//  File: Package.cpp
//
//  Implementation of the Package derived class

#include <iostream>
#include "Package.h"

using namespace std ;


// Default constructor
//
Package::Package() {

#ifndef NDEBUG
   cerr << "Default Package constructor, Serial Number = " << serial() << endl ;
#endif

   length = height = width = 0.0 ;  // sides have length 0.0 by default
   inside = NULL ;
}


// Alternate constructor: create a package with specified sides
//
Package::Package(float len, float ht, float wd)

: Box(len, ht, wd)  // use member initializer

{
#ifndef NDEBUG
   cerr << "Alternate Package constructor, Serial Number = " << serial() << endl ;
#endif

   inside = NULL ;
}


// Destructor
//
Package::~Package() {
#ifndef NDEBUG
   cerr << "Package destructor, Serial Number = " << serial() << endl ;
#endif

   // Do nothing
}


// report vital stats for package
//
void Package::identify() {

   cout << "This package has length=" << length
    << ", height=" << height
        << " & width=" << width << endl ;

   if (inside == NULL) {
      cout << "   This package is empty" << endl ;
   } else {
      cout << "   This package contains the following:" << endl ;
      inside->identify() ;
   }
}


// store item in this package, if the item fits and if this
// package is empty.
//
bool Package::Store (Package *item) {
   int r ;

   if (inside != NULL) {
      return 0 ;
   }

   r = compare(*this, *item) ; // "this" means this package
   if (r > 0) {
      inside = item ;
      return true ;
   } else {
      return false ;
   }
}


// Return contents and set inside to NULL
//
Package *Package::Empty() {
   Package *temp ;

   temp = inside ;
   inside = NULL ;
   return temp ;
}


// Return stored item
//
Package *Package::Content() {
   return inside ;
}