// TortoiseSVN - a Windows shell extension for easy version control

// Copyright (C) 2009, 2021 - TortoiseSVN

// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software Foundation,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
#include "stdafx.h"
#include "COMError.h"

#pragma comment(lib, "Rpcrt4.lib")

COMError::COMError(HRESULT hr)
{
    _com_error  e(hr);
    IErrorInfo *pIErrorInfo = nullptr;
    GetErrorInfo(0, &pIErrorInfo);

    if (pIErrorInfo == nullptr)
    {
        e       = _com_error(hr);
        message = e.ErrorMessage();
    }
    else
    {
        e                         = _com_error(hr, pIErrorInfo);
        message                   = e.ErrorMessage();
        IErrorInfo *ptrIErrorInfo = e.ErrorInfo();
        if (ptrIErrorInfo != nullptr)
        {
            // IErrorInfo Interface located
            description      = static_cast<wchar_t *>(e.Description());
            source           = static_cast<wchar_t *>(e.Source());
            GUID     tmpGuid = e.GUID();
            RPC_WSTR guidStr = nullptr;
            // must link in Rpcrt4.lib for UuidToString
            UuidToString(&tmpGuid, &guidStr);
            uuid = reinterpret_cast<wchar_t *>(guidStr);
            RpcStringFree(&guidStr);

            ptrIErrorInfo->Release();
        }
    }
}

COMError::~COMError()
{
}