<?php
/**
 * ---------------------------------------------------------------------
 * GLPI - Gestionnaire Libre de Parc Informatique
 * Copyright (C) 2015-2020 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/>.
 * ---------------------------------------------------------------------
 */

if (!defined('GLPI_ROOT')) {
   die("Sorry. You can't access this file directly");
}

/// NetworkPortMigration class : class of unknown objects defined inside the NetworkPort before 0.84
/// @since 0.84
class NetworkPortMigration extends CommonDBChild {

   // From CommonDBChild
   static public $itemtype        = 'itemtype';
   static public $items_id        = 'items_id';
   static public $mustBeAttached  = true;

   static $rightname              = 'networking';


   static function getTypeName($nb = 0) {
      return __('Network port migration');
   }


   static function canCreate() {
      return false;
   }


   private function cleanDatabase() {
      global $DB;

      $networkport = new NetworkPort();

      if ($networkport->getFromDB($this->getID())) {

         if (!in_array($networkport->fields['instantiation_type'],
                       NetworkPort::getNetworkPortInstantiations())) {

            $networkport->delete($networkport->fields);
         }
      }

      if (countElementsInTable($this->getTable()) == 0) {
         $query = "DROP TABLE ".$DB->quoteName($this->getTable());
         $DB->query($query);
      }

   }


   function post_purgeItem() {

      $this->cleanDatabase();
      parent::post_purgeItem();
   }


   function post_deleteItem() {

      $this->cleanDatabase();
      parent::post_deleteItem();
   }

   function defineTabs($options = []) {

      $ong = [];
      $this->addDefaultFormTab($ong);
      return $ong;
   }


   static function getMotives() {

      return [ 'unknown_interface_type'
                              => __('Undefined interface'),
                    'invalid_network'
                              => __('Invalid network (already defined or with invalid addresses)'),
                    'invalid_gateway'
                              => __('Gateway not include inside the network'),
                    'invalid_address'
                              => __('Invalid IP address') ];
   }


   function showForm($ID, $options = []) {
      global $DB;

      if (!self::canView()) {
         return false;
      }

      $this->check($ID, READ);

      $recursiveItems = $this->recursivelyGetItems();
      if (count($recursiveItems) > 0) {
         $lastItem             = $recursiveItems[count($recursiveItems) - 1];
         $lastItem_entities_id = $lastItem->getField('entities_id');
      } else {
         $lastItem_entities_id = $_SESSION['glpiactive_entity'];
      }

      $options['entities_id'] = $lastItem_entities_id;
      $this->showFormHeader($options);

      $options['canedit'] = false;
      $options['candel'] = false;

      $number_errors = 0;
      foreach (self::getMotives() as $key => $name) {
         if ($this->fields[$key] == 1) {
            $number_errors ++;
         }
      }

      $motives = self::getMotives();

      $interface_cell = "td";
      $address_cell   = "td";
      $network_cell   = "td";
      $gateway_cell   = "td";

      $address = new IPAddress();
      $netmask = new IPNetmask();

      $number_real_errors = 0;

      if ((!$address->setAddressFromString($this->fields['ip']))
          || (!$netmask->setNetmaskFromString($this->fields['netmask'],
                                              $address->getVersion()))) {
         unset ($address);
         unset ($netmask);
      } else {
         $network = new IPNetwork();

         $params = ["address" => $address,
                         "netmask" => $netmask];
         if (isset($this->fields["address"])) {
            $params["exclude IDs"] = $this->fields["address"];
         }

         if (isset($this->fields["entities_id"])) {
            $entity = $this->fields["entities_id"];
         } else {
            $entity = -1;
         }
         $networkports_ids = IPNetwork::searchNetworks("equals", $params, $entity, false);

         if (count($networkports_ids) == 0) {
            unset($network);
         } else {
            $network->getFromDB($networkports_ids[0]);
         }
      }

      if ($this->fields['unknown_interface_type'] == 1) {
         $options['canedit'] = true;
         $number_real_errors ++;
         $interface_cell = "th";

         echo "<tr class='tab_bg_1'><th>". $motives['unknown_interface_type'] ."</th>\n".
              "<td>" .__('Transform this network port to');
         echo "</td><td colspan=2>";
         Dropdown::showItemTypes('transform_to', NetworkPort::getNetworkPortInstantiations(),
                                 ['value' => "NetworkPortEthernet"]);

