/*
    * Trip Tracker, a real-time position tracking system for the Internet.
    * Copyright (C) 2006  Team Trip Tracker
    *
    * 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 2 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, write to the Free Software Foundation, Inc.,
   * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
   */
  
  package triptracker.client.map.core;
  
  import java.awt.image.BufferedImage;
  import java.io.IOException;
  import java.net.MalformedURLException;
  import java.net.URL;
  import java.util.Collection;
  import java.util.Iterator;
  import java.util.LinkedHashSet;
  import java.util.Set;
  
  import javax.imageio.ImageIO;
  import javax.swing.ImageIcon;
  
  public class WMSMapProvider extends AbstractMapProvider {
  //	private List<String> params = new ArrayList<String>();
  	private String srs = "EPSG:4326";
  //	private String srs = "EPSG:32632";
  	private Set<String> layers = new LinkedHashSet<String>();
  	private Set<String> styles = new LinkedHashSet<String>();
  	private String imageFormat = "image/png";
  	private String bgColor = "0xFFFFFF";
  	private boolean transparent = false;
  	private String providerUrl = "http://triptracker.dyndns.org/mapservice.php"
  			+ "?source=1&";
  //	private String providerUrl = "http://basiswms.statkart.no/wmsconnector"
  //		+ "/com.esri.wsit.WMSServlet/Topografisk_Norgeskart_wms?";
  //	private String providerUrl
  //			= "http://www.norgeibilder.no/services/wms/wms.aspx?";
  
  	public WMSMapProvider() {
  		super();
  		addDefLayers();
  	}
  	
  	public WMSMapProvider(int height, int width) {
  		super(height, width);
  		addDefLayers();
  	}
  	
  	/***
  	 * Adds default layers for the statkart.no WMS Topografisk_Norgeskart_wms.
  	 */
  	private void addDefLayers() {
  		addLayer("N5000Landtone");
  		addLayer("N5000Vannflate");
  		addLayer("N5000Markslag");
  		addLayer("N5000Vannkontur");
  		addLayer("N5000Veger");
  		addLayer("N5000Kommunegrenser");
  //		addLayer("N5000Bebyggelse");
  		addLayer("N5000Fylkesnavn");
  		addLayer("N2000Vannflate");
  		addLayer("N2000Markslag");
  		addLayer("N1000Markslag");
  		addLayer("N1000Vannflate");
  		addLayer("N1000Vannkontur");
  		addLayer("N1000Elver");
  		addLayer("N500Markslag");
  		addLayer("N2000Vannkontur");
  		addLayer("N2000Elver");
  		addLayer("N2000Veger");
  //		addLayer("N2000Bebyggelse");
  		addLayer("N1000Veger");
  		addLayer("N2000Kommunegrenser");
  		addLayer("N1000Kommunegrenser");
  		addLayer("N500Vannflate");
  		addLayer("N500Vannkontur");
  		addLayer("N500Elver");
  		addLayer("N500Veger");
  //		addLayer("N500Hoydekurver");
  		addLayer("N500Kommunegrenser");
  //		addLayer("N500Bebyggelse");
  		addLayer("N250Vannflate");
  		addLayer("N250Markslag_1");
  		addLayer("N250Vannkontur");
  		addLayer("N250Elver");
  		addLayer("N250Veger");
  		addLayer("N250Jernbane");
  		addLayer("N250Hoydekurver");
 		addLayer("N250Kommunegrenser");
 //		addLayer("N250Bebyggelse");
 		addLayer("N250Stedsnavn_punkt");
 		addLayer("N250Stedsnavn_punkt_1");
 		addLayer("N250Stedsnavn_linje");
 		addLayer("N250Stedsnavn_linje-1");
 		addLayer("N500Stedsnavn_punkt");
 		addLayer("N50Markslag");
 		addLayer("N50Vannflate");
 		addLayer("N50Vannkontur");
 		addLayer("N50Elver");
 		addLayer("N50Veger");
 		addLayer("N50Jernbane");
 		addLayer("N50Bygninger");
 		addLayer("N50Hoydekurver");
 		addLayer("N50Kommunegrenser");
 		addLayer("N50Bebyggelse");
 		addLayer("N50Stedsnavn_punkt");
 		addLayer("N50Stedsnavn_linje");
 		addLayer("FKB_HOYDE_LINJE");
 		addLayer("FKB_BYGG_FLATE");
 		addLayer("FKB_VEGNETT_LINJE");
 		addLayer("FKB_GATENAVN");
 		addLayer("FKB_ADRESSE_PUNKT");
 		addLayer("FKB_ADRESSE_PUNKT");
 		addLayer("FKB_Stedsnavn_punkt");
 		addLayer("FKB_Stedsnavn_linje");
 	}	
 	
