#include <stdlib.h>
#include <stdio.h>
#include "cachelab.h"

int VERBOSE = 0;

void print_usage()
{
	printf("Usage: ./csim [-hv] -s <number> -E <number> -b <number> -t <file>\n"
		   "Options:\n"
		   "  -h  Print this help.\n"
		   "  -v  Display trace info.\n"
		   "  -s <number> The number of sets is the base-2 logarithm of this argument.\n"
		   "  -E <number> Associativity (lines per set).\n"
		   "  -b <number> Block size in bits is the base-2 logarithm of this argument.\n"
		   "  -t <file>   Name of the file to read a valgrind trace from.");
	exit(0);
}

int parse_int_arg(char* arg)
{
	char* end;
	int i = strtol(arg, &end, 0);
	if (!i || *end != '\0')
	{
		printf("Invalid argument \"%s\"\n", arg);
		print_usage();
	}
	return i;
}

int main(int argc, char* argv[])
{
	int set_bits = 0, lines = 0, block_bits = 0;
	char* filename;
	int ii;
	for (ii = 0; ii < argc; ii++)
	{
		switch (argv[ii][1])
		{
		case 'h':
			//print_usage();
			break;
		case 'v':
			VERBOSE = 1;
			break;
		case 's':
			set_bits = parse_int_arg(argv[ii+1]);
			break;
		case 'E':
			lines = parse_int_arg(argv[ii+1]);
			break;
		case 'b':
			block_bits = parse_int_arg(argv[ii+1]);
			break;
		case 't':
			filename = argv[ii+1];
			break;
		}
	}

	printf("Arguments: %d, %d, %d, %d, %s\n", set_bits, lines, block_bits, VERBOSE, filename);
	if(!set_bits|| !lines || !block_bits || !filename)
		print_usage();

	printSummary(0, 0, 0);
	return 0;
}