/***********************************************************************

 * mt4j Copyright (c) 2008 - 2009 C.Ruff, Fraunhofer-Gesellschaft All rights reserved.

 *  

 *   This program is free software: you can redistribute it and/or modify

 *   it under the terms of the GNU General Public License as published by

 *   the Free Software Foundation, either version 3 of the License, or

 *   (at your option) any later version.

 *

 *   This program is distributed in the hope that it will be useful,

 *   but WITHOUT ANY WARRANTY; without even the implied warranty of

 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 *   GNU General Public License for more details.

 *

 *   You should have received a copy of the GNU General Public License

 *   along with this program.  If not, see <http://www.gnu.org/licenses/>.

 *

 ***********************************************************************/

package advanced.flickrMT;



import java.io.IOException;

import java.util.ArrayList;

import java.util.List;



import javax.xml.parsers.ParserConfigurationException;



import org.mt4j.components.visibleComponents.widgets.progressBar.AbstractProgressThread;

import org.xml.sax.SAXException;



import processing.core.PApplet;

import processing.core.PImage;



import com.aetrion.flickr.Flickr;

import com.aetrion.flickr.FlickrException;

import com.aetrion.flickr.REST;

import com.aetrion.flickr.RequestContext;

import com.aetrion.flickr.auth.AuthInterface;

import com.aetrion.flickr.photos.GeoData;

import com.aetrion.flickr.photos.Photo;

import com.aetrion.flickr.photos.PhotoList;

import com.aetrion.flickr.photos.PhotosInterface;

import com.aetrion.flickr.photos.SearchParameters;

import com.aetrion.flickr.photos.geo.GeoInterface;

import com.aetrion.flickr.places.Place;

import com.aetrion.flickr.places.PlacesInterface;

import com.aetrion.flickr.places.PlacesList;



/**

 * The Class FlickrLoader.

 */

public class FlickrLoader extends AbstractProgressThread {

	/** The images. */

	private PImage[] images;

	

	/** The pa. */

	private PApplet pa;

	

	/** The use places for geo search. */

	private boolean usePlacesForGeoSearch;

	

//	private ImageCard mtFotos[];

	

	

//	private FlickrHelper flickHelper;

	

	/** The search parameters. */

private SearchParameters searchParameters;

	

	/** The foto count. */

	private int fotoCount;

	

	/** The search page offset. */

	private int searchPageOffset;

	

	/** The flickr key. */

	private String flickrKey;

	

	/** The flickr secret. */

	private String flickrSecret;

	

	// A Flickr object for making requests

	/** The f. */

	private Flickr f;

	

	/** The auth interface. */

	private AuthInterface authInterface;

	

	/** The request context. */

	private RequestContext requestContext;

	

	/** The photos. */

	private List<Photo> photos;

	

	/**

	 * The Constructor.

	 * 

	 * @param pa the pa

	 * @param flickrKey the flickr key

	 * @param flickrSecret the flickr secret

	 * @param sleepTime the sleep time

	 */

	public FlickrLoader(PApplet pa, String flickrKey, String flickrSecret, long sleepTime) {

		this(pa, flickrKey, flickrSecret, new String[]{}, sleepTime);

	}

	

	

	/**

	 * The Constructor.

	 * 

	 * @param pa the pa

	 * @param flickrKey the flickr key

	 * @param flickrSecret the flickr secret

	 * @param photoSearchString the photo search string

	 * @param sleepTime the sleep time

	 */

	public FlickrLoader(PApplet pa, String flickrKey, String flickrSecret, String photoSearchString, long sleepTime) {

		this(pa, flickrKey, flickrSecret, new String[]{photoSearchString}, sleepTime);

	}

	

	/**

	 * The Constructor.

	 * 

	 * @param pa the pa

	 * @param flickrKey the flickr key

	 * @param flickrSecret the flickr secret

	 * @param photoSearchString the photo search string

	 * @param sleepTime the sleep time

	 */

	public FlickrLoader(PApplet pa, String flickrKey, String flickrSecret, String[] photoSearchString, long sleepTime) {

		this(pa, flickrKey, flickrSecret, new SearchParameters(), sleepTime);

		

		SearchParameters sp = new SearchParameters();

		// Simple example, just looking for a single tag

		sp.setTags(photoSearchString);

		this.setSearchParameters(sp);

	}

	

	/**

	 * The Constructor.

