<?php
/* Copyright (C) 2010-2012    Regis Houssin        <regis.houssin@capnetworks.com>
 * Copyright (C) 2010        Laurent Destailleur    <eldy@users.sourceforge.net>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 * or see http://www.gnu.org/
 */

/**
 *    \file       htdocs/core/modules/ticket/mod_ticket_simple.php
 *    \ingroup    ticket
 *    \brief      File with class to manage the numbering module Simple for ticket references
 */

require_once DOL_DOCUMENT_ROOT.'/core/modules/ticket/modules_ticket.php';

/**
 *     Class to manage the numbering module Simple for ticket references
 */
class mod_ticket_simple extends ModeleNumRefTicket
{
    public $version = 'dolibarr'; // 'development', 'experimental', 'dolibarr'
    public $prefix = 'TS';
    public $error = '';
    public $nom = "Simple";
    public $name = "Simple";

    /**
     *  Return description of numbering module
     *
     *  @return string      Text with description
     */
    public function info()
    {
        global $langs;
        return $langs->trans("SimpleNumRefModelDesc", $this->prefix);
    }

    /**
     *  Return an example of numbering module values
     *
     *     @return string      Example
     */
    public function getExample()
    {
        return $this->prefix . "0501-0001";
    }

    /**
  * Test si les numeros deja en vigueur dans la base ne provoquent pas de
     *   de conflits qui empechera cette numerotation de fonctionner.
     *
     *   @return boolean     false si conflit, true si ok
     */
    public function canBeActivated()
    {
        global $conf, $langs, $db;

        $coyymm = '';
        $max = '';

        $posindice = 8;
        $sql = "SELECT MAX(CAST(SUBSTRING(ref FROM " . $posindice . ") AS SIGNED)) as max";
        $sql .= " FROM " . MAIN_DB_PREFIX . "ticket";
        $search = $this->prefix . "____-%";
        $sql .= " WHERE ref LIKE '" . $search ."'";
        $sql .= " AND entity = " . $conf->entity;
        $resql = $db->query($sql);
        if ($resql) {
            $row = $db->fetch_row($resql);
            if ($row) {
                $coyymm = substr($row[0], 0, 6);
                $max = $row[0];
            }
        }
        if (!$coyymm || preg_match('/' . $this->prefix . '[0-9][0-9][0-9][0-9]/i', $coyymm)) {
            return true;
        } else {
            $langs->load("errors");
            $this->error = $langs->trans('ErrorNumRefModel', $max);
            return false;
        }
    }

    /**
     *  Return next value
     *
     *  @param  Societe $objsoc    Object third party
     *  @param  Project $ticket Object ticket
     *  @return string                Value if OK, 0 if KO
     */
    public function getNextValue($objsoc, $ticket)
    {
        global $db, $conf;

        // D'abord on recupere la valeur max
        $posindice = 8;
        $sql = "SELECT MAX(CAST(SUBSTRING(ref FROM " . $posindice . ") AS SIGNED)) as max";
        $sql .= " FROM " . MAIN_DB_PREFIX . "ticket";
        $search = $this->prefix . "____-%";
        $sql .= " WHERE ref LIKE '" . $search ."'";
        $sql .= " AND entity = " . $conf->entity;

        $resql = $db->query($sql);
        if ($resql) {
            $obj = $db->fetch_object($resql);
            if ($obj) {
                $max = intval($obj->max);
            } else {
                $max = 0;
            }
        } else {
            dol_syslog("mod_ticket_simple::getNextValue", LOG_DEBUG);
            return -1;
        }

        $date = empty($ticket->datec) ? dol_now() : $ticket->datec;

        //$yymm = strftime("%y%m",time());
        $yymm = strftime("%y%m", $date);

        if ($max >= (pow(10, 4) - 1)) {
            $num = $max + 1;
        } // If counter > 9999, we do not format on 4 chars, we take number as it is
        else {
            $num = sprintf("%04s", $max + 1);
        }

        dol_syslog("mod_ticket_simple::getNextValue return " . $this->prefix . $yymm . "-" . $num);
        return $this->prefix . $yymm . "-" . $num;
    }

}
