proximity.rb

class Date
  def to_words
    if self == Date.today
      "Today"
    elsif self <= Date.today - 1
      if self == Date.today - 1
        "Yesterday"
      elsif ((Date.today - 7)..(Date.today - 1)).include?(self)
        "Last #{self.strftime("%A")}"
      elsif ((Date.today - 14)..(Date.today - 8)).include?(self)
        "Two #{self.strftime("%A")}s ago"
      elsif ((Date.today - 21)..(Date.today - 15)).include?(self)
        "Three #{self.strftime("%A")}s ago"
      elsif ((Date.today - 29)..(Date.today - 22)).include?(self)
        "Four #{self.strftime("%A")}s ago"
      elsif Date.today - 30 < self
        "More than a month ago"
      end
    else
      if self == Date.today + 1
        "Tomorrow"
      elsif ((Date.today + 1)..(Date.today + 6)).include?(self)
        "This coming #{self.strftime("%A")}"
      elsif ((Date.today + 7)..(Date.today + 14)).include?(self)
        "Next #{self.strftime("%A")}s away"
      elsif ((Date.today + 15)..(Date.today + 21)).include?(self)
        "Two #{self.strftime("%A")}s away"
      elsif ((Date.today + 22)..(Date.today + 29)).include?(self)
        "Three #{self.strftime("%A")}s away"
      elsif Date.today + 30 > self
        "More than a month in the future"
      end
    end
  end
end