logging.h

#pragma once

#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <stdbool.h>

#define RED "\x1b[31m"
#define GREEN "\x1b[32m"
#define YELLOW "\x1b[33m"
#define RESET "\x1b[0m"

// this flag determines whether these functions actually print anything
bool verbose = true;
int trace_fd = 2;
bool colored = false;

// pass through to printf that can be disabled by the verbose flag [white]
void trace_print(char *color, char *msg, ...) {
	va_list args;

	if (!verbose) return;

	va_start(args, msg);

	if (colored) dprintf(trace_fd, "%s", color);
	vdprintf(trace_fd, msg, args);
	if (colored) dprintf(trace_fd, "%s", RESET);
}

// logs an error to the console and quits - only for extreme errors [red]
void error(char *msg, ...) {
	va_list args;

	va_start(args, msg);

	printf("%s[!] Error: ", RED);
	vprintf(msg, args);
	printf("%s\n", RESET);
	exit(1);
}

// logs an info [green]
void info(char *msg, ...) {
	va_list args;

	if (!verbose) return;

	va_start(args, msg);

	printf("%s[+] ", GREEN);
	vprintf(msg, args);
	printf("%s\n", RESET);
}

// logs a warning [yellow]
void warn(char *msg, ...) {
	va_list args;

	if (!verbose) return;

	va_start(args, msg);

	printf("%s[-] ", YELLOW);
	vprintf(msg, args);
	printf("%s\n", RESET);
}