/* Written by Jeff Souza at the University of Ottawa
 * 
 * 
 * CS 3050 Lab 2
 * 
 * 
 * 
 */

#include <iostream>
#include <string>
#include <fstream>
#include <iomanip>     // for setw, setiosflags, etc...
using namespace std;

// the number of records to read in
const int num_records = 10;
// the number of fields in each record
const int num_fields = 5;
// the length of the record length indicator
const int length_ind_size = 2;

// output length for each field 
const int output_lengths[] = {12,12,5,3,4};


// read a record by its RRN
string readRecordbyRRN(int, istream&);

// write a record using the report format
void writeRecord(string, ostream&);



// main method
int main( )
{
  
  fstream input;                      // input stream
  fstream output;                     // output stream
  string rec;

  char inputname[40];                 // input filename
  char outputname[40];                // output filename

  cout << "What is the input file name? ";
  cin >> inputname;

  cout << "What is the output (report) file name? ";
  cin >> outputname;

  
  // open the input file for input, of course
  input.open(inputname, ios::in);

  // Check to make sure that we could open the files properly!
  if (input.fail()) {
    cerr << "Could not open file ";
    cerr << inputname;
    cerr << ".\n";
    return 1;
  }


  // open the output for output
  output.open(outputname, ios::out);

  // outout the header of the report
  output << "LAST NAME    FIRST NAME   MONTH DAY YEAR" << endl;
  output << "------------ ------------ ----- --- ----" << endl;

  // reads records in reverse order and copy the in output 
  for (int i=num_records;i>0; i--){
        rec = readRecordbyRRN(i, input);
        writeRecord(rec, output);  
  }

  cout << endl << "Program completed successfully !!" << endl;
  cout << "Check output file out." << endl << endl;

  input.close();
  output.close();

  return 0;
}

// read a student from a istream by its RRN
string readRecordbyRRN(int rrn, istream& input)
{
  
    // INCLUDE YOUR CODE HERE

    return "";
}

// write a student in the ostream
void writeRecord(string r, ostream& output)
{
    
     // INCLUDE YOUR CODE HERE

}