//------------------------------------------------------------------------------
/*
    This file is part of Beast: https://github.com/vinniefalco/Beast
    Copyright 2013, Vinnie Falco <vinnie.falco@gmail.com>

    Permission to use, copy, modify, and/or distribute this software for any
    purpose  with  or without fee is hereby granted, provided that the above
    copyright notice and this permission notice appear in all copies.

    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
//==============================================================================

#include <xrpl/beast/insight/NullCollector.h>

namespace beast {
namespace insight {

namespace detail {

class NullHookImpl : public HookImpl
{
public:
    explicit NullHookImpl() = default;

private:
    NullHookImpl&
    operator=(NullHookImpl const&);
};

//------------------------------------------------------------------------------

class NullCounterImpl : public CounterImpl
{
public:
    explicit NullCounterImpl() = default;

    void
    increment(value_type) override
    {
    }

private:
    NullCounterImpl&
    operator=(NullCounterImpl const&);
};

//------------------------------------------------------------------------------

class NullEventImpl : public EventImpl
{
public:
    explicit NullEventImpl() = default;

    void
    notify(value_type const&) override
    {
    }

private:
    NullEventImpl&
    operator=(NullEventImpl const&);
};

//------------------------------------------------------------------------------

class NullGaugeImpl : public GaugeImpl
{
public:
    explicit NullGaugeImpl() = default;

    void
    set(value_type) override
    {
    }

    void
    increment(difference_type) override
    {
    }

private:
    NullGaugeImpl&
    operator=(NullGaugeImpl const&);
};

//------------------------------------------------------------------------------

class NullMeterImpl : public MeterImpl
{
public:
    explicit NullMeterImpl() = default;

    void
    increment(value_type) override
    {
    }

private:
    NullMeterImpl&
    operator=(NullMeterImpl const&);
};

//------------------------------------------------------------------------------

class NullCollectorImp : public NullCollector
{
private:
public:
    NullCollectorImp() = default;

    ~NullCollectorImp() = default;

    Hook
    make_hook(HookImpl::HandlerType const&) override
    {
        return Hook(std::make_shared<detail::NullHookImpl>());
    }

    Counter
    make_counter(std::string const&) override
    {
        return Counter(std::make_shared<detail::NullCounterImpl>());
    }

    Event
    make_event(std::string const&) override
    {
        return Event(std::make_shared<detail::NullEventImpl>());
    }

    Gauge
    make_gauge(std::string const&) override
    {
        return Gauge(std::make_shared<detail::NullGaugeImpl>());
    }

    Meter
    make_meter(std::string const&) override
    {
        return Meter(std::make_shared<detail::NullMeterImpl>());
    }
};

}  // namespace detail

//------------------------------------------------------------------------------

std::shared_ptr<Collector>
NullCollector::New()
{
    return std::make_shared<detail::NullCollectorImp>();
}

}  // namespace insight
}  // namespace beast
