//----------------------------------------------------------------------
//
//	Name: Kieara Mowery
//	Due : Friday, December 5th
//	Date: Monday, December 1st
//	Purpose: To help the company tally their employee 
//	expense data and produce an Expense summary report. 
//
//----------------------------------------------------------------------

#include <iostream>
#include <iomanip>
using namespace std;

const int MAXEMPLOYEES = 30;

//---------------------------------------------------------------
//  Initialize Arrays: Sets the contants of both arrays to zero.
//---------------------------------------------------------------
//  Accepts: The expenses of each employee.
//  Returns: The expense counts 
//	     The expenses
//---------------------------------------------------------------

void InitializeArrays (float expenses[],
			  int expensecounts[],
			  int numemployees)
{
  for ( int i = 0; i < numemployees; i++ )
   {
         expensecounts[i] = 0;
	 expenses[i] = 0;
       
   }
}

//---------------------------------------------------------------
//  TallyExpenses: Inputs the "expense slips" from the data file
// 		   and tallies them into the arrays.
//---------------------------------------------------------------
 
void TallyExpenses ( float expenses[],
		       int expensecounts[],
		       int numemployees)
{
    int employeeid,
	numofexpense;   

    float anexpense;

    cin >> employeeid;

    while ( employeeid != -1 )
    {
     
      cin >> anexpense;
      expensecounts[employeeid]++;
      expenses[employeeid] += anexpense;
      cin >> employeeid;
    
    }
}
 

//---------------------------------------------------------------
//  ReportExpenses: Uses the arrays from the TallyExpenses to 
//		    Produce an Expense Summary Report.
//---------------------------------------------------------------
//  Accepts: The expenses
//	     The expense counts
//	     The number of employees
//  Returns: Nothing until called in Main.
//---------------------------------------------------------------

void ReportExpenses ( float expenses[],
		        int expensecounts[],
	  	  	int numemployees)

{
   int totalnumexp = 0,
       minid,
       employeeid;


   float avgexpense,
	 minexp = 50000,
	 totalexp = 0;
   
   cout << "\n                                 Expense Summary Report";
   cout << "\n\n";
   cout << "       Employee ID        # of Expenses        Expense Total       Average Expense";
   cout << endl;

   for ( int i = 0; i < numemployees; i++ )
   {
      cout << "\n" << setw(12) << i;
      cout << fixed << setprecision(2);

      cout << setw(22) << expensecounts[i];
      cout << setw(16) << "$" << setw(10) << expenses[i];
      
      totalexp += expenses[i];  
      totalnumexp += expensecounts[i];      
      avgexpense = expenses[i] / expensecounts[i];
      cout << setw(10) << " $" << setw(10) <<  avgexpense;
      
      if ( expenses[i] <  minexp )
      {
	 minexp = expenses[i];
         minid = i; 
      }
}
   
      cout << "\n\n";    
      cout << setw(12) << "Totals" ;
      cout << setw(22) << totalnumexp;
      cout << setw(16) << "$" << "    " << totalexp;
      cout << "\n\n        "  << "Congratulations to employee number " << minid;
      cout << " for having the lowest expenses! ";

}	
 
//---------------------------
//	Main Function
//---------------------------

int main ()
{

// ---- Variables

    int numemployees,			// Employees to be input.
        expensecounts[MAXEMPLOYEES];	// The number of expenses.

    float expenses[MAXEMPLOYEES];	// The expenses of each employee.

// ---- Get the number of employees

    cin >> numemployees;

// ---- First Initialize the Arrays and find the total.

InitializeArrays ( expenses, expensecounts, numemployees );

// ---- Tally Expenses 

TallyExpenses ( expenses, expensecounts, numemployees );

// ---- Produce the Expenses Report

ReportExpenses ( expenses, expensecounts, numemployees );

cout << "\n\n";
return 0;

}