/**************************************************************************
 *
 * stocks.h - Stocks program.
 *
 ***************************************************************************
 *
 * Copyright (c) 1994-1999 Rogue Wave Software, Inc.  All Rights Reserved.
 *
 * This computer software is owned by Rogue Wave Software, Inc. and is
 * protected by U.S. copyright laws and other laws and by international
 * treaties.  This computer software is furnished by Rogue Wave Software,
 * Inc. pursuant to a written license agreement and may be used, copied,
 * transmitted, and stored only in accordance with the terms of such
 * license and with the inclusion of the above copyright notice.  This
 * computer software or any other copies thereof may not be provided or
 * otherwise made available to any other person.
 *
 * U.S. Government Restricted Rights.  This computer software is provided
 * with Restricted Rights.  Use, duplication, or disclosure by the
 * Government is subject to restrictions as set forth in subparagraph (c)
 * (1) (ii) of The Rights in Technical Data and Computer Software clause
 * at DFARS 252.227-7013 or subparagraphs (c) (1) and (2) of the
 * Commercial Computer Software – Restricted Rights at 48 CFR 52.227-19,
 * as applicable.  Manufacturer is Rogue Wave Software, Inc., 5500
 * Flatiron Parkway, Boulder, Colorado 80301 USA.
 *
 **************************************************************************/

#include <locale>
#include <string>
#include <deque>
#include <stdexcept>
#include <iostream>
#include <sstream>

#include <locale.h> 

#ifndef _RWSTD_NO_NAMESPACE
using namespace std;
#endif

//Stock exchange displays stock quote at various
//exchanges distributed globally. Stock prices varies
//at random(so much for real life!).

//Objective of the example is to show money,
//number,date and time formated using facets

#ifndef _RWSTD_NO_NAMESPACE
namespace {
size_t rand_   = 0;  //to manipulate radomness of stocks
struct tm* tmb = 0;  //to use by 'localTime()'
}
#else
static size_t rand_   = 0;  //to manipulate radomness of stocks
static struct tm* tmb = 0;  //to use by 'localTime()'
#endif
  
struct Company
{
  public:
    //
   Company(const string&s, double p):companyName(s),                                                                offerPrice(p){} 

   //In actuality a company should not manipulate stocks.
   //For simplicity let the company play with its own stock.

   void updateStock()
   {
      double change =offerPrice+randomChange(offerPrice);
      if(randomChange(marketOutlook())%2)
                stockPrice+=change;
          else
                stockPrice-=change;
      if(stockPrice<0)stockPrice=-(stockPrice);
   }
   unsigned long randomChange (unsigned long i) 
   { 
       if(i)return rand() % i;
       else return rand() % 2;
   }
   string companyName;
   double offerPrice; //initial offer price
   double stockPrice; //current market price
  private:
   string companyNews;//Make use of messaging (if at all it works !)
   size_t marketOutlook(){ return rand_++;}
};

class StockXchange: public locale::facet
{
  public:
     //
   typedef basic_ostream<char,char_traits<char> > outStream;
   typedef ostreambuf_iterator<char, char_traits<char> > iter_type;
   typedef deque<Company*,allocator<Company*> > database;
     
   StockXchange(size_t refs=0):locale::facet(refs){}
   StockXchange(const  StockXchange& se)
                            {companyDatabase = se.companyDatabase;}
   virtual ~StockXchange(){}
   
   static locale::id id;
   virtual  bool      put(ostream& os) const;
   virtual  void      add(const string& name, double initPrice);
   virtual  void      localTime(ostream&) const;

  protected:
   database companyDatabase;  
   friend StockXchange::outStream& operator<<
   (StockXchange::outStream&, const StockXchange&);
 
  private: 
   #ifdef _RWSTD_NO_MEMBER_TEMPLATES
   locale::id &__get_id (void) const { return id; }
   #endif
};

class TokyoStockXchange : public StockXchange
{
   public:
      //
    TokyoStockXchange(size_t refs=0)
                     :StockXchange(refs){}
   
    virtual  void      localTime(ostream& os) const
     {
       time_t tm = time(NULL);
       tmb = gmtime(&tm); 
       StockXchange::localTime(os);
     }

    virtual  bool  put(ostream& os) const 
     { 
       os<<'\n';
       os<<"######## TOKYO STOCK EXCHANGE #########"<<endl;
       if(StockXchange::put(os)) return 1;
       else return 0;
     }
}; 

class LondonStockXchange : public StockXchange
{
   public:
      //

    LondonStockXchange(size_t refs=0)
                      :StockXchange(refs){}
   
    virtual  void      localTime(ostream& os) const
     {
       time_t tm = time(NULL);
       tmb = gmtime(&tm); 
       StockXchange::localTime(os);
     }

    virtual  bool   put(ostream& os) const 
     { 
       os<<'\n';
       os<<"######## LONDON STOCK EXCHANGE #########"<<endl;
       if(StockXchange::put(os)) return 1;
       else return 0;
     }
}; 

class FrankFurtStockXchange : public StockXchange
{
   public:
      //
    FrankFurtStockXchange(size_t refs=0)
                         :StockXchange(refs){}

    virtual  void      localTime(ostream& os) const
     {
       time_t tm = time(NULL);
       tmb = gmtime(&tm); 
       StockXchange::localTime(os);
     }

    virtual  bool      put(ostream& os) const 
     { 
       os<<'\n';
       os<<"######## FRANKFURTER WERTPAPIERB\366RSE #########"<<endl;
       if(StockXchange::put(os)) return 1;
       else return 0; 
     }
};

class NewYorkStockXchange : public StockXchange
{
   public:
      //
    NewYorkStockXchange(size_t refs=0)
                       :StockXchange(refs){}

    virtual  void      localTime(ostream& os) const
     {
       time_t tm = time(NULL);
       tmb = localtime(&tm); 
       StockXchange::localTime(os);
     }

    virtual  bool    put(ostream& os) const 
     { 
       os<<'\n';
       os<<"######## NEW YORK STOCK EXCHANGE ########"<<endl;
       if(StockXchange::put(os)) return 1;
       else return 0; 
     }
}; 

class ParisStockXchange : public StockXchange
{
   public:
      //
    ParisStockXchange(size_t refs=0)
                     :StockXchange(refs){}

    virtual  void      localTime(ostream& os) const
     {
       time_t tm = time(NULL);
       tmb = gmtime(&tm); 
       StockXchange::localTime(os);
     }

    virtual  bool   put(ostream& os) const
     { 
       os<<'\n';
       os<<"######## BOURSE DE PARIS #########"<<endl;
       if(StockXchange::put(os)) return 1;
       else return 0;     
     }
};