/* Menes - C++ High-Level Utility Library
 * Copyright (C) 2003-2005  Jay Freeman (saurik)
*/

/*
 *        Redistribution and use in source and binary
 * forms, with or without modification, are permitted
 * provided that the following conditions are met:
 * 
 * 1. Redistributions of source code must retain the
 *    above copyright notice, this list of conditions
 *    and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the
 *    above copyright notice, this list of conditions
 *    and the following disclaimer in the documentation
 *    and/or other materials provided with the
 *    distribution.
 * 3. The name of the author may not be used to endorse
 *    or promote products derived from this software
 *    without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#include "cxx/standard.hh"
#pragma hdrstop("build/cxx/standard.pch")

#include "api/com/error.hpp"
#include "cse/utf16.hpp"

#include "ios/string.hpp"
#include "ios/printwriter.hpp"

#include <wtypes.h>
#include <oleauto.h>
#include "api/win32/undefine.hpp"

namespace api {
namespace Com {

const char *ApiTraits::GetName() {
    return "COM";
}

ApiTraits::ErrorCode ApiTraits::GetLastError() {
    ErrorCode code;
    ::GetErrorInfo(0, &code.Mend());
    return code;
}

int ApiTraits::ToInteger(const ErrorCode &code) {
    return static_cast<int>(reinterpret_cast<intptr_t>(code.GetValue()));
}

cse::String ApiTraits::GetMessage(const ErrorCode &code) {
    _S<ios::String> message;

    {
        BSTR source;
        code->GetSource(&source);
        message << cse::Utf16String(source, reinterpret_cast<uint32_t *>(source)[-1]);
        ::SysFreeString(source);
    }

    message << ": ";

    {
        BSTR description;
        code->GetDescription(&description);
        message << cse::Utf16String(description, reinterpret_cast<uint32_t *>(description)[-1]);
        ::SysFreeString(description);
    }

    return message;
}

} }