<?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");
}

/**
 * LevelAgreementLevel class
 *
 * Abstract class for common code in SlaLevel & OlaLevel
 *
 * @since  9.2.1
**/
abstract class LevelAgreementLevel extends RuleTicket {

   static $rightname            = 'slm';

   /**
    * Constructor
   **/
   function __construct() {
      // Override in order not to use glpi_rules table.
   }


   /**
    * @since 0.85
   **/
   static function getConditionsArray() {
      // Override ruleticket one
      return [];
   }


   /**
    * @since 0.84
   **/
   function getForbiddenStandardMassiveAction() {

      $forbidden   = parent::getForbiddenStandardMassiveAction();
      $forbidden[] = 'update';
      return $forbidden;
   }


   static function getTypeName($nb = 0) {
      return _n('Escalation level', 'Escalation levels', $nb);
   }


   function rawSearchOptions() {
      $tab = [];

      $tab[] = [
         'id'                 => 'common',
         'name'               => __('Characteristics')
      ];

      $tab[] = [
         'id'                 => '1',
         'table'              => static::getTable(),
         'field'              => 'name',
         'name'               => __('Name'),
         'datatype'           => 'itemlink',
         'massiveaction'      => false,
         'autocomplete'       => true,
      ];

      $tab[] = [
         'id'                 => '3',
         'table'              => static::getTable(),
         'field'              => 'name',
         'name'               => static::getTypeName(),
         'datatype'           => 'itemlink',
         'massiveaction'      => false
      ];

      $tab[] = [
         'id'                 => '4',
         'table'              => static::getTable(),
         'field'              => 'execution_time',
         'name'               => __('Execution'),
         'massiveaction'      => false,
         'searchtype'         => 'equals',
         'datatype'           => 'specific'
      ];

      $tab[] = [
         'id'                 => '5',
         'table'              => static::getTable(),
         'field'              => 'match',
         'name'               => __('Logical operator'),
         'massiveaction'      => false,
         'searchtype'         => 'equals',
         'datatype'           => 'specific'
      ];

      $tab[] = [
         'id'                 => '8',
         'table'              => static::getTable(),
         'field'              => 'is_active',
         'name'               => __('Active'),
         'datatype'           => 'bool'
      ];

      $tab[] = [
         'id'                 => '80',
         'table'              => Entity::getTable(),
         'field'              => 'completename',
         'name'               => Entity::getTypeName(1),
         'massiveaction'      => false,
         'datatype'           => 'dropdown'
      ];

      $tab[] = [
         'id'                 => '86',
         'table'              => static::getTable(),
         'field'              => 'is_recursive',
         'name'               => __('Child entities'),
         'datatype'           => 'bool',
         'massiveaction'      => false
      ];

      return $tab;
   }

   static function getSpecificValueToDisplay($field, $values, array $options = []) {

      switch ($field) {
         case 'execution_time':
            $possible_values = self::getExecutionTimes();
            if (isset($possible_values[$values[$field]])) {
               return $possible_values[$values[$field]];
            }
            break;

      }
      return parent::getSpecificValueToDisplay($field, $values, $options);
   }

   static function getSpecificValueToSelect($field, $name = '', $values = '', array $options = []) {

      if (!is_array($values)) {
         $values = [$field => $values];
      }
      $options['display'] = false;
      switch ($field) {
         case 'execution_time' :
            return self::dropdownExecutionTime($name, $options);

         case 'match':
            $level = new static();
            $options['value'] = $values[$field];
            return $level->dropdownRulesMatch($options);
      }
      return parent::getSpecificValueToSelect($field, $name, $values, $options);
   }


   function getActions() {

      $actions = parent::getActions();

      // Only append actors
      $actions['_users_id_requester']['force_actions']  = ['append'];
      $actions['_groups_id_requester']['force_actions'] = ['append'];
      $actions['_users_id_assign']['force_actions']     = ['append'];
      $actions['_groups_id_assign']['force_actions']    = ['append'];
      $actions['_suppliers_id_assign']['force_actions'] = ['append'];
      $actions['_users_id_observer']['force_actions']   = ['append'];
      $actions['_groups_id_observer']['force_actions']  = ['append'];

      return $actions;
   }

   /**
    * @since 0.84
    *
    * @see RuleTicket::getCriterias()
   **/
   function getCriterias() {

      $actions = parent::getActions();

      unset($actions['olas_id']);
      unset($actions['slas_id']);
      // Could not be used as criteria
      unset($actions['users_id_validate_requester_supervisor']);
      unset($actions['users_id_validate_assign_supervisor']);
      unset($actions['affectobject']);
      unset($actions['groups_id_validate']);
      unset($actions['users_id_validate']);
      unset($actions['validation_percent']);
      $actions['status']['name']    = __('Status');
      $actions['status']['type']    = 'dropdown_status';
      return $actions;
   }


   static function getExecutionTimes($options = []) {
      $p = [
         'value'    => '',
         'max_time' => 4 * DAY_TIMESTAMP,
         'used'     => [],
      ];

      if (is_array($options) && count($options)) {
         foreach ($options as $key => $val) {
            $p[$key] = $val;
         }
      }

