/*
 *******************************************************************************
 *                                   INCLUDE
 *******************************************************************************
 */
#include "SerialCode.h"
#include <Poco/Random.h>

namespace Video
{
namespace Core
{
/*
 *******************************************************************************
 *                                CLASS DEFINE
 *******************************************************************************
 */
bool SerialCode::empty() const
{
    return _value.isNull();
}

void SerialCode::reset()
{
    return _value.clear();
}

const SerialCode& SerialCode::operator++()
{
    if (empty())
        _value = 0;

    ++_value;
    return *this;
}

const SerialCode& SerialCode::operator++(int)
{
    if (empty())
        _value = 0;

    _value++;
    return *this;
}

bool SerialCode::operator!=(const SerialCode& other)
{
    return _value != other._value;
}

const SerialCode& SerialCode::operator=(const SerialCode& other)
{
    _value = other._value;
    return *this;
}

const SerialCode& SerialCode::operator=(const uint32_t value)
{
    _value = value;
    return *this;
}

/*
 *******************************************************************************
 *                                CLASS DEFINE
 *******************************************************************************
 */
SerialCodeManager::SerialCodeManager()
{
    Poco::Random r;
    r.seed();
    _code = r.next();
}

void SerialCodeManager::increment()
{
    _code++;
}

/*
 *******************************************************************************
 *                                CLASS DEFINE
 *******************************************************************************
 */
bool SerialCodeWatcher::isChanged(const SerialCode& code, bool firstAsChanged)
{
    if (_code.empty())
    {
        _code = code;
        return firstAsChanged;
    }

    if (_code != code)
    {
        _code = code;
        return true;
    }

    return false;
}

void SerialCodeWatcher::reset()
{
    _code.reset();
}
}
}