/**
    * 
    */
   package de.tivsource.page.restore;
   
   import java.io.BufferedReader;
   import java.io.IOException;
   import java.io.InputStream;
   import java.io.InputStreamReader;
  import java.io.UnsupportedEncodingException;
  import java.math.BigDecimal;
  import java.security.NoSuchAlgorithmException;
  import java.text.ParseException;
  import java.text.SimpleDateFormat;
  import java.util.Date;
  import java.util.HashMap;
  import java.util.Iterator;
  import java.util.Map;
  
  import org.apache.logging.log4j.LogManager;
  import org.apache.logging.log4j.Logger;
  
  import de.tivsource.page.dao.event.EventDaoLocal;
  import de.tivsource.page.dao.location.LocationDaoLocal;
  import de.tivsource.page.dao.picture.PictureDaoLocal;
  import de.tivsource.page.entity.enumeration.Language;
  import de.tivsource.page.entity.event.Event;
  import de.tivsource.page.entity.location.Location;
  import de.tivsource.page.entity.namingitem.Description;
  import de.tivsource.page.entity.namingitem.NamingItem;
  
  /**
   * @author Marc Michele
   *
   */
  public class RestoreEvent {
  
      /**
       * Statischer Logger der Klasse.
       */
      private static final Logger LOGGER = LogManager.getLogger(RestoreEvent.class);
  
      private LocationDaoLocal locationDaoLocal;
  
      private EventDaoLocal eventDaoLocal;
  
      private PictureDaoLocal pictureDaoLocal;
  
      public RestoreEvent(LocationDaoLocal locationDaoLocal, EventDaoLocal eventDaoLocal, PictureDaoLocal pictureDaoLocal) {
          super();
          this.locationDaoLocal = locationDaoLocal;
          this.eventDaoLocal = eventDaoLocal;
          this.pictureDaoLocal = pictureDaoLocal;
      }
  
      public void generate(InputStream inputStream) {
          LOGGER.debug("generate(InputStream inputStream) aufgerufen");
          cleanup();
          BufferedReader in = new BufferedReader(new InputStreamReader(inputStream));
          try {
              String line = null;
              while ((line = in.readLine()) != null) {
                  if (!line.startsWith("[Format Definition]")) {
                      Event event = convert(line);
                      eventDaoLocal.merge(event);
                  }
              }
          } catch (IOException e) {
              e.printStackTrace();
          } catch (NoSuchAlgorithmException e) {
              e.printStackTrace();
          }
      }
  
      private Event convert(String line) throws NoSuchAlgorithmException, UnsupportedEncodingException {
  
          // uuid|
          // uuid(de)|name(de)|description(de)|keywords(de)|
          // uuid(en)|name(en)|description(en)|keywords(en)|
          // visible|created|modified|modifiedBy|modifiedAddress|
      	// price|beginning|ending|deadline|location|reservation|picture|piwikGoal|maxReservations|maxPersons|pictureOnPage|
  
          // Zerlege CSV-Zeile in String-Array.
          String[] items = line.split("\\|");
  
          // Erstelle Announcement-Objekt
          Event event = new Event();
  
          event.setUuid(items[0]);
  
          Map<Language, Description> descriptionMap = new HashMap<Language, Description>();
          descriptionMap.put(Language.DE, createDescription(
                  items[1], items[2], items[3], 
                  items[4], Language.DE, event));
          descriptionMap.put(Language.EN, createDescription(
                  items[5], items[6], items[7], 
                  items[8], Language.EN, event));
          event.setDescriptionMap(descriptionMap);
  
         event.setVisible(items[9].equals("true") ? true : false);
         event.setCreated(convertDateString(items[10]));
         event.setModified(convertDateString(items[11]));
         event.setModifiedBy(items[12]);
         event.setModifiedAddress(items[13]);
         
         event.setPrice(new BigDecimal(items[14]));
         event.setBeginning(convertDateString(items[15]));
         event.setEnding(convertDateString(items[16]));
         event.setDeadline(convertDateString(items[17]));
         
         Location location = locationDaoLocal.findByUuidWidthEvents(items[18]);
         location.getEvents().add(event);
         event.setLocation(location);
         
         event.setReservation(items[19].equals("true") ? true : false);
         event.setPicture(pictureDaoLocal.findByUuid(items[20]));
         
         event.setPiwikGoal(Integer.parseInt(items[21]));
         event.setMaxReservations(Integer.parseInt(items[22]));
         event.setMaxPersons(Integer.parseInt(items[23]));
         event.setPictureOnPage(items[24].equals("true") ? true : false);
 
         return event;
     }// Ende convert(String line)
 
     /**
      * Methode zum Konvertieren eines Strings des Formates "1970-12-01 23:59:59" in ein Date-Object. 
      * @param dateString
      * @return
      */
     private Date convertDateString(String dateString) {
         SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
         try {
             return simpleDateFormat.parse(dateString);
         } catch (ParseException e) {
             return new Date();
         }
     }
 
     private Description createDescription(
             String uuid, String name, String description, 
             String keywords, Language language, NamingItem namingItem) {
         Description pageDescription = new Description();
         pageDescription.setUuid(uuid);
         pageDescription.setName(name);
         pageDescription.setDescription(description);
         pageDescription.setKeywords(keywords);
         pageDescription.setLanguage(language);
         pageDescription.setNamingItem(namingItem);
         return pageDescription;
     }
 
     private void cleanup() {
         if(eventDaoLocal.countAll() > 0) {
             Iterator<Event> locationIterator = eventDaoLocal.findAll(0, eventDaoLocal.countAll()).iterator();
             while(locationIterator.hasNext()) {
                 Event next = locationIterator.next();
                 eventDaoLocal.delete(next);
             }
         }
     }// Ende cleanup()
 
 }// Ende class