<?php
namespace Mince;

use Index\Data\IDbConnection;
use Index\Data\DbType;

final class Whitelist {
    public static function add(IDbConnection $db, object $userInfo, string $userName): string {
        $length = strlen($userName);
        if($length < 3)
            return 'short';
        if($length > 16)
            return 'long';
        if(!preg_match('#^([a-zA-Z0-9_]{3,16})$#', $userName))
            return 'invalid';

        $dupeCheck = $db->prepare('SELECT COUNT(`flashii_id`) > 0 FROM `whitelist_2022` WHERE `minecraft_username` = ?');
        $dupeCheck->addParameter(1, $userName, DbType::STRING);
        $dupeCheck->execute();
        $dupeResult = $dupeCheck->getResult();

        if(!$dupeResult->next())
            return 'dupefail';
        if($dupeResult->getInteger(0))
            return 'conflict';

        if(!empty($userInfo->mc_whitelisted) || !empty($userInfo->mc_username)) {
            $resp = self::remove($db, $userInfo);
            if($resp !== '')
                return $resp;
        }

        $resp = Remote::call('wl:add', $userName);

        if($resp !== 'success')
            return $resp;

        $insert = $db->prepare('INSERT INTO `whitelist_2022` (`flashii_id`, `minecraft_username`) VALUES (?, ?)');
        $insert->addParameter(1, $userInfo->user_id);
        $insert->addParameter(2, $userName, DbType::STRING);
        $insert->execute();

        $userInfo->mc_username = $userName;
        $userInfo->mc_whitelisted = time();

        return '';
    }

    public static function remove(IDbConnection $db, object $userInfo): string {
        if(empty($userInfo->mc_whitelisted) || empty($userInfo->mc_username))
            return 'not-listed';

        $resp = Remote::call('wl:remove', $userInfo->mc_username);

        if($resp !== 'success')
            return $resp;

        $delete = $db->prepare('DELETE FROM `whitelist_2022` WHERE `flashii_id` = ?');
        $delete->addParameter(1, $userInfo->user_id);
        $delete->execute();

        $userInfo->mc_username = null;
        $userInfo->mc_whitelisted = 0;

        return '';
    }
}