#include <stdlib.h>
#include <engine/logging.h>

char *itoa(i32 x) {
	const i32 size = (((i32)ceil(log10((f64)x)))+1) * sizeof(char);
	char *retval = (char*)malloc(size);
	if (retval == NULL) {
		perror("Failed to allocate memory for itoa");
		exit(EXIT_FAILURE);
	}
	sprintf(retval, "%d", x);
	return retval;
}

void _log(FILE *stream, const char *prefix, const char *fmt, va_list ap) {
	if (stream == NULL) {
		fprintf(stderr, "_log got NULL in stream argument\n");
		exit(EXIT_FAILURE);
	}
	fputs(prefix, stream);
	vfprintf(stream, fmt, ap);
}

void LOG(const char *fmt, ...) {
	va_list ap;
	va_start(ap, fmt);
	_log(stdout, "[" TERM_COLOR_BLUE "LOG" TERM_COLOR_RESET "] ", fmt, ap);
	va_end(ap);
	puts("");
}

void INFO_(const char *fmt, ...) {
	va_list ap;
	va_start(ap, fmt);
	_log(stdout, "[" TERM_COLOR_GREEN "INFO" TERM_COLOR_RESET "] ", fmt, ap);
	va_end(ap);
}

void INFO(const char *fmt, ...) {
	va_list ap;
	va_start(ap, fmt);
	_log(stdout, "[" TERM_COLOR_GREEN "INFO" TERM_COLOR_RESET "] ", fmt, ap);
	va_end(ap);
	puts("");
}

void __DEBUG(const char* file, const i32 line, const char* func, const char *fmt, ...) {
	va_list ap;

	const usize prefix_len = 1024;

	char *prefix = malloc(sizeof(char) * 1024);

  snprintf(prefix,
           prefix_len,
           "["TERM_COLOR_YELLOW"DEBUG"TERM_COLOR_RESET"] "
           "%s:%d <%s> ", file, line, func);

	va_start(ap, fmt);
	_log(stdout, prefix, fmt, ap);
	va_end(ap);

	free(prefix);
}

void WARN(const char *fmt, ...) {
	va_list ap;
	va_start(ap, fmt);
	_log(stderr, "[" TERM_COLOR_PURPLE "WARN" TERM_COLOR_RESET "] ", fmt, ap);
	va_end(ap);
	puts("");
}

void ERROR(const char *fmt, ...) {
	va_list ap;
	va_start(ap, fmt);
	_log(stderr, "[" TERM_COLOR_RED "ERROR" TERM_COLOR_RESET "] ", fmt, ap);
	va_end(ap);
	puts("");
}