/*                    SUPER MARKET SYSTEM

*/
#include<conio.h>
#include<stdio.h>
#include<iostream>
#include<cstring>
using namespace std;
class product
{
 int pno;
 char name[8];
 int price,qty,tax,dis;
 int flag,no,found;
 public:
void write_product();
void display_all();
void display_sp(int);
void modify_product();
void delete_product();
void menu();
void place_order();
void admin_menu();

	void create_product()
	{
	 cout<<"\nPlease Enter The Product No. of The Product ";
	 cin>>pno;
	 cout<<"\n\nPlease Enter The Name of The Product ";
	 cin>>name;
	 cout<<"\nPlease Enter The Price of The Product ";
	 cin>>price;
	 cout<<"\nPlease Enter The Discount (%) ";
	 cin>>dis;
	 }
	void show_product()
	{
	  cout<<"\nThe Name of The Product : ";
	 cin>>name;
	 cout<<"\nThe Product No. of The Product : "<<pno;
	 cout<<"\nThe Price of The Product : "<<price;
	 cout<<"\nDiscount : "<<dis<<endl;
	 }
  int retpno()
  {return pno;}

  float retprice()
  {return price;}

  char* retname()
    {return name;}

  int retdis()
  {return dis;}
};
product pr;
void info(){
cout<<"##################################################################\n";
cout<<"##################################################################\n";
cout<<"###                                                            ###\n";
cout<<"###                      SUPER MARKET SYSTEM                   ###\n";
cout<<"###                                                            ###\n";
cout<<"##################################################################\n";
cout<<"##################################################################\n\n";
cout<<"SUPER MARKET";
 cout<<" BILLING";
 cout<<" PROJECT";
cout<<"\n\nMADE BY : G1 SOFTWARE ENGINEERING";
 cout<<"\n\nUNIVERSITY : ARBA MINCH UNIVERSITY INSTITUTE OF TECHNOLOGY";

}
int main()
{
  char ch;
info();
	  cout<<"\n\n\n\tMAIN MENU";
	  cout<<"\n\n\ta. CUSTOMER";
	  cout<<"\n\n\tb. ADMINISTRATOR";
	  cout<<"\n\n\tc. EXIT";
	  cout<<"\n\n\tPlease Select Your Option (a-c) ";
	  cin>>ch;
  switch(ch)
	  {
		 case 'a':
			  pr.place_order();
			   getch();
			   break;
		  case 'b':
		     pr.admin_menu();
			    break;
		  case 'c':
		      break;
		  default :cout<<"invalid option";}
    return 0;
}
void product::write_product()
{
    char rd;
    pr.create_product();
    cout<<"\n\nThe Product Has Been Created \n";
pr.admin_menu();

    getch();
   }
//***************************************************************
//    	function to read all records
//****************************************************************
void product::display_all()
{
    cout<<"\n\n\n\t\tDISPLAY ALL RECORD !!!\n\n";
     pr.show_product();
	 cout<<"\n\n====================================\n";
     getch();
}
//***************************************************************
//    	function to read specific record
//****************************************************************
void product::display_sp(int n)
{
   pr.flag=0;
	 if(pr.retpno()==n)
		{
		 pr.show_product();
		 pr.flag=1;
		}
if(pr.flag==0)
 cout<<"\n\nrecord not exist";
    getch();
}