	 * 

	 * @param pa the pa

	 * @param flickrKey the flickr key

	 * @param flickrSecret the flickr secret

	 * @param sleepTime the sleep time

	 * @param sp the sp

	 */

	public FlickrLoader(PApplet pa, String flickrKey, String flickrSecret, SearchParameters sp, long sleepTime) {

		super(sleepTime);

		this.pa = pa;

		

		try {

			f = new Flickr(flickrKey, flickrSecret, new REST());

		} catch (ParserConfigurationException e) {

			e.printStackTrace();

		}

		authInterface	= f.getAuthInterface();

		requestContext 	= RequestContext.getRequestContext();

		

		this.searchParameters 	= sp;

		this.fotoCount 			= 5;

		this.searchPageOffset 	= 0;

		

		this.photos = new ArrayList<Photo>();

		

		this.usePlacesForGeoSearch = true;

	}



	

	/* (non-Javadoc)

	 * @see com.jMT.components.visibleComponents.progressBar.AbstractProgressThread#run()

	 */

	@Override

	public void run() {

		if (this.getSearchParameters() != null){

			

			/*

			//Print search tags

			System.out.print("\nSearching for flickr tags: " );

			String[] tags = this.getSearchParameters().getTags();

			if (tags != null){

				for (int i = 0; i < tags.length; i++) {

					String string = tags[i];

					System.out.print(string + ", ");

				}

				System.out.println();

			}

			*/

			

			boolean isGeoSearch = this.isGeoSearch(this.getSearchParameters());

			PhotoList fotoList = this.getSearchedFotoList(this.getSearchParameters(), this.getFotoLoadCount(), this.getSearchPageOffset(), isGeoSearch);

			

			if (fotoList != null && fotoList.size() > 0){

//				System.out.println("Found " + fotoList.size() + " fotos.");

				

				this.setTarget(fotoList.size());

//				mtFotos = new ImageCard[fotoList.size()];

				

				//Go through all found fotos

				for (int i = 0; i < fotoList.size(); i++) {

					

					try {

						Thread.sleep(this.getSleepTime()); 

					} catch (InterruptedException e) {

						e.printStackTrace();

						//pa.unregisterPre(this);

						this.setFinished(true);

						break;

					}

					

					Photo foto = (Photo) fotoList.get(i);

					String fotoName = foto.getTitle();

					

					/*

					if (foto.hasGeoData()){

						System.out.println("Foto: " + fotoName + " has geodata.");

						System.out.println(fotoName + "-> Lat:" + foto.getGeoData().getLatitude() + " Lon:" + foto.getGeoData().getLongitude() + " PlaceID: " + foto.getPlaceId());

					}

					*/

					

					this.setCurrentAction("Loading: " + fotoName);

					

					this.processFoto(foto);



					this.setCurrent(i+1);

				}

			}else{

				System.err.println("Foto list returned null or list is empty!");

				//Fire event that all loaded

				this.setFinished(true);

			}

		}//if sp != null

		else{

			System.err.println("No search parameters for flickr search specified!");

			//Fire event that all loaded

			this.setFinished(true);

		}

//		this.setFinished(true);

	}

	

	

	/**

	 * This method gets called in the loading thread of the fotos. This

	 * method can be overridden and used to process the newly loaded foto in different ways.

	 * 

	 * @param foto the foto

	 */

	protected void processFoto(Photo foto){

	}



	

	/**

	 * Searches fotos on flickr with the specified searchparameters.

	 * 

	 * @param sp the sp

	 * @param n number of fotos to search for

	 * @param startPage offset of the result pages to start from

	 * @param isGeoSearch the is geo search

	 * 

	 * @return the searched foto list

	 * 

	 * the list of found fotos

	 */

	public PhotoList getSearchedFotoList(SearchParameters sp, int n, int startPage, boolean isGeoSearch) {

		PhotoList photoList = null;

		//Interface with Flickr photos

		PhotosInterface photoInterface = f.getPhotosInterface();

		

		try {

			//TODO was kann man damit machen?

