#nullable disable

using System;
using System.Runtime.InteropServices;
using System.Text;

namespace BizHawk.Common
{
	public static class ShellLinkImports
	{
		[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
		public struct WIN32_FIND_DATAW
		{
			public uint dwFileAttributes;
			public long ftCreationTime;
			public long ftLastAccessTime;
			public long ftLastWriteTime;
			public uint nFileSizeHigh;
			public uint nFileSizeLow;
			public uint dwReserved0;
			public uint dwReserved1;
			[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 260)] public string cFileName;
			[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 14)] public string cAlternateFileName;
		}

		[Flags]
		public enum SLGP_FLAGS {}

		[Flags]
		public enum SLR_FLAGS {}

		/// <summary>The IShellLink interface allows Shell links to be created, modified, and resolved</summary>
		[ComImport, InterfaceType(ComInterfaceType.InterfaceIsIUnknown), Guid("000214F9-0000-0000-C000-000000000046")]
		public interface IShellLinkW
		{
			/// <summary>Retrieves the path and file name of a Shell link object</summary>
			void GetPath([Out, MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszFile, int cchMaxPath, out WIN32_FIND_DATAW pfd, SLGP_FLAGS fFlags);
			/// <summary>Retrieves the list of item identifiers for a Shell link object</summary>
			void GetIDList(out IntPtr ppidl);
			/// <summary>Sets the pointer to an item identifier list (PIDL) for a Shell link object.</summary>
			void SetIDList(IntPtr pidl);
			/// <summary>Retrieves the description string for a Shell link object</summary>
			void GetDescription([Out, MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszName, int cchMaxName);
			/// <summary>Sets the description for a Shell link object. The description can be any application-defined string</summary>
			void SetDescription([MarshalAs(UnmanagedType.LPWStr)] string pszName);
			/// <summary>Retrieves the name of the working directory for a Shell link object</summary>
			void GetWorkingDirectory([Out, MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszDir, int cchMaxPath);
			/// <summary>Sets the name of the working directory for a Shell link object</summary>
			void SetWorkingDirectory([MarshalAs(UnmanagedType.LPWStr)] string pszDir);
			/// <summary>Retrieves the command-line arguments associated with a Shell link object</summary>
			void GetArguments([Out, MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszArgs, int cchMaxPath);
			/// <summary>Sets the command-line arguments for a Shell link object</summary>
			void SetArguments([MarshalAs(UnmanagedType.LPWStr)] string pszArgs);
			/// <summary>Retrieves the hot key for a Shell link object</summary>
			void GetHotkey(out short pwHotkey);
			/// <summary>Sets a hot key for a Shell link object</summary>
			void SetHotkey(short wHotkey);
			/// <summary>Retrieves the show command for a Shell link object</summary>
			void GetShowCmd(out int piShowCmd);
			/// <summary>Sets the show command for a Shell link object. The show command sets the initial show state of the window.</summary>
			void SetShowCmd(int iShowCmd);
			/// <summary>Retrieves the location (path and index) of the icon for a Shell link object</summary>
			void GetIconLocation([Out, MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszIconPath, int cchIconPath, out int piIcon);
			/// <summary>Sets the location (path and index) of the icon for a Shell link object</summary>
			void SetIconLocation([MarshalAs(UnmanagedType.LPWStr)] string pszIconPath, int iIcon);
			/// <summary>Sets the relative path to the Shell link object</summary>
			void SetRelativePath([MarshalAs(UnmanagedType.LPWStr)] string pszPathRel, int dwReserved);
			/// <summary>Attempts to find the target of a Shell link, even if it has been moved or renamed</summary>
			void Resolve(IntPtr hwnd, SLR_FLAGS fFlags);
			/// <summary>Sets the path and file name of a Shell link object</summary>
			void SetPath([MarshalAs(UnmanagedType.LPWStr)] string pszFile);
		}

		[ComImport, Guid("0000010c-0000-0000-c000-000000000046"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
		public interface IPersist
		{
			[PreserveSig]
			void GetClassID(out Guid pClassID);
		}

		[ComImport, Guid("0000010b-0000-0000-C000-000000000046"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
		public interface IPersistFile : IPersist
		{
			new void GetClassID(out Guid pClassID);

			[PreserveSig]
			int IsDirty();

			[PreserveSig]
			void Load([In, MarshalAs(UnmanagedType.LPWStr)]string pszFileName, uint dwMode);

			[PreserveSig]
			void Save([In, MarshalAs(UnmanagedType.LPWStr)] string pszFileName, [In, MarshalAs(UnmanagedType.Bool)] bool fRemember);

			[PreserveSig]
			void SaveCompleted([In, MarshalAs(UnmanagedType.LPWStr)] string pszFileName);

			[PreserveSig]
			void GetCurFile([In, MarshalAs(UnmanagedType.LPWStr)] string ppszFileName);
		}

		/// <remarks>CLSID_ShellLink from ShlGuid.h</remarks>
		[ComImport, Guid("00021401-0000-0000-C000-000000000046")]
		public class ShellLink /* : IPersistFile, IShellLinkW */ {}
	}
}