/****************************************************************************
**
** Copyright (C) 2018 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtBluetooth module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
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** information use the contact form at https://www.qt.io/contact-us.
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** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
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** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
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** included in the packaging of this file. Please review the following
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****************************************************************************/

#ifndef QBLUETOOTHUTILS_WINRT_P_H
#define QBLUETOOTHUTILS_WINRT_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

// Workaround for Windows SDK bug.
// See https://github.com/microsoft/Windows.UI.Composition-Win32-Samples/issues/47
 #include <winrt/base.h>
#include <QtCore/private/qfactorycacheregistration_p.h>
namespace winrt::impl
{
    template <typename Async>
    auto wait_for(Async const& async, Windows::Foundation::TimeSpan const& timeout);
}

#include <QtCore/QElapsedTimer>
#include <QtCore/QCoreApplication>
#include <QtCore/QtGlobal>

#include <wrl/client.h>
#include <winrt/Windows.Foundation.h>

namespace ABI {
    namespace Windows {
        namespace Storage {
            namespace Streams {
                struct IBuffer;
            }
        }
    }
}

QT_BEGIN_NAMESPACE

using NativeBuffer = ABI::Windows::Storage::Streams::IBuffer;
QByteArray byteArrayFromBuffer(const Microsoft::WRL::ComPtr<NativeBuffer> &buffer,
                               bool isWCharString = false);

// The calls to Co(Un)init must be balanced
void mainThreadCoInit(void* caller);
void mainThreadCoUninit(void* caller);

template <typename T>
static bool await(winrt::Windows::Foundation::IAsyncOperation<T> &&asyncInfo, T &result,
                  uint timeout = 0)
{
    using WinRtAsyncStatus = winrt::Windows::Foundation::AsyncStatus;
    WinRtAsyncStatus status;
    QElapsedTimer timer;
    if (timeout)
        timer.start();
    do {
        QCoreApplication::processEvents();
        status = asyncInfo.Status();
    } while (status == WinRtAsyncStatus::Started && (!timeout || !timer.hasExpired(timeout)));
    if (status == WinRtAsyncStatus::Completed) {
        result = asyncInfo.GetResults();
        return true;
    } else {
        return false;
    }
}

QT_END_NAMESPACE

#endif // QBLUETOOTHSOCKET_WINRT_P_H
