<?php

use Core\Config;
use Core\Db;

class UserRegister
{
    private string $error = '';
    private string $login = '';
    private string $email = '';
    private string $password = '';
    private int $class = 0;
    private array $classBonuses = [
        1 => [
            's1=62|s2=3|s3=3|s4=30|rinv=40|m9=5|m6=10|s7=0|a1=0|a2=9|a3=0|a4=0|a5=0|mg1=0|mg2=0|mg3=0|mg4=0|mg5=0|mg6=0|mg7=0|s5=0|s6=0|a6=0|s8=0|s9=0|s10=0|s11=0|s12=0|s13=0|s14=0|s15=0',
            'items' => [6433],
            'effects' => [1, 20, 25, 37, 38, 283, 296, 412, 472],
        ],
        2 => [
            's1=21|s2=31|s3=16|s4=30|rinv=40|m9=5|m6=10|s7=0|a1=9|a2=0|a3=0|a4=0|a5=0|mg1=0|mg2=0|mg3=0|mg4=0|mg5=0|mg6=0|mg7=0|s5=0|s6=0',
            'items' => [6431],
            'effects' => [8, 20, 25, 37, 38, 283, 296, 412, 472],
        ],
        3 => [
            's1=42|s2=3|s3=3|s4=50|rinv=40|m9=5|m6=10|s7=0|a1=0|a2=0|a3=9|a4=0|a5=0|mg1=0|mg2=0|mg3=0|mg4=0|mg5=0|mg6=0|mg7=0|s5=0|s6=0|a6=0|s8=0|s9=0|s10=0|s11=0|s12=0|s13=0|s14=0|s15=0',
            'items' => [6432],
            'effects' => [1, 20, 25, 37, 38, 283, 296, 412, 472],
        ],
        4 => [
            's1=24|s2=15|s3=29|s4=30|rinv=40|m9=5|m6=10|s7=0|a1=0|a2=0|a3=0|a4=9|a5=0|mg1=0|mg2=0|mg3=0|mg4=0|mg5=0|mg6=0|mg7=0|s5=0|s6=0|a6=0|s8=0|s9=0|s10=0|s11=0|s12=0|s13=0|s14=0|s15=0',
            'items' => [6430],
            'effects' => [7, 20, 25, 37, 38, 283, 296, 412, 472],
        ],
        5 => [
            's1=14|s2=3|s3=3|s4=25|rinv=40|m9=5|m6=10|s7=0|a1=0|a2=0|a3=0|a4=0|a5=3|mg1=0|mg2=6|mg3=0|mg4=0|mg5=0|mg6=0|mg7=0|s5=13|s6=40|a6=0|s8=0|s9=0|s10=0|s11=0|s12=0|s13=0|s14=0|s15=0',
            'items' => [6435],
            'effects' => [9, 32, 53, 439, 25, 37, 38, 283, 296, 412, 472],
        ],
        6 => [
            's1=14|s2=3|s3=3|s4=25|rinv=40|m9=5|m6=10|s7=0|a1=0|a2=0|a3=0|a4=0|a5=3|mg1=6|mg2=0|mg3=0|mg4=0|mg5=0|mg6=0|mg7=0|s5=13|s6=40|a6=0|s8=0|s9=0|s10=0|s11=0|s12=0|s13=0|s14=0|s15=0',
            'items' => [6447],
            'effects' => [9, 32, 51, 439, 25, 37, 38, 283, 296, 412, 472],
        ],
        7 => [
            's1=14|s2=3|s3=3|s4=25|rinv=40|m9=5|m6=10|s7=0|a1=0|a2=0|a3=0|a4=0|a5=3|mg1=0|mg2=0|mg3=0|mg4=6|mg5=0|mg6=0|mg7=0|s5=13|s6=40|a6=0|s8=0|s9=0|s10=0|s11=0|s12=0|s13=0|s14=0|s15=0',
            'items' => [6436],
            'effects' => [9, 32, 54, 439, 25, 37, 38, 283, 296, 412, 472],
        ],
        8 => [
            's1=14|s2=3|s3=3|s4=25|rinv=40|m9=5|m6=10|s7=0|a1=0|a2=0|a3=0|a4=0|a5=3|mg1=0|mg2=0|mg3=6|mg4=0|mg5=0|mg6=0|mg7=0|s5=13|s6=40|a6=0|s8=0|s9=0|s10=0|s11=0|s12=0|s13=0|s14=0|s15=0',
            'items' => [6448],
            'effects' => [9, 32, 52, 439, 25, 37, 38, 283, 296, 412, 472],
        ],
        9 => [
            's1=15|s2=23|s3=30|s4=30|rinv=40|m9=5|m6=10|s7=0|a1=9|a2=0|a3=0|a4=0|a5=0|mg1=0|mg2=0|mg3=0|mg4=0|mg5=0|mg6=0|mg7=0|s5=0|s6=0',
            'items' => [6530],
            'effects' => [8, 20, 25, 37, 38, 283, 296, 412, 472],
        ],
    ];
    private array $restrictedLogins = [
        'ангел', 'angel', 'администрация', 'administration', 'Комментатор',
        'Мироздатель', 'Мусорщик', 'Падальщик', 'Повелитель',
        'Архивариус', 'Пересмешник', 'Волынщик', 'Лорд Разрушитель',
        'Милосердие', 'Справедливость', 'Искушение', 'Вознесение',
    ];


    public function hasMixedLatCur(string $txt): bool
    {
        $en = preg_match("/^(([0-9A-z -])+)$/i", $txt);
        $ru = preg_match("/^(([0-9А-я _-])+)$/i", $txt);
        return ($ru && $en) || (!$ru && !$en);
    }

