/*
 * Copyright (C) 2010 Apple Inc. All rights reserved.
 *
 * 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.
 */

#ifndef MessageSender_h
#define MessageSender_h

#include <wtf/Assertions.h>
#include "Connection.h"

namespace IPC {

class MessageSender {
public:
    virtual ~MessageSender();

    template<typename U> bool send(const U& message)
    {
        return send(message, messageSenderDestinationID(), 0);
    }

    template<typename U> bool send(const U& message, uint64_t destinationID, unsigned messageSendFlags = 0)
    {
        static_assert(!U::isSync, "Message is sync!");

        auto encoder = std::make_unique<MessageEncoder>(U::receiverName(), U::name(), destinationID);
        encoder->encode(message.arguments());
        
        return sendMessage(WTFMove(encoder), messageSendFlags);
    }

    template<typename T>
    bool sendSync(T&& message, typename T::Reply&& reply, std::chrono::milliseconds timeout = std::chrono::milliseconds::max(), unsigned syncSendFlags = 0)
    {
        static_assert(T::isSync, "Message is not sync!");

        return sendSync(std::forward<T>(message), WTFMove(reply), messageSenderDestinationID(), timeout, syncSendFlags);
    }

    template<typename T>
    bool sendSync(T&& message, typename T::Reply&& reply, uint64_t destinationID, std::chrono::milliseconds timeout = std::chrono::milliseconds::max(), unsigned syncSendFlags = 0)
    {
        ASSERT(messageSenderConnection());

        return messageSenderConnection()->sendSync(WTFMove(message), WTFMove(reply), destinationID, timeout, syncSendFlags);
    }

    virtual bool sendMessage(std::unique_ptr<MessageEncoder>, unsigned messageSendFlags);

private:
    virtual Connection* messageSenderConnection() = 0;
    virtual uint64_t messageSenderDestinationID() = 0;
};

} // namespace IPC

#endif // MessageSender_h
