using System;
using System.Runtime.InteropServices;

namespace LibGPhoto2
{
	public enum CameraFileType
	{
		Preview,
		Normal,
		Raw,
		Audio,
		Exif
	}
	
	public class MimeTypes
	{
		[MarshalAs(UnmanagedType.LPTStr)] public static string AVI = "video/x-msvideo";
		[MarshalAs(UnmanagedType.LPTStr)] public static string BMP = "image/bmp";
		[MarshalAs(UnmanagedType.LPTStr)] public static string CRW = "image/x-canon-raw";
		[MarshalAs(UnmanagedType.LPTStr)] public static string JPEG = "image/jpeg";
		[MarshalAs(UnmanagedType.LPTStr)] public static string PGM = "image/x-portable-graymap";
		[MarshalAs(UnmanagedType.LPTStr)] public static string PNG = "image/png";
		[MarshalAs(UnmanagedType.LPTStr)] public static string PPM = "image-x-portable-pixmap";
		[MarshalAs(UnmanagedType.LPTStr)] public static string QUICKTIME = "video/quicktime";
		[MarshalAs(UnmanagedType.LPTStr)] public static string RAW = "image/x-raw";
		[MarshalAs(UnmanagedType.LPTStr)] public static string TIFF = "image/tiff";
		[MarshalAs(UnmanagedType.LPTStr)] public static string UNKNOWN = "application/octet-stream";
		[MarshalAs(UnmanagedType.LPTStr)] public static string WAV = "audio/wav";
	}

	public class CameraFile : Object 
	{
		[DllImport ("libgphoto2.so")]
		internal static extern ErrorCode gp_file_new (out IntPtr file);

		public CameraFile()
		{
			IntPtr native;

			Error.CheckError (gp_file_new (out native));

			this.handle = new HandleRef (this, native);
		}

		[DllImport ("libgphoto2.so")]
		internal static extern ErrorCode gp_file_unref (HandleRef file);

		protected override void Cleanup () {
			gp_file_unref (this.Handle);
		}
		
		[DllImport ("libgphoto2.so")]
		internal static extern ErrorCode gp_file_append (HandleRef file, byte[] data, ulong size);

		public void Append (byte[] data)
		{
			Error.CheckError (gp_file_append (this.Handle, data, (ulong)data.Length));
		}
		
		[DllImport ("libgphoto2.so")]
		internal static extern ErrorCode gp_file_open (HandleRef file, string filename);

		public void Open (string filename)
		{
			Error.CheckError (gp_file_open (this.Handle, filename));
		}

		[DllImport ("libgphoto2.so")]
		internal static extern ErrorCode gp_file_save (HandleRef file, string filename);

		public void Save (string filename)
		{
			Error.CheckError (gp_file_save (this.Handle, filename));
		}
		
		[DllImport ("libgphoto2.so")]
		internal static extern ErrorCode gp_file_clean (HandleRef file);

		public void Clean (string filename)
		{
			Error.CheckError (gp_file_clean (this.Handle));
		}

		[DllImport ("libgphoto2.so")]
		internal static extern ErrorCode gp_file_get_name (HandleRef file, out string name);

		public string GetName ()
		{
			string name;
			
			Error.CheckError (gp_file_get_name (this.Handle, out name));

			return name;
		}
		

		[DllImport ("libgphoto2.so")]
		internal static extern ErrorCode gp_file_set_name (HandleRef file, string name);

		public void SetName (string name)
		{
			Error.CheckError (gp_file_set_name (this.Handle, name));
		}

		[DllImport ("libgphoto2.so")]
		internal static extern ErrorCode gp_file_get_type (HandleRef file, out CameraFileType type);

		public CameraFileType GetFileType ()
		{
			CameraFileType type;

			Error.CheckError (gp_file_get_type (this.Handle, out type));

			return type;
		}
		

		[DllImport ("libgphoto2.so")]
		internal static extern ErrorCode gp_file_set_type (HandleRef file, CameraFileType type);

		public void SetFileType (CameraFileType type)
		{
			Error.CheckError (gp_file_set_type (this.Handle, type));
		}
		
		[DllImport ("libgphoto2.so")]
		internal static extern ErrorCode gp_file_get_mime_type (HandleRef file, out string mime_type);

		public string GetMimeType ()
		{
			string mime;
			
			Error.CheckError (gp_file_get_mime_type (this.Handle, out mime));

			return mime;
		}
		

		[DllImport ("libgphoto2.so")]
		internal static extern ErrorCode gp_file_set_mime_type (HandleRef file, string mime_type);

		public void SetMimeType (string mime_type)
		{
			Error.CheckError (gp_file_set_mime_type (this.Handle, mime_type));
		}
		
		[DllImport ("libgphoto2.so")]
		internal static extern ErrorCode gp_file_detect_mime_type (HandleRef file);

		public void DetectMimeType ()
		{
			Error.CheckError (gp_file_detect_mime_type  (this.Handle));
		}
		
		
		[DllImport ("libgphoto2.so")]
		internal static extern ErrorCode gp_file_adjust_name_for_mime_type (HandleRef file);

		public void AdjustNameForMimeType ()
		{
			Error.CheckError (gp_file_adjust_name_for_mime_type (this.Handle));
		}
		
		[DllImport ("libgphoto2.so")]
		internal static extern ErrorCode gp_file_convert (HandleRef file, [MarshalAs(UnmanagedType.LPTStr)] string mime_type);

		public void Convert (string mime_type)
		{
			Error.CheckError (CameraFile.gp_file_convert (this.Handle, mime_type));
		}
		
		[DllImport ("libgphoto2.so")]
		internal static extern ErrorCode gp_file_copy (HandleRef destination, HandleRef source);

		public void Copy (CameraFile source)
		{
			Error.CheckError (gp_file_copy (this.Handle, source.Handle));
		}
		
		//[DllImport ("libgphoto2.so")]
		//internal static extern ErrorCode gp_file_set_color_table (HandleRef file, byte *red_table, int red_size, byte *green_table, int green_size, byte *blue_table, int blue_size);

		[DllImport ("libgphoto2.so")]
		internal static extern ErrorCode gp_file_set_header (HandleRef file, [MarshalAs(UnmanagedType.LPTStr)] byte[] header);

		public void SetHeader (byte[] header)
		{
			Error.CheckError (gp_file_set_header(this.Handle, header));
		}
		
		[DllImport ("libgphoto2.so")]
		internal static extern ErrorCode gp_file_set_width_and_height (HandleRef file, int width, int height);

		public void SetWidthHeight (int width, int height)
		{
			Error.CheckError (gp_file_set_width_and_height(this.Handle, width, height));
		}
		
		[DllImport ("libgphoto2.so")]
		internal static extern ErrorCode gp_file_set_data_and_size (HandleRef file, byte[] data, ulong size);

		public void SetDataAndSize (byte[] data)
		{
			Error.CheckError (gp_file_set_data_and_size (this.Handle, data, (ulong)data.Length));
		}
		
		[DllImport ("libgphoto2.so")]
		internal static extern ErrorCode gp_file_get_data_and_size (HandleRef file, out IntPtr data, out ulong size);

		public byte[] GetDataAndSize ()
		{
			ulong size;
			byte[] data;
			unsafe
			{
				IntPtr data_addr = IntPtr.Zero;
				Error.CheckError (gp_file_get_data_and_size (this.Handle, out data_addr, out size));
				data = new byte[size];
				if (data_addr != IntPtr.Zero && size > 0)
					Marshal.Copy(data_addr, data, 0, (int)size);
			}
			
			return data;
		}
	}
}