#include <stdio.h>
#include <string.h>
#include <time.h>
#include <sys/stat.h>
#include "types.h"
#include "info.h"

string InfoGetFileName (string path)
{
    string t = strrchr(path, '\\');

    if (t == NULL) return path;
    return (t + 1);
}

uint32 InfoGetFileSize (string path)
{
    FILE* f = fopen (path, "r");
    if (!f) return 0;

    fseek(f, 0, SEEK_END);
    uint32 ret = (uint32) ftell(f);
    fclose (f);

    return ret;
}

TimeSystem ConvertTimeToTimeSystem (struct tm t)
{
    TimeSystem sys = {0,0};

    uint32 year = 1900 + t.tm_year - 1;
    uint32 yday = t.tm_yday;

    sys.Time = (t.tm_hour * 3600000) + (uint32)(t.tm_min * 60000) + (uint32)(t.tm_sec * 1000);
    sys.Date = (yday) + (uint32)((year/4) * (365*4 + 1)) + (uint32)(year%4 * 365);

    return sys;
}

TimeSystem InfoGetTime ()
{
    time_t now = time(NULL);
    struct tm* t = gmtime(&now);
    return ConvertTimeToTimeSystem(*t);
}

TimeSystem InfoGetFileCreated(string file)
{
    struct tm* time;
    struct stat attrib;

    stat(file, &attrib);
    time = gmtime(&(attrib.st_ctime));

    if (time == NULL) return InfoGetTime();
    return ConvertTimeToTimeSystem(*time);
}

TimeSystem InfoGetFileModified(string file)
{
    struct tm* time;
    struct stat attrib;

    stat(file, &attrib);
    time = gmtime(&(attrib.st_mtime));

    if (time == NULL) return InfoGetTime();
    return ConvertTimeToTimeSystem(*time);
}