// Copyright (C) Stichting Deltares 2016. All rights preserved.
//
// This file is part of Ringtoets.
//
// Ringtoets is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// 
// This program 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.
//
// All names, logos, and references to "Deltares" are registered trademarks of 
// Stichting Deltares and remain full property of Stichting Deltares at all times. 
// All rights preserved.

using System;
using System.IO;
using Core.Common.Utils.Builders;
using Core.Common.Utils.Properties;

namespace Core.Common.Utils
{
    /// <summary>
    /// Class with reusable File related utility methods.
    /// </summary>
    public static class FileUtils
    {
        /// <summary>
        /// Validates the file path.
        /// </summary>
        /// <param name="path">The file path to be validated.</param>
        /// <exception cref="System.ArgumentException"><paramref name="path"/> is invalid.</exception>
        public static void ValidateFilePath(string path)
        {
            if (String.IsNullOrWhiteSpace(path))
            {
                var message = new FileReaderErrorMessageBuilder(path).Build(Resources.Error_Path_must_be_specified);
                throw new ArgumentException(message);
            }

            string name;
            try
            {
                name = Path.GetFileName(path);
            }
            catch (ArgumentException e)
            {
                var message = new FileReaderErrorMessageBuilder(path)
                    .Build(String.Format(Resources.Error_Path_cannot_contain_Characters_0_,
                                         String.Join(", ", Path.GetInvalidFileNameChars())));
                throw new ArgumentException(message, e);
            }
            if (String.Empty == name)
            {
                var message = new FileReaderErrorMessageBuilder(path).Build(Resources.Error_Path_must_not_point_to_folder);
                throw new ArgumentException(message);
            }
        }
    }
}