<?php

namespace App\Controllers\Api;

use App\Services\{Auth, Router, GenerateRandomStr, DB, Json, Word};
use \App\Controllers\ExceptionRegister;
use \App\Core\Page;

use donatj\UserAgent\UserAgentParser;


class Register
{


    private static function checkforb($nickname, $nicknames) {
        $replacements = [
            '1' => 'i', '!' => 'i', '|' => 'i', 'l' => 'i', 'í' => 'i', 'ì' => 'i', 'î' => 'i', 'ï' => 'i', 'İ' => 'i', '¡' => 'i',
            '0' => 'o', '@' => 'a', '$' => 's', '5' => 's', '§' => 's', '2' => 'z', '3' => 'e', '7' => 't', '4' => 'a', '8' => 'b',
            '6' => 'b', '9' => 'g', 'ß' => 'ss', 'µ' => 'u', 'æ' => 'ae', 'œ' => 'oe', 'z' => '2', 'x' => '%', 'w' => 'vv', 'v' => 'u',
            'ñ' => 'n', 'á' => 'a', 'à' => 'a', 'â' => 'a', 'ä' => 'a', 'ã' => 'a', 'å' => 'a', 'é' => 'e', 'è' => 'e', 'ê' => 'e',
            'ë' => 'e', 'í' => 'i', 'ó' => 'o', 'ò' => 'o', 'ô' => 'o', 'ö' => 'o', 'õ' => 'o', 'ú' => 'u', 'ù' => 'u', 'û' => 'u',
            'ü' => 'u', 'ç' => 'c', 'ć' => 'c', 'č' => 'c', 'đ' => 'd', 'š' => 's', 'ž' => 'z', 'б' => 'b', 'в' => 'v', 'г' => 'g',
            'д' => 'd', 'е' => 'e', 'ё' => 'e', 'ж' => 'zh', 'з' => 'z', 'и' => 'i', 'й' => 'i', 'к' => 'k', 'л' => 'l', 'м' => 'm',
            'н' => 'n', 'о' => 'o', 'п' => 'p', 'р' => 'r', 'с' => 's', 'т' => 't', 'у' => 'u', 'ф' => 'f', 'х' => 'kh', 'ц' => 'ts',
            'ч' => 'ch', 'ш' => 'sh', 'щ' => 'shch', 'ы' => 'y', 'э' => 'e', 'ю' => 'yu', 'я' => 'ya', 'ѣ' => 'e', 'і' => 'i', 'ѳ' => 'f',
            'ѵ' => 'i', 'қ' => 'k', 'ғ' => 'g', 'ң' => 'n', 'ү' => 'u', 'ұ' => 'u', 'ө' => 'o', 'ә' => 'a', 'җ' => 'zh', 'һ' => 'h',
            'ү' => 'u', 'ұ' => 'u', 'ҙ' => 'z', 'ӣ' => 'i', 'ӯ' => 'u', 'ҷ' => 'ch', 'ҳ' => 'h', 'ѯ' => 'ks', 'ѱ' => 'ps', 'ѝ' => 'i',
            'ѫ' => 'u', 'ѭ' => 'yu', 'ў' => 'u', 'џ' => 'dz', 'є' => 'e', 'і' => 'i', 'ї' => 'i', 'ґ' => 'g', 'є' => 'e', 'і' => 'i', 
            'ї' => 'i', 'ґ' => 'g', 'ä' => 'a', 'ö' => 'o', 'ü' => 'u', 'ß' => 'ss', 'ā' => 'a', 'ē' => 'e', 'ī' => 'i', 'ō' => 'o', 
            'ū' => 'u', 'ç' => 'c', 'ğ' => 'g', 'ş' => 's', 'ÿ' => 'y', 'œ' => 'oe', 'æ' => 'ae', 'å' => 'a', 'ø' => 'o', 'ē' => 'e',
            'ş' => 's', 'ū' => 'u', 'ž' => 'z', 'ž' => 'z', 'ł' => 'l', 'đ' => 'd', 'č' => 'c', 'ć' => 'c', 'ś' => 's', 'ź' => 'z', 
            'ń' => 'n', 'á' => 'a', 'é' => 'e', 'í' => 'i', 'ó' => 'o', 'ú' => 'u', 'ý' => 'y', 'ř' => 'r', 'ě' => 'e', 'ů' => 'u', 
            'ű' => 'u', 'ő' => 'o', 'ě' => 'e', 'ň' => 'n', 'ď' => 'd', 'ť' => 't', 'ĺ' => 'l', 'ľ' => 'l', 'ŕ' => 'r', 'ă' => 'a', 
            'ș' => 's', 'ț' => 't', 'ā' => 'a', 'ē' => 'e', 'ī' => 'i', 'ō' => 'o', 'ū' => 'u', 'ė' => 'e', 'į' => 'i', 'ų' => 'u',
            'ţ' => 't', 'ș' => 's', 'ä' => 'a', 'ö' => 'o', 'ü' => 'u', 'ß' => 'ss', 'ā' => 'a', 'ē' => 'e', 'ī' => 'i', 'ō' => 'o',
            'ū' => 'u', 'ç' => 'c', 'ğ' => 'g', 'ş' => 's', 'ÿ' => 'y', 'œ' => 'oe', 'æ' => 'ae', 'å' => 'a', 'ø' => 'o', 'ē' => 'e',
            'ş' => 's', 'ū' => 'u', 'ž' => 'z', 'ž' => 'z', 'ł' => 'l', 'đ' => 'd', 'č' => 'c', 'ć' => 'c', 'ś' => 's', 'ź' => 'z',
            'ń' => 'n', 'á' => 'a', 'é' => 'e', 'í' => 'i', 'ó' => 'o', 'ú' => 'u', 'ý' => 'y', 'ř' => 'r', 'ě' => 'e', 'ů' => 'u',
            'ű' => 'u', 'ő' => 'o', 'ě' => 'e', 'ň' => 'n', 'ď' => 'd', 'ť' => 't', 'ĺ' => 'l', 'ľ' => 'l', 'ŕ' => 'r', 'ă' => 'a',
            'ș' => 's', 'ț' => 't', 'ā' => 'a', 'ē' => 'e', 'ī' => 'i', 'ō' => 'o', 'ū' => 'u', 'ė' => 'e', 'į' => 'i', 'ų' => 'u',
            'ţ' => 't', 'ș' => 's'
        ];

