/*
 *
 * (c) Copyright Ascensio System Limited 2010-2020
 *
 * This program is freeware. You can redistribute it and/or modify it under the terms of the GNU 
 * General Public License (GPL) version 3 as published by the Free Software Foundation (https://www.gnu.org/copyleft/gpl.html). 
 * In accordance with Section 7(a) of the GNU GPL its Section 15 shall be amended to the effect that 
 * Ascensio System SIA expressly excludes the warranty of non-infringement of any third-party rights.
 *
 * THIS PROGRAM IS DISTRIBUTED WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY OR
 * FITNESS FOR A PARTICULAR PURPOSE. For more details, see GNU GPL at https://www.gnu.org/copyleft/gpl.html
 *
 * You can contact Ascensio System SIA by email at sales@onlyoffice.com
 *
 * The interactive user interfaces in modified source and object code versions of ONLYOFFICE must display 
 * Appropriate Legal Notices, as required under Section 5 of the GNU GPL version 3.
 *
 * Pursuant to Section 7 § 3(b) of the GNU GPL you must retain the original ONLYOFFICE logo which contains 
 * relevant author attributions when distributing the software. If the display of the logo in its graphic 
 * form is not reasonably feasible for technical reasons, you must include the words "Powered by ONLYOFFICE" 
 * in every copy of the program you distribute. 
 * Pursuant to Section 7 § 3(e) we decline to grant you any rights under trademark law for use of our trademarks.
 *
*/


using System.Threading;
using System.Threading.Tasks;

using ASC.Common;
using ASC.Common.Utils;
using ASC.Data.Backup.Listerners;
using ASC.Web.Studio.Core.Notify;

using Microsoft.Extensions.Hosting;

namespace ASC.Data.Backup.Service
{
    [Singletone]
    internal class BackupServiceLauncher : IHostedService
    {
        private BackupCleanerService CleanerService { get; set; }
        private BackupSchedulerService SchedulerService { get; set; }
        private BackupWorker BackupWorker { get; set; }
        private ConfigurationExtension Configuration { get; set; }
        private BackupListener BackupListener { get; set; }
        public NotifyConfiguration NotifyConfiguration { get; }

        public BackupServiceLauncher(
            BackupCleanerService cleanerService,
            BackupSchedulerService schedulerService,
            BackupWorker backupWorker,
            ConfigurationExtension configuration,
            BackupListener backupListener,
            NotifyConfiguration notifyConfiguration)
        {
            CleanerService = cleanerService;
            SchedulerService = schedulerService;
            BackupWorker = backupWorker;
            Configuration = configuration;
            BackupListener = backupListener;
            NotifyConfiguration = notifyConfiguration;
        }

        public Task StartAsync(CancellationToken cancellationToken)
        {
            NotifyConfiguration.Configure();

            var settings = Configuration.GetSetting<BackupSettings>("backup");

            BackupWorker.Start(settings);
            BackupListener.Start();

            CleanerService.Period = settings.Cleaner.Period;
            CleanerService.Start();

            SchedulerService.Period = settings.Scheduler.Period;
            SchedulerService.Start();

            return Task.CompletedTask;
        }

        public Task StopAsync(CancellationToken cancellationToken)
        {
            BackupWorker.Stop();
            BackupListener.Stop();
            if (CleanerService != null)
            {
                CleanerService.Stop();
                CleanerService = null;
            }
            if (SchedulerService != null)
            {
                SchedulerService.Stop();
                SchedulerService = null;
            }
            return Task.CompletedTask;
        }
    }
}