package de.mpiwg.anteater.xml.impl;

import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

import org.jdom2.Attribute;
import org.jdom2.DataConversionException;
import org.jdom2.Element;
import org.jdom2.Namespace;

import de.mpiwg.anteater.species.scientific.ScientificName;
import de.mpiwg.anteater.xml.INameFinderParser;

public class GNRDXMLParser extends JDOMParser implements INameFinderParser {

	public GNRDXMLParser(String content) {
		super(content, false);
	}	
	
	public GNRDXMLParser(InputStream stream) {
		super(stream);
	}


	/* (non-Javadoc)
	 * @see de.mpiwg.anteater.xml.impl.INameFinderParser#getStatus()
	 */
	@Override
	public String getStatus() {
		List<Element> results = executeXPath("//status", null);
		if (results.size() > 0) {
			Element statusNode = results.get(0);
			return stripText(statusNode);
		}
		return null;
	}
	
	/* (non-Javadoc)
	 * @see de.mpiwg.anteater.xml.impl.INameFinderParser#getTokenURL()
	 */
	@Override
	public String getTokenURL() {
		List<Element> results = executeXPath("//token_url", null);
		if (results.size() > 0) {
			Element statusNode = results.get(0);
			return stripText(statusNode);
		}
		return null;
	}
	
	@Override
	public List<ScientificName> parseScientificNames() {
		List<Element> names = executeXPath("/result/names/name", null);
		
		List<ScientificName> scientificNames = new ArrayList<ScientificName>();
		for (Element name : names) {
			ScientificName scienName = new ScientificName();
			
			Element verbNode = name.getChild("verbatim");
			scienName.setReferenceInText(verbNode.getText());
			
			Element identNode = name.getChild("identifiedName");
			if (identNode != null)
				scienName.setIdentifiedName(identNode.getText());
			
			Element scientNode = name.getChild("scientificName", Namespace.getNamespace("http://rs.tdwg.org/dwc/terms/"));
			if (scientNode != null)
				scienName.setScientificName(scientNode.getText());
			
			Element offsetNode = name.getChild("offset");
			if (offsetNode != null) {
				Attribute startAttr = offsetNode.getAttribute("start");
				int start = -1;
				if (startAttr != null) {
					try {
						start = startAttr.getIntValue();
					} catch (DataConversionException e) {
						// TODO Auto-generated catch block
						e.printStackTrace();
					}
				}
				if (start > -1) {
					scienName.setStart(start);
				
					Attribute endAttr = offsetNode.getAttribute("end");
					if (endAttr != null) {
						try {
							scienName.setLength(endAttr.getIntValue() - start + 1);
						} catch (DataConversionException e) {
							// TODO Auto-generated catch block
							e.printStackTrace();
						}
					}
				}		
			}
			
			scientificNames.add(scienName);
		}
		
		return scientificNames;
	}
}