/*           Edward Kretchmer                       Student #P64-80-1498

             Problem #340 - Assignment #3           Due Date 6/12/07

             COP-1220 T/TH 6:00PM

             

             This program will save to a file a report of Customer Number, 

             Kilowatts Used, and Payment Due.

             The program will also save to a file a report of Total Kilowatts

             Used, Total Payment Due, and Number of Customers Entered.



             ------------------------------------------------------

             INPUT                                  OUTPUT

             -----                                  ------

             Customer Number                        Program Description and

             Kilowatts Used                         Instructions

                                                    Customer Number

                                                    Kilowatts Used

                                                    Payment Due

                                                    Total Kilowatts Used

                                                    Total Payments Due

                                                    Number of Customers Entered

             ------------------------------------------------------

*/



//*** Program preprocessors, libraries, and header files



#include <iostream>                                 // Cout and Cin stream

#include <iomanip>                                  // Cout and Cin Options

#include <fstream>                                  // File Stream



using namespace std;                                // Eliminates need for std::



int main()      //***** BEGINNING OF PROGRAM LOGIC *****



{

//*** Declaration and initialization of program variables

      string customer_number;

      int kilowatts = 0;

      int kilowatts_total = 0;

      int counter = 0;

      double cost = 0;

      double cost_total = 0;



      cout << fixed << showpoint                       // Fixed and show decimal

      << setprecision(2);                              // Set decimal places to 2

     

      ofstream outdata;                                // File OUT Stream



      outdata << fixed << showpoint                    // Fixed and Show Decimal

      << setprecision(2);                              // Set Decimal places to 2



      outdata.open("e:/COP1220/Prob 340 Power Company/p340.txt"); 



      system ("cls");                                  // Clear Screen



      cout << "============================================================\n\n"

      << " THIS PROGRAM SAVES A LISTING OF POWER COMPANY TRANSACTIONS \n"

      << " INCLUDING:\n"

      << " - CUSTOMER NUMBER\n"

      << " - KILOWATTS USED\n"

      << " - PAYMENT DUE\n"      

      << "=============================================================\n\n"

      << "After all customers are inputted, the Billing Report will display\n"

      << "and save:\n\n"

      << " - Number of Customers Entered\n"

      << " - Total Kilowatts Used\n"

      << " - Total Payments Due\n\n"

      << "The report will be saved to the file: p340.txt\n\n"

      << "NOTE:  When finished entering Customer Transactions, enter the\n"

      << "       letters 'EOF' when prompted for an Customer Number.\n\n\n\n";

      

      outdata << setw (52) << "North Campus Power Company\n\n"

      << setw(22) << "Customer" << setw(23) << "Kilowatts\n" 

      << setw(20) << "Number" << setw(21) << "Used" << setw(24) << "Payment\n";

       

      cout << "Enter 5-digit Customer Number (or EOF to run report): ";

      cin >> customer_number; 

	  cin.ignore(1024, '\n');	  // Primer for loop

       

// *** BEGINNING OF LOOP ***       

       while (customer_number != "EOF")

       

             {



             cout << "Enter Kilowatts Used: ";

             cin >> kilowatts;

                  

             if (kilowatts >= 301)

                  cost = ((.0765 * (kilowatts - 300)) + 23.58);

                  

                  else if (kilowatts >= 51 && kilowatts <= 300)

                       cost = ((.0943 * (kilowatts - 50)) + 6.15);

             

             else

                  cost = (kilowatts * .123);

                  

             cost = (cost < 5.7) ? cost = 5.7 : cost = cost;

             

             kilowatts_total+= kilowatts;

             cost_total+= cost;

             

             counter++;

                  

             outdata << setw(20) << customer_number <<setw(22) << kilowatts

             << setw(22) << cost << "\n";

                                 

             cout << "Enter 5-digit Customer Number (or EOF to run report): ";

             cin >> customer_number;

                  

             }

              

// *** END OF LOOP ***



// *** DISPLAY TOTALS TO SCREEN AND SAVE TO FILE ***



       cout << "\n\nThe Employee Transactions you have just entered and the\n"

       << "Customer Usage Report will be saved to the file: p340.txt\n\n";

                

       system ("pause");

       system ("cls");

       

       cout << setw(13) << "Number of" << setw(19) << "Total" << setw(21)

       << "Total\n" << setw(15) << "Customers: " << counter << setw(22)

       << "Kilowatts: " << kilowatts_total << setw(18) << "Payments: $ "

       << setw(6) << cost_total << "\n\n";



       outdata << "\n\n" << setw(13) << "Number of" << setw(19) << "Total"

       << setw(21) << "Total\n" << setw(15) << "Customers: " << counter

       << setw(22) << "Kilowatts: " << kilowatts_total << setw(17)

       << "Payments: $" << setw(6) << cost_total << "\n\n";   

       

       outdata.close();                                            // Close File



       system ("pause");                                      

       return 0;

       

}