// =========================================================================
// @author Leonardo Florez-Valencia (florez-l@javeriana.edu.co)
// =========================================================================

#include "PluginsNavigator.h"
#include <boost/tokenizer.hpp>

// -------------------------------------------------------------------------
PluginsNavigator::
PluginsNavigator( QWidget* parent )
  : Superclass( parent )
{
  this->m_PlgMgr.Configure( );

  this->setDragEnabled( true );
  this->setDragDropMode( QAbstractItemView::DragOnly );
  this->setAlternatingRowColors( true );
  this->Update( );
}

// -------------------------------------------------------------------------
PluginsNavigator::
~PluginsNavigator( )
{
}

// -------------------------------------------------------------------------
void PluginsNavigator::
Update( )
{
  this->_Clear( );
  this->_Update( );
}

// -------------------------------------------------------------------------
void PluginsNavigator::
_Clear( )
{
  this->clear( );
  this->setColumnCount( 1 );
  QString header_txt = "Plugins";
  if( QTreeWidgetItem* header = this->headerItem( ) )
    header->setText( 0, header_txt );
  else
    this->setHeaderLabel( header_txt );
}

// -------------------------------------------------------------------------
void PluginsNavigator::
_Update( )
{
  typedef boost::char_separator< char > _TSep;
  typedef boost::tokenizer< _TSep > _TTok;
  typedef cpPlugins::Interface::Manager::TPlugins _TPlugins;
  typedef _TPlugins::value_type _TPlg;

  for( const _TPlg& plg: this->m_PlgMgr.GetPlugins( ) )
  {
    _TSep sep{ ":" };
    _TTok tokens{ plg.first, sep };
    QTreeWidgetItem* cat = NULL;
    for( const std::string& t: tokens )
    {
      QList< QTreeWidgetItem* > cat_items;

      /* TODO
         if( cat != NULL )
         cat_items =
         cat->findItems( t.c_str( ), Qt::MatchExactly | Qt::MatchRecursive );
         else
      */
      cat_items =
        this->findItems( t.c_str( ), Qt::MatchExactly | Qt::MatchRecursive );
      if( cat_items.size( ) == 0 )
      {
        bool prev = ( cat == NULL );
        cat = new QTreeWidgetItem( cat, QStringList( t.c_str( ) ) );
        if( prev )
          this->addTopLevelItem( cat );
      }
      else
        cat = cat_items[ 0 ];
    } // rof
  } // rof
  this->expandAll( );
}

// eof - $RCSfile$