Class: Zakuro::Calculation::Monthly::SolarTermSelector

Inherits:
Object
  • Object
show all
Defined in:
lib/zakuro/calculation/monthly/internal/solar_term_selector.rb

Overview

SolarTermSelector 二十四節気検索

Constant Summary collapse

LAST_DAY_LIMIT =

Returns 月最後の二十四節気を検索する大余の範囲上限.

Returns:

  • (Integer) —

    月最後の二十四節気を検索する大余の範囲上限

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Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(context: Context::Context.new, solar_terms: []) ⇒ SolarTermSelector

初期化

Parameters:

  • context (Context::Context) (defaults to: Context::Context.new) —

    暦コンテキスト

  • solar_terms (Array<Cyle::AbstractSolarTerm>) (defaults to: []) —

    二十四節気



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# File 'lib/zakuro/calculation/monthly/internal/solar_term_selector.rb', line 29

def initialize(context: Context::Context.new, solar_terms: [])
  @context = context
  @solar_terms = solar_terms
end

Instance Attribute Details

#context ⇒ Context::Context (readonly)

Returns 暦コンテキスト.

Returns:



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# File 'lib/zakuro/calculation/monthly/internal/solar_term_selector.rb', line 19

def context
  @context
end

#solar_terms ⇒ Array<Cyle::AbstractSolarTerm> (readonly)

Returns 二十四節気.

Returns:

  • (Array<Cyle::AbstractSolarTerm>) —

    二十四節気



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# File 'lib/zakuro/calculation/monthly/internal/solar_term_selector.rb', line 21

def solar_terms
  @solar_terms
end

Instance Method Details

#add_term(term:) ⇒ Object

二十四節気を追加する

Parameters:



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# File 'lib/zakuro/calculation/monthly/internal/solar_term_selector.rb', line 75

def add_term(term:)
  solar_terms.push(term)
end

#empty? ⇒ True, False

二十四節気が未設定かどうかを検証する

Returns:

  • (True) —

    設定なし

  • (False) —

    設定あり



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# File 'lib/zakuro/calculation/monthly/internal/solar_term_selector.rb', line 40

def empty?
  solar_terms.empty?
end

#even_term ⇒ Cycle::AbstractSolarTerm

中気を返す

Returns:



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# File 'lib/zakuro/calculation/monthly/internal/solar_term_selector.rb', line 49

def even_term
  solar_terms.each do |term|
    return term if term.index.even?
  end

  context.resolver.solar_term.new
end

#odd_term ⇒ Cycle::AbstractSolarTerm

節気を返す

Returns:



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# File 'lib/zakuro/calculation/monthly/internal/solar_term_selector.rb', line 62

def odd_term
  solar_terms.each do |term|
    return term if term.index.odd?
  end

  context.resolver.solar_term.new
end

#solar_term_by_day(day:, meta:) ⇒ Cycle::AbstractSolarTerm

大余に対応する二十四節気

Parameters:

  • day (Integer) —

    大余

  • meta (Meta) —

    メタ情報

Returns:



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# File 'lib/zakuro/calculation/monthly/internal/solar_term_selector.rb', line 111

def solar_term_by_day(day:, meta:)
  target = context.resolver.remainder.new(day: day, minute: 0, second: 0)

  meta.all_solar_terms.each_cons(2) do |current_solar_term, next_solar_term|
    in_range = Tool::RemainderComparer.in_range?(
      target: target, start: current_solar_term.remainder, last: next_solar_term.remainder
    )
    return current_solar_term if in_range
  end

  last_solar_term(target: target, meta: meta)
end

#sort ⇒ Object

二十四節気を正しい順序にソートする



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# File 'lib/zakuro/calculation/monthly/internal/solar_term_selector.rb', line 82

def sort
  sorted = (solar_terms.sort do |termx, termy|
    termx.index <=> termy.index
  end)

  unless reset_term?(solar_terms: sorted)
    @solar_terms = sorted
    return
  end

  @solar_terms = reset(terms: sorted)
end