#ifndef __CPPLUGINS__INTERFACE__WORKSPACE__H__
#define __CPPLUGINS__INTERFACE__WORKSPACE__H__

#include <cpExtensions/DataStructures/Graph.h>
#include <cpPlugins/Interface/Interface.h>
#include <cpPlugins/Interface/DataObject.h>
#include <cpPlugins/Interface/ProcessObject.h>

#include <set>
#include <string>

// Some forward declarations
class QWidget;

namespace cpPlugins
{
  namespace Interface
  {
    /**
     */
    class cpPlugins_Interface_EXPORT Workspace
    {
    public:
      typedef cpPlugins::Interface::Interface     TInterface;
      typedef cpPlugins::Interface::Object        TObject;
      typedef cpPlugins::Interface::ProcessObject TFilter;
      typedef cpPlugins::Interface::DataObject    TData;
      typedef TFilter::TParameters                TParameters;

      // Various types
      typedef std::set< std::string > TStringContainer;

      // Graph type
      typedef std::pair< std::string, std::string > TConnection;
      typedef
        cpExtensions::DataStructures::
        Graph< TObject::Pointer, TConnection, std::string > TGraph;

    public:
      Workspace( );
      virtual ~Workspace( );

      // Plugins management
      bool LoadPluginsPath( const std::string& path, bool r = false );
      bool LoadPlugins( const std::string& fname );
      const TStringContainer& GetLoadedPlugins( ) const;
      void GetLoadedPluginCategories( TStringContainer& categories ) const;
      void GetLoadedPluginFilters( TStringContainer& filters ) const;
      const TStringContainer& GetLoadedPluginFilters(
        const std::string& category
        ) const;

      // Workspace IO
      std::string LoadWorkspace( const std::string& fname );
      std::string SaveWorkspace( const std::string& fname ) const;

      // Graph management
      void Clear( );
      TGraph* GetGraph( );
      const TGraph* GetGraph( ) const;
      bool CreateFilter( const std::string& filter, const std::string& name );
      bool Connect(
        const std::string& orig_filter, const std::string& dest_filter,
        const std::string& output_name,
        const std::string& input_name
        );
      TParameters* GetParameters( const std::string& name );
      const TParameters* GetParameters( const std::string& name ) const;
      TFilter* GetFilter( const std::string& name );
      const TFilter* GetFilter( const std::string& name ) const;

      // Graph reduction
      bool Reduce( const std::string& name );

      // Pipeline execution
      std::string Execute( );
      std::string Execute( const std::string& name, QWidget* p = NULL );

    protected:
      void _UpdateLoadedPluginsInformation( );

    protected:
      // Plugins interface
      TInterface       m_Interface;
      std::string      m_LastLoadedPlugin;
      TStringContainer m_LoadedPlugins;
      std::map< std::string, TStringContainer > m_LoadedFilters;

      // Processing graph
      typename TGraph::Pointer m_Graph;
    };

  } // ecapseman

} // ecapseman

#endif // __CPPLUGINS__INTERFACE__WORKSPACE__H__

// eof - $RCSfile$