      $possible_values = [];
      for ($i=10; $i<60; $i+=10) {
         if (!in_array($i*MINUTE_TIMESTAMP, $p['used'])) {
            $possible_values[$i*MINUTE_TIMESTAMP] = sprintf(_n('+ %d minute', '+ %d minutes', $i), $i);
         }
         if (!in_array(-$i*MINUTE_TIMESTAMP, $p['used'])) {
            if ($p['max_time'] >= $i*MINUTE_TIMESTAMP) {
               $possible_values[-$i*MINUTE_TIMESTAMP] = sprintf(_n('- %d minute', '- %d minutes', $i), $i);
            }
         }
      }

      for ($i=1; $i<24; $i++) {
         if (!in_array($i*HOUR_TIMESTAMP, $p['used'])) {
            $possible_values[$i*HOUR_TIMESTAMP] = sprintf(_n('+ %d hour', '+ %d hours', $i), $i);
         }
         if (!in_array(-$i*HOUR_TIMESTAMP, $p['used'])) {
            if ($p['max_time'] >= $i*HOUR_TIMESTAMP) {
               $possible_values[-$i*HOUR_TIMESTAMP] = sprintf(_n('- %d hour', '- %d hours', $i),
                                                              $i);
            }
         }
      }

      for ($i=1; $i<30; $i++) {
         if (!in_array($i*DAY_TIMESTAMP, $p['used'])) {
            $possible_values[$i*DAY_TIMESTAMP] = sprintf(_n('+ %d day', '+ %d days', $i), $i);
         }
         if (!in_array(-$i*DAY_TIMESTAMP, $p['used'])) {
            if ($p['max_time'] >= $i*DAY_TIMESTAMP) {
               $possible_values[-$i*DAY_TIMESTAMP] = sprintf(_n('- %d day', '- %d days', $i), $i);
            }
         }
      }

      if (!in_array(0, $p['used'])
          && isset($p['type'])) {
         if ($p['type'] == 1) {
            $possible_values[0] = __('Time to own');
         } else {
            $possible_values[0] = __('Time to resolve');
         }
      }
      ksort($possible_values);

      return $possible_values;
   }


   /**
    * Dropdown execution time for SLA
    *
    * @param $name      string   name of the select
    * @param $options   array    of possible options:
    *       - value : default value
    *       - max_time : max time to use
    *       - used : already used values
    *
    * @return integer|string
    *    integer if option display=true (random part of elements id)
    *    string if option display=false (HTML code)
   **/
   static function dropdownExecutionTime($name, $options = []) {
      $p = [
         'value'    => '',
         'max_time' => 4 * DAY_TIMESTAMP,
         'used'     => [],
      ];

      if (is_array($options) && count($options)) {
         foreach ($options as $key => $val) {
            $p[$key] = $val;
         }
      }

      // Display default value;
      if (($key = array_search($p['value'], $p['used'])) !== false) {
         unset($p['used'][$key]);
      }

      $possible_values = self::getExecutionTimes($p);

      return Dropdown::showFromArray($name, $possible_values, $p);
   }

   /**
    * Get already used execution time for a OLA
    *
    * @param $olas_id   integer  id of the OLA
    *
    * @return array of already used execution times
   **/
   static function getAlreadyUsedExecutionTime($las_id) {
      global $DB;

      $result = [];

      $iterator = $DB->request([
         'SELECT'          => 'execution_time',
         'DISTINCT'        => true,
         'FROM'            => static::getTable(),
         'WHERE'           => [
            static::$fkparent => $las_id
         ]
      ]);

      while ($data = $iterator->next()) {
         $result[$data['execution_time']] = $data['execution_time'];
      }
      return $result;
   }


   function getTabNameForItem(CommonGLPI $item, $withtemplate = 0) {

      if (!$withtemplate) {
         $nb = 0;
         switch ($item->getType()) {
            case static::$parentclass:
               if ($_SESSION['glpishow_count_on_tabs']) {
                  $nb =  countElementsInTable(static::getTable(), [static::$fkparent => $item->getID()]);
               }
               return self::createTabEntry(static::getTypeName(Session::getPluralNumber()), $nb);
         }
      }
      return '';
   }


   static function displayTabContentForItem(CommonGLPI $item, $tabnum = 1, $withtemplate = 0) {

      if ($item->getType() == static::$parentclass) {
         $level = new static();
         $level->showForParent($item);
      }
      return true;
   }

}