//===============================
//
// Implementation for image library class
//

#include <iostream>
#include <fstream>

#include "Image.h"
#include "ImageLibrary.h"


// ---------------------------------
// Constructor

ImageLibrary::ImageLibrary( std::vector<Image*> images ) 
{
  // Really you would copy the images rather than rely on the pointers
  // but students would not be expected to do this.
  m_images = images ;
}


// ---------------------------
// To return all images
std::vector<Image*> ImageLibrary::image( ) 
{
  return m_images ;
}


// ----------------------
// Number of images in library
int ImageLibrary::size() { return m_images.size() ; }


// ---------------------------
// To return an image by date
Image* ImageLibrary::image( int date ) 
{
  for( int ind=0; ind < m_images.size(); ++ind ) 
  {
    if( m_images[ind]->date() == date ) return m_images[ind] ;
  }
  return NULL ;
}


// ---------------------------
// To return a set of images witihn a date range
std::vector<Image*> ImageLibrary::image( int d1 ,  int d2 ) 
{
  std::vector<Image*> images;

  for( int ind=0; ind < m_images.size(); ++ind ) 
  {
    if( ( d1 <= m_images[ind]->date() ) && 
        ( m_images[ind]->date() <= d2 ) 
      ) images.push_back( m_images[ind] ) ;
  }
  return images ;
}