jp.yaml

# Japanese holiday definitions for Ruby Holiday gem.
# Reference:
#   - http://www.h3.dion.ne.jp/~sakatsu/holiday_topic.htm
#   - http://www8.cao.go.jp/chosei/shukujitsu/gaiyou.html
#   - https://en.wikipedia.org/wiki/Public_holidays_in_Japan
#
# For Japanese/English translations of each holiday:
#   - https://kotoritone.com/japanesecalendar/holidays/2019/
#
# This definition can calculate current Japanese holidays,
# don't compat with past changes of Japan Holiday Act.
#
# CHANGES:
#  2010-12-25: Initial version by Tatsuki Sugiura <sugi@nemui.org>
#  2014-11-09: Added substitute holiday by Yoshiyuki Hirano <yoshiyuki.hirano@henteco-labs.com>
#  2015-05-10: Non-Monday substitute holidays by Shuhei Kagawa <shuhei.kagawa@gmail.com>
#  2015-12-15: Added mountain day by Tsuyoshi Sano <ttwo32@gmail.com>
#  2016-03-26: Updated to match new custom method signature. See below for more. Phil Trimble <philtrimble@gmail.com>
#  2019-02-10: Changing usage of 'year_ranges.after' to 'year_ranges.from' and 'year_ranges.before' to 'year_ranges.until', see https://github.com/holidays/definitions/issues/117
#
# MAINTAINER NOTE: This is the most complex set of custom date methods in the entire
# project, mainly surrounding the idea of 'substitute' holidays. Since this is
# the only one that is this complex I have settled on a less-than-ideal solution.
# It is overly verbose and not easy to follow. It will be a target for refactoring
# in the near future.
---
months:
  1:
  - name: 元日
    regions: [jp]
    mday: 1
  - name: 成人の日
    regions: [jp]
    wday: 1
    week: 2
  - name: 振替休日
    regions: [jp]
    mday: 1
    function: jp_substitute_holiday(year, month, day)
  2:
  - name: 建国記念の日
    regions: [jp]
    mday: 11
  - name: 振替休日
    regions: [jp]
    mday: 11
    function: jp_substitute_holiday(year, month, day)
  - name: 天皇誕生日
    regions: [jp]
    mday: 23
    year_ranges:
      from: 2020
  - name: 振替休日
    regions: [jp]
    mday: 23
    function: jp_substitute_holiday(year, month, day)
    year_ranges:
      from: 2020
  3:
  - name: 春分の日
    regions: [jp]
    function: jp_vernal_equinox_day(year)
  - name: 振替休日
    regions: [jp]
    function: jp_vernal_equinox_day_substitute(year)
  4:
  - name: 昭和の日
    regions: [jp]
    mday: 29
  - name: 振替休日
    regions: [jp]
    mday: 29
    function: jp_substitute_holiday(year, month, day)
  - name: 休日
    regions: [jp]
    mday: 30
    year_ranges:
      limited: [2019]
  5:
  - name: 天皇即位
    regions: [jp]
    mday: 1
    year_ranges:
      limited: [2019]
  - name: 休日
    regions: [jp]
    mday: 2
    year_ranges:
      limited: [2019]
  - name: 憲法記念日
    regions: [jp]
    mday: 3
  - name: みどりの日
    regions: [jp]
    mday: 4
  - name: こどもの日
    regions: [jp]
    mday: 5
  - name: 振替休日
    regions: [jp]
    mday: 3
    function: jp_substitute_holiday(year, month, day)
  - name: 振替休日
    regions: [jp]
    mday: 4
    function: jp_substitute_holiday(year, month, day)
  - name: 振替休日
    regions: [jp]
    mday: 5
    function: jp_substitute_holiday(year, month, day)
  7:
  - name: 海の日
    regions: [jp]
    mday: 20
    year_ranges:
      between:
        start: 1996
        end: 2002
  - name: 海の日
    regions: [jp]
    wday: 1
    week: 3
    year_ranges:
      between:
        start: 2003
        end: 2019
  - name: 海の日
    regions: [jp]
    mday: 23
    year_ranges:
      limited: [2020]
  - name: 海の日
    regions: [jp]
    wday: 1
    week: 3
    year_ranges:
      from: 2021
  - name: 振替休日
    regions: [jp]
    function: jp_marine_day_substitute(year)
    year_ranges:
      between:
        start: 1996
        end: 2002
  - name: スポーツの日
    regions: [jp]
    mday: 24
    year_ranges:
      limited: [2020]
  8:
  - name: 山の日
    regions: [jp]
    year_ranges:
      between:
        start: 2016
        end: 2019
    function: jp_mountain_holiday(year)
  - name: 山の日
    regions: [jp]
    mday: 10
    year_ranges:
      limited: [2020]
  - name: 山の日
    regions: [jp]
    year_ranges:
      from: 2021
    function: jp_mountain_holiday(year)
  - name: 振替休日
    regions: [jp]
    year_ranges:
      from: 2016
    function: jp_mountain_holiday_substitute(year)
  9:
  - name: 敬老の日
    regions: [jp]
    wday: 1
    week: 3
  - name: 振替休日
    regions: [jp]
    function: jp_respect_for_aged_holiday_substitute(year)
  - name: 国民の休日
    regions: [jp]
    year_ranges:
      from: 2003
    function: jp_citizens_holiday(year)
  - name: 秋分の日
    regions: [jp]
    function: jp_national_culture_day(year)
  - name: 振替休日
    regions: [jp]
    function: jp_national_culture_day_substitute(year)
  10:
  - name: 体育の日
    regions: [jp]
    wday: 1
    week: 2
    year_ranges:
      until: 2019
  - name: スポーツの日
    regions: [jp]
    wday: 1
    week: 2
    year_ranges:
      from: 2021
  - name: 振替休日
    regions: [jp]
    function: jp_health_sports_day_substitute(year)
  - name: 即位礼正殿の儀
    regions: [jp]
    mday: 22
    year_ranges:
      limited: [2019]
  11:
  - name: 文化の日
    regions: [jp]
    mday: 3
  - name: 振替休日
    regions: [jp]
    mday: 3
    function: jp_substitute_holiday(year, month, day)
  - name: 勤労感謝の日
    regions: [jp]
    mday: 23
  - name: 振替休日
    regions: [jp]
    mday: 23
    function: jp_substitute_holiday(year, month, day)
  12:
  - name: 天皇誕生日
    regions: [jp]
    mday: 23
    year_ranges:
      until: 2018
  - name: 振替休日
    regions: [jp]
    mday: 23
    function: jp_substitute_holiday(year, month, day)
    year_ranges:
      until: 2018

