// (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.Common.Logging;

public class SpecialFolderPathConverter : PatternConverter
{
    protected override void Convert(TextWriter writer, object state)
    {
        if (string.IsNullOrEmpty(Option))
        {
            return;
        }

        try
        {
            var result = string.Empty;
            const string CMD_LINE = "CommandLine:";

            if (Option.StartsWith(CMD_LINE))
            {
                var args = Environment.CommandLine.Split(' ');
                for (var i = 0; i < args.Length - 1; i++)
                {
                    if (args[i].Contains(Option, StringComparison.InvariantCultureIgnoreCase))
                    {
                        result = args[i + 1];
                    }
                }
            }
            else
            {
                var repo = log4net.LogManager.GetRepository(Assembly.GetCallingAssembly());
                if (repo != null)
                {
                    var realKey = Option;
                    foreach (var key in repo.Properties.GetKeys())
                    {
                        if (Path.DirectorySeparatorChar == '/' && key == "UNIX:" + Option)
                        {
                            realKey = "UNIX:" + Option;
                        }

                        if (Path.DirectorySeparatorChar == '\\' && key == "WINDOWS:" + Option)
                        {
                            realKey = "WINDOWS:" + Option;
                        }
                    }

                    var val = repo.Properties[realKey];
                    if (val is PatternString patternString)
                    {
                        patternString.ActivateOptions();
                        patternString.Format(writer);
                    }
                    else if (val != null)
                    {
                        result = val.ToString();
                    }
                }
            }

            if (!string.IsNullOrEmpty(result))
            {
                result = result.Replace('/', Path.DirectorySeparatorChar).Replace('\\', Path.DirectorySeparatorChar);
                writer.Write(result);
            }
        }
        catch (Exception err)
        {
            LogLog.Error(GetType(), "Can not convert " + Option, err);
        }
    }
}