helpers pour les jours fériés en France

holidays-fr.rb

def is_exceptional? date
    holiday(date) != nil
  end

  def is_weekend? date
    date.saturday? || date.sunday?
  end

  def is_working_day? date
    not(is_exceptional?(date)) and not(is_weekend?(date))
  end

  def trigram date
    
  end
  
  def paques year = Time.now.year
    s = year / 100
    n = year - 19 * ( year / 19 )
    k = ( s - 17 ) / 25
    i = s - s / 4 - ( s - k ) / 3 + 19 * n + 15
    i = i - 30 * ( i / 30 )
    i = i - ( i / 28 ) * ( 1 - ( i / 28 ) * ( 29 / ( i + 1 ) ) * ( ( 21 - n ) / 11 ) )
    j = year + year / 4 + i + 2 - s + s / 4
    j = j - 7 * ( j / 7 )
    l = i - j
    m = 3 + ( l + 40 ) / 44
    d = l + 28 - 31 * ( m / 4 )
    Date.new(year, m, d)
  end

  def lundi_paques year = Time.now.year
    paques(year) + 1.day
  end

  def ascension year = Time.now.year
    paques(year) + 39.days
  end

  def pentecote year = Time.now.year
    paques(year) + 50.days
  end

  def jour_an year = Time.now.year
    Date.new(year, 1, 1)
  end

  def fete_travail year = Time.now.year
    Date.new(year, 5, 1)
  end

  def victoire_allies year = Time.now.year
    Date.new(year, 5, 8)
  end

  def fete_nationale year = Time.now.year
    Date.new(year, 7, 14)
  end

  def assomption year = Time.now.year
    Date.new(year, 8, 15)
  end

  def toussaint year = Time.now.year
    Date.new(year, 11, 1)
  end

  def armistice year = Time.now.year
    Date.new(year, 11, 11)
  end

  def noel year = Time.now.year
    Date.new(year, 12, 25)
  end

  def holidays
    [
      {name: "Jour de l'an", date: jour_an},
      {name: "Victoire des alliés", date: victoire_allies},
      {name: "Fête Nationale", date: fete_nationale},
      {name: "Fête du travail", date: fete_travail},
      {name: "Assomption", date: assomption},
      {name: "Toussaint", date: toussaint},
      {name: "Armistice", date: armistice},
      {name: "Noël", date: noel},
      {name: "Pâques", date: paques},
      {name: "Lundi de Pâques", date: lundi_paques},
      {name: "Ascension", date: ascension},
      {name: "Pentecôte", date: pentecote}
    ]
  end

  def holiday date
    holidays.each do |day|
      return day[:name] if day[:date] == date
    end
    nil
  end