/**
 *
 */
package de.intevation.gnv.transition;

import java.util.ArrayList;
import java.util.Collection;

import org.apache.log4j.Logger;

import com.vividsolutions.jts.geom.Point;

import de.intevation.gnv.geobackend.base.Result;
import de.intevation.gnv.transition.describedata.KeyValueDescibeData;
import de.intevation.gnv.transition.describedata.NamedCollection;
import de.intevation.gnv.utils.InputValidator;
import de.intevation.gnv.utils.exception.ValidationException;

/**
 * @author Tim Englich <tim.englich@intevation.de>
 *
 */
public class CoordinateSelectionTransition extends TransitionBase {

    /**
     * the logger, used to log exceptions and additonaly information
     */
    private static Logger log = Logger.getLogger(CoordinateSelectionTransition.class);
    
    /**
     * The UID of this Class
     */
    private static final long serialVersionUID = 6318923553625195063L;

    /**
     * Constructor
     */
    public CoordinateSelectionTransition() {
        super();
    }

    /**
     * @see de.intevation.gnv.transition.Transition#validate()
     */
    public boolean validate() {
        return true;
    }

    @Override
    protected void purifyResult(Collection<Result> result, String uuid) {
        log.debug("CoordinateSelectionTransition.purifyResult");
        if (this.descibeData == null) {
            this.descibeData = new ArrayList<Object>();
        }
        NamedCollection<KeyValueDescibeData> keyValueDescibeData = this
                .extractKVP(result, "FEATUREID", "SHAPE");
        this.descibeData.add(keyValueDescibeData);
    }
    
    @Override
    protected String prepareInputData4RegionDBQuery(String value) {
        log.debug("CoordinateSelectionTransition.prepareInputData4RegionDBQuery");
        double distance=0.;
        String returnValue = null;
        try {
            Point center = new InputValidator().getPointValue(value);
            String meshIDValue = super.inputData.get("meshid").getValue();
            int segments = 97;
            int meshid = new Integer(meshIDValue);
            if (meshid == 3 || meshid == 5){ // TODO nicht hier festbrennen.
                distance = 0.15; //nord-ostsee 6nm // 97 St�tzpunkte
            }else if (meshid == 1 || meshid == 4){
                distance = 0.03; //Kuestenmodell 1 nm
            }else if (meshid == 2 || meshid == 321){
                distance = 0.3; //SST Karten ca 20km
            }else if (meshid == 641){
                distance = 0.3; //Eisdaten Klima
            }
            returnValue = center.buffer(distance,segments).toText();
        } catch (NumberFormatException e) {
            log.error(e,e);
        } catch (ValidationException e) {
            log.error(e,e);
        }
        return returnValue;
        
    }
}