 //	/***
 //	 * Adds default layers for the Norge i Bilder WMS.
 //	 */
 //	private void addDefLayersNoB() {
 //		addLayer("SatelliteImage");
 //		addLayer("Backdrops");
 //	}	
 
    	/***
 	 * {@inheritDoc}
 	 */
 	@Override
 	public ImageIcon getMap(double minX, double minY,
 			double maxX, double maxY) {
 		URL url = null;
 		BufferedImage bufImage = null;
 
 //		if (true) {
 //			UTMPoint coord = Coordinate.llToUTM(22, minY, minX);
 //			minX = coord.getEasting();
 //			minY = coord.getNorthing();
 //			coord = Coordinate.llToUTM(22, maxY, maxX);
 //			maxX = coord.getEasting();
 //			maxY = coord.getNorthing();
 //		}
 		
 		String bBox = "BBOX=" + minX + "," + minY + "," + maxX + "," + maxY;
 
 //		System.out.println("URL: " + providerUrl + getURLParams() + "&" + bBox);
 
 		try {
 			url = new URL(providerUrl + getURLParams() + "&" + bBox); 
 		} catch (MalformedURLException e) {
 			return null;
 		}
 		
         try {
 			bufImage = ImageIO.read(url);
 		} catch (IOException e) {
 			return null;
 		}
 		
 		ImageIcon image = null;
 		if (bufImage == null) {
 			System.out.println("WMSMapProvider.getMap(): "
 					+ "Received map image == null");
 		}
 		else 
 			image = new ImageIcon(bufImage);
 		return image;
 	}
 	
 	/***
 	 * Compiles the list of arguments for the provider URL.
 	 * 
 	 * @return provider URL arguments
 	 */
 	private String getURLParams() {
 		StringBuilder params = new StringBuilder();
 		Iterator<String> iter;
 		
 		params.append("REQUEST=GetMap&SERVICE=WMS&VERSION=1.1.1");
 		
 		// Add all layers.
 		params.append("&LAYERS=");
 		if (layers.size() > 0) {
 			iter = layers.iterator();
 			params.append(iter.next());
 			
 			while (iter.hasNext()) {
 				params.append("," + iter.next());
 			}
 		}
 		
 		params.append("&STYLES=");
 		// Add all styles.
 
 		if (styles.size() > 0) {
 			iter = styles.iterator();
 			params.append(iter.next());
 			
 			while (iter.hasNext()) {
 				params.append("," + iter.next());
 			}
 		}
 		
 		params.append("&FORMAT=" + getImageFormat());
 		params.append("&BGCOLOR=" + getBackgroundColor());
 		params.append("&TRANSPARENT=" + isTransparent());
 		params.append("&SRS=" + getSRS());
 		params.append("&WIDTH=" + getWidth());
 		params.append("&HEIGHT=" + getHeight());
 
 		return params.toString();
 	}
 	
 	public void addLayers(Collection<String> layers) {
 		this.layers.addAll(layers);
 	}
 	
 	public void addLayer(String layerName) {
 		layers.add(layerName);
 	}
 	
 	public boolean hasLayer(String layerName) {
 		return layers.contains(layerName);
 	}
 	
 	public void removeLayer(String layerName) {
 		layers.remove(layerName);
 	}
 	
 	public void removeAllLayers() {
 		layers.clear();
 	}
 	public void addStyles(Collection<String> styles) {
 		this.styles.addAll(styles);
 	}
 	
 	public void addStyle(String styleName) {
 		styles.add(styleName);
 	}
 	
 	public boolean hasStyle(String styleName) {
 		return styles.contains(styleName);
 	}
 	
 	public void removeStyle(String styleName) {
 		styles.remove(styleName);
 	}
 	
 	public void removeAllStyles() {
 		styles.clear();
 	}
 
 	public String getImageFormat() {
 		return imageFormat;
 	}
 
 	public void setImageFormat(String imageFormat) {
 		this.imageFormat = imageFormat;
 	}
 
 	public String getProviderUrl() {
 		return providerUrl;
 	}
 
 	public void setProviderUrl(String providerUrl) {
 		this.providerUrl = providerUrl;
 	}
 
 	public String getSRS() {
 		return srs;
 	}
 
 	public void setSRS(String srs) {
 		this.srs = srs;
 	}
 
 	public String getBackgroundColor() {
 		return bgColor;
 	}
 
 	public void setBackgroundColor(String bgColor) {
 		this.bgColor = bgColor;
 	}
 
 	public boolean isTransparent() {
 		return transparent;
 	}
 
 	public void setTransparent(boolean transparent) {
 		this.transparent = transparent;
 	}
 
 }