//Page replacement strategies main program
//Stephen Bassoli
//CSE 258
#include <fstream.h>
#include <stdio.h>
#include "stdafx.h"
#include "Mem.h"
#include "Token.h"

int main()
{
	char filename[100]; //= "hw3-1.txt";
	char ofilename[100]; //= "output.txt";
	char line[200];
	int choice;
	CString cline;
	int** jobPages = new int*[30];
	for (int x = 0 ; x < 30 ; x++)
		jobPages[x] = new int[200];
	int i = 0, j = 1;
	cout << "Enter the name of the input file: ";
	cin >> filename;
	cout << "Enter the name of the output file: ";
	cin >> ofilename;
	cout << "What kind of replacement strategy?\n1) Random\n2) FIFO\n3) LRU\n4) LFU\n";
	cin >> choice;
	ifstream infile(filename);
	ofstream outfile(ofilename);
	while (infile.getline(line,200,'\n'))
	{
		if (line[0] == 'J')
		{
			jobPages[i][0] = j - 1;
			i++;
			j = 1;
		}
		else
		{
			cline = line;
			CToken tok(cline);
			tok.SetToken(" ");
			tok.GetNextToken();
			jobPages[i][j] = atoi(tok.GetNextToken());
			j++;
		}
	}
	jobPages[i][0] = j - 1;
	jobPages[0][0] = i;
	Mem memory(jobPages,outfile);
	memory.loadJob();
	memory.runJobsWith(choice - 1);
	outfile << endl;
	for (int k = 1; k <= i ; k++)
	{
		outfile << "Number of steps for job " << k << ": " << memory.stepsPerJob[k] << endl;
		outfile << "Number of page faults for job " << k << ": " << memory.faultsPerJob[k] << endl << endl;
	}
	outfile << endl << "Total number of page faults: " << memory.numOfPageFaults << endl;
	cout << "Steps taken to complete: " << memory.step << endl;
	cout << "Total number of page faults: " << memory.numOfPageFaults << endl;
	outfile.close();
	return 0;
}