<?php

// (c) Copyright by authors of the Tiki Wiki CMS Groupware Project
//
// All Rights Reserved. See copyright.txt for details and a complete list of authors.
// Licensed under the GNU LESSER GENERAL PUBLIC LICENSE. See license.txt for details.
// $Id$

class DiscountLib extends TikiDb_Bridge
{
    public function replace_discount($params)
    {
        $info = $this->find_discount($params['code'], $params['id']);
        if (empty($info)) {
            if (empty($params['id'])) {
                $query = 'insert into `tiki_discount` (`code`, `value`, `max`, `comment`) values (?, ?, ?, ?)';
                $this->query($query, [$params['code'], $params['value'], $params['max'], $params['comment']]);
            } else {
                $query = 'update `tiki_discount` set `code`=?, `value`=?, `max`=?, `comment`=? where `id`=?';
                $this->query($query, [$params['code'], $params['value'], $params['max'], $params['comment'], $params['id']]);
            }
            return true;
        } else {
            return false;
        }
    }

    public function del_discount($id)
    {
        $query = 'delete from `tiki_discount` where `id`=?';
        $this->query($query, [$id]);
    }

    public function use_discount($code)
    {
        $info = $this->find_discount($code);
        if (empty($info) || $info['max'] == 0) {
            return false;
        } elseif ($info['max'] > 0) {
            $query = 'update `tiki_discount` set `max`=`max`-1 where `code`=?';
            $this->query($query, [$code]);
        }
        return $info['value'];
    }

    public function find_discount($code, $notid = 0)
    {
        $query = 'select * from `tiki_discount` where `code`=? and `id` !=?';
        $info = $this->fetchAll($query, [$code, $notid], 1, 0);
        return $info ? $info[0] : null;
    }

    public function get_discount($id)
    {
        $query = 'select * from `tiki_discount` where `id` =?';
        $info = $this->fetchAll($query, [$id], 1, 0);
        return $info ? $info[0] : null;
    }

    public function list_discounts($offset = 0, $max = -1)
    {
        $query = 'select * from `tiki_discount`';
        $bindvars = [];
        $discounts['data'] = $this->fetchAll($query, $bindvars, $max, $offset);
        $query = 'select count(*) from `tiki_discount`';
        $discounts['cant'] = $this->getOne($query, $bindvars);
        return $discounts;
    }
}
global $discountlib;
$discountlib = new DiscountLib();