<?php
class core{
    public static $settings = '';
/*  ----------------------------------------------------------------------
    08.12.2022
    Наполняем базу городов, регионов и стран
----------------------------------------------------------------------  */
    static function get_geo_api($ip){
        $ch = curl_init('http://ip-api.com/json/' . $ip . '?lang=ru');
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_HEADER, false);
        $res = curl_exec($ch);
        curl_close($ch);
        $res = json_decode($res, true);
        return $res;    
    }
	static function geo(){
        $res=self::get_geo_api($_SERVER['REMOTE_ADDR']);
        $strana_id = \DB::getValue('SELECT `id` FROM `strana` WHERE `txt` = "' . $res['country'] . '"');
        if (!$strana_id && $res['country'])$strana_id=\DB::add("INSERT INTO `strana` (`txt`) VALUES (?)", array($res['country']));
        $region_id = \DB::getValue('SELECT `id` FROM `region` WHERE `txt` = "' . $res['regionName'] . '" AND `strana_id` = ' . $strana_id);
        if ( !$region_id && $res['regionName'] )$region_id = \DB::add("INSERT INTO `region` (`txt`, `strana_id`) VALUES (?, ?)", array($res['regionName'], $strana_id));
        $city_id = \DB::getValue('SELECT `id` FROM `city` WHERE `txt` = "' . $res['city'] . '" AND `strana_id` = ' . $strana_id  . ' AND `region_id`=' . $region_id);
        if (!$city_id && $res['city'] ){
            $city_id = \DB::add("INSERT INTO `city` (`txt`, `strana_id`, `region_id`) VALUES (?, ?, ?)" , array( $res['city'], $strana_id, $region_id) );
            $_SESSION['city']=$city_id;
        }
	}
/*  ----------------------------------------------------------------------
    08.12.2022
    Берем настройки модуля/сайта
----------------------------------------------------------------------  */
	static function getSettings($set, $mod='global'){
        //echo 'SELECT `json` FROM `settings` WHERE `mod` = "' . $mod . '" LIMIT 1';
        $txt = \DB::getValue('SELECT `json` FROM `settings` WHERE `mod` = "' . $mod . '" LIMIT 1');
		$massiv = \json::from_j($txt);
        return $massiv[$set];
	}

/*  ----------------------------------------------------------------------
    02.04.2023
    Все настройки модуля
----------------------------------------------------------------------  */
static function setSettingsMod($mod='global'){
    $json=\DB::getValue("SELECT `json` FROM `settings` WHERE `mod`=?", $mod);
//    echo $json;
    return \json::from_j($json);
}
/*  ----------------------------------------------------------------------
    08.12.2022
    Авторизация по куки
----------------------------------------------------------------------  */
    static function loginCookies ( ) {
        if ( @$_COOKIE['cookies'] && !@$_SESSION['user_id']){
            $res = \json::from_j ( base64_decode ( $_COOKIE['cookies'] ) );
            $users = \DB::getAll('SELECT `dostup`, `act` FROM `users` WHERE `id` = "' . $res['user_id'] . '" AND `pwd`="' . $res['pwd'] . '" LIMIT 1');
            if ( $users[0]['dostup'] ) {
                $_SESSION['user_id'] = $res['user_id'];
                $_SESSION['dostup'] = $users[0]['dostup'];
            }
        }
    }


/*  ----------------------------------------------------------------------
    09.12.2022
    Получаем данные корзины
    Выводим массив, в массиве cart - все содержимое корзины, в summ - итог корзины
----------------------------------------------------------------------  */
    static function getCart ( ) {
        $session_id = ( @$_SESSION['user_id'] ) ? @$_SESSION['user_id'] : session_id();
        $cart = \DB::getAll( "SELECT * FROM `cart` WHERE `user_id`=? AND `order` IS NULL", $session_id );
        $summ = 0;
        //Получаем название товаров и цены
        for ( $i = 0; $i < count( $cart ); $i++ ){
            $t=\DB::getRow( "SELECT `title`, `cena` FROM `tovar` WHERE `id`=? LIMIT 1", $cart[$i]['tovar_id'] );
            //$cart[$i]['title'] = \DB::getValue( "SELECT `title` FROM `tovar` WHERE `id`=? LIMIT 1", $cart[$i]['tovar_id'] );
            $cart[$i]['title'] = $t['title'];
            $cart[$i]['cena'] = $t['cena'];
            $cart[$i]['img'] = \DB::getValue( "SELECT `filename` FROM `tovar_img` WHERE `tovar_id`=? LIMIT 1", $cart[$i]['tovar_id'] );
            //$cart[$i]['cena'] = \DB::getValue( "SELECT `cena` FROM `tovar_price_history` WHERE `tovar_id`=? ORDER BY `t` DESC LIMIT 1", $cart[$i]['tovar_id'] );
            $cart[$i]['st'] = $cart[$i]['kolvo'] * $cart[$i]['cena'];
            $summ = $summ + $cart[$i]['st'];
        }
        $result['cart'] = $cart;
        $result['summ'] = $summ;
        return $result;
    }