         echo "</td></tr>\n";
      }

      if ($this->fields['invalid_network'] == 1) {
         $number_real_errors ++;
         $network_cell = "th";
         $address_cell = "th";
         echo "<tr class='tab_bg_1'><th>" .$motives['invalid_network'] ."</th>\n<td colspan=3>";
         if (isset($network)) {
            printf(__('Network port information conflicting with %s'), $network->getLink());
         } else {
            if (!isset($address) || !isset($netmask)) {
               echo __('Invalid address or netmask');
            } else {
               echo __('No conflicting network');
            }
            echo "&nbsp;<a href='".Toolbox::getItemTypeFormURL('IPNetwork')."'>" .
                  __('you may have to add a network')."</a>";
         }
         echo "</td></tr>\n";
      }

      if ($this->fields['invalid_gateway'] == 1) {
         $number_real_errors ++;
         $gateway_cell = "th";
         echo "<tr class='tab_bg_1'><th>" . $motives['invalid_gateway'] ."</th>\n<td colspan=3>";
         if (isset($network)) {
            printf(__('Append a correct gateway to the network %s'), $network->getLink());
         } else {
            printf(__('%1$s: %2$s'), __('Unknown network'),
                   "<a href='".Toolbox::getItemTypeFormURL('IPNetwork')."'>".__('Add a network')."
                    </a>");
         }
         echo "</td></tr>\n";
      }

      if ($this->fields['invalid_address'] == 1) {
         $number_real_errors ++;
         $address_cell = "th";
         echo "<tr class='tab_bg_1'><th>" .$motives['invalid_address'] ."</th>\n<td colspan=3>";
         $networkPort = new NetworkPort();
         if ($networkPort->getFromDB($this->getID())) {
            $number_real_errors ++;
            echo "<a href='".$networkPort->getLinkURL()."'>".
                   __('Add a correct IP to the network port') . "</a>";
         } else {
            echo __('Unknown network port');
         }
         echo "</td></tr>\n";
      }

      if ($number_real_errors == 0) {
         echo "<tr class='tab_bg_1'><th colspan='3'>" .
              __('I don\'t understand why this migration error is not deleted.');
         echo "</th><th>";
         Html::showSimpleForm($this->getFormURL(), 'delete', __('You can delete this migration error'),
                           ['id' => $this->getID()]);
         echo "</th></tr>\n";
      } else {
         echo "<tr class='tab_bg_1'><th>" . __('At all events') . "</th>\n";
         echo "<td colspan='3'>";
         Html::showSimpleForm($this->getFormURL(), 'delete', __('You can delete this migration error'),
               ['id' => $this->getID()]);

         echo "</td></tr>\n";
      }

      echo "<tr class='tab_bg_1'><td colspan='4'>&nbsp;</td></tr>\n";

      echo "<tr class='tab_bg_1'><th colspan='4'>" .__('Original network port information') ."</th>".
           "</tr>\n";

      echo "<tr class='tab_bg_1'><td>";
      $this->displayRecursiveItems($recursiveItems, 'Type');
      echo "</td>\n<td>";
      $this->displayRecursiveItems($recursiveItems, "Link");
      echo "</td>\n";

      echo "<td>".__('Comments')."</td>";
      echo "<td class='middle'>" . $this->fields["comment"] . "</td></tr>\n";

      echo "<tr class='tab_bg_1'><td>". __('Network address') ."</td>\n";
      echo "<$network_cell>" . $this->fields['subnet'] . "</$network_cell>\n";

      echo "<td>". IPNetmask::getTypeName(1) ."</td>\n";
      echo "<$network_cell>" . $this->fields['netmask'] . "</$network_cell></tr>\n";

      echo "<tr class='tab_bg_1'><td>". IPAddress::getTypeName(1) ."</td>\n";
      echo "<$address_cell>" . $this->fields['ip'] . "</$address_cell>\n";

      echo "<td>". __('Gateway') ."</td>\n";
      echo "<$gateway_cell>" . $this->fields['gateway'] . "</$gateway_cell></tr>\n";

      echo "<tr class='tab_bg_1'><td>". NetworkInterface::getTypeName(1) ."</td><$interface_cell>\n";
      $iterator = $DB->request([
         'SELECT' => 'name',
         'FROM'   => 'glpi_networkinterfaces',
         'WHERE'  => ['id' => $this->fields['networkinterfaces_id']]
      ]);
      if (count($iterator)) {
         $row = $iterator->next();
         echo $row['name'];
      } else {
         echo __('Unknown interface');
      }
      echo "</$interface_cell>";
      echo "<$interface_cell></$interface_cell>";
      echo "<$interface_cell></$interface_cell></tr>\n";

