// Copyright (C) Stichting Deltares 2019. All rights reserved.
//
// This file is part of the Dam Engine.
//
// The Dam Engine is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero 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 reserved.

using System;

namespace Deltares.DamEngine.TestHelpers
{
    /// <summary>
    /// Helper class for adapting xml in tests
    /// </summary>
    public class XmlAdapter
    {
        /// <summary>
        /// Changes the value in XML.
        /// </summary>
        /// <param name="input">The input.</param>
        /// <param name="key">The key.</param>
        /// <param name="value">The value.</param>
        /// <returns></returns>
        public static string ChangeValueInXml(string input, string key, string value)
        {
            string result = input;
            string searchString = key + "=\"";
            var startIndex = input.IndexOf(searchString, StringComparison.Ordinal);
            var length = searchString.Length;
            if (startIndex != -1)
            {
                // find next double quote
                var endIndex = input.Substring(startIndex + length).IndexOf("\"", StringComparison.Ordinal);
                string dirString = input.Substring(startIndex + length, endIndex);
                string pattern = searchString + dirString;
                string replacement = searchString + value;
                result = input.Replace(pattern, replacement);
            }
            return result;
        }
    }
}