#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <time.h>
#include <assert.h>

#include "log.h"
#include "main.h"

static FILE *logFile;

int initLog(char *name)
{
	logFile = fopen(name, "a");

	if( logFile == NULL )
	{
		fprintf(stderr, _("Opening logfile \"%s\" failed!\n"), name);
		return -1;
	}
#ifdef DEBUG
	printf(_("I use logfile: \"%s\")\n"), name);
#endif
	addToLog(LOG_INF, "open log file");

	return 0;
}

void addToLog(int type, char *msg)
{
	char str[STR_LOG_SIZE];
	struct tm *tm_struct;
	time_t currentTime;
	char *str_type;

	currentTime = time(NULL);
	tm_struct = localtime(&currentTime);

	switch( type )
	{
		case LOG_INF : str_type = "INF"; break;
		case LOG_DBG : str_type = "DBG"; break;
		case LOG_WRN : str_type = "WRN"; break;
		case LOG_ERR : str_type = "ERR"; break;
		default :
			assert( ! _("Really bad log value!") );
		break;
	}

	sprintf(str, "(%02d-%02d-%02d %02d:%02d:%02d) %s %s\n",
		1900+tm_struct->tm_year, tm_struct->tm_mon, tm_struct->tm_mday,
		tm_struct->tm_hour, tm_struct->tm_min, tm_struct->tm_sec,
		str_type, msg);

	fprintf(logFile, str);

	fflush(logFile);
}

void quitLog()
{
	addToLog(LOG_INF, "close log file");
	fclose(logFile);
}