/*  ----------------------------------------------------------------------
    20.12.2022
    Получаем данные об основной организации пользователя
----------------------------------------------------------------------  */
static function getUserMainOrg ( $user_id ) {
    
}
/*  ----------------------------------------------------------------------
    09.12.2022
    IP
----------------------------------------------------------------------  */
static function detect_ip ( ) {
    $ip = false;
    if (isset($_SERVER["HTTP_X_FORWARDED_FOR"]) and preg_match("#^[0-9.]+$#", $_SERVER["HTTP_X_FORWARDED_FOR"])) {
        $ip = $_SERVER["HTTP_X_FORWARDED_FOR"];
    }
    else if (isset($_SERVER["HTTP_X_REAL_IP"]) and preg_match("#^[0-9.]+$#", $_SERVER["HTTP_X_REAL_IP"])) {
        $ip = $_SERVER["HTTP_X_REAL_IP"];
    }
    else if (preg_match("#^[0-9.]+$#", $_SERVER["REMOTE_ADDR"])) {
        $ip = $_SERVER["REMOTE_ADDR"];
    }
    return $ip;
}

/*  ----------------------------------------------------------------------
    09.12.2022
    Авторизация
----------------------------------------------------------------------  */
    private static function redirectAfterLogin($dostup){
        if ( $dostup=='a' || $dostup=='m' ) header( 'Location: /admin/' );
        if ( $dostup=='u' ) header( 'Location: /' . self::getSettings('default_mod_auth') . '/' );
    }
    static function login ( ) {
        $user = \DB::getAll( 'SELECT `id`, `dostup` FROM `users` WHERE `email` = ? AND `pwd`=? LIMIT 1', array( $_POST['email'], md5( $_POST['pwd'] ) ) ); 
        if ( $user[0]['dostup'] ) {
            $_SESSION['dostup'] = $user[0]['dostup'];
            $_SESSION['user_id'] = $user[0]['id'];
        }
        if ( $_POST['remember'] == 'on' && $user[0]['dostup'] ) {
            $_SESSION['pwd'] = md5($_POST['pwd']);
            $cookies = base64_encode ( \json::to_j ( $_SESSION ) );
            $tri_mes = time() + 31536000;
            setcookie ( 'cookies', $cookies, $tri_mes,  '/', $_SERVER['SERVER_NAME'] );
        }
        self::redirectAfterLogin( $user[0]['dostup'] );
    }
/*  ----------------------------------------------------------------------
    12.12.2022
    Получаем данные о пользователе
----------------------------------------------------------------------  */
    static function getUserInfo ( $id ) {
        $user = \DB::getAll( 'SELECT * FROM `users` WHERE `id` = ? LIMIT 1', array( $id ) ); 
        return $user;
    }
/*  ----------------------------------------------------------------------
    13.12.2022
    Шифровальщик
----------------------------------------------------------------------  */
    /*static function crypt ( $String, $act='crypt', $pwd ) {
        if ($act=='crypt')$String=base64_encode($String);
        $Salt='BGuxLWQtKweKEMV4';
        $StrLen = strlen($String);
        $Seq = $Password;
        $Gamma = '';
        while (strlen($Gamma)<$StrLen){
            $Seq = pack("H*",sha1($Gamma.$Seq.$Salt));
            $Gamma.=substr($Seq,0,8);
        }
        $result = $String^$Gamma;
        if ($act=='decrypt')$String=base64_decode($String);
        return $result;
    }*/

/*  ----------------------------------------------------------------------
    15.12.2022
    Генератор паролей
----------------------------------------------------------------------  */
    static function genpassword ( $number=10 ) {
        $arr = array('a','b','c','d','e','f', 'g','h','i','j','k','l','m','n','o','p','r','s','t','u','v','x','y','z','1','2','3','4','5','6','7','8','9','0');
        $pass = "";  
        for($i = 0; $i < $number; $i++){
            $index = rand(0, count($arr) - 1);  
            $pass .= $arr[$index];
        }  
        return $pass;
    } 

/*  ----------------------------------------------------------------------
    28.12.2022
    Получаем мета-теги - для модулей не имеющих свои теги (используется в /main)
----------------------------------------------------------------------  */
static function getMeta ( $mod, $id=0) {
    $massiv= \DB::getAll( 'SELECT * FROM `meta` WHERE `id` = ? AND `mod`=? LIMIT 1', array( $id, $mod ) );
    if (count($massiv)==0) \DB::add("INSERT INTO `meta` (`id`, `mod`) VALUES (?, ?)", array( $id, $mod ));
    $res=$massiv[0];
    return $res;
} 

