// Ryan Brown
// Hw 7
// Client Program

#include <iostream>
using std::cerr;
using std::endl;
using std::cout;
using std::cin;
using std::ios;
#include <iomanip>
using std::setw;
#include <fstream>
using std::ofstream;
#include <cstdlib>

#include "PersonData.h"  // ClientData class definition 

int main() {
   int idNumber;
   char lastName[15];
   char firstName[15];
   char age [4];
   int i = 0;

   ofstream outNameAge( "nameage.dat", ios::binary );
   // exit program if ofstream cannot open file
   if ( !outNameAge ) {
      cerr << "File could not be opened." << endl;
      exit( 1 );
   } // end if
   cout << "Enter account number "
        << "(1 to 100, 0 to end input)\n? ";
   // require user to specify account number
   PersonData client;
   cin >> idNumber;
   client.setidNumber( idNumber );
   // user enters information, which is copied into file
   while ( client.getidNumber() > 0 && client.getidNumber() <= 100 ) {
      // user enters last name, first name and age
      cout << "Enter lastname, firstname, age\n? ";
      cin >> setw( 15 ) >> lastName;
      cin >> setw( 15 ) >> firstName;
      cin >> setw( 4 ) >> age;
      // set record lastName, firstName and balance values
      client.setLastName( lastName );
      client.setFirstName( firstName );
      client.setAge( age );
      // seek position in file of user-specified record
      outNameAge.seekp( ( client.getidNumber() - 1 ) * 
         sizeof( PersonData ) );
      // write user-specified information in file
      outNameAge.write( 
         reinterpret_cast< const char * >( &client ),
         sizeof( PersonData ) );
      // enable user to specify another id number
      i++;

	  cout << "Enter id number\n? ";
      cin >> idNumber;
      client.setidNumber( idNumber );
	  
	  if (i > 3) {
		  break;
	  }
   } // end while
   
   return 0;
} // end main