/*
 * Copyright (C) 2020-2021 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.catgenerator.core.CatGenerator;
import fr.devinsy.statoolinfos.HtmlizerContext;
import fr.devinsy.statoolinfos.core.Federation;
import fr.devinsy.statoolinfos.core.StatoolInfosException;
import fr.devinsy.statoolinfos.crawl.CrawlCache;
import fr.devinsy.statoolinfos.htmlize.FederationMetricMenuView.PeriodMenu;
import fr.devinsy.statoolinfos.htmlize.FederationMetricMenuView.ViewMenu;

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

    /**
     * Builds the.
     *
     * @throws StatoolInfosException
     *             the statool infos exception
     * @throws IOException
     */
    public static void build() throws StatoolInfosException, IOException
    {
        Federation federation = HtmlizerContext.instance().getFederation();
        CrawlCache cache = HtmlizerContext.instance().getCache();
        File htmlizeDirectory = HtmlizerContext.instance().getHtmlizeDirectory();

        //
        logger.info("PAGE FEDERATION Htmlize federation logo.");
        htmlizeFederationLogo(federation, cache, htmlizeDirectory);

        //
        logger.info("PAGE FEDERATION Htmlize federation properties files.");
        FileUtils.copyFile(federation.getInputFile(), new File(htmlizeDirectory, federation.getTechnicalName() + ".properties"));

        logger.info("PAGE FEDERATION federation page: {}.", federation.getName());
        String page = FederationOrganizationsPage.htmlize(federation);
        FileUtils.write(new File(htmlizeDirectory, "index.xhtml"), page, StandardCharsets.UTF_8);

        //
        FederationOrganizationsPage.build();
        FederationServicesPage.build();
        FederationCrawlJournalPage.build();
        FederationPropertyCheckPage.build();
        FederationPropertyAlertPage.buildAll();
        FederationStatsPage.build();
        FederationUptimePage.build();

        //
        logger.info("Htmlize federation metric pages: {}.", federation.getName());
        for (ViewMenu view : ViewMenu.values())
        {
            for (PeriodMenu period : PeriodMenu.values())
            {
                if ((view != ViewMenu.YEARS) || (period == PeriodMenu.FULL))
                {
                    if (view != ViewMenu.DAYS)
                    {
                        FederationMetricSummaryPage.build(htmlizeDirectory, federation, view, period);
                        FederationMetricGenericPage.build(htmlizeDirectory, federation, view, period);
                        FederationMetricSpecificPage.build(htmlizeDirectory, federation, view, period);
                        FederationMetricWebPage.build(htmlizeDirectory, federation, view, period);
                    }
                }
            }
        }
    }

    /**
     * Htmlize federation logo.
     *
     * @param federation
     *            the federation
     * @param cache
     *            the cache
     * @param htmlizeDirectory
     *            the htmlize directory
     * @throws IOException
     *             Signals that an I/O exception has occurred.
     */
    private static void htmlizeFederationLogo(final Federation federation, final CrawlCache cache, final File htmlizeDirectory) throws IOException
    {
        logger.info("Htmlize federation logo.");

        File target = new File(htmlizeDirectory, federation.getLogoFileName());

        File logoFile = cache.restoreFile(federation.getLogoURL());
        if (logoFile == null)
        {
            logger.info("CatGeneratoring cat avatar: {}", target.getAbsoluteFile());
            CatGenerator.buildAvatarTo(federation.getTechnicalName(), target);
        }
        else
        {
            FileUtils.copyFile(logoFile, target);
        }
    }
}