/*
 * Copyright (C) 2020 Christian Pierre MOMON <christian@momon.org>
 * 
 * This file is part of StatoolInfos, simple service statistics tool.
 * 
 * StatoolInfos is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 * 
 * StatoolInfos is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License
 * along with StatoolInfos.  If not, see <http://www.gnu.org/licenses/>.
 */
package fr.devinsy.statoolinfos.htmlize.charts;

import java.io.IOException;

import org.apache.commons.codec.digest.DigestUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import fr.devinsy.statoolinfos.core.StatoolInfosException;
import fr.devinsy.strings.StringList;
import fr.devinsy.xidyn.utils.XidynUtils;

/**
 * The Class PieChartView.
 */
public class PieChartView
{
    private static Logger logger = LoggerFactory.getLogger(PieChartView.class);

    enum PieType
    {
        DOUGHNUT,
        PIE
    }

    /**
     * Builds the.
     *
     * @param pie
     *            the pie
     * @return the string
     * @throws StatoolInfosException
     *             the statool infos exception
     */
    public static String build(final PieChart pie) throws StatoolInfosException
    {
        String result;

        result = build(PieType.PIE, pie);

        //
        return result;
    }

    /**
     * Builds the.
     *
     * @param pie
     *            the pie
     * @return the string
     * @throws StatoolInfosException
     */
    public static String build(final PieType type, final PieChart pie) throws StatoolInfosException
    {
        String result;

        result = build(type, pie.getTitle(), pie.getLabels(), new StringList(pie.getValues()), pie.getColors());

        //
        return result;
    }

    /**
     * Builds the.
     *
     * @param title
     *            the title
     * @param description
     *            the description
     * @param labels
     *            the labels
     * @param values
     *            the values
     * @param color
     *            the color
     * @return the string
     * @throws StatoolInfosException
     *             the statool infos exception
     */
    public static String build(final PieType type, final String title, final StringList labels, final StringList values, final StringList colors) throws StatoolInfosException
    {
        String result;
        try
        {
            String source = XidynUtils.load(PieChartView.class.getResource("/fr/devinsy/statoolinfos/htmlize/charts/pieChartView.xhtml"));
            result = XidynUtils.extractBodyContent(source);

            result = result.replaceFirst("type: '.*'", "type: '" + type.toString().toLowerCase() + "'");
            result = result.replace("myChart", "myChart_" + DigestUtils.sha1Hex(title + "PieChart"));
            result = result.replaceFirst("data: \\[.*\\]", "data: " + ChabuUtils.toJSonNumbers(values));
            result = result.replaceFirst("backgroundColor: \\[.*\\]", "backgroundColor: " + ChabuUtils.toJSonStrings(colors));
            result = result.replaceFirst("text: '.*'", "text: '" + title.replace("'", "\\\\'") + "'");
            result = result.replaceFirst("labels: \\[.*\\]", "labels: " + ChabuUtils.toJSonStrings(labels));
        }
        catch (IOException exception)
        {
            throw new StatoolInfosException("Error building bar months chart view: " + exception.getMessage(), exception);
        }

        //
        return result;
    }
}