      $this->showFormButtons($options);
   }


   function getSpecificMassiveActions($checkitem = null) {

      $isadmin = static::canUpdate();
      $actions = parent::getSpecificMassiveActions($checkitem);
      if ($isadmin) {
         $actions[__CLASS__.MassiveAction::CLASS_ACTION_SEPARATOR.'transform_to']
            = __('Transform this network port to');
      }
      return $actions;
   }


   static function showMassiveActionsSubForm(MassiveAction $ma) {
      switch ($ma->getAction()) {
         case 'transform_to' :
            Dropdown::showItemTypes('transform_to', NetworkPort::getNetworkPortInstantiations(),
                                    ['value' => 'NetworkPortEthernet']);
            echo "<br><br>";
            echo Html::submit(_x('button', 'Post'), ['name' => 'massiveaction'])."</span>";
            return true;
      }
      return parent::showMassiveActionsSubForm($ma);
   }


   static function processMassiveActionsForOneItemtype(MassiveAction $ma, CommonDBTM $item,
                                                       array $ids) {
      switch ($ma->getAction()) {
         case 'transform_to':
            $input = $ma->getInput();
            if (isset($input["transform_to"]) && !empty($input["transform_to"])) {
               $networkport = new NetworkPort();
               foreach ($ids as $id) {
                  if ($networkport->canEdit($id)
                      && $item->can($id, DELETE)) {
                     if (empty($networkport->fields['instantiation_type'])) {
                        if ($networkport->switchInstantiationType($input['transform_to']) !== false) {
                           $instantiation             = $networkport->getInstantiation();
                           $input2                    = $item->fields;
                           $input2['networkports_id'] = $input2['id'];
                           unset($input2['id']);
                           if ($instantiation->add($input2)) {
                              $item->delete(['id' => $id]);
                              $ma->itemDone($item->getType(), $id, MassiveAction::ACTION_OK);
                           } else {
                              $ma->itemDone($item->getType(), $id, MassiveAction::ACTION_KO);
                              $ma->addMessage($networkport->getErrorMessage(ERROR_ON_ACTION));
                           }
                        } else {
                           $ma->itemDone($item->getType(), $id, MassiveAction::ACTION_KO);
                           $ma->addMessage($networkport->getErrorMessage(ERROR_ON_ACTION));
                        }
                     } else {
                        $ma->itemDone($item->getType(), $id, MassiveAction::ACTION_KO);
                        $ma->addMessage($networkport->getErrorMessage(ERROR_ON_ACTION));
                     }
                  } else {
                     $ma->itemDone($item->getType(), $id, MassiveAction::ACTION_NORIGHT);
                     $ma->addMessage($networkport->getErrorMessage(ERROR_RIGHT));
                  }
               }
            } else {
               $ma->itemDone($item->getType(), $ids, MassiveAction::ACTION_KO);
            }
            return;
      }
      parent::processMassiveActionsForOneItemtype($ma, $item, $ids);
   }


   function rawSearchOptions() {
      $tab = parent::rawSearchOptions();

      $optionIndex = 10;
      // From 10 to 14
      foreach (self::getMotives() as $motive => $name) {
         $tab[] = [
            'id'                 => $optionIndex,
            'table'              => $this->getTable(),
            'field'              => $motive,
            'name'               => $name,
            'datatype'           => 'bool'
         ];

         $optionIndex ++;
      }

      $tab[] = [
         'id'                 => '20',
         'table'              => $this->getTable(),
         'field'              => 'ip',
         'datatype'           => 'ip',
         'name'               => IPAddress::getTypeName(1)
      ];

      $tab[] = [
         'id'                 => '21',
         'table'              => $this->getTable(),
         'field'              => 'netmask',
         'datatype'           => 'string',
         'name'               => IPNetmask::getTypeName(1)
      ];

      $tab[] = [
         'id'                 => '22',
         'table'              => $this->getTable(),
         'field'              => 'subnet',
         'datatype'           => 'string',
         'name'               => __('Network address')
      ];

      $tab[] = [
         'id'                 => '23',
         'table'              => $this->getTable(),
         'field'              => 'gateway',
         'datatype'           => 'string',
         'name'               => IPAddress::getTypeName(1)
      ];

      $tab[] = [
         'id'                 => '24',
         'table'              => 'glpi_networkinterfaces',
         'field'              => 'name',
         'datatype'           => 'dropdown',
         'name'               => NetworkInterface::getTypeName(1)
      ];

      return $tab;
   }


   /**
    * @param $group           HTMLTableGroup object
    * @param $super           HTMLTableSuperHeader object
    * @param $options   array
    * @param $internet_super
    * @param $father
   **/
   static function getMigrationInstantiationHTMLTableHeaders(HTMLTableGroup $group,
                                                             HTMLTableSuperHeader $super,
                                                             HTMLTableSuperHeader $internet_super = null,
                                                             HTMLTableHeader $father = null,
                                                             array $options = []) {
      // TODO : study to display the correct informations for this undefined NetworkPort
      return null;
   }

}