/*
 * Copyright (C) 2020 Igalia S.L.
 *
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``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 APPLE INC. OR ITS CONTRIBUTORS
 * 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 "config.h"
#include "UserMediaCaptureManager.h"

#if USE(GLIB) && ENABLE(MEDIA_STREAM)

#include "UserMediaCaptureManagerMessages.h"
#include "WebProcess.h"
#include <WebCore/CaptureDeviceWithCapabilities.h>
#include <WebCore/MediaDeviceHashSalts.h>
#include <WebCore/MediaStreamRequest.h>
#include <WebCore/RealtimeMediaSourceCenter.h>

namespace WebKit {
using namespace WebCore;

UserMediaCaptureManager::UserMediaCaptureManager(WebProcess& process)
{
    process.addMessageReceiver(Messages::UserMediaCaptureManager::messageReceiverName(), *this);
}

UserMediaCaptureManager::~UserMediaCaptureManager()
{
    WebProcess::singleton().removeMessageReceiver(Messages::UserMediaCaptureManager::messageReceiverName());
}

void UserMediaCaptureManager::validateUserMediaRequestConstraints(WebCore::MediaStreamRequest request, WebCore::MediaDeviceHashSalts&& deviceIdentifierHashSalts, ValidateUserMediaRequestConstraintsCallback&& completionHandler)
{
    m_validateUserMediaRequestConstraintsCallback = WTFMove(completionHandler);
    auto invalidHandler = [this](const String& invalidConstraint) mutable {
        Vector<CaptureDevice> audioDevices;
        Vector<CaptureDevice> videoDevices;
        m_validateUserMediaRequestConstraintsCallback(invalidConstraint, audioDevices, videoDevices);
    };

    auto validHandler = [this](Vector<CaptureDevice>&& audioDevices, Vector<CaptureDevice>&& videoDevices) mutable {
        m_validateUserMediaRequestConstraintsCallback(std::nullopt, audioDevices, videoDevices);
    };

    RealtimeMediaSourceCenter::singleton().validateRequestConstraints(WTFMove(validHandler), WTFMove(invalidHandler), request, WTFMove(deviceIdentifierHashSalts));
}

void UserMediaCaptureManager::getMediaStreamDevices(bool revealIdsAndLabels, GetMediaStreamDevicesCallback&& completionHandler)
{
    RealtimeMediaSourceCenter::singleton().getMediaStreamDevices([completionHandler = WTFMove(completionHandler), revealIdsAndLabels](auto&& devices) mutable {
        Vector<CaptureDeviceWithCapabilities> devicesWithCapabilities;

        devicesWithCapabilities.reserveInitialCapacity(devices.size());
        for (auto& device : devices) {
            RealtimeMediaSourceCapabilities deviceCapabilities;

            if (device.isInputDevice()) {
                auto capabilities = RealtimeMediaSourceCenter::singleton().getCapabilities(device);
                if (!capabilities)
                    continue;

                if (revealIdsAndLabels)
                    deviceCapabilities = *capabilities;
            }

            devicesWithCapabilities.uncheckedAppend({ WTFMove(device), WTFMove(deviceCapabilities) });
        }

        completionHandler(WTFMove(devicesWithCapabilities));
    });
}

} // namespace WebKit

#endif