methods:
  jp_health_sports_day_substitute:
    arguments: year
    ruby: |
      Holidays::Factory::Definition.custom_methods_repository.find("jp_substitute_holiday(year, month, day)").call(year, 10, Holidays::Factory::DateCalculator.day_of_month_calculator.call(year, 10, 2, 1))

  jp_vernal_equinox_day:
    arguments: year
    ruby: |
      day =
        case year
        when 1851..1899
          19.8277
        when 1900..1979
          20.8357
        when 1980..2099
          20.8431
        when 2100..2150
          21.8510
        else
          raise IndexError.new("Out of range")
        end
      day += 0.242194 * (year - 1980) - ((year - 1980)/4).floor
      day = day.floor
      Date.civil(year, 3, day)

  jp_vernal_equinox_day_substitute:
    arguments: year
    ruby: |
      date = Holidays::Factory::Definition.custom_methods_repository.find("jp_vernal_equinox_day(year)").call(year)
      Holidays::Factory::Definition.custom_methods_repository.find("jp_substitute_holiday(year, month, day)").call(year, date.month, date.mday)

  jp_marine_day_substitute:
    arguments: year
    ruby: |
      Holidays::Factory::Definition.custom_methods_repository.find("jp_substitute_holiday(year, month, day)").call(year, 7, Holidays::Factory::DateCalculator.day_of_month_calculator.call(year, 7, 3, 1))

  jp_national_culture_day:
    arguments: year
    ruby: |
      day =
        case year
        when 1851..1899
          22.2588
        when 1900..1979
          23.2588
        when 1980..2099
          23.2488
        when 2100..2150
          24.2488
        else
          raise IndexError.new("Out of range")
        end
      day += 0.242194 * (year - 1980) - ((year - 1980)/4).floor
      day = day.floor
      Date.civil(year, 9, day)

  jp_national_culture_day_substitute:
    arguments: year
    ruby: |
      date = Holidays::Factory::Definition.custom_methods_repository.find("jp_national_culture_day(year)").call(year)
      Holidays::Factory::Definition.custom_methods_repository.find("jp_substitute_holiday(year, month, day)").call(year, date.month, date.mday)

  jp_citizens_holiday:
    arguments: year
    ruby: |
      ncd = Holidays::Factory::Definition.custom_methods_repository.find("jp_national_culture_day(year)").call(year)
      if ncd.wday == 3
        ncd - 1
      else
        nil
      end

  jp_mountain_holiday:
    arguments: year
    ruby: |
      Date.civil(year, 8, 11)

  jp_mountain_holiday_substitute:
    arguments: year
    ruby: |
      date = Holidays::Factory::Definition.custom_methods_repository.find("jp_mountain_holiday(year)").call(year)
      Holidays::Factory::Definition.custom_methods_repository.find("jp_substitute_holiday(year, month, day)").call(year, date.month, date.mday)

