//******************************************************************* 
//                                                                    
//  Program:  MacroSoft
//                                                                     
//  Author:  CS 1711, Section B
//                                                                    
//  Description:  This will be the wrapper for MacroSoft functions
//                                                                    
//  Date:  1999 Fall
//
//  Course Information: CS 1711, Section B
//
//  Filename: menu.cpp 
//                                                                    
//*******************************************************************


// declares the input/output operations
#include <iostream.h>

// inclusion of classes
#include "employee.h"
#include "computer.h"
#include "product.h"


void clrscr();

int writemenu();

// function to update Employee  salary
void salaryUpdate(Employee currentEmployee);


// A menu we'll expand...
void main()
{
	int choice, newRam;
	Employee emp1("12345", 10000, 11, 5, 1999);
	Computer myComputer; // call default constructor
	Computer niceComputer("12345", "PIII", 128);
	Product theProduct("56789", 300.0);

	clrscr();
	cout << "Welcome to Macrosoft..." << endl;

	do
	{
		choice = writemenu();  //initialize the user's choice
		switch (choice)
		{
			case 1 : salaryUpdate(emp1);
				     break;
			case 2 : {
				        cout << "How much memory?";
						cin >> newRam;
						myComputer.memUpgrade(newRam);
					 }; 
					 break;
			 case 3 : theProduct.writeProdInfo();
				     break;
			
            case 0  : cout << endl << "Exiting menu...";
					 break;
			default : 	cout << "invalid selection, try again";
		}  //end switch(choice)

	} while (choice != 0); //end do-while (choice)


	clrscr();
	cout << "Thank you for using the Macrosoft system" << endl << endl;

}

int writemenu()
{
	int choice;
	int count = 0;

	while (count < 2)
	{ 
		cout << endl; count++;
	}
	cout << "At the prompt input:" << endl << endl;
	cout << "    1 to update a salary." << endl;
	cout << "    2 to upgrade ram." << endl;
	cout << "    3 to write product info." << endl;

	cout << endl << endl << "    0 to exit." << endl;

	while (count < 11)
	{ 
		cout << endl; 
		count++;
	};

	cout << endl << endl << "Enter a menu selection>" << endl << endl;

	cin >> choice;

	return choice;

}


void clrscr()
{
	int lines = 25;
	for(int i = 0; i < 25; i++)
		cout << endl;

};

void salaryUpdate(Employee currentEmployee)
{
   double  change,                         // keyboard input
	       newSalary;                      // result of change


   cout << "The current salary is $"
        << currentEmployee.getSalary() << endl;
   
   // get value for update
   cout << "Enter the change in salary:" << endl;
   cin >> change; 

   // and echo it: 
   cout << endl;
   cout << "The value entered for the change: $" 
	    << change << endl; 

   // updates the current employee data
   newSalary = currentEmployee.getSalary() + change;
   currentEmployee.setSalary(newSalary);
   
   // the complete new information: 
   cout << endl;
   cout << "Current employee information:" << endl <<endl;
   currentEmployee.writeEmployee();

}