/*
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
*/
using System;
using System.Text;

using log4net.Util;
using log4net.Core;

namespace log4net.Layout.Pattern
{
  /// <summary>
  /// Writes the <see cref="LocationInfo.StackFrames"/> to the output writer, using format:
  /// type3.MethodCall3(type param,...) > type2.MethodCall2(type param,...) > type1.MethodCall1(type param,...)
  /// </summary>
  /// <author>Adam Davies</author>
  internal sealed class StackTraceDetailPatternConverter : StackTracePatternConverter
  {
    internal override string GetMethodInformation(MethodItem method)
    {
      string returnValue = "";

      try
      {
        string param = "";
        string[] names = method.Parameters;
        StringBuilder sb = new StringBuilder();
        if (names is not null && names.GetUpperBound(0) > 0)
        {
          for (int i = 0; i <= names.GetUpperBound(0); i++)
          {
            sb.AppendFormat("{0}, ", names[i]);
          }
        }

        if (sb.Length > 0)
        {
          sb.Remove(sb.Length - 2, 2);
          param = sb.ToString();
        }

        returnValue = base.GetMethodInformation(method) + "(" + param + ")";
      }
      catch (Exception ex)
      {
        LogLog.Error(declaringType, "An exception ocurred while retreiving method information.", ex);
      }

      return returnValue;
    }

    #region Private Static Fields

    /// <summary>
    /// The fully qualified type of the StackTraceDetailPatternConverter class.
    /// </summary>
    /// <remarks>
    /// Used by the internal logger to record the Type of the
    /// log message.
    /// </remarks>
    private static readonly Type declaringType = typeof(StackTracePatternConverter);

    #endregion Private Static Fields
  }
}