<?php
/**
 * ---------------------------------------------------------------------
 * GLPI - Gestionnaire Libre de Parc Informatique
 * Copyright (C) 2015-2018 Teclib' and contributors.
 *
 * http://glpi-project.org
 *
 * based on GLPI - Gestionnaire Libre de Parc Informatique
 * Copyright (C) 2003-2014 by the INDEPNET Development Team.
 *
 * ---------------------------------------------------------------------
 *
 * LICENSE
 *
 * This file is part of GLPI.
 *
 * GLPI 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.
 *
 * GLPI 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 GLPI. If not, see <http://www.gnu.org/licenses/>.
 * ---------------------------------------------------------------------
 */

/**
 * Update from 0.83 to 0.83.1
 *
 * @return bool for success (will die for most error)
**/
function update083to0831() {
   global $DB, $migration;

   $updateresult     = true;
   $ADDTODISPLAYPREF = [];

   $migration->displayTitle(sprintf(__('Update to %s'), '0.83.1'));
   $migration->setVersion('0.83.1');

   $backup_tables = false;
   $newtables     = [];

   foreach ($newtables as $new_table) {
      // rename new tables if exists ?
      if ($DB->tableExists($new_table)) {
         $migration->dropTable("backup_$new_table");
         $migration->displayWarning("$new_table table already exists. ".
                                    "A backup have been done to backup_$new_table.");
         $backup_tables = true;
         $query         = $migration->renameTable("$new_table", "backup_$new_table");
      }
   }
   if ($backup_tables) {
      $migration->displayWarning("You can delete backup tables if you have no need of them.", true);
   }

   $migration->addField('glpi_configs', 'allow_search_view', 'integer', ['value' => 2]);
   $migration->addField('glpi_configs', 'allow_search_all', 'bool', ['value' => 1]);
   $migration->addField('glpi_configs', 'allow_search_global', 'bool', ['value' => 1]);

   $migration->addKey('glpi_tickets', 'name');

   $migration->addField("glpi_profiles", "knowbase_admin", "char",
                        ['after'     => "knowbase",
                              'update'    => "1",
                              'condition' => " WHERE `config` = 'w'"]);

   $migration->addField("glpi_configs", "display_count_on_home", "integer", ['value' => 5]);
   $migration->addField("glpi_users", "display_count_on_home", "int(11) NULL DEFAULT NULL");

   // ************ Keep it at the end **************
   $migration->displayMessage('Migration of glpi_displaypreferences');

   foreach ($ADDTODISPLAYPREF as $type => $tab) {
      $query = "SELECT DISTINCT `users_id`
                FROM `glpi_displaypreferences`
                WHERE `itemtype` = '$type'";

      if ($result = $DB->query($query)) {
         if ($DB->numrows($result) > 0) {
            while ($data = $DB->fetch_assoc($result)) {
               $query = "SELECT MAX(`rank`)
                         FROM `glpi_displaypreferences`
                         WHERE `users_id` = '".$data['users_id']."'
                               AND `itemtype` = '$type'";
               $result = $DB->query($query);
               $rank   = $DB->result($result, 0, 0);
               $rank++;

               foreach ($tab as $newval) {
                  $query = "SELECT *
                            FROM `glpi_displaypreferences`
                            WHERE `users_id` = '".$data['users_id']."'
                                  AND `num` = '$newval'
                                  AND `itemtype` = '$type'";
                  if ($result2 = $DB->query($query)) {
                     if ($DB->numrows($result2) == 0) {
                        $query = "INSERT INTO `glpi_displaypreferences`
                                         (`itemtype` ,`num` ,`rank` ,`users_id`)
                                  VALUES ('$type', '$newval', '".$rank++."',
                                          '".$data['users_id']."')";
                        $DB->query($query);
                     }
                  }
               }
            }

         } else { // Add for default user
            $rank = 1;
            foreach ($tab as $newval) {
               $query = "INSERT INTO `glpi_displaypreferences`
                                (`itemtype` ,`num` ,`rank` ,`users_id`)
                         VALUES ('$type', '$newval', '".$rank++."', '0')";
               $DB->query($query);
            }
         }
      }
   }

   // must always be at the end
   $migration->executeMigration();

   return $updateresult;
}
