ROMS_Menu.h

#ifndef ROMS_MENU_H_
#define ROMS_MENU_H_

//other types
#include "Category.h"
#include "Menu_Item.h"
#include "Recipe.h"
#include "Ingredient.h"
#include "Order.h"
#include "Order_Item.h"
#include "Point.h"
#include "std_lib_facilities.h"
#include <map>

using namespace std;

namespace ROMS{   
	
	enum Msg_type{
	Exit_program=1, About_info, About_help, Close_about_box,
	Read_recipes_ingredients, Read_orders, Read_category_menu_items,
	Show_order, Show_recipe, Show_menu, Show_catagories, Show_tables, //Project II Part B.3 M.O.
	Find_category_sales, Find_table_sales, Find_menu_item_sales,
	Update_add_order_item, Update_add_menu_item, Update_add_recipe,
	Tables_button, Orders_button, Categories_button, Recipes_button, Menu_items_button,
	Display_window, Menu_bar_cb, Find_menu_item_button, Add_recipe_button,//JZ C3
	Graf_totsales //Project II Part D.1 M.O.
	};
   
	struct InvalidType : std::runtime_error {
	  InvalidType(): runtime_error("Invalid type data") {}
	};

class ROMS_Menu {
public:
   struct InvalidData : std::runtime_error {
      InvalidData(): runtime_error("Invalid input data format") {}
   };

   struct InvalidFile : std::runtime_error {
      InvalidFile(): runtime_error("Invalid input file name") {}
   };

   enum Main_menu_options{ Info=1, Read, Show, Find, Update, Exit }; 

   enum Rec_type{ Cats=1, Menu_entry, Rec, Ingred, Ord, Ord_item };

   enum File_type{	Tbls=Tables_button, 
					CatMI=Categories_button, 
					Prds=Menu_items_button, 
					Carts=Orders_button, 
					Items=Recipes_button }; 
		
	ROMS_Menu();
   
   void display_main_menu() const;
   void display_info() const;//display assignment info & your name plus "Project Part I"
   void read();		 
   void update();
   int updateOrderItem(int order_id, int menu_item_id, int qty, string seat_id); //Project II Part C.1 M.O.
   int updateMenuItem(int menu_id, int cat_id, int recipe_id, string menu_item_name, double price, string description); //DTC C.2
   void show() const;
   string showCatagories() const; //Project II Part B.3 M.O.
   string showOrderItem() const;//Project II Part B.3 M.O.
   double find(int find_num, int ID);
   void read_recipes_ingredients(string);
   void Read_orders(string);
   void read_catprds(string);
   void save_and_exit() const;//JZ B1
   double display_total_sales_for_menuitem(int menu_item_id); //JZ C3
   int add_recipe(int id, string chef, string instructions);//JZ C3
   map<Point,double> grafTotalSales();  //Project II Part D.1 M.O.
   	
  	
   //show functions added to support GUI interface
	string show_button(Msg_type);
	string show_title(string id); // DTC B.2

	template <typename T>
	string show_func(T t, string s)
	{
		string r;
		if(0==t.size())
			r = "No "+s+" Data Loaded\n";
		else
		{
			r += show_title(s);
			for(int i=0; i<t.size(); ++i)
			{
				r+=t[i].display();
				r+="\n";
			}
		}
		return r;
	}
private:
   //private data
	vector<Category> categories;
	vector<Menu_Item> menu_items;
	vector<Recipe> recipes;
	vector<Ingredient> ingredients;
	vector<Order> orders;
	vector<Order_Item> order_items;


	int get_file_info(ifstream& ist, string prompt, string fname);	//A.1,2,3 merge added a function for common code
	void read_file(ifstream& file, int num_rec, Rec_type ftype);
	string get_long_string(ifstream& ist);
};
} //end namespace ROMS

#endif //ROMS_MENU_H_