    $memberId
     * @return void
     */
    public static function saveMemberMetaData($email, $memberId) {
        global $usces;

        $usces->set_member_meta_value(self::INITIAL_REGISTRATION_EMAIL, $email, $memberId);
        $usces->set_member_meta_value(self::ALLOW_AMAZON_TO_WELCART_LOGIN, true, $memberId);
    }

    /**
     * Saves member meta data
     *
     * @author Kubo Tatsuya <k.tatsuya0419@gmail.com>
     * @global \usc_e_shop $usces
     * @param bool $bool
     * @return void
     */
    public static function addAmazonLoginPermissionToMemberMetaData($bool) {
        global $usces;

        $usces->set_member_meta_value(self::ALLOW_AMAZON_TO_WELCART_LOGIN, $bool);
    }

    /**
     * Updates `allowAmazonToWelcartLogin` meta value
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @param bool $bool
     * @return void
     */
    public function updateAllowAmazonToWelcartLogin($bool) {
        global $usces;

        $this->allowAmazonToWelcartLogin = $bool;
        $usces->set_member_meta_value(self::ALLOW_AMAZON_TO_WELCART_LOGIN, $bool, $this->memberId);
    }

    /**
     * Getter for `memberId`
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @return int
     */
    public function getMemberId() {
        return $this->memberId;
    }

    /**
     * Getter for `initialRegistrationEmail`
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @return string
     */
    public function getInitialRegistrationEmail() {
        return $this->initialRegistrationEmail;
    }

    /**
     * Getter for `allowAmazonToWelcartLogin`
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @return string
     */
    public function getAllowAmazonToWelcartLogin() {
        return $this->allowAmazonToWelcartLogin;
    }
}