// Copyright Epic Games, Inc. All Rights Reserved.
// This file is automatically generated. Changes to this file may be overwritten.

namespace Epic.OnlineServices.PlayerDataStorage
{
	/// <summary>
	/// Input data for the <see cref="PlayerDataStorageInterface.ReadFile" /> function
	/// </summary>
	public class ReadFileOptions
	{
		/// <summary>
		/// The Product User ID of the local user who is reading the requested file
		/// </summary>
		public ProductUserId LocalUserId { get; set; }

		/// <summary>
		/// The file name to read; this file must already exist
		/// </summary>
		public string Filename { get; set; }

		/// <summary>
		/// The maximum amount of data in bytes should be available to read in a single <see cref="OnReadFileDataCallback" /> call
		/// </summary>
		public uint ReadChunkLengthBytes { get; set; }

		/// <summary>
		/// Callback function that handles data as it comes in, and can stop the transfer early
		/// </summary>
		public OnReadFileDataCallback ReadFileDataCallback { get; set; }

		/// <summary>
		/// Optional callback function to be informed of download progress, if the file is not already locally cached; if provided, this will be called at least once before completion if the request is successfully started
		/// </summary>
		public OnFileTransferProgressCallback FileTransferProgressCallback { get; set; }
	}

	[System.Runtime.InteropServices.StructLayout(System.Runtime.InteropServices.LayoutKind.Sequential, Pack = 8)]
	internal struct ReadFileOptionsInternal : ISettable, System.IDisposable
	{
		private int m_ApiVersion;
		private System.IntPtr m_LocalUserId;
		private System.IntPtr m_Filename;
		private uint m_ReadChunkLengthBytes;
		private System.IntPtr m_ReadFileDataCallback;
		private System.IntPtr m_FileTransferProgressCallback;

		public ProductUserId LocalUserId
		{
			set
			{
				Helper.TryMarshalSet(ref m_LocalUserId, value);
			}
		}

		public string Filename
		{
			set
			{
				Helper.TryMarshalSet(ref m_Filename, value);
			}
		}

		public uint ReadChunkLengthBytes
		{
			set
			{
				m_ReadChunkLengthBytes = value;
			}
		}

		private static OnReadFileDataCallbackInternal s_ReadFileDataCallback;
		public static OnReadFileDataCallbackInternal ReadFileDataCallback
		{
			get
			{
				if (s_ReadFileDataCallback == null)
				{
					s_ReadFileDataCallback = new OnReadFileDataCallbackInternal(PlayerDataStorageInterface.OnReadFileDataCallbackInternalImplementation);
				}

				return s_ReadFileDataCallback;
			}
		}

		private static OnFileTransferProgressCallbackInternal s_FileTransferProgressCallback;
		public static OnFileTransferProgressCallbackInternal FileTransferProgressCallback
		{
			get
			{
				if (s_FileTransferProgressCallback == null)
				{
					s_FileTransferProgressCallback = new OnFileTransferProgressCallbackInternal(PlayerDataStorageInterface.OnFileTransferProgressCallbackInternalImplementation);
				}

				return s_FileTransferProgressCallback;
			}
		}

		public void Set(ReadFileOptions other)
		{
			if (other != null)
			{
				m_ApiVersion = PlayerDataStorageInterface.ReadfileoptionsApiLatest;
				LocalUserId = other.LocalUserId;
				Filename = other.Filename;
				ReadChunkLengthBytes = other.ReadChunkLengthBytes;
				m_ReadFileDataCallback = other.ReadFileDataCallback != null ? System.Runtime.InteropServices.Marshal.GetFunctionPointerForDelegate(ReadFileDataCallback) : System.IntPtr.Zero;
				m_FileTransferProgressCallback = other.FileTransferProgressCallback != null ? System.Runtime.InteropServices.Marshal.GetFunctionPointerForDelegate(FileTransferProgressCallback) : System.IntPtr.Zero;
			}
		}

		public void Set(object other)
		{
			Set(other as ReadFileOptions);
		}

		public void Dispose()
		{
			Helper.TryMarshalDispose(ref m_LocalUserId);
			Helper.TryMarshalDispose(ref m_Filename);
			Helper.TryMarshalDispose(ref m_ReadFileDataCallback);
			Helper.TryMarshalDispose(ref m_FileTransferProgressCallback);
		}
	}
}