/* Based on the post date and a proximo type, compute the month and
* year this is due. The actual day is filled in below.
*
* A proximo billing term has multiple parameters:
* * due day: day of the month the invoice/bill will be due
* * cutoff: day of the month used to decide if the due date will be
* in the next month or in the month thereafter. This can be
* a negative number in which case the cutoff date is relative
* to the end of the month and counting backwards.
* Eg: cutoff = -3 would mean 25 in February or 28 in June
*
* How does it work:
* Assume cutoff = 19 and due day = 20
*
* * Example 1 post date = 14-06-2010 (European date format)
* 14 is less than the cutoff of 19, so the due date will be in the next
* month. Since the due day is set to 20, the due date will be
* 20-07-2010
*
* * Example 2 post date = 22-06-2010 (European date format)
* 22 is more than the cutoff of 19, so the due date will be in the month
* after next month. Since the due day is set to 20, the due date will be
* 20-02-2010
*
*/
static void
compute_monthyear (const GncBillTerm *term, Timespec post_date,
int *month, int *year)
{
int iday, imonth, iyear;
int cutoff = term->cutoff;
g_return_if_fail (term->type == GNC_TERM_TYPE_PROXIMO);
gnc_timespec2dmy (post_date, &iday, &imonth, &iyear);
if (cutoff <= 0)
cutoff += gnc_timespec_last_mday (post_date);
if (iday <= cutoff)
{
/* We apply this to next month */
imonth++;
}
else
{
/* We apply to the following month */
imonth += 2;
}
if (imonth > 12)
{
iyear++;
imonth -= 12;
}
if (month) *month = imonth;
if (year) *year = iyear;
}
/* The GDate setter functions all in the end use g_date_set_time_t,
* which in turn relies on localtime and is therefore subject to the
* 2038 bug.
*/
GDate timespec_to_gdate (Timespec ts)
{
GDate result;
gint day, month, year;
g_date_clear (&result, 1);
gnc_timespec2dmy (ts, &day, &month, &year);
g_date_set_dmy (&result, day, static_cast<GDateMonth>(month), year);
g_assert(g_date_valid (&result));
return result;
}
static gboolean
check_conversion (const char * str, Timespec expected_ts)
{
Timespec ts;
int day, month, year;
GDate d1, d2;
ts = gnc_iso8601_to_timespec_gmt (str);
// We test the conversion to GDate against the timespec2dmy
// conversion, and also the conversion back to timespec and again
// to GDate so that it is still the original GDate
gnc_timespec2dmy(ts, &day, &month, &year);
d1 = timespec_to_gdate(ts);
d2 = timespec_to_gdate(gdate_to_timespec(d1));
if ((g_date_compare(&d1, &d2) != 0)
|| (g_date_get_day(&d1) != day)
|| (g_date_get_month(&d1) != month)
|| (g_date_get_year(&d1) != year))
{
fprintf (stderr,
"\nmis-converted \"%s\" to GDate. "
"Got d1(Y-M-D) = %i-%i-%i, d2(Y-M-D) = %i-%i-%i\n",
str, year, month, day,
g_date_get_year(&d2), g_date_get_month(&d2), g_date_get_day(&d2));
failure ("misconverted timespec");
return FALSE;
}
if ((expected_ts.tv_sec != ts.tv_sec) || (expected_ts.tv_nsec != ts.tv_nsec))
{
fprintf (stderr,
"\nmis-converted \"%s\" to %" G_GUINT64_FORMAT ".%09ld seconds\n"
"\twas expecting %" G_GUINT64_FORMAT ".%09ld seconds\n",
str, ts.tv_sec, ts.tv_nsec,
expected_ts.tv_sec, expected_ts.tv_nsec);
failure ("misconverted timespec");
return FALSE;
}
success ("good conversion");
return TRUE;
}
