<?php
/* vim: set expandtab tabstop=4 shiftwidth=4 encoding=utf-8: */
// +----------------------------------------------------------------------+
// | Eventum - Issue Tracking System                                      |
// +----------------------------------------------------------------------+
// | Copyright (c) 2003, 2004, 2005, 2006, 2007 MySQL AB                  |
// |                                                                      |
// | 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 2 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, write to:                           |
// |                                                                      |
// | Free Software Foundation, Inc.                                       |
// | 59 Temple Place - Suite 330                                          |
// | Boston, MA 02111-1307, USA.                                          |
// +----------------------------------------------------------------------+
// | Authors: João Prado Maia <jpm@mysql.com>                             |
// +----------------------------------------------------------------------+
//
// @(#) $Id: class.scm.php 3246 2007-02-09 09:10:12Z glen $
//

require_once(APP_INC_PATH . "class.error_handler.php");
require_once(APP_INC_PATH . "class.misc.php");
require_once(APP_INC_PATH . "class.issue.php");
require_once(APP_INC_PATH . "class.auth.php");
require_once(APP_INC_PATH . "class.user.php");
require_once(APP_INC_PATH . "class.history.php");
require_once(APP_INC_PATH . "class.date.php");
require_once(APP_INC_PATH . "class.setup.php");

/**
 * Class to handle the business logic related to the source control management
 * integration features of the application.
 *
 * @version 1.0
 * @author João Prado Maia <jpm@mysql.com>
 */

class SCM
{
    /**
     * Method used to remove all checkins associates with a list of issues.
     *
     * @access  public
     * @param   array $ids The list of issues
     * @return  boolean
     */
    function removeByIssues($ids)
    {
        $items = implode(", ", Misc::escapeInteger($ids));
        $stmt = "DELETE FROM
                    " . APP_DEFAULT_DB . "." . APP_TABLE_PREFIX . "issue_checkin
                 WHERE
                    isc_iss_id IN ($items)";
        $res = $GLOBALS["db_api"]->dbh->query($stmt);
        if (PEAR::isError($res)) {
            Error_Handler::logError(array($res->getMessage(), $res->getDebugInfo()), __FILE__, __LINE__);
            return false;
        } else {
            return true;
        }
    }


    /**
     * Method used to remove a specific list of checkins
     *
     * @access  public
     * @return  integer 1 if the update worked, -1 otherwise
     */
    function remove()
    {
        $items = implode(", ", Misc::escapeInteger($_POST["item"]));
        $stmt = "SELECT
                    isc_iss_id
                 FROM
                    " . APP_DEFAULT_DB . "." . APP_TABLE_PREFIX . "issue_checkin
                 WHERE
                    isc_id IN ($items)";
        $issue_id = $GLOBALS["db_api"]->dbh->getOne($stmt);

        $stmt = "DELETE FROM
                    " . APP_DEFAULT_DB . "." . APP_TABLE_PREFIX . "issue_checkin
                 WHERE
                    isc_id IN ($items)";
        $res = $GLOBALS["db_api"]->dbh->query($stmt);
        if (PEAR::isError($res)) {
            Error_Handler::logError(array($res->getMessage(), $res->getDebugInfo()), __FILE__, __LINE__);
            return -1;
        } else {
            // need to mark this issue as updated
            Issue::markAsUpdated($issue_id);
            // need to save a history entry for this
            History::add($issue_id, Auth::getUserID(), History::getTypeID('scm_checkin_removed'), ev_gettext('SCM Checkins removed by %1$s', User::getFullName(Auth::getUserID())));
            return 1;
        }
    }


