mirror of
https://github.com/RGBCube/serenity
synced 2025-05-16 19:45:07 +00:00
ede5c9548e
In most applications, we invoke tzset once at startup for now. Most of these are short lived and don't need to know about time zone changes. The exception is the ClockWidget in the taskbar. Here, we invoke tzset each time we update the system time. This way, any time zone changes can take effect immediately.
114 lines
3.1 KiB
C++
114 lines
3.1 KiB
C++
/*
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* Copyright (c) 2021, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/String.h>
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#include <LibCore/DateTime.h>
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#include <LibCore/System.h>
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#include <LibMain/Main.h>
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#include <time.h>
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#include <unistd.h>
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class DiscordianDate {
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public:
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explicit DiscordianDate(Core::DateTime date)
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{
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m_gregorian_date = date;
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m_yold = date.year() + 1166;
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uint16_t day = day_of_yold() + 1;
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if (is_leap_year() && day > m_st_tibs_day_of_yold)
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--day;
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m_day_of_week = day_of_week_from_day_of_yold(day);
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m_season = season_from_day_of_yold(day);
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m_date = date_from_day_of_yold(day);
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}
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const char* day_of_week() { return m_day_of_week.characters(); };
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const char* season() { return m_season.characters(); };
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uint16_t year() { return yold(); };
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uint16_t yold() { return m_yold; };
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uint16_t day_of_year() { return day_of_yold(); };
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uint16_t day_of_yold() { return m_gregorian_date.day_of_year(); };
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bool is_leap_year() { return m_gregorian_date.is_leap_year(); };
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bool is_st_tibs_day() { return (is_leap_year() && (day_of_yold() + 1) == m_st_tibs_day_of_yold); };
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String to_string()
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{
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if (is_st_tibs_day())
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return String::formatted("St. Tib's Day, in the YOLD {}", m_yold);
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return String::formatted("{}, day {} of {}, in the YOLD {}", m_day_of_week, m_date, m_season, m_yold);
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}
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private:
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static const int m_days_in_week = 5;
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static const int m_days_in_season = 73;
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static const int m_st_tibs_day_of_yold = 60;
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Core::DateTime m_gregorian_date;
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String m_day_of_week;
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String m_season;
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int m_date;
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uint64_t m_yold; // 64-bit for use after X-Day in the YOLD 8661
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int date_from_day_of_yold(uint16_t day)
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{
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return (day % m_days_in_season == 0 ? m_days_in_season : day % m_days_in_season);
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}
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const char* day_of_week_from_day_of_yold(uint16_t day)
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{
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if (is_st_tibs_day())
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return nullptr;
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switch ((day % m_days_in_week) == 0 ? m_days_in_week : (day % m_days_in_week)) {
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case 1:
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return "Sweetmorn";
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case 2:
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return "Boomtime";
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case 3:
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return "Pungenday";
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case 4:
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return "Prickle-Prickle";
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case 5:
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return "Setting Orange";
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default:
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return nullptr;
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}
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}
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const char* season_from_day_of_yold(uint16_t day)
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{
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if (is_st_tibs_day())
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return nullptr;
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switch (((day % m_days_in_season) == 0 ? day - 1 : day) / m_days_in_season) {
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case 0:
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return "Chaos";
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case 1:
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return "Discord";
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case 2:
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return "Confusion";
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case 3:
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return "Bureaucracy";
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case 4:
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return "The Aftermath";
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default:
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return nullptr;
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}
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}
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};
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ErrorOr<int> serenity_main(Main::Arguments)
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{
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TRY(Core::System::pledge("stdio rpath"));
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tzset();
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auto date = Core::DateTime::now();
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outln("Today is {}", DiscordianDate(date).to_string());
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return 0;
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}
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