/*  ----------------------------------------------------------------------
    03.01.2023
    Хлебные крошки
----------------------------------------------------------------------  */
static function getBreadcrumb ( $table, $category ) {
    $p = $category;
    $i = 0;
    while ( $p!=0 ){
        $massiv = \DB::getAll( "SELECT `id`, `title`, `category` FROM `" . $table . "` WHERE `id`=? LIMIT 1", $p );
        $res[$i]['id'] = $massiv[0]['id'];
        $res[$i]['title'] = $massiv[0]['title'];
        $i++;
        $p = $massiv[0]['category'];
    }
    return array_reverse ( $res );
} 

/*  ----------------------------------------------------------------------
    02.02.2023
    Архиватор и разорхиватор
----------------------------------------------------------------------  */
static function zip ( $txt ) {
    return base64_encode(gzcompress ( $txt, 9 ) );    
} 
static function unzip ( $txt ) {
    return gzuncompress ( base64_decode ( $txt ) );
} 
/*  ----------------------------------------------------------------------
    27.02.2023
    Проверяем ид или ид сессии пользователя (для Интернет-магазина)
----------------------------------------------------------------------  */
static function checkMe ( ) {
    return ( $_SESSION['user_id'] ) ? $_SESSION['user_id'] : session_id();
} 
/*  ----------------------------------------------------------------------
    07.02.2023
    Добавляем в корзину
----------------------------------------------------------------------  */
static function addToCart ($tovar_id, $kolvo=1 ) {
    $user_id=self::checkMe();


    \DB::set("ALTER TABLE `cart`
        CHANGE `user_id` `user_id` varchar(50) NULL AFTER `tovar_id`;");

//        $session_id = \core::checkMe();
        //Получаем количество, если есть...
        $kolvo = \DB::getValue( "SELECT `kolvo` FROM `cart` WHERE `user_id`=? AND `tovar_id`=?", array( $user_id, $_POST['pages_id'] ) );
        if ($kolvo){
            $kolvo=$kolvo+$_POST['kolvo'];
            \DB::set("UPDATE `cart` SET `kolvo`=? WHERE `user_id`=? AND `tovar_id`=?", array( $kolvo, $user_id, $_POST['pages_id'] ) );
        }else
            $insert_id = \DB::add( "INSERT INTO `cart` (`t`, `tovar_id`, `user_id`, `kolvo`) VALUES(?, ?, ?, ?)", array(time(), $_POST['pages_id'], $user_id, $_POST['kolvo'] ) );
        //Суммируем содержимое корзины и выводим в js
        $summ = 0;
        $cart = \DB::getAll( "SELECT `tovar_id`, `kolvo` FROM `cart` WHERE `user_id`=?", $user_id );
        for ( $i=0; $i<count( $cart ); $i++ ){
            $cena = \DB::getValue( "SELECT `cena` FROM `tovar_price_history` WHERE `tovar_id`=? AND `status`=1", $cart[$i]['tovar_id'] );
            $m = $cena * $cart[$i]['kolvo'];
            $summ = $summ + $m;
        }
        return $summ;
} 


/*  ----------------------------------------------------------------------
    07.03.2023
    Делаем превьюшку
----------------------------------------------------------------------  */
static function imgPreview ( $src, $dst, $w=800, $h=600 ) {
    $tmp = self::genpassword(10);
    exec ("convert -define jpeg:size=640x480 " . $src . " -thumbnail '800x600>' -background white -gravity center -extent 800x600 " . $dst);
} 

/*  ----------------------------------------------------------------------
    17.03.2023
    Получаем получаем последню цену
----------------------------------------------------------------------  */
static function GetLostPrice ( $tovar_id ) {
   return \DB::getValue("SELECT `cena` FROM `tovar_price_history` WHERE `tovar_id`=? AND `status`=1 ORDER BY `t` DESC LIMIT 1", $tovar_id);
} 


 /*  ----------------------------------------------------------------------
    06.07.2023
    Поиск текста по строке
----------------------------------------------------------------------  */
static function findtxt ( $txt, $find ) {

    $r = (stripos($txt, $find)===false)?0:1;
/*
    $pos1 = stripos($txt, $find);
    if ($pos1 === false) return 0;
    else
    return 1;*/
    return $r;
 } 

/*  ----------------------------------------------------------------------
    08.07.2023
    Уникализирует массив, документация:
    https://snipp.ru/php/array-unique-multi
----------------------------------------------------------------------  */
 static function array_unique_key($array, $key) { 
	$tmp = $key_array = array(); 
	$i = 0; 
	foreach($array as $val) { 
		if (!in_array($val[$key], $key_array)) { 
			$key_array[$i] = $val[$key]; 
			$tmp[$i] = $val; 
		} 
		$i++; 
	} 
	return $tmp; 
}


}


?>