			//GeoInterface g = photos.getGeoInterface();

			//search results for exact location, display on map

			

			/*

			//Search in a location bounding box

			sp.setBBox(

					"16.3680536232", "48.2057162608", 

					"16.3760536232", "48.2111162608");

			sp.setAccuracy(1);

			sp.setHasGeo(true);

			*/

			

			//Search in a location with a radius

			/*

			sp.setLatitude("48.7771056");

			sp.setLongitude("9.1807688");

			sp.setRadius(5);

			sp.setRadiusUnits("km");

			sp.setHasGeo(true);

			sp.setAccuracy(Flickr.ACCURACY_REGION);

			*/

			

			

//			/*

			//Instead of taking the location, search for a nearby flickr "place"

			if (isGeoSearch && sp.getLongitude() != null && sp.getLatitude() != null

				&& usePlacesForGeoSearch

			){

				//TODO TEST DISABLE FIXME

				//Search for places at a location

				PlacesInterface p = f.getPlacesInterface();

				PlacesList placesList = null;

//				placesList = p.findByLatLon(48.7771056f, 	9.1807688f, 14);

//				placesList = p.findByLatLon(40.689, -74.044, 12); //liberty islang

				placesList = p.findByLatLon(Double.parseDouble(sp.getLatitude()), Double.parseDouble(sp.getLongitude()), sp.getAccuracy());



				sp.setLatitude(null);

				sp.setLongitude(null);

				

				System.out.println("Places found: " + placesList.size());

                for (Object aPlacesList : placesList) {

                    Place place = (Place) aPlacesList;

                    String placeID = place.getPlaceId();

                    //System.out.println("Place ID: " + placeID);



                    sp.setPlaceId(placeID);

                    sp.setWoeId(place.getWoeId());



//					Location placeResolved = p.resolvePlaceURL(place.getPlaceUrl());

//					System.out.println("Place: " + placeResolved);



//					sp.setBBox(

//					48.5129f, 2.1740f, 

//					48.5130f, 2.1741f);

                }

			}

//			else if (isGeoSearch && sp.getLongitude() != null && sp.getLatitude() != null

//					&& !usePlacesForGeoSearch){

//				

//			}

//			*/

			

			//We're looking for n images, starting at "page" startPage

			//PhotoList 

			photoList = photoInterface.search(sp, n, startPage);

			

			//Check if no fotos were found and search again with reduced accurracy

			if (isGeoSearch

				&&	photoList 		!= null

				){

				System.out.println("Found " + photoList.size() + " fotos.");

				

				if (photoList.size() <= 0){

					System.out.println("Found no fotos, reducing accuracy and trying again.");

					int a = sp.getAccuracy();

					

					for (int i = 1; i < 6; i++) {

						a--;

						if (a < 1){

							a++;

							break;

						}

					}

					

					System.out.println("Using new accuracy: " + a);

					sp.setAccuracy(a);

					photoList = photoInterface.search(sp, n, startPage);

					if (photoList != null)

						System.out.println("Found " + photoList.size() + " fotos.");

				}

			}

			

			if (isGeoSearch){

				//System.out.println("Trying to attach geo information:");

				if (photoList != null){

					GeoInterface g = photoInterface.getGeoInterface();

					

					//Nullpointer error - bug in flickj library,

					//photosForLocation return aber evtl nur eigene fotos!

//					PhotoList fot = g.photosForLocation(new GeoData( new Float(48.7771056f).toString(), new Float(9.1807688f).toString(), new Integer(1).toString()), null, 5, 0);

//					System.out.println("photosForLocation (location = stutgart mitte) returned fotos: " +  fot.size());

					

					//Go through all found fotos

                    for (Object aPhotoList : photoList) {

                        Photo foto = (Photo) aPhotoList;

                        //Add to result list

                        photos.add(foto);



                        String id = foto.getId();

                        try {

                            GeoData loc = g.getLocation(id);

                            if (loc != null) {

                                foto.setGeoData(loc);

                            }

                        } catch (Exception e) {

                            System.err.println("Error fetching geodata for foto");

                            e.printStackTrace();

                        }

                    }

				}

			}else{

				//Add to result list

				if (photoList != null){

                    for (Object aPhotoList : photoList) {

                        photos.add((Photo) aPhotoList);

                    }

				}

			}

			

			//Geht nur mit eigenen fotos!?

