/*  Copyright (C) 2008-2016 Peter Palotas, Jeffrey Jangli, Alexandr Normuradov
 *  
 *  Permission is hereby granted, free of charge, to any person obtaining a copy 
 *  of this software and associated documentation files (the "Software"), to deal 
 *  in the Software without restriction, including without limitation the rights 
 *  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 
 *  copies of the Software, and to permit persons to whom the Software is 
 *  furnished to do so, subject to the following conditions:
 *  
 *  The above copyright notice and this permission notice shall be included in 
 *  all copies or substantial portions of the Software.
 *  
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
 *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
 *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 
 *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
 *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
 *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 
 *  THE SOFTWARE. 
 */
using System;
using System.Diagnostics.CodeAnalysis;
using System.Runtime.InteropServices;
using System.Security;
using System.Text;

namespace Alphaleonis.Win32.Filesystem
{
   internal static partial class NativeMethods
   {
      /// <summary>Retrieves the full path and file name of the specified file or directory.</summary>
      /// <returns>If the function fails for any other reason, the return value is zero. To get extended error information, call GetLastError.</returns>
      /// <remarks>The GetFullPathName function is not recommended for multithreaded applications or shared library code.</remarks>
      /// <remarks>Minimum supported client: Windows XP [desktop apps only]</remarks>
      /// <remarks>Minimum supported server: Windows Server 2003 [desktop apps only]</remarks>
      [SuppressMessage("Microsoft.Security", "CA5122:PInvokesShouldNotBeSafeCriticalFxCopRule")]
      [DllImport("kernel32.dll", SetLastError = true, CharSet = CharSet.Unicode, EntryPoint = "GetFullPathNameW"), SuppressUnmanagedCodeSecurity]
      [return: MarshalAs(UnmanagedType.U4)]
      internal static extern uint GetFullPathName([MarshalAs(UnmanagedType.LPWStr)] string lpFileName, [MarshalAs(UnmanagedType.U4)] uint nBufferLength, StringBuilder lpBuffer, IntPtr lpFilePart);

      /// <summary>Retrieves the full path and file name of the specified file or directory as a transacted operation.</summary>
      /// <returns>If the function fails for any other reason, the return value is zero. To get extended error information, call GetLastError.</returns>
      /// <remarks>Minimum supported client: Windows Vista [desktop apps only]</remarks>
      /// <remarks>Minimum supported server: Windows Server 2008 [desktop apps only]</remarks>
      [SuppressMessage("Microsoft.Security", "CA5122:PInvokesShouldNotBeSafeCriticalFxCopRule")]
      [DllImport("kernel32.dll", SetLastError = true, CharSet = CharSet.Unicode, EntryPoint = "GetFullPathNameTransactedW"), SuppressUnmanagedCodeSecurity]
      [return: MarshalAs(UnmanagedType.U4)]
      internal static extern uint GetFullPathNameTransacted([MarshalAs(UnmanagedType.LPWStr)] string lpFileName, [MarshalAs(UnmanagedType.U4)] uint nBufferLength, StringBuilder lpBuffer, IntPtr lpFilePart, SafeHandle hTransaction);

      /// <summary>Converts the specified path to its long form.</summary>
      /// <returns>
      /// If the function succeeds, the return value is nonzero.
      /// If the function fails, the return value is zero. To get extended error information, call GetLastError.
      /// </returns>
      /// <remarks>Minimum supported client: Windows XP [desktop apps only]</remarks>
      /// <remarks>Minimum supported server: Windows Server 2003 [desktop apps only]</remarks>
      [SuppressMessage("Microsoft.Security", "CA5122:PInvokesShouldNotBeSafeCriticalFxCopRule")]
      [DllImport("kernel32.dll", SetLastError = true, CharSet = CharSet.Unicode, EntryPoint = "GetLongPathNameW"), SuppressUnmanagedCodeSecurity]
      [return: MarshalAs(UnmanagedType.U4)]
      internal static extern uint GetLongPathName([MarshalAs(UnmanagedType.LPWStr)] string lpszShortPath, StringBuilder lpszLongPath, [MarshalAs(UnmanagedType.U4)] uint cchBuffer);

      /// <summary>Converts the specified path to its long form as a transacted operation.</summary>
      /// <returns>
      /// If the function succeeds, the return value is nonzero.
      /// If the function fails, the return value is zero. To get extended error information, call GetLastError.
      /// </returns>
      /// <remarks>Minimum supported client: Windows Vista [desktop apps only]</remarks>
      /// <remarks>Minimum supported server: Windows Server 2008 [desktop apps only]</remarks>
      [SuppressMessage("Microsoft.Security", "CA5122:PInvokesShouldNotBeSafeCriticalFxCopRule")]
      [DllImport("kernel32.dll", SetLastError = true, CharSet = CharSet.Unicode, EntryPoint = "GetLongPathNameTransactedW"), SuppressUnmanagedCodeSecurity]
      [return: MarshalAs(UnmanagedType.U4)]
      internal static extern uint GetLongPathNameTransacted([MarshalAs(UnmanagedType.LPWStr)] string lpszShortPath, StringBuilder lpszLongPath, [MarshalAs(UnmanagedType.U4)] uint cchBuffer, SafeHandle hTransaction);

      /// <summary>Retrieves the short path form of the specified path.</summary>
      /// <returns>
      /// If the function succeeds, the return value is nonzero.
      /// If the function fails, the return value is zero. To get extended error information, call GetLastError.
      /// </returns>
      /// <remarks>Minimum supported client: Windows XP</remarks>
      /// <remarks>Minimum supported server: Windows Server 2003</remarks>
      [SuppressMessage("Microsoft.Security", "CA5122:PInvokesShouldNotBeSafeCriticalFxCopRule")]
      [DllImport("kernel32.dll", SetLastError = true, CharSet = CharSet.Unicode, EntryPoint = "GetShortPathNameW"), SuppressUnmanagedCodeSecurity]
      [return: MarshalAs(UnmanagedType.U4)]
      internal static extern uint GetShortPathName([MarshalAs(UnmanagedType.LPWStr)] string lpszLongPath, StringBuilder lpszShortPath, [MarshalAs(UnmanagedType.U4)] uint cchBuffer);
   }
}
