/*
 * Copyright (C) 2021 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;

import java.io.File;
import java.io.IOException;
import java.nio.charset.StandardCharsets;

import org.apache.commons.io.FileUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import fr.devinsy.statoolinfos.HtmlizerContext;
import fr.devinsy.statoolinfos.core.Federation;
import fr.devinsy.statoolinfos.core.StatoolInfosException;
import fr.devinsy.statoolinfos.io.CSVFile;
import fr.devinsy.statoolinfos.io.JSONFile;
import fr.devinsy.statoolinfos.io.ODSFile;
import fr.devinsy.statoolinfos.uptime.ServiceUptimes;
import fr.devinsy.statoolinfos.uptime.ServiceUptimesFile;
import fr.devinsy.xidyn.XidynException;
import fr.devinsy.xidyn.presenters.PresenterUtils;

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

    /**
     * Builds the.
     *
     * @throws StatoolInfosException
     *             the statool infos exception
     * @throws IOException
     *             Signals that an I/O exception has occurred.
     */
    public static void build()
    {
        Federation federation = HtmlizerContext.instance().getFederation();
        File htmlizeDirectory = HtmlizerContext.instance().getHtmlizeDirectory();

        //
        try
        {
            logger.info("EXPORTS CSV.");
            CSVFile.save(new File(htmlizeDirectory, "organizations.csv"), federation.getOrganizations());
            CSVFile.save(new File(htmlizeDirectory, "services.csv"), federation.getServicesAll());
        }
        catch (IOException exception)
        {
            logger.error("Error during CSV export: " + exception.getMessage(), exception);
        }

        //
        try
        {
            logger.info("EXPORTS JSON.");
            JSONFile.save(new File(htmlizeDirectory, "federation.json"), federation);
            JSONFile.save(new File(htmlizeDirectory, "organizations.json"), federation.getOrganizations());
            JSONFile.save(new File(htmlizeDirectory, "services.json"), federation.getServicesAll());
        }
        catch (IOException exception)
        {
            logger.error("Error during JSON export: " + exception.getMessage(), exception);
        }

        //
        try
        {
            logger.info("EXPORTS ODS.");
            ODSFile.save(new File(htmlizeDirectory, "organizations.ods"), federation.getOrganizations());
            ODSFile.save(new File(htmlizeDirectory, "services.ods"), federation.getServicesAll());
        }
        catch (Exception exception)
        {
            logger.error("Error during ODS export: " + exception.getMessage(), exception);
        }

        //
        try
        {
            logger.info("EXPORTS SERVICE UPTIME JOURNAL.");
            ServiceUptimes uptimes = ServiceUptimes.of(federation.getServicesAll(), HtmlizerContext.instance().getUptimeJournal());
            ServiceUptimesFile.saveCSV(new File(htmlizeDirectory, "serviceUptimeJournal.csv"), uptimes);
            ServiceUptimesFile.saveODS(new File(htmlizeDirectory, "serviceUptimeJournal.ods"), uptimes);
        }
        catch (Exception exception)
        {
            logger.error("Error during Uptime export: " + exception.getMessage(), exception);
        }

        //
        try
        {
            String page = htmlize();
            FileUtils.write(new File(htmlizeDirectory, "exports.xhtml"), page, StandardCharsets.UTF_8);
        }
        catch (StatoolInfosException | IOException exception)
        {
            logger.error("Error building export page: " + exception.getMessage(), exception);
        }
    }

    /**
     * Htmlize.
     *
     * @return the string
     * @throws StatoolInfosException
     *             the statool infos exception
     */
    public static String htmlize() throws StatoolInfosException
    {
        String result;

        try
        {
            logger.info("PAGE EXPORTS.");

            String content = PresenterUtils.dynamize("/fr/devinsy/statoolinfos/htmlize/exports.xhtml", null).toString();

            BreadcrumbTrail trail = new BreadcrumbTrail();
            result = WebCharterView.build(content, trail);
        }
        catch (XidynException exception)
        {
            throw new StatoolInfosException("Error building federation page: " + exception.getMessage(), exception);
        }

        //
        return result;
    }
}