# New Zealand holiday definitions for the Ruby Holiday gem.
# Updated: 2010-03-28.
# Sources:
# - http://en.wikipedia.org/wiki/Public_holidays_in_New_Zealand
---
months:
  0:
  - name: Good Friday
    regions: [nz]
    function: easter(year)-2
  - name: Easter Saturday
    regions: [nz]
    function: easter(year)-1
  - name: Easter Monday
    regions: [nz]
    function: easter(year)+1
  1:
  - name: New Year's Day
    regions: [nz]
    mday: 1
    observed: to_monday_if_weekend
  - name: Day after New Year's Day
    regions: [nz]
    mday: 2
    observed: to_weekday_if_boxing_weekend
  - name: Southland Anniversary Day
    regions: [nz_sl]
    mday: 17
  - name: Wellington Anniversary Day
    regions: [nz_we]
    mday: 22
    observed: closest_monday
  - name: Auckland Anniversary Day
    regions: [nz_ak]
    mday: 29
    observed: closest_monday
  - name: Northland Anniversary Day
    regions: [nz_nl]
    mday: 29
    observed: closest_monday
  2:
  - name: Nelson Anniversary Day
    regions: [nz_ak]
    mday: 1
    observed: closest_monday
  - name: Waitangi Day
    regions: [au]
    mday: 6
  3:
  - name: Otago Anniversary Day
    regions: [nz_ot]
    mday: 23
    observed: closest_monday
  - name: Taranaki Anniversary Day
    regions: [nz_ak]
    week: 2
    wday: 1
  4:
  - name: ANZAC Day
    regions: [au]
    mday: 25
  6:
  - name: Queen's Birthday
    regions: [nz]
    week: 1
    wday: 1
  9:
  - name: Dominion Day
    regions: [nz_sc]
    week: 4
    wday: 1
  10:
  - name: Hawke's bay Anniversary Day
    regions: [nz_hb]
    week: 1
    wday: 1
    observed: previous_friday
  - name: Labour Day
    regions: [nz]
    week: 4
    wday: 1
  - name: Marlborough Anniversary Day
    regions: [nz_mb]
    week: 4
    wday: 1
    observed: next_week
  11:
  - name: Canterbury Anniversary Day
    regions: [nz_ca]
    week: 2
    wday: 5
  - name: Chatham Island Anniversary Day
    regions: [nz_ch]
    mday: 30
    observed: closest_monday
  12:
  - name: Westland Anniversary Day
    regions: [nz_wl]
    mday: 1
    observed: closest_monday
  - name: Christmas Day
    regions: [nz]
    mday: 25
    observed: to_monday_if_weekend
  - name: Boxing Day
    regions: [nz]
    mday: 26
    observed: to_weekday_if_boxing_weekend
tests: |
    {Date.civil(2007,1,1) => 'New Year\'s Day',
     Date.civil(2007,1,2) => 'Day after New Year\'s Day',
     Date.civil(2007,2,6) => 'Waitangi',
     Date.civil(2007,4,6) => 'Good Friday',
     Date.civil(2007,4,9) => 'Easter Monday',
     Date.civil(2007,4,25) => 'ANZAC Day',
     Date.civil(2007,12,25) => 'Christmas Day',
     Date.civil(2007,12,26) => 'Boxing Day'}.each do |date, name|
      assert_equal name, Holidays.on(date, :nz, :informal)[0][:name]
    end
methods:
  closest_monday: |
    def self.closest_monday(date)
      if [1, 2, 3, 4].include?(date.wday)
        date -= (date.wday - 1)
      elsif 0 == date.wday
        date += 1
      else
        date += 8 - date.wday
      end
      date
    end

  previous_friday: |
    def self.previous_friday(date)
      date - 3
    end

  next_week: |
    def self.next_week(date)
      date + 7
    end