#include <stdio.h>
#include <string.h>
#include <stdbool.h>

int curgroup = 0; // To know where 8 group 
int dumpgroup = 0; // To know where newline should be
int hexnum = 1; // To put space after every second hex number
bool canonical = true; // -C flag

int chardump(char *data, int start_of_line, int end_of_line /* to display only 16 chars */) {
	for (int i=0; i < end_of_line; i++) {
		if (data[i] == "\0" || data[i] == ' ')
			printf(".");
		else 
			printf("%c", data[i]);
	}
	return 0;
}


int hexdump(char *data) {
	//printf("%s\n", data); // FIXME
	int cur_start_of_line = 0;
	for (int i=0; i < strlen(data); i++) {
		hexnum++;
		if (data[i] == '\0') 
			printf("00");
		else {
			if (!canonical)
				printf("%02x", data[i]);
			else {
				printf("%02x ", data[i]);
				//dumpgroup++;
			}
		}
		if (hexnum%2 && hexnum >= 2) {
			if (!canonical) 
				printf(" ");
			curgroup++;
		}
		if (curgroup == 4) {
			if (canonical) {
				printf("  ");
			}
			curgroup = 0;
			dumpgroup++;
		}
		if (dumpgroup == 2) {
			dumpgroup = 0;
		//	printf("|");
		//	chardump(data, cur_start_of_line, hexnum);
		//	printf("|");
		//	cur_start_of_line = i;
			printf("\n");
		}
	}
	//printf("\n"); // FIXME
}

int main() {
	FILE *infile = fopen("../tests/test2.bin", "r");//fopen("test.bin", "r");
	char data[50];
	while (fgets(data, 50, infile) != NULL) {
		hexdump(data);
	}
	printf("\n"); // FIXME
	fclose(infile);
}