package de.intevation.flys.artifacts.states;

import org.w3c.dom.Element;

import de.intevation.artifacts.Artifact;
import de.intevation.artifacts.CallContext;

import de.intevation.artifacts.common.ArtifactNamespaceContext;
import de.intevation.artifacts.common.utils.XMLUtils.ElementCreator;

import de.intevation.artifactdatabase.ProtocolUtils;

import de.intevation.flys.artifacts.FLYSArtifact;


/**
 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
 */
public abstract class MinMaxState extends DefaultState {

    @Override
    protected void appendItems(
        Artifact       artifact,
        ElementCreator creator,
        String         name,
        CallContext    context,
        Element        select
    ) {
        FLYSArtifact flys = (FLYSArtifact) artifact;

        select.setAttributeNS(
            ArtifactNamespaceContext.NAMESPACE_URI,
            "art:type",
            getType());

        Element min = ProtocolUtils.createArtNode(
            creator,
            "min",
            new String[] { "value" },
            new String[] { String.valueOf(getLower(flys)) });

        Element max = ProtocolUtils.createArtNode(
            creator,
            "max",
            new String[] { "value" },
            new String[] { String.valueOf(getUpper(flys)) });

        select.appendChild(min);
        select.appendChild(max);
    }


    protected abstract Object getLower(FLYSArtifact flys);

    protected abstract Object getUpper(FLYSArtifact flys);

    protected abstract String getType();
}
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