Class: Chronic::RepeaterMonth

Inherits:
Repeater show all
Defined in:
lib/chronic/repeaters/repeater_month.rb

Overview

:nodoc:

Constant Summary collapse

MONTH_SECONDS =

30 * 24 * 60 * 60

2_592_000
YEAR_MONTHS =
12
MONTH_DAYS =
[31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]
MONTH_DAYS_LEAP =
[31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]

Instance Attribute Summary

Attributes inherited from Tag

#type

Instance Method Summary collapse

Methods inherited from Repeater

#<=>, scan, scan_for_day_names, scan_for_day_portions, scan_for_month_names, scan_for_season_names, scan_for_times, scan_for_units

Methods inherited from Tag

#start=

Constructor Details

#initialize(type, options = {}) ⇒ RepeaterMonth

Returns a new instance of RepeaterMonth.


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# File 'lib/chronic/repeaters/repeater_month.rb', line 8

def initialize(type, options = {})
  super
  @current_month_start = nil
end

Instance Method Details

#next(pointer) ⇒ Object


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# File 'lib/chronic/repeaters/repeater_month.rb', line 13

def next(pointer)
  super

  unless @current_month_start
    @current_month_start = offset_by(Chronic.construct(@now.year, @now.month), 1, pointer)
  else
    @current_month_start = offset_by(Chronic.construct(@current_month_start.year, @current_month_start.month), 1, pointer)
  end

  Span.new(@current_month_start, Chronic.construct(@current_month_start.year, @current_month_start.month + 1))
end

#offset(span, amount, pointer) ⇒ Object


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# File 'lib/chronic/repeaters/repeater_month.rb', line 43

def offset(span, amount, pointer)
  Span.new(offset_by(span.begin, amount, pointer), offset_by(span.end, amount, pointer))
end

#offset_by(time, amount, pointer) ⇒ Object


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# File 'lib/chronic/repeaters/repeater_month.rb', line 47

def offset_by(time, amount, pointer)
  direction = pointer == :future ? 1 : -1

  amount_years = direction * amount / YEAR_MONTHS
  amount_months = direction * amount % YEAR_MONTHS

  new_year = time.year + amount_years
  new_month = time.month + amount_months
  if new_month > YEAR_MONTHS
    new_year += 1
    new_month -= YEAR_MONTHS
  end

  days = month_days(new_year, new_month)
  new_day = time.day > days ? days : time.day

  Chronic.construct(new_year, new_month, new_day, time.hour, time.min, time.sec)
end

#this(pointer = :future) ⇒ Object


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# File 'lib/chronic/repeaters/repeater_month.rb', line 25

def this(pointer = :future)
  super

  case pointer
  when :future
    month_start = Chronic.construct(@now.year, @now.month, @now.day + 1)
    month_end = self.offset_by(Chronic.construct(@now.year, @now.month), 1, :future)
  when :past
    month_start = Chronic.construct(@now.year, @now.month)
    month_end = Chronic.construct(@now.year, @now.month, @now.day)
  when :none
    month_start = Chronic.construct(@now.year, @now.month)
    month_end = self.offset_by(Chronic.construct(@now.year, @now.month), 1, :future)
  end

  Span.new(month_start, month_end)
end

#to_sObject


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# File 'lib/chronic/repeaters/repeater_month.rb', line 70

def to_s
  super << '-month'
end

#widthObject


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# File 'lib/chronic/repeaters/repeater_month.rb', line 66

def width
  MONTH_SECONDS
end