/*
 * CSI2131 Winter 2005
 *
 * Assignment#2 Solution : The main function
 *
 * Shantanu Das 
 *
 * This is the main program that inputs the filenames from command line, 
 * opens the files and creates objects of the other classes.
 * 
 * The following classes are used : Record, SimpIndex, DataFile, and Operations
 */


#include "Index.h"
#include "DataFile.h"
#include "IndexedDatafile.h"
#include <iostream>
#include <fstream>
using namespace std;


// main method ... uses command line arguments

int main(int argc,char* argv[])
{
   
  fstream dfile;           // datafile stream
  fstream opfile;		  // operations file stream
  
  // check for the correct number of arguments.
  if(argc!=3){
	  cerr << "USAGE: " << argv[0] << " <Data-file> <Operations-file>" << endl;
	  return 1;
  }

  // open the file for input
  dfile.open(argv[1], ios::in|ios::out|ios::binary|ios::app);

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

  // open the output file in binary mode
  opfile.open(argv[2], ios::in);

  // Check to make sure that we could open the file properly!
  if (opfile.fail()) {
    cerr << "Could not open file ";
    cerr << argv[2];
    cerr << ".\n";
    return 1;
  }

  int num = 0;
  DataFile df(dfile);
  IndexedDatafile indf(df);

  num = indf.createIndex();

  cout << "Executing Operations from "<< argv[2] << endl;
  num = indf.executeOp(opfile);
  cout << num << " Operations executed successfully !" << endl;

  dfile.close();            // Close the files
  opfile.close();

  // Program completed successfully! */
  return 0;
}