/*
 * Copyright
 *   2007 axYus - www.axyus.com
 *   2007 C.Marchand - christophe.marchand@axyus.com
 *
 * This file is part of XEMELIOS.
 *
 * XEMELIOS is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * XEMELIOS 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with XEMELIOS; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package fr.gouv.finances.cp.xemelios.common.config;

import java.util.Enumeration;
import java.util.HashMap;
import java.util.Hashtable;
import java.util.StringTokenizer;
import java.util.Vector;

import org.apache.log4j.Logger;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;

import fr.gouv.finances.cp.utils.xml.marshal.InvalidXmlDefinition;
import fr.gouv.finances.cp.utils.xml.marshal.NoeudModifiable;
import fr.gouv.finances.cp.utils.xml.marshal.XmlAttributes;
import fr.gouv.finances.cp.utils.xml.marshal.XmlMarshallable;
import fr.gouv.finances.cp.utils.xml.marshal.XmlOutputter;
import javax.xml.namespace.QName;

public class EnvironmentModel implements NoeudModifiable {
    private static Logger logger = Logger.getLogger(EnvironmentModel.class);
    private NoeudModifiable _NMParent = null;
    
    public static final transient String TAG = "environment";
    public static final transient QName QN = new QName(TAG);
    public static final int ALL_DOMAINS= -1;
    private Vector<VariableModel> vVariables;
    private Hashtable<Integer,Vector<VariableModel>> variablesByDomain;
    private HashMap<String,VariableModel> hVariableModels;
    
    public EnvironmentModel(QName tagName) {
        super();
        vVariables = new Vector<VariableModel>();
        variablesByDomain = new Hashtable<Integer,Vector<VariableModel>> ();
        hVariableModels = new HashMap<String,VariableModel>();
    }
    
    public void addCharacterData(String cData) throws SAXException {}
    
    public void addChild(XmlMarshallable child, QName tagName) throws SAXException {
            VariableModel vm = (VariableModel)child;
            String key = vm.getName()+"|"+vm.getDomain();
            if(hVariableModels.containsKey(key)) {
                VariableModel old = hVariableModels.get(key);
                vVariables.remove(old);
                hVariableModels.remove(key);
            }
            vm.setParentAsNoeudModifiable(this);
            hVariableModels.put((key), vm);
            vVariables.add(vm);
            Integer domain = new Integer(vm.getDomain());
            Vector<VariableModel> vars = variablesByDomain.get(domain);
            if(vars==null) {
                vars = new Vector<VariableModel>();
                variablesByDomain.put(domain,vars);
            }
            vars.add(vm);
    }
    
    public XmlMarshallable getAttributes(XmlAttributes attributes) throws SAXException {
        return this;
    }
    
    public void marshall(XmlOutputter output) {}
    
    public void validate() throws InvalidXmlDefinition {
        for(VariableModel vm:vVariables) vm.validate();
    }
    
    public EnvironmentModel clone() {
        EnvironmentModel other = new EnvironmentModel(QN);
        for(VariableModel vm:vVariables) {
            try { other.addChild(vm.clone(),VariableModel.QN); } catch(Throwable t) {}
        }
        return other;
    }
    public Enumeration<VariableModel> getVariables(int domain) {
        if(domain==ALL_DOMAINS) return vVariables.elements();
        Vector<VariableModel> ret = variablesByDomain.get(new Integer(domain));
        if(ret==null) return null;
        return ret.elements();
    }
    
    public void setParentAsNoeudModifiable(NoeudModifiable p) {
        this._NMParent = p;
    }
    public NoeudModifiable getParentAsNoeudModifiable() {
        return this._NMParent;
    }
    public NoeudModifiable getChildAsNoeudModifiable(String tagName, String id) {
        // l'id passé est mal formaté.
        // en effet, la dernière partie doit être convertie en int comme fait dans VariableModel...
        StringTokenizer st = new StringTokenizer(id, "|");
        String sId = st.nextToken()+"|";
        if("documents".equals(st.nextToken())) sId+=EnvironmentDomain.DOMAIN_DOCUMENTS;
        else sId+=EnvironmentDomain.DOMAIN_ELEMENT;
        
        return hVariableModels.get(sId);
    }
    public void modifyAttr(String attrName, String value) {
        // TODO Raccord de méthode auto-généré
        
    }
    public void modifyAttrs(Attributes attrs) {
        try {
            getAttributes(new XmlAttributes(attrs));
        } catch (Exception e) {
            logger.error("Erreur lors de la mise à jour des attributs : "+e);
        }
    }
    
    public String[] getChildIdAttrName(String childTagName) {
        return new String[]{"name", "domain"};
    }
    
    public void resetCharData() {
    }
    public String getIdValue() { return null; }
    private String configXPath = null;
    public String getConfigXPath() {
        if(configXPath==null) {
            if(getParentAsNoeudModifiable()!=null) configXPath = getParentAsNoeudModifiable().getConfigXPath();
            else configXPath="";
            configXPath+="/"+TAG;
        }
        return configXPath;
    }

    public XmlMarshallable getChildToModify(String uri, String localName, String qName, Attributes atts) {
        return hVariableModels.get(atts.getValue("name")+"|"+atts.getValue("domain"));
    }

    public QName getQName() {
        return QN;
    }
}
