class Chronic::RepeaterYear

def initialize(type)
  super
  @current_year_start = nil
end

def next(pointer)
  super
  if !@current_year_start
    case pointer
    when :future
      @current_year_start = Time.construct(@now.year + 1)
    when :past
      @current_year_start = Time.construct(@now.year - 1)
    end
  else
    diff = pointer == :future ? 1 : -1
    @current_year_start = Time.construct(@current_year_start.year + diff)
  end
  Chronic::Span.new(@current_year_start, Time.construct(@current_year_start.year + 1))
end

def offset(span, amount, pointer)
  direction = pointer == :future ? 1 : -1
  sb = span.begin
  new_begin = Time.construct(sb.year + (amount * direction), sb.month, sb.day, sb.hour, sb.min, sb.sec)
  se = span.end
  new_end = Time.construct(se.year + (amount * direction), se.month, se.day, se.hour, se.min, se.sec)
  Chronic::Span.new(new_begin, new_end)
end

def this(pointer = :future)
  super
  case pointer
  when :future
    this_year_start = Time.construct(@now.year, @now.month, @now.day) + Chronic::RepeaterDay::DAY_SECONDS
    this_year_end = Time.construct(@now.year + 1, 1, 1)
  when :past
    this_year_start = Time.construct(@now.year, 1, 1)
    this_year_end = Time.construct(@now.year, @now.month, @now.day)
  when :none
    this_year_start = Time.construct(@now.year, 1, 1)
    this_year_end = Time.construct(@now.year + 1, 1, 1)
  end
  Chronic::Span.new(this_year_start, this_year_end)
end

def to_s
  super << '-year'
end

def width
  (365 * 24 * 60 * 60)
end