  jp_respect_for_aged_holiday_substitute:
    arguments: year
    ruby: |
      Holidays::Factory::Definition.custom_methods_repository.find("jp_substitute_holiday(year, month, day)").call(year, 9, Holidays::Factory::DateCalculator.day_of_month_calculator.call(year, 9, 3, 1))

  jp_substitute_holiday:
    arguments: year, month, day
    ruby: |
      date = Date.civil(year, month, day)
      date.wday == 0 ? (Holidays::Factory::Definition.custom_methods_repository.find("jp_next_weekday(date)").call(date+1)) : nil
  jp_next_weekday:
    arguments: date
    ruby: |
      # This suuuucks. I have no idea how to make this not reach into our interal ruby API to do this.
      # I'm punting, I'll come back to this.
      is_holiday = Holidays::JP.holidays_by_month[date.month].any? do |holiday|
        holiday[:mday] == date.day
      end
      date.wday == 0 || is_holiday ? (Holidays::Factory::Definition.custom_methods_repository.find("jp_next_weekday(date)").call(date+1)) : date

tests:
  - given:
      date: '2008-01-01'
      regions: ["jp"]
      options: ["informal"]
    expect:
      name: "元日"
  - given:
      date: '2010-01-11'
      regions: ["jp"]
      options: ["informal"]
    expect:
      name: "成人の日"
  - given:
      date: '2008-02-11'
      regions: ["jp"]
      options: ["informal"]
    expect:
      name: "建国記念の日"
  - given:
      date: '2008-04-29'
      regions: ["jp"]
      options: ["informal"]
    expect:
      name: "昭和の日"
  - given:
      date: '2008-05-03'
      regions: ["jp"]
      options: ["informal"]
    expect:
      name: "憲法記念日"
  - given:
      date: '2008-05-05'
      regions: ["jp"]
      options: ["informal"]
    expect:
      name: "こどもの日"
  - given:
      date: '2010-07-19'
      regions: ["jp"]
      options: ["informal"]
    expect:
      name: "海の日"
  - given:
      date: '2010-09-20'
      regions: ["jp"]
      options: ["informal"]
    expect:
      name: "敬老の日"
  - given:
      date: '2010-10-11'
      regions: ["jp"]
      options: ["informal"]
    expect:
      name: "体育の日"
  - given:
      date: '2008-11-03'
      regions: ["jp"]
      options: ["informal"]
    expect:
      name: "文化の日"
  - given:
      date: '2008-11-23'
      regions: ["jp"]
      options: ["informal"]
    expect:
      name: "勤労感謝の日"
  - given:
      date: '2008-12-23'
      regions: ["jp"]
      options: ["informal"]
    expect:
      name: "天皇誕生日"
  - given:
      date: '2010-03-22'
      regions: ["jp"]
      options: ["informal"]
    expect:
      name: "振替休日"
  - given:
      date: '2008-11-24'
      regions: ["jp"]
      options: ["informal"]
    expect:
      name: "振替休日"
  - given:
      date: '2012-01-02'
      regions: ["jp"]
      options: ["informal"]
    expect:
      name: "振替休日"
  - given:
      date: '2013-05-06'
      regions: ["jp"]
      options: ["informal"]
    expect:
      name: "振替休日"
  - given:
      date: '2014-05-06'
      regions: ["jp"]
      options: ["informal"]
    expect:
      name: "振替休日"
  - given:
      date: '2015-05-06'
      regions: ["jp"]
      options: ["informal"]
    expect:
      name: "振替休日"
  - given:
      date: '2019-08-12'
      regions: ["jp"]
      options: ["informal"]
    expect:
      name: "振替休日"
  - given:
      date: '2004-03-20'
      regions: ["jp"]
    expect:
      name: "春分の日"
  - given:
      date: '2005-03-20'
      regions: ["jp"]
    expect:
      name: "春分の日"
  - given:
      date: '2006-03-21'
      regions: ["jp"]
    expect:
      name: "春分の日"
  - given:
      date: '2007-03-21'
      regions: ["jp"]
    expect:
      name: "春分の日"
  - given:
      date: '2008-03-20'
      regions: ["jp"]
    expect:
      name: "春分の日"
  - given:
      date: '2009-03-20'
      regions: ["jp"]
    expect:
      name: "春分の日"
  - given:
      date: '2010-03-21'
      regions: ["jp"]
    expect:
      name: "春分の日"
  - given:
      date: '2004-09-23'
      regions: ["jp"]
    expect:
      name: "秋分の日"
  - given:
      date: '2005-09-23'
      regions: ["jp"]
    expect:
      name: "秋分の日"
