// (c) Copyright Ascensio System SIA 2010-2022
//
// This program is a free software product.
// You can redistribute it and/or modify it under the terms
// of the GNU Affero General Public License (AGPL) version 3 as published by the Free Software
// Foundation. In accordance with Section 7(a) of the GNU AGPL 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 details, see
// the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
//
// You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia, EU, LV-1021.
//
// The  interactive user interfaces in modified source and object code versions of the Program must
// display Appropriate Legal Notices, as required under Section 5 of the GNU AGPL version 3.
//
// Pursuant to Section 7(b) of the License you must retain the original Product logo when
// distributing the program. Pursuant to Section 7(e) we decline to grant you any rights under
// trademark law for use of our trademarks.
//
// All the Product's GUI elements, including illustrations and icon sets, as well as technical writing
// content are licensed under the terms of the Creative Commons Attribution-ShareAlike 4.0
// International. See the License terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode

using ASC.EventBus.Exceptions;

namespace ASC.Data.Backup.IntegrationEvents.EventHandling;

[Scope]
public class BackupRequestIntegrationEventHandler : IIntegrationEventHandler<BackupRequestIntegrationEvent>
{
    private readonly BackupAjaxHandler _backupAjaxHandler;
    private readonly ILog _logger;
    private readonly TenantManager _tenantManager;
    private readonly SecurityContext _securityContext;
    private readonly AuthManager _authManager;
    private readonly BackupWorker _backupWorker;

    public BackupRequestIntegrationEventHandler(
        BackupAjaxHandler backupAjaxHandler,
        IOptionsMonitor<ILog> logger,
        TenantManager tenantManager,
        SecurityContext securityContext,
        AuthManager authManager,
        BackupWorker backupWorker)
    {
        _tenantManager = tenantManager;
        _authManager = authManager;
        _securityContext = securityContext;
        _backupAjaxHandler = backupAjaxHandler;
        _logger = logger.CurrentValue;
        _backupWorker = backupWorker;
    }

    public async Task Handle(BackupRequestIntegrationEvent @event)
    {
        _logger.LogInformation("----- Handling integration event: {IntegrationEventId} at {AppName} - ({@IntegrationEvent})", @event.Id, Program.AppName, @event);

        if (!@event.Redelivered)
        {
            if (_backupWorker.IsInstanceTooBusy())
            {
                throw new IntegrationEventRejectExeption(@event.Id);
            }
        }

        _tenantManager.SetCurrentTenant(@event.TenantId);
        _securityContext.AuthenticateMeWithoutCookie(_authManager.GetAccountByID(@event.TenantId, @event.CreateBy));

        if (@event.IsScheduled)
        {
            _backupWorker.StartScheduledBackup(new EF.Model.BackupSchedule
            {
                BackupMail = @event.BackupMail,
                BackupsStored = @event.BackupsStored,
                StorageBasePath = @event.StorageBasePath,
                StorageParams = JsonConvert.SerializeObject(@event.StorageParams),
                StorageType = @event.StorageType,
                TenantId = @event.TenantId
            });
        }
        else
        {
            _backupAjaxHandler.StartBackup(@event.StorageType, @event.StorageParams, @event.BackupMail);
        }

        await Task.CompletedTask;
    }
}