<?php
/*
 * Copyright (c) 2011 - OpenSLX GmbH, RZ Uni Freiburg
* This program is free software distributed under the GPL version 2.
* See http://gpl.openslx.org/
*
* If you have any feedback please consult http://feedback.openslx.org/ and
* send your suggestions, praise, or complaints to feedback@openslx.org
*
* General information about OpenSLX can be found at http://openslx.org/
*/

class Application_Model_GroupGroupsMapper {

  protected $_dbTable;

  public function findBy($where, $array = false, $order = false) {
    foreach($where as $k => $v) {
      if($v != null)
        { $where2[] = "$k = '$v'"; }
      else
        { $where2[] = "$k IS NULL"; }
    }
    $where = implode(" AND " , $where2);

    try {
      $db = Zend_Db_Table::getDefaultAdapter();
      $select = $this->getDbTable()->select()
                ->from($this->_dbTable)
                ->where($where);

      if(is_array($order)) {
        foreach ($order as $k => $v)
        $a[] = "$k $v";
        $select->order($a);
      }

      $stmt = $select->query();
      $result = $stmt->fetchAll();

      if(!$array) {
        $entries = array();
        foreach ($result as $row) {
          $entry = new Application_Model_GroupGroups($row);
          $entries[] = $entry;
        }
        return $entries;
      } else {
        return $result;
      }

    } catch (Zend_Exception $e) {
      echo "Error message 2: " . $e->getMessage() . "\n";
    }
  }

  public function setDbTable($dbTable) {
    if (is_string($dbTable)) {
      $dbTable = new $dbTable();
    }

    if (!$dbTable instanceof Zend_Db_Table_Abstract) {
      throw new Exception('Invalid table data gateway provided');
    }

    $this->_dbTable = $dbTable;

    return $this;
  }

  public function getDbTable() {
    if (null === $this->_dbTable) {
      $this->setDbTable('Application_Model_DbTable_GroupGroups');
    }

    return $this->_dbTable;
  }

  public function save(Application_Model_GroupGroups $groupgroups) {

    $data = array('parentID' => $groupgroups->getParentID() , 'groupID' => $groupgroups->getGroupID() );

#Noch zu prüfen ob Eintrag schon vorhanden
    $this->getDbTable()->insert($data);
  }

  public function delete(Application_Model_GroupGroups $groupgroups) {
    if (null === ($id = $groupgroups->getID()) ) {
      return;
    } else {
      $this->getDbTable()->delete(array('groupgroupsID = ?' => $id));
    }
  }

  public function find($id, Application_Model_GroupGroups $groupgroups) {
    $result = $this->getDbTable()->find($id);
    if (0 == count($result)) {
      return;
    }

    $row = $result->current();

    $groupgroups->setParentID($row->parentID)->setGroupID($row->groupID);
  }

  public function fetchAll() {
    $resultSet = $this->getDbTable()->fetchAll();
    $entries   = array();
    foreach ($resultSet as $row) {
      $entry = new Application_Model_GroupGroups();

      $entry->setParentID($row->parentID)->setGroupID($row->groupID);

      $entries[] = $entry;
    }
    return $entries;
  }
  private $crawledNodes;
  // Gets All groupIDs of the parent groups begins with the
  public function getParentGroups($groupID, &$data = null, $level = 0) {
    if(isset($this->crawledNodes['parent'][$groupID]) && $this->crawledNodes['parent'][$groupID] == 1)
      { return $data; }
    $this->crawledNodes['parent'][$groupID] = 1;

    $data[$level][] = $groupID;
    $db = Zend_Db_Table::getDefaultAdapter();
    $query = 'SELECT parentID FROM pbs_groupgroups WHERE groupID="'.$groupID.'"';
    $stmt = $db->query($query);
    $result = $stmt->fetchAll();
    foreach($result as $row) {
      // get the function recursive an increase the level
      $data = $this->getParentGroups($row['parentID'], $data, $level + 1);
    }
    return $data;
  }
  // Gets all childs-groups from a given group
  public function getChildGroups($groupID, &$data = null, $level = 0) {
    if(isset($this->crawledNodes['child'][$groupID]) && $this->crawledNodes['child'][$groupID] == 1)
      { return $data; }
    $this->crawledNodes['child'][$groupID] = 1;
    $data[$level][] = $groupID;
    $db = Zend_Db_Table::getDefaultAdapter();
    $query = 'SELECT groupID FROM pbs_groupgroups WHERE parentID="'.$groupID.'"';
    $stmt = $db->query($query);
    $result = $stmt->fetchAll();
    foreach($result as $row) {
      // get the function recursive an increase the level
      $data = $this->getChildGroups($row['groupID'], $data, $level + 1);
    }
    return $data;
  }

  public function compare(Application_Model_GroupGroups $v1, Application_Model_GroupGroups $v2) {
    $vv1 = $v1->toArray();
    $vv2 = $v2->toArray();
    return array_diff($vv1, $vv2);
  }


}