<?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 FileContentObserver extends FileshareObserver {

  ///// 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("FilePath", CS::translate('CSALIVE_MONITOR_FILE', 'csalive'), '', '', FALSE, array(
        'PaneTitle' => CS::translate('REST_GUI_EDIT_SETTINGS'),
        'onlyFolder' => true
    ));

    $editor->addField("SelectedContent", CS::translate('CSALIVE_MONITOR_SERVICE_CONTENT', 'csalive'), $this->getContentNames(), 'Content1', FALSE, array(
        'PaneTitle' => CS::translate('REST_GUI_EDIT_SETTINGS'),
        'noEmptyOption' => true
    ));
  }

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

  /**
   * Starts the observation.
   *
   * Checks if the file in the given path exists
   *
   * 1: TRUE | 2: FALSE
   *
   * Saves the text content of the file if possible in the "Unit" column
   */
  protected function _processObservation() {
    $observation = CSMonitor::createObservation($this->_observer->getID(), 'CS.FileContent.' . $this->getSelectedContent());
    $observation->setTimestamp(CS::getDate());
    $state = CSMonitor::MONITOR_GUI_NOTIFICATION_NONE_ID;
    $observation->setState($state);
    $observation->setWarningValue(1);
    $observation->setCriticalValue(2);

    $intMeasuredValue = 2;
    if (!empty($this->getSelectedContent())) {
      if (file_exists($this->getSelectedFile())) {
        if (!empty($this->getSelectedFile())) {
          $intMeasuredValue = 1;
        }
      }
    }

    $observation->setMeasuredValue($intMeasuredValue);

    if (file_get_contents($this->getSelectedFile()) == FALSE) {
      $strUnit = 'Status (File could not been read.)';
    }
    else {
      $strUnit = file_get_contents($this->getSelectedFile());
    }

    $observation->setUnit($strUnit);
    $observation->store();
  }

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

  /**
   * Gets the entered value from the editor
   *
   * @return String Path
   */
  private function getSelectedFile() {
    $strPath = $this->_observer->getValue('FilePath');
    return $strPath;
  }

  /**
   * Gets the entered value from the editor
   *
   * @return String Content name
   */
  private function getSelectedContent() {
    $strContent = $this->_observer->getValue('SelectedContent');
    return $strContent;
  }

  /**
   * Gets the adjustable names for the services to prevent them from
   * overwriting each other accidentally
   *
   * @return array Strings which can be selected in the interface
   */
  private function getContentNames() {
    $arrSelectableContent = array();

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

}