//			photos.getWithGeoData(arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8);



			return photoList;

		} catch (IOException e) {

			e.printStackTrace();

		} catch (SAXException e) {

			e.printStackTrace();

		} catch (FlickrException e) {

			e.printStackTrace();

		}

		return photoList;

	}

	

	

	/**

	 * Checks if is geo search.

	 * 

	 * @param sp the sp

	 * 

	 * @return true, if is geo search

	 */

	private boolean isGeoSearch(SearchParameters sp){

		return

		(

			   (sp.getLatitude() != null //TODO is it null when not set?

			&&	!sp.getLatitude().equalsIgnoreCase(""))

			||

				(sp.getLongitude() != null

			&& 	!sp.getLongitude().equalsIgnoreCase(""))

			||

				(sp.getBBox() != null

			&&	 sp.getBBox().length > 0)

			||

			(sp.getWoeId() != null

			&& 	!sp.getWoeId().equalsIgnoreCase(""))

			||

			(sp.getPlaceId() != null

			&& 	!sp.getPlaceId().equalsIgnoreCase(""))

			|| sp.getRadius() != -1

		);

	}

	

	/**

	 * Gets the foto urls.

	 * 

	 * @param list the list

	 * 

	 * @return the foto urls

	 */

	private String[] getFotoUrls(PhotoList list){

		//Grab all the image paths and store in String array

		String[] smallURLs = new String[list.size()];

		for (int i = 0; i < list.size(); i++) {

			Photo p = (Photo) list.get(i);

//			smallURLs[i] = p.getSmallUrl();

//			smallURLs[i] = p.getUrl();

			smallURLs[i] = p.getMediumUrl();

		}

		return smallURLs;

	}

	

	

	

	/**

	 * Gets the foto load count.

	 * 

	 * @return the foto load count

	 */

	public int getFotoLoadCount() {

		return fotoCount;

	}

	

	/**

	 * Sets the foto load count.

	 * 

	 * @param fotosCount the new foto load count

	 */

	public void setFotoLoadCount(int fotosCount) {

		this.fotoCount = fotosCount;

	}



	

	/**

	 * Gets the search parameters.

	 * 

	 * @return the search parameters

	 */

	public SearchParameters getSearchParameters() {

		return searchParameters;

	}

	

	/**

	 * Sets the search parameters.

	 * 

	 * @param searchParameters the new search parameters

	 */

	public void setSearchParameters(SearchParameters searchParameters) {

		this.searchParameters = searchParameters;

	}

	

	

	/**

	 * Gets the search page offset.

	 * 

	 * @return the search page offset

	 */

	private int getSearchPageOffset() {

		return this.searchPageOffset;

	}

	

	/**

	 * Sets the search page offset.

	 * 

	 * @param searchPageOffset the new search page offset

	 */

	public void setSearchPageOffset(int searchPageOffset) {

		this.searchPageOffset = searchPageOffset;

	}



	

	/**

	 * Gets the flickr key.

	 * 

	 * @return the flickr key

	 */

	public String getFlickrKey() {

		return flickrKey;

	}

	

	/**

	 * Sets the flickr key.

	 * 

	 * @param flickrKey the new flickr key

	 */

	public void setFlickrKey(String flickrKey) {

		this.flickrKey = flickrKey;

	}





	/**

	 * Gets the flickr secret.

	 * 

	 * @return the flickr secret

	 */

	public String getFlickrSecret() {

		return flickrSecret;

	}

	

	/**

	 * Sets the flickr secret.

	 * 

	 * @param flickrSecret the new flickr secret

	 */

	public void setFlickrSecret(String flickrSecret) {

		this.flickrSecret = flickrSecret;

	}

	



	/**

	 * Gets the photos.

	 * 

	 * @return the photos

	 */

	public Photo[] getPhotos() {

		return this.photos.toArray(new Photo[this.photos.size()]);

	}





	/**

	 * Checks if is use places for geo search.

	 * 

	 * @return true, if is use places for geo search

	 */

	public boolean isUsePlacesForGeoSearch() {

		return usePlacesForGeoSearch;

	}





	/**

	 * Uses flickr "places" for the geo search

	 * 

	 * @param usePlacesForGeoSearch the new use places for geo search

	 */

	public void setUsePlacesForGeoSearch(boolean usePlacesForGeoSearch) {

		this.usePlacesForGeoSearch = usePlacesForGeoSearch;

	}

	



	







}