#region References
using System;
using System.IO;
#endregion

namespace Server
{
	public static class Persistence
	{
		public static void Serialize(string path, Action<GenericWriter> serializer)
		{
			Serialize(new FileInfo(path), serializer);
		}

		public static void Serialize(FileInfo file, Action<GenericWriter> serializer)
		{
			file.Refresh();

			if (file.Directory != null && !file.Directory.Exists)
			{
				file.Directory.Create();
			}

			if (!file.Exists)
			{
				file.Create().Close();
			}
				
			file.Refresh();

			using (var fs = file.OpenWrite())
			{
				var writer = new BinaryFileWriter(fs, true);

				try
				{
					serializer(writer);
				}
				finally
				{
					writer.Flush();
					writer.Close();
				}
			}
		}

		public static void Deserialize(string path, Action<GenericReader> deserializer)
		{
			Deserialize(path, deserializer, true);
		}

		public static void Deserialize(FileInfo file, Action<GenericReader> deserializer)
		{
			Deserialize(file, deserializer, true);
		} 

		public static void Deserialize(string path, Action<GenericReader> deserializer, bool ensure)
		{
			Deserialize(new FileInfo(path), deserializer, ensure);
		}

		public static void Deserialize(FileInfo file, Action<GenericReader> deserializer, bool ensure)
		{
			file.Refresh();

			if (file.Directory != null && !file.Directory.Exists)
			{
				if (!ensure)
				{
					throw new DirectoryNotFoundException();
				}

				file.Directory.Create();
			}
			
			if (!file.Exists)
			{
				if (!ensure)
				{
					throw new FileNotFoundException
					{
						Source = file.FullName
					};
				}

				file.Create().Close();
			}
				
			file.Refresh();

            using (var fs = file.OpenRead())
            {
                var reader = new BinaryFileReader(new BinaryReader(fs));

                try
                {
                    deserializer(reader);
                }
                catch (EndOfStreamException eos)
                {
                    if (file.Length > 0)
                    {
                        throw new Exception(String.Format("[Persistance]: {0}", eos));
                    }
                }
                catch (Exception e)
                {
                    Utility.WriteConsoleColor(ConsoleColor.Red, "[Persistance]: An error was encountered while loading a saved object");

                    throw new Exception(String.Format("[Persistance]: {0}", e));
                }
                finally
                {
                    reader.Close();
                }
            }
		}
	}
}