<?php

ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);

require(dirname(__FILE__).'../../../config/config.inc.php');

//Clean sessions
$dir = _PS_MODULE_DIR_.'quantitydiscountpro/sessions/';
    if (is_dir($dir)) {
    $laFiles = scandir($dir);
    if (!empty($laFiles)) {
        unset($laFiles[0], $laFiles[1]);
        if (!empty($laFiles)) {
            // Remove files
            foreach ($laFiles as $lsFile) {
                if ($lsFile != 'index.php') {
                    $filelastmodified = filemtime($dir.$lsFile);
                    if((time() - $filelastmodified) > 24*3600)
                    {
                        dump('Remove file '.$dir.$lsFile);
                        @unlink($dir.$lsFile);
                    }
                }
            }
        }
    }
}


//Orphanated records
$sql = 'DELETE FROM `'._DB_PREFIX_.'quantity_discount_rule_cart`
    WHERE `id_cart_rule` NOT IN (SELECT `id_cart_rule` from `'._DB_PREFIX_.'cart_rule`);';
Db::getInstance()->execute($sql);

$sql = 'DELETE FROM `'._DB_PREFIX_.'quantity_discount_rule_cart`
    WHERE `id_cart` NOT IN (SELECT `id_cart` from `'._DB_PREFIX_.'cart`);';
Db::getInstance()->execute($sql);

// Orders
$sql = 'SELECT o.`id_cart`, qdrc.`id_cart_rule`, o.`id_order`
FROM `'._DB_PREFIX_.'quantity_discount_rule_cart` qdrc
LEFT JOIN `'._DB_PREFIX_.'order_cart_rule` ocr ON (ocr.id_cart_rule = qdrc.id_cart_rule)
LEFT JOIN `'._DB_PREFIX_.'orders` o ON (o.id_order = ocr.id_order)
WHERE qdrc.`id_cart_rule` IN (SELECT `id_cart_rule` FROM `'._DB_PREFIX_.'order_cart_rule`)
AND date_add < DATE_SUB(NOW(), INTERVAL 7 DAY)
ORDER BY o.`id_order` ASC';

$result = Db::getInstance()->executeS($sql);
//var_dump($sql);
//dump(count($result));
foreach ($result as $rule) {
    dump('Remove rule '.(int)$rule['id_cart_rule'].' from order '.(int)$rule['id_order']);
    $cartRule = new CartRule((int)$rule['id_cart_rule']);
    $cartRule->delete();
}

// Carts
$sql = 'SELECT c.`id_cart`, qdrc.`id_cart_rule`
FROM `'._DB_PREFIX_.'quantity_discount_rule_cart` qdrc
LEFT JOIN `'._DB_PREFIX_.'cart` c ON (qdrc.id_cart = c.id_cart)
LEFT JOIN `'._DB_PREFIX_.'orders` o ON (o.id_cart = c.id_cart)
WHERE TIME_TO_SEC(TIMEDIFF(\''.pSQL(date('Y-m-d H:i:00', time())).'\', c.`date_upd`)) > 86400*30 and o.id_order is null
order by c.date_add desc';

$result = Db::getInstance()->executeS($sql);
//var_dump($sql);
//dump(count($result));
foreach ($result as $rule) {
    dump('Remove rule '.(int)$rule['id_cart_rule'].' from cart '.(int)$rule['id_cart']);
    $cartRule = new CartRule((int)$rule['id_cart_rule']);
    $cartRule->delete();
    $cart = new Cart((int)$rule['id_cart']);
    $cart->delete();
}

return true;