package com.c2kernel.lifecycle.instance.predefined.entitycreation;

import java.util.ArrayList;

import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.w3c.dom.Text;

import com.c2kernel.collection.MembershipException;
import com.c2kernel.common.ObjectNotFoundException;
import com.c2kernel.lookup.DomainPath;
import com.c2kernel.property.PropertyDescription;
import com.c2kernel.property.PropertyDescriptionList;
import com.c2kernel.property.PropertyUtility;
import com.c2kernel.utils.CastorHashMap;
import com.c2kernel.utils.KeyValuePair;

public class Dependency implements java.io.Serializable {

    public String name;
    public boolean isDescription;
    public String itemDescriptionPath;
    public ArrayList<DependencyMember> dependencyMemberList = new ArrayList<DependencyMember>();
    public CastorHashMap props = new CastorHashMap();
    Element elem;

    public Dependency() {
        super();
    }

    public Dependency(String itemDesc) {
        this();
        this.itemDescriptionPath = itemDesc;
    }

    public Dependency(Element dep) {
    	elem = dep;
    	name = dep.getAttribute("name");
		isDescription = dep.getAttribute("isDescription").equals("true");
		NodeList cpnl = dep.getElementsByTagName("CollectionProperty");
		for (int k=0; k<cpnl.getLength(); k++) {
			Element p = (Element)cpnl.item(k);
			props.put(p.getAttribute("name"), ((Text)p.getFirstChild()).getData());
		}
		NodeList depmemnl = dep.getElementsByTagName("DependencyMember");
		for (int k=0; k<depmemnl.getLength(); k++) {
			Element p = (Element)depmemnl.item(k);
			dependencyMemberList.add(new DependencyMember(p));
		}
	}
    public KeyValuePair[] getKeyValuePairs() {
        return props.getKeyValuePairs();
    }

    public void setKeyValuePairs(KeyValuePair[] pairs) {
    	props.setKeyValuePairs(pairs);
    }

	/**
     * @return
     */
    public com.c2kernel.collection.Dependency create() throws MembershipException, ObjectNotFoundException {
        com.c2kernel.collection.Dependency newDep = isDescription?new com.c2kernel.collection.DependencyDescription(name):new com.c2kernel.collection.Dependency(name);
        if (itemDescriptionPath != null && itemDescriptionPath.length()>0) {
        	PropertyDescriptionList propList = PropertyUtility.getPropertyDescriptionOutcome(new DomainPath(itemDescriptionPath).getSysKey());
            StringBuffer classProps = new StringBuffer();
             for (PropertyDescription pd : propList.list) {
				props.put(pd.getName(), pd.getDefaultValue());
				if (pd.getIsClassIdentifier())
					classProps.append((classProps.length()>0?",":"")).append(pd.getName());
			}
             newDep.setProperties(props);
             newDep.setClassProps(classProps.toString());
        }

        for (DependencyMember thisMem : dependencyMemberList) {
            int syskey = new DomainPath(thisMem.itemPath).getSysKey();
            if (syskey == -1)
            	throw new MembershipException("Cannot find "+thisMem.itemPath+" specified for collection.");
            com.c2kernel.collection.DependencyMember newDepMem = newDep.addMember(syskey);
            newDepMem.getProperties().putAll(thisMem.props);
        }
        return newDep;
    }

}