/*
 * logger.cpp
 *
 *  Created on: Feb 3, 2016
 *      Author: Philipp Hinz
 */

#include <stdio.h>
#include <stdarg.h>
#include <time.h>
#include "global.h"
#include "logger.h"

int lastlog = 0;

/**
 * Prints a timestamp
 * @param stream target stream (stdout, stderr)
 */

void logger_print_time(_IO_FILE* stream) {
	time_t timer;
	char buffer[26];
	struct tm* tm_info;

	time(&timer);
	tm_info = localtime(&timer);

	strftime(buffer, 26, "%d-%m-%Y %H:%M:%S", tm_info);
	fprintf(stream, "[%s] ", buffer);
}

/**
 * Outputs the printf like formatted message to stderr and colorizes it
 * @param format printf formatted string
 */

void logger_error(const char* format, ...) {
	pthread_mutex_lock(&mutex);
	va_list args;
	fprintf( stderr, KRED);
	if (optDate)
		logger_print_time(stderr);
	fprintf( stderr, "Error: ");
	va_start(args, format);
	vfprintf( stderr, format, args);
	va_end(args);
	fprintf( stderr, KNRM);
	lastlog = LOG_ERROR;
	pthread_mutex_unlock(&mutex);
}

/**
 * Resets the logger to prevent the previous line being overdrawn.
 * Call after custom printf
 */

void logger_reset() {
	lastlog = 0;
}

/**
 * prints the message to stdout and formats it
 * @param verboselevel minimum verbose level for output
 * @param logtype type of logmessage for coloring
 * @param format printf formatted string
 */

void logger(logger_verbose_t verboselevel, logger_type_t logtype,
		const char* format, ...) {
	if (verbose < verboselevel)
		return;
	pthread_mutex_lock(&mutex);
	switch (logtype) {
	case LOG_CAN:
		printf(KBOLD);
		break;
	case LOG_OK:
		printf(KGRN);
		break;
	case LOG_WARN:
		printf(KYEL);
		break;
	case LOG_ERROR:
		printf(KRED);
		break;
	case LOG_ERRORC:
		if (lastlog == LOG_ERRORC)
			printf(CLEARLINE);
		break;
	case LOG_INFO:
	default:
		break;
	}
	if (optDate)
		logger_print_time(stdout);
	va_list args;
	va_start(args, format);
	vprintf(format, args);
	va_end(args);
	if (logtype > 0)
		printf(KNRM);
	lastlog = logtype;
	pthread_mutex_unlock(&mutex);
}

/**
 * prints the message to stdout
 * @param verboselevel minimum verbose level for output
 * @param format printf formatted string
 */

void logger(logger_verbose_t verboselevel, const char* format, ...) {
	if (verbose < verboselevel)
		return;
	pthread_mutex_lock(&mutex);
	if (optDate)
		logger_print_time(stdout);
	va_list args;
	va_start(args, format);
	vprintf(format, args);
	va_end(args);
	lastlog = 0;
	pthread_mutex_unlock(&mutex);
}