#ifndef __CPPLUGINS__INTERFACE__PARAMETERS__H__
#define __CPPLUGINS__INTERFACE__PARAMETERS__H__

#include <cpPlugins/Interface/cpPlugins_Interface_Export.h>

#include <map>
#include <ostream>
#include <string>
#include <vector>

#include <itkObject.h>
#include <itkObjectFactory.h>

namespace cpPlugins
{
  namespace Interface
  {
    // Some forward declarations
    class ProcessObject;

    /**
     */
    class cpPlugins_Interface_EXPORT Parameters
      : public itk::Object
    {
    public:
      typedef Parameters                      Self;
      typedef itk::Object                     Superclass;
      typedef itk::SmartPointer< Self >       Pointer;
      typedef itk::SmartPointer< const Self > ConstPointer;

      enum Type
      {
        String     , Bool       , Int        ,
        Uint       , Real       , Index      ,
        Point      , Vector     , StringList ,
        BoolList   , IntList    , UintList   ,
        RealList   , IndexList  , PointList  ,
        VectorList , Choices    , NoType
      };

      typedef bool          TBool;
      typedef long          TInt;
      typedef unsigned long TUint;
      typedef double        TReal;
      typedef std::string   TString;

      // NOTE: std::pair< default, value >
      typedef std::pair< TString, TString >    TValues;
      typedef std::pair< Self::Type, TValues > TParameter;
      typedef std::map< TString, TParameter >  TParameters;

    public:
      itkNewMacro( Self );
      itkTypeMacro( cpPlugins::Interface::Parameters, itk::Object );

    public:
      // To impact pipeline
      virtual ProcessObject* GetProcessObject( );
      virtual const ProcessObject* GetProcessObject( ) const;
      virtual void SetProcessObject( ProcessObject* v );
      virtual void Modified( ) const;

      // Parameters container configuration
      void Clear( );

      void ConfigureAsString( const TString& name, const TString& v );
      void ConfigureAsBool( const TString& name, const TBool& v );
      void ConfigureAsInt( const TString& name, const TInt& v );
      void ConfigureAsUint( const TString& name, const TUint& v );
      void ConfigureAsReal( const TString& name, const TReal& v );

      template< class I >
        inline void ConfigureAsIndex(
          const TString& name, const TUint& dim, const I& v
          );
      template< class P >
        inline void ConfigureAsPoint(
          const TString& name, const TUint& dim, const P& v
          );
      template< class V >
        inline void ConfigureAsVector(
          const TString& name, const TUint& dim, const V& v
          );

      void ConfigureAsStringList( const TString& name );
      void ConfigureAsBoolList( const TString& name );
      void ConfigureAsIntList( const TString& name );
      void ConfigureAsUintList( const TString& name );
      void ConfigureAsRealList( const TString& name );
      void ConfigureAsIndexList( const TString& name );
      void ConfigureAsPointList( const TString& name );
      void ConfigureAsVectorList( const TString& name );
      void ConfigureAsChoices(
        const TString& name, const std::vector< TString >& choices
        );

      // Get methods
      void GetNames( std::vector< TString >& container ) const;
      Type GetType( const TString& name ) const;

      bool HasString( const TString& name ) const;
      bool HasBool( const TString& name ) const;
      bool HasInt( const TString& name ) const;
      bool HasUint( const TString& name ) const;
      bool HasReal( const TString& name ) const;
      bool HasIndex( const TString& name ) const;
      bool HasPoint( const TString& name ) const;
      bool HasVector( const TString& name ) const;
      bool HasStringList( const TString& name ) const;
      bool HasBoolList( const TString& name ) const;
      bool HasIntList( const TString& name ) const;
      bool HasUintList( const TString& name ) const;
      bool HasRealList( const TString& name ) const;
      bool HasIndexList( const TString& name ) const;
      bool HasPointList( const TString& name ) const;
      bool HasVectorList( const TString& name ) const;
      bool HasChoices( const TString& name ) const;

      TString GetString( const TString& name ) const;
      TBool GetBool( const TString& name ) const;
      TInt GetInt( const TString& name ) const;
      TUint GetUint( const TString& name ) const;
      TReal GetReal( const TString& name ) const;

      void GetStringList(
        std::vector< TString >& lst, const TString& name
        ) const;
      void GetBoolList(
        std::vector< TBool >& lst, const TString& name
        ) const;
      void GetIntList(
        std::vector< TInt >& lst, const TString& name
        ) const;
      void GetUintList(
        std::vector< TUint >& lst, const TString& name
        ) const;
      void GetRealList(
        std::vector< TReal >& lst, const TString& name
        ) const;

      void GetChoices(
        std::vector< TString >& choices, const TString& name
        ) const;
      TString GetSelectedChoice( const TString& name ) const;

      template< class I >
        inline I GetIndex( const TString& name, const TUint& dim ) const;
      template< class P >
        inline P GetPoint( const TString& name, const TUint& dim ) const;
      template< class V >
        inline V GetVector( const TString& name, const TUint& dim ) const;

      template< class I >
        inline void GetIndexList(
          std::vector< I >& lst, const TString& name, const TUint& dim
          ) const;
      template< class P >
        inline void GetPointList(
          std::vector< P >& lst, const TString& name, const TUint& dim
          ) const;
      template< class V >
        inline void GetVectorList(
          std::vector< V >& lst, const TString& name, const TUint& dim
          ) const;

      // Set methods
      void SetString( const TString& name, const TString& v );
      void SetBool( const TString& name, const TBool& v );
      void SetInt( const TString& name, const TInt& v );
      void SetUint( const TString& name, const TUint& v );
      void SetReal( const TString& name, const TReal& v );

      template< class I >
        inline void SetIndex(
          const TString& name, const TUint& dim, const I& v
          );
      template< class P >
        inline void SetPoint(
          const TString& name, const TUint& dim, const P& v
          );
      template< class V >
        inline void SetVector(
          const TString& name, const TUint& dim, const V& v
          );

      void AddToStringList( const TString& name, const TString& v );
      void AddToBoolList( const TString& name, const TBool& v );
      void AddToIntList( const TString& name, const TInt& v );
      void AddToUintList( const TString& name, const TUint& v );
      void AddToRealList( const TString& name, const TReal& v );

      template< class I >
        inline void AddToIndexList(
          const TString& name, const TUint& dim, const I& v
          );
      template< class P >
        inline void AddToPointList(
          const TString& name, const TUint& dim, const P& v
          );
      template< class P >
        inline void AddToVectorList(
          const TString& name, const TUint& dim, const P& v
          );

      void ClearStringList( const TString& name );
      void ClearBoolList( const TString& name );
      void ClearIntList( const TString& name );
      void ClearUintList( const TString& name );
      void ClearRealList( const TString& name );
      void ClearIndexList( const TString& name );
      void ClearPointList( const TString& name );
      void ClearVectorList( const TString& name );

      bool SetSelectedChoice( const TString& name, const TString& choice );

    protected:
      Parameters( );
      virtual ~Parameters( );
      void PrintSelf( std::ostream& os, itk::Indent indent ) const;

    private:
      // Purposely not implemented
      Parameters( const Self& other );
      Self& operator=( const Self& other );

    protected:
      TParameters m_Parameters;
      ProcessObject* m_Process;
    };

  } // ecapseman

} // ecapseman

#include <cpPlugins/Interface/Parameters.hxx>

#endif // __CPPLUGINS__INTERFACE__PARAMETERS__H__

// eof - $RCSfile$