using System;
using System.Runtime.InteropServices;

namespace eKasa.Library {
	public class WinShortcut {
		private static readonly Type m_type = Type.GetTypeFromProgID("WScript.Shell");
		private static readonly object m_shell = Activator.CreateInstance(m_type);

		[ComImport, TypeLibType((short)0x1040), Guid("F935DC23-1CF0-11D0-ADB9-00C04FD58A0B")]
		private interface IWshShortcut {
			[DispId(0)]
			string FullName { [return: MarshalAs(UnmanagedType.BStr)] [DispId(0)] get; }
			[DispId(0x3e8)]
			string Arguments { [return: MarshalAs(UnmanagedType.BStr)] [DispId(0x3e8)] get; [param: In, MarshalAs(UnmanagedType.BStr)] [DispId(0x3e8)] set; }
			[DispId(0x3e9)]
			string Description { [return: MarshalAs(UnmanagedType.BStr)] [DispId(0x3e9)] get; [param: In, MarshalAs(UnmanagedType.BStr)] [DispId(0x3e9)] set; }
			[DispId(0x3ea)]
			string Hotkey { [return: MarshalAs(UnmanagedType.BStr)] [DispId(0x3ea)] get; [param: In, MarshalAs(UnmanagedType.BStr)] [DispId(0x3ea)] set; }
			[DispId(0x3eb)]
			string IconLocation { [return: MarshalAs(UnmanagedType.BStr)] [DispId(0x3eb)] get; [param: In, MarshalAs(UnmanagedType.BStr)] [DispId(0x3eb)] set; }
			[DispId(0x3ec)]
			string RelativePath { [param: In, MarshalAs(UnmanagedType.BStr)] [DispId(0x3ec)] set; }
			[DispId(0x3ed)]
			string TargetPath { [return: MarshalAs(UnmanagedType.BStr)] [DispId(0x3ed)] get; [param: In, MarshalAs(UnmanagedType.BStr)] [DispId(0x3ed)] set; }
			[DispId(0x3ee)]
			int WindowStyle { [DispId(0x3ee)] get; [param: In] [DispId(0x3ee)] set; }
			[DispId(0x3ef)]
			string WorkingDirectory { [return: MarshalAs(UnmanagedType.BStr)] [DispId(0x3ef)] get; [param: In, MarshalAs(UnmanagedType.BStr)] [DispId(0x3ef)] set; }
			[TypeLibFunc((short)0x40), DispId(0x7d0)]
			void Load([In, MarshalAs(UnmanagedType.BStr)] string PathLink);
			[DispId(0x7d1)]
			void Save();
		}

		public static void Create(string fileName, string targetPath, string arguments, string workingDirectory, string description, string hotkey, string iconPath) {
			IWshShortcut shortcut = (IWshShortcut)m_type.InvokeMember("CreateShortcut", System.Reflection.BindingFlags.InvokeMethod, null, m_shell, new object[] { fileName });
			shortcut.Description = description;
			shortcut.Hotkey = hotkey;
			shortcut.TargetPath = targetPath;
			shortcut.WorkingDirectory = workingDirectory;
			shortcut.Arguments = arguments;
			if (!string.IsNullOrEmpty(iconPath))
				shortcut.IconLocation = iconPath;
			shortcut.Save();
		}
	}
}
