<?php

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

include_once CS_ADMIN . 'modules/monitor/plugins/rest/MonitorRestservice.php';
include_once CS_ADMIN . 'modules/rest/api/plugins/CSRestservicePlugin.php';
include_once '../' . CS::getProjectName() . '/modules/csalive/plugins/monitor/FileshareObserver.php';

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

/**
 * Observer plugin which saves the content of a file
 */
class SearchPerformanceObserver extends CSMonitorObserverPlugin {

  ///// PRIVATE AND PROTECTED VARS /////////////////////////////////////////////
  ///// 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('SearchWord', CS::translate('CSALIVE_MONITOR_SEARCH_WORD', 'csalive'), '', '', FALSE, array(
        'PaneTitle' => CS::translate('REST_GUI_EDIT_SETTINGS')
    ));
  }

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

  /**
   * Measures the time needed for a specific process and stores it in the database
   */
  protected function _processObservation() {
    $strUrl = '../admin/rest/opensearch/search?q=' . $this->getSearchWord() . '&f=json&l=de&a=&p=1&c=10' . CSUser::getPIN();

    $intStartTime = $this->microtimeFloat(); //START

    $strResult = Curl::GET($strUrl);

    $arrResult = json_decode($strResult, true);
    $floatMeasuredTime = $this->getDuration($intStartTime); //STOP

    $this->saveSearchedValue($floatMeasuredTime, 's', 'Core.' . $this->getServiceName());

    if ($strResult !== NULL) {
      $this->saveSearchedValue($arrResult['totalResults'], 'items', 'Core.' . $this->getServiceName() . 'Value');
    }
  }

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

  /**
   * Returns a the current time as microtime.
   *
   * Helper function to measure script durations
   *
   * @return float returns current microtime
   */
  private function microtimeFloat() {
    list($usec, $sec) = explode(" ", microtime());
    return ((float) $usec + (float) $sec);
  }

  /**
   * Returns the time difference between current time and given time in seconds.
   *
   * Helper function to measure script durations
   *
   * @return float returns current microtime
   */
  private function getDuration($intStartTime) {
    return number_format((self::microtimeFloat() - $intStartTime), 4);
  }

  /**
   * Receives the name of the service
   *
   * @return String Name of the service
   */
  private function getServiceName() {
    $strServiceName = 'Searchperformance';
    return $strServiceName;
  }

  /**
   * Receives the entered word in the editor
   *
   * @return String Searched Word
   */
  private function getSearchWord() {
    $strSearchWord = $this->_observer->getValue('SearchWord');
    return $strSearchWord;
  }

  /**
   * Saves the searched values in the database
   *
   * @param mixed $mixedSearchedValue
   * @param String $strUnit
   * @param String $strService
   */
  private function saveSearchedValue($mixedSearchedValue, $strUnit, $strService) {
    $observation = CSMonitor::createObservation($this->_observer->getID(), $strService);
    $observation->setMeasuredValue($mixedSearchedValue);
    $observation->setTimestamp(CS::getDate());
    $observation->setUnit($strUnit);
    $state = CSMonitor::MONITOR_GUI_NOTIFICATION_NONE_ID;
    $observation->setState($state);
    $observation->setWarningValue(1);
    $observation->setCriticalValue(2);
    $observation->store();
  }

}