#region License
// Copyright (c) 2007 James Newton-King
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the "Software"), to deal in the Software without
// restriction, including without limitation the rights to use,
// copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following
// conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
#endregion

#if !(NET35 || NET20 || PORTABLE)
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.Dynamic;
using System.IO;
using System.Linq;
using System.Net;
using System.Reflection;
using System.Runtime.Serialization;
using System.Text;
using System.Threading.Tasks;
using Newtonsoft.Json.Converters;
using Newtonsoft.Json.Linq;
#if !NETFX_CORE
using NUnit.Framework;
#else
using Microsoft.VisualStudio.TestPlatform.UnitTestFramework;
using TestFixture = Microsoft.VisualStudio.TestPlatform.UnitTestFramework.TestClassAttribute;
using Test = Microsoft.VisualStudio.TestPlatform.UnitTestFramework.TestMethodAttribute;
#endif
using Newtonsoft.Json.Serialization;
using Newtonsoft.Json.Tests.Serialization;
using Newtonsoft.Json.Tests.TestObjects;
using Newtonsoft.Json.Utilities;
using System.Globalization;

namespace Newtonsoft.Json.Tests.Documentation
{
  [TestFixture]
  public class TraceWriterTests : TestFixtureBase
  {
    public class LogEventInfo
    {
      public LogLevel Level;
      public string Message;
      public Exception Exception;
    }

    public class LogLevel
    {
      public static LogLevel Info;
      public static LogLevel Trace;
      public static LogLevel Error;
      public static LogLevel Warn;
      public static LogLevel Off;
    }

    public class Logger
    {
      public void Log(LogEventInfo logEvent)
      { 
      }
    }

    public static class LogManager
    {
      public static Logger GetLogger(string className)
      {
        return new Logger();
      }
    }

    #region CustomTraceWriterExample
    public class NLogTraceWriter : ITraceWriter
    {
      private static readonly Logger Logger = LogManager.GetLogger("NLogTraceWriter");

      public TraceLevel LevelFilter
      {
        // trace all messages. nlog can handle filtering
        get { return TraceLevel.Verbose; }
      }

      public void Trace(TraceLevel level, string message, Exception ex)
      {
        LogEventInfo logEvent = new LogEventInfo
        {
          Message = message,
          Level = GetLogLevel(level),
          Exception = ex
        };

        // log Json.NET message to NLog
        Logger.Log(logEvent);
      }

      private LogLevel GetLogLevel(TraceLevel level)
      {
        switch (level)
        {
          case TraceLevel.Error:
            return LogLevel.Error;
          case TraceLevel.Warning:
            return LogLevel.Warn;
          case TraceLevel.Info:
            return LogLevel.Info;
          case TraceLevel.Off:
            return LogLevel.Off;
          default:
            return LogLevel.Trace;
        }
      }
    }
    #endregion

    [Test]
    public void MemoryTraceWriterTest()
    {
      #region MemoryTraceWriterExample
      Staff staff = new Staff();
      staff.Name = "Arnie Admin";
      staff.Roles = new List<string> { "Administrator" };
      staff.StartDate = DateTime.Now;

      ITraceWriter traceWriter = new MemoryTraceWriter();

      JsonConvert.SerializeObject(
        staff,
        new JsonSerializerSettings { TraceWriter = traceWriter, Converters = { new JavaScriptDateTimeConverter() } });

      Console.WriteLine(traceWriter);
      // 2012-11-11T12:08:42.761 Info Started serializing Newtonsoft.Json.Tests.Serialization.Staff. Path ''.
      // 2012-11-11T12:08:42.785 Info Started serializing System.DateTime with converter Newtonsoft.Json.Converters.JavaScriptDateTimeConverter. Path 'StartDate'.
      // 2012-11-11T12:08:42.791 Info Finished serializing System.DateTime with converter Newtonsoft.Json.Converters.JavaScriptDateTimeConverter. Path 'StartDate'.
      // 2012-11-11T12:08:42.797 Info Started serializing System.Collections.Generic.List`1[System.String]. Path 'Roles'.
      // 2012-11-11T12:08:42.798 Info Finished serializing System.Collections.Generic.List`1[System.String]. Path 'Roles'.
      // 2012-11-11T12:08:42.799 Info Finished serializing Newtonsoft.Json.Tests.Serialization.Staff. Path ''.
      #endregion

      MemoryTraceWriter memoryTraceWriter = (MemoryTraceWriter)traceWriter;

      Assert.AreEqual(743, memoryTraceWriter.ToString().Length);
      Assert.AreEqual(6, memoryTraceWriter.GetTraceMessages().Count());
    }
  }
}
#endif