// (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

namespace ASC.MessagingSystem.EF.Model;

[Singletone]
public class MessageTarget
{
    private IEnumerable<string> _items;
    private readonly ILogger _logger;
    private readonly ILoggerProvider _option;

    public MessageTarget(ILoggerProvider option)
    {
        _logger = option.CreateLogger("ASC.Messaging");
        _option = option;
    }

    public MessageTarget Create<T>(T value)
    {
        var res = new List<string>(1);
        if (value != null)
        {
            res.Add(value.ToString());
        }

        return new MessageTarget(_option)
        {
            _items = res
        };
    }

    public MessageTarget CreateFromGroupValues(IEnumerable<string> value)
    {
        var res = new MessageTarget(_option)
        {
            _items = new List<string>()
        };

        if (value != null)
        {
            res._items = value.Select(r => r.ToString()).ToList();
        }

        return res;
    }

    public MessageTarget Parse(string value)
    {
        if (string.IsNullOrEmpty(value))
        {
            return null;
        }

        var items = value.Split(',');

        if (items.Length == 0)
        {
            return null;
        }

        return new MessageTarget(_option)
        {
            _items = items
        };
    }
    public IEnumerable<string> GetItems() { return _items.ToList(); }
    public override string ToString()
    {
        return string.Join(",", _items);
    }
}