/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */
package com.sun.star.report.pentaho;

import com.sun.star.report.DataSourceFactory;
import com.sun.star.report.ImageService;
import com.sun.star.report.InputRepository;
import com.sun.star.report.OutputRepository;
import com.sun.star.report.ReportEngineMetaData;
import com.sun.star.report.ReportEngineParameterNames;
import com.sun.star.report.ReportJobFactory;

import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;

import org.pentaho.reporting.libraries.base.util.HashNMap;


public class PentahoReportEngineMetaData
        implements ReportEngineMetaData
{

    public static final String OPENDOCUMENT_TEXT = "application/vnd.oasis.opendocument.text";
    public static final String OPENDOCUMENT_SPREADSHEET = "application/vnd.oasis.opendocument.spreadsheet";
    public static final String OPENDOCUMENT_CHART = "application/vnd.oasis.opendocument.chart";
    public final static String CONTENT_TYPE = "content-type";
    public static final String DEBUG = "raw/text+xml";
    private final Set mandatoryParameters;
    private final Map parameterTypes;
    private final HashNMap enumerationValues;

    public PentahoReportEngineMetaData()
    {
        mandatoryParameters = new HashSet();
        mandatoryParameters.add(ReportEngineParameterNames.CONTENT_TYPE);
        mandatoryParameters.add(ReportEngineParameterNames.INPUT_NAME);
        mandatoryParameters.add(ReportEngineParameterNames.INPUT_REPOSITORY);
        mandatoryParameters.add(ReportEngineParameterNames.OUTPUT_NAME);
        mandatoryParameters.add(ReportEngineParameterNames.OUTPUT_REPOSITORY);
        mandatoryParameters.add(ReportEngineParameterNames.INPUT_DATASOURCE_FACTORY);
        mandatoryParameters.add(ReportEngineParameterNames.IMAGE_SERVICE);
        mandatoryParameters.add(ReportEngineParameterNames.INPUT_REPORTJOB_FACTORY);
        mandatoryParameters.add(ReportEngineParameterNames.INPUT_MASTER_COLUMNS);
        mandatoryParameters.add(ReportEngineParameterNames.INPUT_MASTER_VALUES);
        mandatoryParameters.add(ReportEngineParameterNames.INPUT_DETAIL_COLUMNS);
        mandatoryParameters.add(ReportEngineParameterNames.AUTHOR);
        mandatoryParameters.add(ReportEngineParameterNames.TITLE);
        mandatoryParameters.add(ReportEngineParameterNames.MAXROWS);


        parameterTypes = new HashMap();
        parameterTypes.put(ReportEngineParameterNames.CONTENT_TYPE, String.class);
        parameterTypes.put(ReportEngineParameterNames.INPUT_NAME, String.class);
        parameterTypes.put(ReportEngineParameterNames.OUTPUT_NAME, String.class);
        parameterTypes.put(ReportEngineParameterNames.INPUT_REPOSITORY, InputRepository.class);
        parameterTypes.put(ReportEngineParameterNames.OUTPUT_REPOSITORY, OutputRepository.class);
        parameterTypes.put(ReportEngineParameterNames.INPUT_DATASOURCE_FACTORY, DataSourceFactory.class);
        parameterTypes.put(ReportEngineParameterNames.IMAGE_SERVICE, ImageService.class);
        parameterTypes.put(ReportEngineParameterNames.INPUT_REPORTJOB_FACTORY, ReportJobFactory.class);
        parameterTypes.put(ReportEngineParameterNames.INPUT_MASTER_COLUMNS, List.class);
        parameterTypes.put(ReportEngineParameterNames.INPUT_MASTER_VALUES, List.class);
        parameterTypes.put(ReportEngineParameterNames.INPUT_DETAIL_COLUMNS, List.class);
        parameterTypes.put(ReportEngineParameterNames.AUTHOR, String.class);
        parameterTypes.put(ReportEngineParameterNames.TITLE, String.class);
        parameterTypes.put(ReportEngineParameterNames.MAXROWS, Integer.class);

        enumerationValues = new HashNMap();
        enumerationValues.add(CONTENT_TYPE,
                PentahoReportEngineMetaData.OPENDOCUMENT_TEXT);
        enumerationValues.add(CONTENT_TYPE,
                PentahoReportEngineMetaData.OPENDOCUMENT_SPREADSHEET);
        enumerationValues.add(CONTENT_TYPE,
                PentahoReportEngineMetaData.OPENDOCUMENT_CHART);
        enumerationValues.add(CONTENT_TYPE, PentahoReportEngineMetaData.DEBUG);
    }

    public Object[] getEnumerationValues(final String parameter)
    {
        return enumerationValues.toArray(parameter);
    }

    public Class getParameterType(final String parameter)
    {
        return (Class) parameterTypes.get(parameter);
    }

    public boolean isEnumeration(final String parameter)
    {
        return enumerationValues.containsKey(parameter);
    }

    /**
     * Checks, whether a certain output type is available. Feed the mime-type of the output
     * type in and you'll get a true or false back.
     *
     * @param mimeType
     * @return true, if the output type is supported; false otherwise.
     */
    public boolean isOutputSupported(final String mimeType)
    {
        return enumerationValues.containsValue(CONTENT_TYPE, mimeType.toLowerCase());
    }

    /**
     * Lists all supported output parameters for the given mime-type. This listing can be
     * used to build a generic user interface for configuring a certain output.
     *
     * @param mimeType
     * @return
     */
    public String[] getOutputParameters(final String mimeType)
    {
        return new String[0];
    }

    public boolean isMandatory(final String parameter)
    {
        return mandatoryParameters.contains(parameter);
    }
}