<?php

///// DEPENDENCIES /////////////////////////////////////////////////////////////

include_once CS_ADMIN . 'modules/monitor/plugins/rest/MonitorRestservice.php';
include_once CS_ADMIN . 'modules/rest/api/plugins/CSRestservicePlugin.php';


///// CLASS DEFINITION /////////////////////////////////////////////////////////

/**
 * Observer plugin which determines the values and needed time for several processes
 */
class CSAliveMamFilesChangedObserver extends CSMonitorObserverPlugin {

  ///// PRIVATE AND PROTECTED VARS /////////////////////////////////////////////

  private $strService;

  ///// PUBLIC METHODS /////////////////////////////////////////////////////////
  public function getPluginName() {
    return CS::translate(get_class($this), 'csalive');
  }

  /**
   * This function is automatically called to start the observation
   *
   * @param int $ObserverID
   * @param object $Service
   * @return method
   */
  public function observe($ObserverID, $Service = NULL) {
    return $this->_processObservation();
  }

  /**
   * Adds additional editor fields to the Contentserv interface
   *
   * @param CSGuiEditor $editor
   * @param CSMonitorObserver $observer
   */
  public function prepareEditor(CSGuiEditor $editor, CSMonitorObserver $observer) {
    $this->_observer = $observer;

    $editor->addField('RangeInDays', CS::translate('CSALIVE_MONITOR_RANGE_IN_DAYS', 'csalive'), '', '1 - 5', FALSE, array(
        'PaneTitle' => CS::translate('REST_GUI_EDIT_SETTINGS')
    ));

    $editor->addField('RangeInHours', CS::translate('CSALIVE_MONITOR_RANGE_IN_HOURS', 'csalive'), '', '6 - 22', FALSE, array(
        'PaneTitle' => CS::translate('REST_GUI_EDIT_SETTINGS')
    ));

    $editor->addField('MaxOldInMinutes', CS::translate('CSALIVE_MONITOR_MAX_OLD_IN_MINUTES', 'csalive'), 'number', 60, FALSE, array(
        'PaneTitle' => CS::translate('REST_GUI_EDIT_SETTINGS')
    ));

    $editor->addField("MAMFile", CS::translate('CSALIVE_MONITOR_MAMFILE', 'csalive'), CS::getRecord('Mamfile'), '', FALSE, array(
        'PaneTitle' => CS::translate('REST_GUI_EDIT_SETTINGS'),
    ));

    $editor->addField("SelectedStatus", CS::translate('CSALIVE_MONITOR_SERVICE_STATUS', 'csalive'), $this->getStatusNames(), 'MAMChange.Status1', FALSE, array(
        'PaneTitle' => CS::translate('REST_GUI_EDIT_SETTINGS'),
        'noEmptyOption' => true
    ));
  }

  ///// PROTECTED METHODS //////////////////////////////////////////////////////

  /**
   * Measures the time needed for a specific process and stores it in the database
   */
  protected function _processObservation() {
    $boolRangeDays = $this->checkRangeValid($this->getRange($this->_observer->getValue('RangeInDays')), 'N');
    $boolRangeHours = $this->checkRangeValid($this->getRange($this->_observer->getValue('RangeInHours')), 'H');

    if ($boolRangeDays && $boolRangeHours) {
      if ($this->checkChangeWithMax($this->_observer->getValue('MAMFile'), $this->_observer->getValue('MaxOldInMinutes'))) {
        $this->saveReturnValue(2, $this->getSelectedStatus(), 'Status');
      }
      else {
        $this->saveReturnValue(1, $this->getSelectedStatus(), 'Status');
      }
    }
  }

  ///// PRIVATE METHODS //////////////////////////////////////////////////////

  /**
   * Is called when a function has a return value.
   * Saves the return value in the database with the Unit "Count"
   *
   * @param mixed $mixedReturnValue
   * @param String $strService
   */
  private function saveReturnValue($mixedReturnValue, $strService, $strUnit = 's', $intWarn = 0, $intCrit = 1) {
    $observation = CSMonitor::createObservation($this->_observer->getID(), $strService);
    $observation->setMeasuredValue($mixedReturnValue);
    $observation->setTimestamp(CS::getDate());
    $observation->setUnit($strUnit);
    $state = CSMonitor::MONITOR_GUI_NOTIFICATION_NONE_ID;
    $observation->setState($state);
    $observation->setWarningValue($intWarn);
    $observation->setCriticalValue($intCrit);
    $observation->store();
  }

  /**
   * return the given value as number or range
   * @param String $strRange
   * @return mixed
   */
  private function getRange($strRange) {
    $arrRange = explode('-', trim($strRange));
    if ($arrRange[1]) {
      return (array) $arrRange;
    }
    else {
      return (int) $arrRange[0];
    }
  }

  /**
   * check the given range or number with the current time
   * @param mixed $mixRange must be integer for specified day or hour, or array for range
   * @param String $strDateTyp 'N' to check days and 'H' to check hours
   * @return boolean
   */
  private function checkRangeValid($mixRange, $strDateTyp) {
    $boolStatus = false;
    if (is_array($mixRange) && date($strDateTyp) >= (int) $mixRange[0] && date($strDateTyp) <= (int) $mixRange[1]) {
      $boolStatus = true;
    }
    elseif (is_int($mixRange) && (int) $mixRange == date($strDateTyp)) {
      $boolStatus = true;
    }
    return (bool) $boolStatus;
  }

  /**
   * check if the given ID file or folder and not older than intMaxOldInMinutes
   * @param int $intMamID File or Folder ID
   * @param int $intMaxOldInMinutes Max old in minutes
   * @param String $strType file type like Mamfile....
   * @return boolean
   */
  private function checkChangeWithMax($intMamID, $intMaxOldInMinutes, $strType = 'Mamfile') {

    $strSubDate = $this->subMinutesFromDate($intMaxOldInMinutes);

    if (CS::getRecord($strType, $intMamID)->IsFolder() == true) {
      if (!empty($this->getDirectionChildrens($intMamID))) {
        foreach ($this->getDirectionChildrens($intMamID) as $intID) {
          $strMamLastChange = $this->getLastChange($intID);
          if ($strMamLastChange >= $strSubDate) {
            return true;
          }
        }
      }
      else {
        //when the Folder empty
        return true;
      }
    }
    else {
      $strMamLastChange = $this->getLastChange($intMamID);
      if ($strMamLastChange >= $strSubDate) {
        return true;
      }
    }
    return false;
  }

  private function subMinutesFromDate($intMin) {
    $strDateNow = date("Y-m-d H:i:s");
    $intTime = strtotime($strDateNow);
    $intSubTime = $intTime - ($intMin * 60);
    $strDate = date("Y-m-d H:i:s", $intSubTime);
    return $strDate;
  }

  private function getLastChange($intID, $stype = 'Mamfile') {
    return CS::getRecord($stype, $intID)->getValue('LastChange');
  }

  private function getDirectionChildrens($intID, $stype = 'Mamfile') {
    return (array) CS::getRecord($stype, $intID)->getChildrenIds($intID, false, false);
  }

  private function getStatusNames() {
    $arrSelectableContent = array();

    for ($intI = 1; $intI <= 10; $intI++) {
      $arrSelectableContent['MAMChange.Status' . $intI] = 'MAMChange.Status' . $intI;
    }
    return $arrSelectableContent;
  }

  private function getSelectedStatus() {
    $strStatus = $this->_observer->getValue('SelectedStatus');
    return $strStatus;
  }

}