#include "enum-value.h"

#include "fatal-error.h"

#include <sstream>

namespace ns3 {

EnumValue::EnumValue (int v)

  : m_v (v)

{}

void 

EnumValue::Set (int v)

{

  m_v = v;

}

int 

EnumValue::Get (void) const

{

  return m_v;

}

PValue

EnumValue::Copy (void) const

{

  return PValue::Create<EnumValue> (*this);

}

std::string 

EnumValue::SerializeToString (Ptr<const ParamSpec> spec) const

{

  const EnumParamSpec *p = dynamic_cast<const EnumParamSpec *> (PeekPointer (spec));

  NS_ASSERT (p != 0);

  for (EnumParamSpec::ValueSet::const_iterator i = p->m_valueSet.begin (); i != p->m_valueSet.end (); i++)

    {

      if (i->first == m_v)

	{

	  return i->second;

	}

    }

  NS_FATAL_ERROR ("The user has set an invalid C++ value in this EnumValue");

  // quiet compiler.

  return "";

}

bool 

EnumValue::DeserializeFromString (std::string value, Ptr<const ParamSpec> spec)

{

  const EnumParamSpec *p = dynamic_cast<const EnumParamSpec *> (PeekPointer (spec));

  NS_ASSERT (p != 0);

  for (EnumParamSpec::ValueSet::const_iterator i = p->m_valueSet.begin (); i != p->m_valueSet.end (); i++)

    {

      if (i->second == value)

	{

	  m_v = i->first;

	  return true;

	}

    }

  return false;

}

EnumValue::EnumValue (PValue value)

{

  const EnumValue *v = value.DynCast<const EnumValue *> ();

  if (v == 0)

    {

      NS_FATAL_ERROR ("assigning non-Enum value to Enum value.");

    }

  m_v = v->m_v;

}

EnumValue::operator PValue () const

{

  return PValue::Create<EnumValue> (*this);

}

EnumParamSpec::EnumParamSpec ()

{}

void 

EnumParamSpec::AddDefault (int v, std::string name)

{

  m_valueSet.push_front (std::make_pair (v, name));

}

void 

EnumParamSpec::Add (int v, std::string name)

{

  m_valueSet.push_back (std::make_pair (v, name));

}

bool 

EnumParamSpec::Set (ObjectBase * object, PValue value) const

{

  const EnumValue *p = value.DynCast<const EnumValue *> ();

  if (p == 0)

    {

      return false;

    }

  DoSet (object, p);

  return true;

}

bool 

EnumParamSpec::Get (const ObjectBase * object, PValue value) const

{

  EnumValue *p = value.DynCast<EnumValue *> ();

  if (p == 0)

    {

      return false;

    }

  DoGet (object, p);

  return true;

}

bool 

EnumParamSpec::Check (PValue value) const

{

  const EnumValue *p = value.DynCast<const EnumValue *> ();

  if (p == 0)

    {

      return false;

    }

  for (ValueSet::const_iterator i = m_valueSet.begin (); i != m_valueSet.end (); i++)

    {

      if (i->first == p->Get ())

	{

	  return true;

	}

    }

  return false;

}

PValue

EnumParamSpec::GetInitialValue (void) const

{

  NS_ASSERT (!m_valueSet.empty ());

  return PValue::Create<EnumValue> (m_valueSet.front ().first);

}

PValue

EnumParamSpec::CreateValue (void) const

{

  return PValue::Create<EnumValue> (m_valueSet.front ().first);

}

} // namespace ns3