class Stock;
class Order;
#include <map>
#include <list>
#include <vector>
#include "Task.h"

class StockMarket : public Task
{
public:
  void add( Stock* );
  void addSell( Order* );
  void addBuy( Order* );
  void doTask();
  vector<Stock*>::const_iterator begin() const { return stocks_.begin(); }
  vector<Stock*>::const_iterator end() const { return stocks_.end(); }
  vector<Stock*>::iterator begin() { return stocks_.begin(); }
  vector<Stock*>::iterator end() { return stocks_.end(); }

private:                                                                           
  list<Order*>::iterator topSell( Stock * );
  list<Order*>::iterator topBuy( Stock * );
  void execute( Stock * );

  vector<Stock *> stocks_;
  struct orderList
  {
    list<Order*> sell;
    list<Order*> buy;
  };
  map<Stock*, orderList> orders_;
};