        $normalized_nickname = strtr(strtolower($nickname), $replacements);

        foreach ($nicknames as $nick) {
            $normalized_nick = strtr(strtolower($nick), $replacements);
            $lev_distance = levenshtein($normalized_nickname, $normalized_nick);
            if ($lev_distance <= 2) {
                return true;
            }
        }
        return false;
    }

    public function __construct()
    {
        $ip = $_SERVER['REMOTE_ADDR'];
        $lockFile = $_SERVER['DOCUMENT_ROOT'].'/lock/request_lock_' . $ip;
        file_put_contents($lockFile, 'lock');

        $ch = curl_init('http://' . $_SERVER['HTTP_HOST'] . '/' . $_GET['username']);
        curl_setopt($ch, CURLOPT_URL, 'http://' . $_SERVER['HTTP_HOST'] . '/' . $_GET['username']);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); 
        curl_setopt($ch, CURLOPT_NOBODY, true); 
        curl_setopt($ch, CURLOPT_HEADER, true); 
        curl_setopt($ch, CURLOPT_SSL_VERIFYSTATUS, false);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'GET');

        curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36');
        curl_exec($ch);

        $username = $_POST['username'];
        $password = $_POST['password'];
        $email = $_POST['email'];
        $forbusernames = explode(',', NGALLERY['root']['registration']['prohibited_usernames']);
        if (!self::checkforb($_POST['username'], $forbusernames)) {
        
            if (!strcasecmp(DB::query('SELECT username FROM users WHERE (LOWER(username) LIKE :username)', array(':username' => '%' . $username . '%'))[0]['username'], $username) === false) {
            if (Word::strlen(ltrim($username)) >= 2 && Word::strlen(ltrim($username)) <= 20) {