    /**
     * Method used to parse an user provided URL and substitute a known set of
     * placeholders for the appropriate information.
     *
     * @access  public
     * @param   string $url The user provided URL
     * @return  string The parsed URL
     */
    function parseURL($url, $info)
    {
        $url = str_replace('{MODULE}', $info["isc_module"], $url);
        $url = str_replace('{FILE}', $info["isc_filename"], $url);
        $url = str_replace('{OLD_VERSION}', $info["isc_old_version"], $url);
        $url = str_replace('{NEW_VERSION}', $info["isc_new_version"], $url);
        return $url;
    }


    /**
     * Method used to get the full list of checkins associated with an issue.
     *
     * @access  public
     * @param   integer $issue_id The issue ID
     * @return  array The list of checkins
     */
    function getCheckinList($issue_id)
    {
        $setup = Setup::load();
        $stmt = "SELECT
                    *
                 FROM
                    " . APP_DEFAULT_DB . "." . APP_TABLE_PREFIX . "issue_checkin
                 WHERE
                    isc_iss_id=" . Misc::escapeInteger($issue_id) . "
                 ORDER BY
                    isc_created_date ASC";
        $res = $GLOBALS["db_api"]->dbh->getAll($stmt, DB_FETCHMODE_ASSOC);
        if (PEAR::isError($res)) {
            Error_Handler::logError(array($res->getMessage(), $res->getDebugInfo()), __FILE__, __LINE__);
            return "";
        } else {
            if (empty($res)) {
                return "";
            } else {
                for ($i = 0; $i < count($res); $i++) {
                    $res[$i]["isc_commit_msg"] = Link_Filter::processText(Issue::getProjectID($issue_id), nl2br(htmlspecialchars($res[$i]["isc_commit_msg"])));
                    @$res[$i]["checkout_url"] = SCM::parseURL($setup["checkout_url"], $res[$i]);
                    @$res[$i]["diff_url"] = SCM::parseURL($setup["diff_url"], $res[$i]);
                    $res[$i]["isc_created_date"] = Date_API::getFormattedDate($res[$i]["isc_created_date"]);
                }
                return $res;
            }
        }
    }


    /**
     * Method used to associate a new checkin with an existing issue
     *
     * @access  public
     * @param   integer $issue_id The issue ID
     * @param   integer $i The offset of the file that was changed
     * @return  integer 1 if the update worked, -1 otherwise
     */
    function logCheckin($issue_id, $i)
    {
        $stmt = "INSERT INTO
                    " . APP_DEFAULT_DB . "." . APP_TABLE_PREFIX . "issue_checkin
                 (
                    isc_iss_id,
                    isc_module,
                    isc_filename,
                    isc_old_version,
                    isc_new_version,
                    isc_created_date,
                    isc_username,
                    isc_commit_msg
                 ) VALUES (
                    $issue_id,
                    '" . Misc::escapeString($_GET["module"]) . "',
                    '" . Misc::escapeString($_GET["files"][$i]) . "',
                    '" . Misc::escapeString($_GET["old_versions"][$i]) . "',
                    '" . Misc::escapeString($_GET["new_versions"][$i]) . "',
                    '" . Date_API::getCurrentDateGMT() . "',
                    '" . Misc::escapeString($_GET["username"]) . "',
                    '" . Misc::escapeString($_GET["commit_msg"]) . "'
                 )";
        $res = $GLOBALS["db_api"]->dbh->query($stmt);
        if (PEAR::isError($res)) {
            Error_Handler::logError(array($res->getMessage(), $res->getDebugInfo()), __FILE__, __LINE__);
            return -1;
        } else {
            // need to mark this issue as updated
            Issue::markAsUpdated($issue_id, 'scm checkin');
            // need to save a history entry for this
            History::add($issue_id, APP_SYSTEM_USER_ID, History::getTypeID('scm_checkin_associated'),
                            ev_gettext("SCM Checkins associated by SCM user '") . $_GET["username"] . '\'.');
            return 1;
        }
    }
}

// benchmarking the included file (aka setup time)
if (APP_BENCHMARK) {
    $GLOBALS['bench']->setMarker('Included SCM Class');
}
