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/*
* Copyright (c) 2021, the SerenityOS developers.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <AK/String.h>
#include <LibCore/DateTime.h>
#include <stdio.h>
#include <unistd.h>
class DiscordianDate {
public:
explicit DiscordianDate(Core::DateTime date)
{
m_gregorian_date = date;
m_yold = date.year() + 1166;
uint16_t day = day_of_yold() + 1;
if (is_leap_year() && day > m_st_tibs_day_of_yold)
--day;
m_day_of_week = day_of_week_from_day_of_yold(day);
m_season = season_from_day_of_yold(day);
m_date = date_from_day_of_yold(day);
}
const char* day_of_week() { return m_day_of_week.characters(); };
const char* season() { return m_season.characters(); };
uint16_t year() { return yold(); };
uint16_t yold() { return m_yold; };
uint16_t day_of_year() { return day_of_yold(); };
uint16_t day_of_yold() { return m_gregorian_date.day_of_year(); };
bool is_leap_year() { return m_gregorian_date.is_leap_year(); };
bool is_st_tibs_day() { return (is_leap_year() && (day_of_yold() + 1) == m_st_tibs_day_of_yold); };
String to_string()
{
if (is_st_tibs_day())
return String::formatted("St. Tib's Day, in the YOLD {}", m_yold);
return String::formatted("{}, day {} of {}, in the YOLD {}", m_day_of_week, m_date, m_season, m_yold);
}
private:
static const int m_days_in_week = 5;
static const int m_days_in_season = 73;
static const int m_st_tibs_day_of_yold = 60;
Core::DateTime m_gregorian_date;
String m_day_of_week;
String m_season;
int m_date;
uint64_t m_yold; // 64-bit for use after X-Day in the YOLD 8661
int date_from_day_of_yold(uint16_t day)
{
return (day % m_days_in_season == 0 ? m_days_in_season : day % m_days_in_season);
}
const char* day_of_week_from_day_of_yold(uint16_t day)
{
if (is_st_tibs_day())
return nullptr;
switch ((day % m_days_in_week) == 0 ? m_days_in_week : (day % m_days_in_week)) {
case 1:
return "Sweetmorn";
case 2:
return "Boomtime";
case 3:
return "Pungenday";
case 4:
return "Prickle-Prickle";
case 5:
return "Setting Orange";
default:
return nullptr;
}
}
const char* season_from_day_of_yold(uint16_t day)
{
if (is_st_tibs_day())
return nullptr;
switch (((day % m_days_in_season) == 0 ? day - 1 : day) / m_days_in_season) {
case 0:
return "Chaos";
case 1:
return "Discord";
case 2:
return "Confusion";
case 3:
return "Bureaucracy";
case 4:
return "The Aftermath";
default:
return nullptr;
}
}
};
int main([[maybe_unused]] int argc, [[maybe_unused]] char** argv)
{
if (pledge("stdio", nullptr) < 0) {
perror("pledge");
return 1;
}
auto date = Core::DateTime::from_timestamp(time(nullptr));
printf("Today is %s\n", DiscordianDate(date).to_string().characters());
return 0;
}
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