package org.gcube.portlets.user.accountingdashboard.server.accounting;

import java.util.ArrayList;

import org.gcube.accounting.accounting.summary.access.model.Record;
import org.gcube.accounting.accounting.summary.access.model.Report;
import org.gcube.accounting.accounting.summary.access.model.ReportElement;
import org.gcube.accounting.accounting.summary.access.model.Series;
import org.gcube.portlets.user.accountingdashboard.shared.data.RecordData;
import org.gcube.portlets.user.accountingdashboard.shared.data.ReportData;
import org.gcube.portlets.user.accountingdashboard.shared.data.ReportElementData;
import org.gcube.portlets.user.accountingdashboard.shared.data.SeriesData;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * 
 * @author Giancarlo Panichi
 *
 */
public class ReportDataBuilder {
	private static Logger logger = LoggerFactory.getLogger(ReportDataBuilder.class);

	private Report report;

	public ReportDataBuilder(Report report) {
		this.report = report;
	}

	public ReportData build() {
		if (report == null || report.getElements() == null) {
			logger.error("Invalid report: " + report);
			return null;
		}

		ArrayList<ReportElementData> elements = new ArrayList<>();
		for (ReportElement reportElement : report.getElements()) {
			if (reportElement.getSerieses() == null) {
				ReportElementData reportElementData = new ReportElementData(reportElement.getLabel(),
						reportElement.getCategory(), reportElement.getXAxis(), reportElement.getYAxis(), null);
				elements.add(reportElementData);
			} else {
				ArrayList<SeriesData> serieses = new ArrayList<>();
				for (Series series : reportElement.getSerieses()) {
					SeriesData seriesData = null;
					if (series.getDataRow() == null) {
						seriesData = new SeriesData(series.getLabel(), null);
					} else {
						ArrayList<RecordData> dataRow = new ArrayList<>();
						for (Record record : series.getDataRow()) {
							RecordData recordData = new RecordData(record.getX(), record.getY());
							dataRow.add(recordData);
						}
						seriesData = new SeriesData(series.getLabel(), dataRow);
					}
					serieses.add(seriesData);
				}
				ReportElementData reportElementData = new ReportElementData(reportElement.getLabel(),
						reportElement.getCategory(), reportElement.getXAxis(), reportElement.getYAxis(), serieses);
				elements.add(reportElementData);
			}
		}
		ReportData reportData = new ReportData(elements);
		logger.debug("ReportData: " + reportData);
		return reportData;

	}

}