    public function hasGoodLogin(string $login): bool
    {
        $isRestricted = in_array($login, $this->restrictedLogins);
        $isRegistered = Db::getValue('select count(*) from users where login = ?', [$login]);
        //Бывшие в употреблении логины. Дичь, но ладно.
        $wasRegistered = Db::getValue('select count(*) from lastnames where login = ?', [$login]);
        $login = str_replace('  ', ' ', $login);
        if (strlen($login) > 20) {
            $this->error = 'Логин должен содержать не более 20 символов.';
        }
        if (strlen($login) < 4) {
            $this->error = 'Логин должен содержать не менее 4 символов.';
        }
        if ($this->hasMixedLatCur($login)) {
            $this->error = 'В логине разрешено использовать только буквы одного алфавита русского или английского. Нельзя смешивать.';
        }
        if (substr_count($login, ' ') + substr_count($login, '-') + substr_count($login, '_') > 2) {
            $this->error = 'Не более двух разделителей одновременно (пробел, тире, нижнее подчеркивание).';
        }
        if (!empty($this->error)) {
            $this->error .= '<br>Пример правильного никнейма: Петя Убиватор, Коля, xalop.<br>Пример неправильного никнейма: )))), kolя)=-/.';
        }
        if ($isRegistered || $wasRegistered || $isRestricted) {
            $this->error = 'Логин ' . $login . ' уже занят, выберите другой.';
        }

        return !$this->error;
    }

    public function hasGoodEmail(string $email): bool
    {
        $isRegistered = Db::getValue('select count(*) from users where mail = ?', [$email]);
        $isBlocked = Db::getValue('select count(*) from ban_email where email = ?', [$email]);
        $allowedDomains = Db::getColumn('select email from trust_email');
        if (!filter_var($email, FILTER_VALIDATE_EMAIL) || $isRegistered) {
            $this->error = 'Неправильный email.';
        }
        if ($isBlocked) {
            $this->error = 'Адрес заблокирован.';
        }
        if (!in_array(explode('@', $email)[1], $allowedDomains)) {
            $this->error = 'Данный почтовый сервис использовать нельзя.';
        }
        return !$this->error;
    }

    public function hasGoodEmailCode(string $email, int $code): bool
    {
        $check = Db::getValue('select code from secure_code where email = ? order by time desc limit 1', [$email]);
        if ($code !== $check) {
            $this->error = 'Неверный проверочный код.';
        } else {
            Db::sql('delete from secure_code where email = ?', [$email]);
        }
        return !$this->error;
    }

    public function hasGoodPassword(string $password1, string $password2): bool
    {
        if ($password1 !== $password2) {
            $this->error = 'Пароли не совпадают';
        }
        if (strlen($password1) < 8) {
            $this->error = 'Пароль должен быть больше 8 символов';
        }
        return !$this->error;
    }

    public function new(string $login, string $password, string $email, $ref, $birthday, int $sex, int $class): string
    {
        if (!$this->hasGoodLogin($login)) { //fixme: грязный хак, но лучше не придумывается с этой пошаговостью.
            return 0;
        }
        $this->class = $class;
        $ip = UserIp::get();
        $sex -= 10; //На входе 10\11, а передать надо 0\1.
        Db::sql(
            'insert into users
            (`real`,login,host_reg,pass,ip,ipreg,room,timereg,mail,bithday,sex,fnq,molch2,level,clan_zv,money,online)
            values (1,?,?,?,?,?,9,unix_timestamp(),?,?,?,0,unix_timestamp() + 86400,8,0,200,unix_timestamp())',
            [
                $this->login,
                $ref ?? '',
                $this->password,
                $ip,
                $ip,
                $this->email,
                date('d.m.Y', strtotime($birthday)),
                $sex,
            ]
        );
        $uid = Db::lastInsertId();
        $this->login = $login;
        $this->setCookies();
        $this->setStatsItemsEffects();
        User::setOnline($uid);
        Db::sql('insert into online (uid, timeStart) values (?,unix_timestamp())', [$uid]);
        return $uid;
    }

    private function setCookies()
    {
        setcookie('login', 1, 1, '/', Config::get('host'), true);
        setcookie('registrationModal', 1, 1, '/', Config::get('host'), true);
        setcookie('login', $this->login, strtotime('+7 days'), '/', Config::get('host'), true);
        setcookie('registrationModal', 'true', strtotime('+7 days'), '/', Config::get('host'), true);
    }

    private function setStatsItemsEffects()
    {
        $u = User::start();
        $uid = (int)Db::lastInsertId();
        if ($_SESSION['ref'] === 1) {
            $this->classBonuses[$this->class]['items'][] = 4811;
        }

        Db::sql(
            'insert into stats (id,stats,ability,skills,exp) values (?,?,-75,-9,100000)',
            [
                $uid,
                $this->classBonuses[$this->class][0],
            ]
        );

        foreach ($this->classBonuses[$this->class]['items'] as $item) {
            $itemId = $u->addItem($item, $uid);
            Db::sql(
                'update items_users
            set `1price` = (select price_1 from items_shop where items_shop.item_id = ? and sid = 1)
            where id = ?',
                [$item, $itemId]
            );
        }

        $this->addEffects($uid, $this->classBonuses[$this->class]['effects']);
    }


    private function addEffects(int $uid, int ...$eids)
    {
        $in = implode(',', $eids);
        $q =
            "insert into eff_users (
            overType,
            id_eff,
            uid,
            name,
            timeUse,
            data
        )
        select
            oneType,
            id2,
            $uid,
            mname,
            unix_timestamp(),
            mdata
        from
            eff_main
        where
            id2 in ($in)";
        Db::sql($q);
    }

    /**
     * @return string
     */
    public function getError(): string
    {
        return $this->error;
    }
}