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/* See LICENSE file for copyright and license details. */
#include "common.h"
static const int days_in_month[] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
int
get_age(struct libcontacts_birthday *bday, const struct tm *now)
{
int age = now->tm_year + 1900 - (int)bday->year;
if (now->tm_mon + 1 < bday->month)
age -= 1;
else if (now->tm_mon + 1 == bday->month)
age -= (now->tm_mday < bday->day);
return age;
}
void
print_birthdate(struct libcontacts_birthday *bday, const struct tm *now)
{
int age, days = 0, y, m, d;
if (bday->year)
printf("%04u-", bday->year);
else
printf("??""??""-");
if (bday->month) {
printf("(%02u)%.3s-", (unsigned)bday->month,
&"JanFebMarAprMayJunJulAugSepOctNovDec"[3 * ((bday->month - 1) % 12)]);
} else {
printf("(??"")??""?-");
}
if (bday->day)
printf("%02u", (unsigned)bday->day);
else
printf("??");
if ((bday->month - 1) % 12 == 1 && bday->day == 29) {
bday->day -= bday->before_on_common;
printf(" (%s on common years)", bday->before_on_common ? "(02)Feb-28" : "(03)Mar-01");
}
if (bday->year && bday->month && bday->day) {
age = get_age(bday, now);
y = (int)bday->year - 1900;
m = (int)bday->month - 1;
d = (int)bday->day;
while (m != now->tm_mon || d > now->tm_mday) {
days += days_in_month[m] - (d - 1);
days += (m == 1 && y % 4 == 0 && (y % 100 || y % 400 == 0));
d = 1;
if (++m == 12) {
y += 1;
m = 0;
}
}
days += now->tm_mday - d;
printf(", %i %s and %i %s old", age, age == 1 ? "year" : "years", days, days == 1 ? "day" : "days");
}
printf("\n");
}
void
print_birthday(struct libcontacts_birthday *bday, const struct tm *now)
{
int next_year = 0, leap_year = 0, year, age, days = 0, y, m, d;
struct tm when;
if (now->tm_mon + 1 > bday->month)
next_year = 1;
else if (now->tm_mon + 1 == bday->month)
next_year = (now->tm_mday > bday->day);
if (bday->year) {
printf("%04i-", now->tm_year + next_year + 1900);
} else {
printf("??""??""-");
}
year = now->tm_year + next_year + 1900;
if (year % 4 == 0 && (year % 100 || year % 400 == 0))
leap_year = 1;
if (((bday->month - 1) % 12 == 1 && bday->day == 29) && leap_year) {
if (bday->before_on_common) {
bday->day -= 1;
} else {
bday->day = 1;
bday->month += 1;
}
}
printf("(%02u)%.3s-%02u (", (unsigned)bday->month,
&"JanFebMarAprMayJunJulAugSepOctNovDec"[3 * ((bday->month - 1) % 12)], (unsigned)bday->day);
when.tm_year = now->tm_year + next_year;
when.tm_mon = (bday->month - 1) % 12;
when.tm_mday = bday->day;
if (bday->year) {
age = get_age(bday, &when);
printf("%i %s ", age, age == 1 ? "year" : "years");
}
if (when.tm_mon == now->tm_mon && when.tm_mday == now->tm_mday) {
printf("today)\n");
} else {
y = now->tm_year;
m = now->tm_mon;
d = now->tm_mday;
while (m != when.tm_mon || d > when.tm_mday) {
days += days_in_month[m] - (d - 1);
days += (m == 1 && y % 4 == 0 && (y % 100 || y % 400 == 0));
d = 1;
if (++m == 12) {
y += 1;
m = 0;
}
}
days += when.tm_mday - d;
printf("in %i %s)\n", days, days == 1 ? "day" : "days");
}
}
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