#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <getopt.h>

#include "parse.h"
#include "analyze.h"

void read_args(int argc, char *argv[], struct parse_opts *opts)
{
	int optind = 0, c;
	static struct option long_options[] = {
		{ .val = 'p', .name = "pid", .has_arg = 1, },
		{ .val = 'm', .name = "map", .has_arg = 1, },
	};
	char short_options[] = "p:m:";
	opts->parse_mask = 0;

	while (1) {
		c = getopt_long(argc, argv, short_options, long_options,
				&optind);

		if (c == -1)
			break;

		printf("%c: %s\n", c, optarg);
		switch (c) {
		case 'p':
			opts->pid = atoi(optarg);
			opts->parse_mask |= PARSE_PID;
			break;
		case 'm':
			opts->parse_mask |= PARSE_MAP_NAME;
			opts->map_name = optarg;
			break;
		}
	}
}

int main(int argc, char *argv[])
{
	struct pageframe pf;
	struct process *process_list = NULL;
	struct parse_opts opts;

	if (argc < 3) {
		printf("A pid needs to be given as an argument\n");
		return 1;
	}

	read_args(argc, argv, &opts);

	memset(&pf, 0, sizeof(pf));

	scan_all_pids(&pf, &process_list, &opts);
	print_pid_stats(&pf, process_list);
	print_page_stats(&pf);

	return 0;
}