                        if (Word::strlen(ltrim($password)) >= 5 && Word::strlen(ltrim($password)) <= 120) {

                            if (filter_var($email, FILTER_VALIDATE_EMAIL)) {


                                if (!DB::query('SELECT email FROM users WHERE email=:email', array(':email' => $email))) {

                                   
                                    $content = Json::return(
                                        array(
                                            'route' => 'NONE',
                                            'regdate' => time()
                                        )
                                    );

                                    DB::query('INSERT INTO users VALUES (\'0\', :username, :email, :password, :photourl, 5, 0, :online, 0, 0, :content)', array(':username' => ltrim($username), ':password' => password_hash(ltrim($password), PASSWORD_BCRYPT), ':photourl'=>'/static/img/avatar.png', ':email' => $email, ':content' => $content, ':online'=>time()));
                                    $cstrong = True;
                                    $token = GenerateRandomStr::gen_uuid();
                                    $user_id = DB::query('SELECT id FROM users WHERE username=:username', array(':username' => $username))[0]['id'];

                                    if (!empty($_SERVER['HTTP_CLIENT_IP'])) {
                                        $ip = $_SERVER['HTTP_CLIENT_IP'];
                                    } elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
                                        $ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
                                    } else {
                                        $ip = $_SERVER['REMOTE_ADDR'];
                                    }

                                    $parser = new UserAgentParser();

                                    $ua = $parser->parse();
                                    $ua = $parser();

                                    $servicekey = GenerateRandomStr::gen_uuid();
                                    $url = 'http://ip-api.com/json/'.$ip;

                                    $response = file_get_contents($url);
                                
                                    $data = json_decode($response, true);
                                    $loc = $data['country'].', '.$data['city'];
                                    DB::query('INSERT INTO login_tokens VALUES (\'0\', :token, :user_id)', array(
                                        ':token' => $token,
                                        ':user_id' => $user_id,
                                       
                                    ));

                                    setcookie("NGALLERYSESS", $token, time() + 120 * 180 * 240 * 720, '/', NULL, NULL, TRUE);
                                    setcookie("NGALLERYSESS_", '1', time() + 120 * 180 * 240 * 360, '/', NULL, NULL, TRUE);
                                    setcookie("NGALLERYID", $user_id, time() + 10 * 10 * 24 * 72, '/', NULL, NULL, TRUE);
                                    
                                    echo json_encode(
                                        array(
                                            'errorcode' => '0',
                                            'error' => 0
                                        )
                                    );
                                } else {
                                    echo json_encode(
                                        array(
                                            'errorcode' => '2',
                                            'errortitle' => 'Пользователь с такой почтой уже существует!',
                                            'error' => 1
                                        )
                                    );
                                }
                          
                    } else {
                        echo json_encode(
                            array(
                                'errorcode' => '3',
                                'errortitle' => 'Почта некорректного формата!',
                                'error' => 1
                            )
                        );
                    }
                } else {
                    echo json_encode(
                        array(
                            'errorcode' => '4',
                            'errortitle' => 'Пароль меньше 5 символов!',
                            'error' => 1
                        )
                    );
                }
            } else {
                echo json_encode(
                    array(
                        'errorcode' => '5',
                        'errortitle' => 'Никнейм некорректный!',
                        'error' => 1
                    )
                );
            }
        } else {
            echo json_encode(
                array(
                    'errorcode' => '6',
                    'errortitle' => 'Никнейм уже существует!',
                    'error' => 1
                )
            );
        }
    } else {
        echo json_encode(
            array(
                'errorcode' => '7',
                'errortitle' => 'Никнейм '.$_POST['username'].' запрещён на сервере.',
                'error' => 1
            )
        );
    }
        unlink($lockFile);
    }
}