  - given:
      date: '2006-09-23'
      regions: ["jp"]
    expect:
      name: "秋分の日"
  - given:
      date: '2007-09-23'
      regions: ["jp"]
    expect:
      name: "秋分の日"
  - given:
      date: '2008-09-23'
      regions: ["jp"]
    expect:
      name: "秋分の日"
  - given:
      date: '2009-09-23'
      regions: ["jp"]
    expect:
      name: "秋分の日"
  - given:
      date: '2010-09-23'
      regions: ["jp"]
    expect:
      name: "秋分の日"
  - given:
      date: '2011-09-23'
      regions: ["jp"]
    expect:
      name: "秋分の日"
  - given:
      date: '2012-09-22'
      regions: ["jp"]
    expect:
      name: "秋分の日"
  - given:
      date: '2013-09-23'
      regions: ["jp"]
    expect:
      name: "秋分の日"
  - given:
      date: '2032-09-21'
      regions: ["jp"]
    expect:
      name: "国民の休日"
  - given:
      date: '2049-09-21'
      regions: ["jp"]
    expect:
      name: "国民の休日"
  - given:
      date: '2009-09-22'
      regions: ["jp"]
    expect:
      name: "国民の休日"
  - given:
      date: '2015-09-22'
      regions: ["jp"]
    expect:
      name: "国民の休日"
  - given:
      date: '2026-09-22'
      regions: ["jp"]
    expect:
      name: "国民の休日"
  - given:
      date: '1996-07-20'
      regions: ["jp"]
    expect:
      name: "海の日"
  - given:
      date: '2002-07-20'
      regions: ["jp"]
    expect:
      name: "海の日"
  - given:
      date: '2003-07-21'
      regions: ["jp"]
    expect:
      name: "海の日"
  - given:
      date: '2004-07-19'
      regions: ["jp"]
    expect:
      name: "海の日"
  - given:
      date: '2005-07-18'
      regions: ["jp"]
    expect:
      name: "海の日"
  - given:
      date: '2006-07-17'
      regions: ["jp"]
    expect:
      name: "海の日"
  - given:
      date: '2007-07-16'
      regions: ["jp"]
    expect:
      name: "海の日"
  - given:
      date: '2009-07-20'
      regions: ["jp"]
    expect:
      name: "海の日"
  - given:
      date: '2013-07-15'
      regions: ["jp"]
    expect:
      name: "海の日"
  - given:
      date: '2014-07-21'
      regions: ["jp"]
    expect:
      name: "海の日"
  - given:
      date: '2019-07-15'
      regions: ["jp"]
    expect:
      name: "海の日"
  - given:
      date: '2020-07-20'
      regions: ["jp"]
    expect:
      holiday: false
  - given:
      date: '2020-07-23'
      regions: ["jp"]
    expect:
      name: "海の日"
  - given:
      date: '2021-07-19'
      regions: ["jp"]
    expect:
      name: "海の日"
  - given:
      date: '2016-08-11'
      regions: ["jp"]
    expect:
      name: "山の日"
  - given:
      date: '2017-08-11'
      regions: ["jp"]
    expect:
      name: "山の日"
  - given:
      date: '2018-08-11'
      regions: ["jp"]
    expect:
      name: "山の日"
  - given:
      date: '2019-08-11'
      regions: ["jp"]
    expect:
      name: "山の日"
  - given:
      date: '2020-08-10'
      regions: ["jp"]
    expect:
      name: "山の日"
  - given:
      date: '2020-08-11'
      regions: ["jp"]
    expect:
      holiday: false
  - given:
      date: '2021-08-11'
      regions: ["jp"]
    expect:
      name: "山の日"
  - given:
      date: '2022-08-11'
      regions: ["jp"]
    expect:
      name: "山の日"
  - given:
      date: '2015-08-11'
      regions: ["jp"]
    expect:
      holiday: false
  - given:
      date: '1998-09-22'
      regions: ["jp"]
    expect:
      holiday: false
  - given:
      date: '2018-12-23'
      regions: ["jp"]
    expect:
      name: "天皇誕生日"
  - given:
      date: '2019-02-23'
      regions: ["jp"]
    expect:
      holiday: false
  - given:
      date: '2019-12-23'
      regions: ["jp"]
    expect:
      holiday: false
  - given:
      date: '2020-02-23'
      regions: ["jp"]
    expect:
      name: "天皇誕生日"
  - given:
      date: '2019-10-14'
      regions: ["jp"]
    expect:
      name: "体育の日"
  - given:
      date: '2020-07-24'
      regions: ["jp"]
    expect:
      name: "スポーツの日"
  - given:
      date: '2020-10-12'
      regions: ["jp"]
    expect:
      holiday: false
  - given:
      date: '2021-10-11'
      regions: ["jp"]
    expect:
      name: "スポーツの日"