<?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 common setting
 */
class BaseObserver extends CSMonitorObserverPlugin {

  ///// PRIVATE AND PROTECTED VARS /////////////////////////////////////////////
  ///// PUBLIC METHODS /////////////////////////////////////////////////////////

  public function getPluginName() {
    return CS::translate('BaseObserver', 'sawsalive');
  }

  /**
   * 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;
  }

  ///// PROTECTED METHODS //////////////////////////////////////////////////////
  protected function _processObservation() {

    $arrExecs = $this->getInspectProcesses();
    foreach ((array) $arrExecs as $strFunctionName => $strName) {
      if (!method_exists($this, $strFunctionName)) {
        continue;
      }
      $strService = 'Core.' . substr($strFunctionName, 4);

      $mixedReturnValue = $this->$strFunctionName();
      if ($mixedReturnValue !== NULL) {
        $this->saveReturnValue($mixedReturnValue['value'], $strService . 'Value', $mixedReturnValue['unit'], $mixedReturnValue['warn'], $mixedReturnValue['crit']);
      }
    }
  }

  ///// 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 = 1, $intCrit = 2) {
    $observation = CSMonitor::createObservation($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();
  }

  /**
   * Returns an array of Strings of all processes the plugin can monitor
   *
   * @return array all processes possible to be inspect
   */
  private function getInspectProcesses() {
    $arrClassMethods = get_class_methods($this);
    $strSearchWord = 'exec';

    $arrMatches = array_filter((array) $arrClassMethods, function ($var) use ($strSearchWord) {
      return preg_match("/$strSearchWord/i", $var);
    });

    foreach ((array) $arrMatches as $value) {
      $arrTranslatedMatches[$value] = CS::translate($value, 'sawsalive');
    }
    return (array) $arrTranslatedMatches;
  }

  /**
   * Checks if count of database entries in the Log table
   *
   *
   * @return int value of the count
   */
  private function execCSVersion() {
    return array('value' => 0, 'unit' => CS::getVersion(), 'warn' => '', 'crit' => '');
  }

  /**
   * Checks if count of database entries in the Log table
   *
i   *
   * @return int value of the count
   */
  private function execPHPVersion() {
    return array('value' => 0, 'unit' => phpversion(), 'warn' => '', 'crit' => '');
  }

  /**
   * Gets the entered value from the editor
   *
   * values of days until lic will epired
   *
   * @return String Content name
   */
  private function execLicenceExpirationDays() {
    $strDate = CSLicense::$currentLicense->getValue('core:ExpirationDate');
    if (!$strDate)
      return array('value' => 9999, 'unit' => 'days', 'warn' => '', 'crit' => '');
    $strDateTime = (strtotime($strDate) - time());
    return array('value' => round(($strDateTime / 3600 / 24), 0), 'unit' => 'days', 'warn' => 30, 'crit' => 7);
  }

  /**
   * Checks if the "plugin_cache" setting is switched on or off
   *
   * On: 1 | Off: 2
   *
   * @return int value of the setting
   */
  private function execPluginCache() {
    return array('value' => (CSSecurityUtils::getBoolSecuritySetting('plugin_cache') ? 1 : 2), 'unit' => 'Pos', 'warn' => 0, 'crit' => 1);
  }

  /**
   * Checks if the "Rest Log Request" is activate. Havy increase of database space!
   *
   * On: 1 | Off: 2
   *
   * @return int value of the setting
   */
  private function execRestLog() {
    return array('value' => (CS::getOption('LogRequests', 'rest') ? 1 : 2), 'unit' => 'Pos', 'warn' => 0, 'crit' => 1);
  }

  /**
   * Checks if the "Comet Log Request" is activate. Havy increase of database space!
   *
   * On: 1 | Off: 2
   *
   * @return int value of the setting
   */
  private function execCometLog() {
    return array('value' => (CS::getOption('LogRequests', 'comet') ? 1 : 2), 'unit' => 'Pos', 'warn' => 0, 'crit' => 1);
  }

  /**
   * Checks if count of database entries in the Log table
   *
   *
   * @return int value of the count
   */
  private function execLogCount() {
    return array('value' => Database::queryValue("SELECT COUNT(*) FROM " . CS::getTablePrefix() . "Log"), 'unit' => 'Count', 'warn' => 10000, 'crit' => 100000);
  }
}