#ifndef __JTRIGGER__JFRAME_T__
#define __JTRIGGER__JFRAME_T__

#include <vector>

#include "JTrigger/JHitToolkit.hh"


/**
 * \author mdejong
 */

namespace JTRIGGER {}
namespace JPP { using namespace JTRIGGER; }

namespace JTRIGGER {

  /**
   * Data frame with end marker.
   *
   * The end marker is a special element that is used in JTOOLS::JMergeSort to speed up the sorting of data.\n
   * It is placed within the capacity of the container whilst its size is maintained.\n
   * Here, it is defined by an element of which the time is larger than any possible nominal value.\n
   * The end marker should manually be put using method putEndMarker() after modifications of the contents of the container.
   */
  template<class JElement_t, class JAllocator_t = std::allocator<JElement_t> >
  class JFrame_t :
    public std::vector<JElement_t, JAllocator_t>,
    public JHitToolkit<JElement_t>
  {
  public:
    /**
     * Default constructor.
     *
     * Empty container with end marker.
     */
    JFrame_t() 
    {
      this->putEndMarker();
    }


    /**
     * Copy constructor.
     *
     * \param  frame          frame
     */
    JFrame_t(const JFrame_t& frame) :
      std::vector<JElement_t, JAllocator_t>(frame.begin(), frame.end())
    {
      this->putEndMarker();
    }


    /**
     * Move constructor.
     *
     * \param  frame          frame
     */
    JFrame_t(JFrame_t&& frame)
    {
      this->swap(frame);
      this->putEndMarker();
    }


    /**
     * Assignment operator.
     *
     * \param  frame          frame
     * \return                this frame
     */
    JFrame_t& operator=(const JFrame_t& frame)
    {
      this->assign(frame.begin(), frame.end());
      this->putEndMarker();

      return *this;
    }


    /**
     * Move assignment operator.
     *
     * \param  frame          frame
     * \return                this frame
     */
    JFrame_t& operator=(JFrame_t&& frame)
    {
      this->swap(frame);
      this->putEndMarker();

      return *this;
    }


    /**
     * Check presence of end marker.
     *
     * \return                true if end marker present; else false
     */
    bool hasEndMarker() const
    {
      return (this->capacity() > this->size() && this->getT(*(this->end())) == this->getT(this->getEndMarker()));
    }


    /**
     * Append end marker to data.
     */
    void putEndMarker()
    {
      if (this->capacity() <= this->size()) {
	this->reserve(this->size() + 1);
      }

      *(this->end()) = this->getEndMarker();
    }


    /**
     * Reset.
     *
     * Clear container and put end marker.
     */
    void reset()
    {
      this->clear();
      this->putEndMarker();
    }
  };
}

#endif