//***************************************************************
//    	function to modify record
//****************************************************************
void product::modify_product()
{
    pr.no,pr.found=0;
    cout<<"\n\n\tTo Modify ";
    cout<<"\n\n\tPlease Enter The Product No. of The Product";
    cin>>pr.no;
	    if(pr.retpno()==pr.no)
		   {
		    pr.show_product();
		    cout<<"\nPlease Enter The New Details of Product"<<endl;
		    pr.create_product();
		    int pos=-1*sizeof(pr);
		    cout<<"\n\n\t Record Updated";
		    pr.found=1;
		    pr.admin_menu();
		   }
    if(pr.found==0)
    cout<<"\n\n Record Not Found ";
    getch();
}
//***************************************************************
//    	function to delete record
//****************************************************************
void product::delete_product()
   {
    pr.no;
    cout<<"\n\n\n\tDelete Record";
    cout<<"\n\nPlease Enter The product no. of The Product You Want To Delete";
    cin>>pr.no;
    cout<<"\n\n\tRecord not found..";
    getch();
    }
//***************************************************************
//    	function to display all products price list
//****************************************************************
    void product::menu()
    {
       cout<<"ERROR!!! FILE COULD NOT BE OPEN\n\n\n Go To Admin Menu to create File";
       cout<<"\n\n\n Program is closing ....";
       getch();

     cout<<"\n\n\t\tProduct MENU\n\n";
	  cout<<"====================================================\n";
	  cout<<"P.NO.\t\tNAME\t\tPRICE\n";
	  cout<<"====================================================\n";
	   cout<<pr.retpno()<<"\t\t"<<pr.retname()<<"\t\t"<<pr.retprice()<<endl;
	   }
//***************************************************************
//    	function to place order and generating bill for Products
//****************************************************************
void product::place_order()
   {
       char bn;
    int order_arr[50],quan[50],c=0;
    float amt,damt,total=0;

    menu();
    cout<<"\n============================";
    cout<<"\n    PLACE YOUR ORDER";
    cout<<"\n============================\n";
    cout<<"enter the name of the product \n";
    cin>>bn;

	 cout<<"\n\nEnter The Product No. Of The Product : ";
	 cin>>order_arr[c];
	 cout<<"\nQuantity in number : ";
	 cin>>quan[c];
	 cout<<"\nDo You Want To Order Another Product ? (y/n)";

    cout<<"\n\nThank You For Placing The Order";getch();
      cout<<"\n\n********************************INVOICE************************\n";
      cout<<"\nPr No.\tPr Name\tQuantity \tPrice \tAmount \tAmount after discount\n";
      for(int x=0;x<=c;x++)
	{
			if(pr.retpno()==order_arr[x])
				{
				 amt=pr.retprice()*quan[x];
				 damt=amt-(amt*pr.retdis()/100);
				 cout<<"\n"<<order_arr[x]<<"\t"<<pr.retname()<<"\t"<<quan[x]<<"\t\t"<<pr.retprice()<<"\t"<<amt<<"\t\t"<<damt;
				 total+=damt;
				}


	 }
       cout<<"\n\n\t\t\t\t\tTOTAL = "<<total;
    getch();
    pr.admin_menu();
    }


//***************************************************************
//    	ADMINSTRATOR MENU FUNCTION
//****************************************************************
void product::admin_menu()
{
  char ch2;
  cout<<"\n\n\n\tADMIN MENU";
  cout<<"\n\n\ta.CREATE PRODUCT";
  cout<<"\n\n\tb.DISPLAY ALL PRODUCTS";
  cout<<"\n\n\tc.QUERY ";
  cout<<"\n\n\td.MODIFY PRODUCT";
  cout<<"\n\n\te.DELETE PRODUCT";
  cout<<"\n\n\tf.VIEW PRODUCT MENU";
  cout<<"\n\n\tg.BACK TO MAIN MENU";
  cout<<"\n\n\tPlease Enter Your Choice (a-g) ";
  cin>>ch2;
  switch(ch2)
  {
    case 'a':
	      pr.write_product();
	      break;
    case 'b': pr.display_all();break;
    case 'c':
	       int num;

	       cout<<"\n\n\tPlease Enter The Product No. ";
	       cin>>num;
	       pr.display_sp(num);
	       break;
      case 'd': pr.modify_product();break;
      case 'e': pr.delete_product();break;
      case 'f': pr.menu();
		getch();
      case 'g': pr.admin_menu();
       break;
      default: cout<<"invalid option";
   pr.admin_menu();
  }
}
//***************************************************************
//    			END OF PROJECT
//***************************************************************