package de.intevation.flys.artifacts.states;

import java.util.ArrayList;
import java.util.List;

import org.apache.log4j.Logger;

import de.intevation.artifacts.CallContext;

import de.intevation.artifactdatabase.state.Facet;

import de.intevation.flys.artifacts.FLYSArtifact;
import de.intevation.flys.artifacts.MINFOArtifact;
import de.intevation.flys.artifacts.model.DataFacet;
import de.intevation.flys.artifacts.model.FacetTypes;
import de.intevation.flys.artifacts.model.CalculationResult;
import de.intevation.flys.artifacts.model.sq.SQCurveFacet;
import de.intevation.flys.artifacts.model.sq.SQMeasurementFacet;
import de.intevation.flys.artifacts.model.sq.SQOutlierFacet;
import de.intevation.flys.artifacts.model.sq.SQRelationCalculation;
import de.intevation.flys.artifacts.model.sq.SQResult;
import de.intevation.flys.artifacts.states.DefaultState;

/**
 * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
 */
public class SQRelation extends DefaultState implements FacetTypes {

    private static Logger logger = Logger.getLogger(SQRelation.class);


    public SQRelation() {
    }


    @Override
    public Object computeAdvance(
        FLYSArtifact artifact,
        String       hash,
        CallContext  context,
        List<Facet>  facets,
        Object       old
    ) {
        logger.debug("SQRelation.computeAdvance");

        List<Facet> newFacets = new ArrayList<Facet>();

        CalculationResult res = old instanceof CalculationResult
            ? (CalculationResult) old
            : new SQRelationCalculation().calculate((MINFOArtifact) artifact);

        if (facets == null || res == null) {
            return res;
        }

        SQResult[] sqr = (SQResult[]) res.getData();
        createFacets(newFacets, sqr, hash);

        Facet csv = new DataFacet(
            CSV, "CSV data", ComputeType.ADVANCE, hash, id);

        Facet pdf = new DataFacet(
            PDF, "PDF data", ComputeType.ADVANCE, hash, id);

        newFacets.add(csv);
        newFacets.add(pdf);

        logger.debug("Created " + newFacets.size() + " new Facets.");

        facets.addAll(newFacets);

        return res;
    }


    protected void createFacets(
        List<Facet> container,
        SQResult[]  sqr,
        String      hash
    ) {
        // TODO Create facets for each parameter type (A-F)
        container.add(new SQMeasurementFacet(0, SQ_A_MEASUREMENT, "TODO"));
        container.add(new SQCurveFacet(0, SQ_A_CURVE, "TODO"));

        for (int i = 0; i < sqr[0].getOutliersCount(); i++) {
            container.add(new SQOutlierFacet(
                0,
                i,
                SQ_A_OUTLIER,
                "OUTLIER AT" + i,
                getID(),
                hash
            ));
        }
    }
}
// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :