Class: SayWhen::DaysOfMonthCronValue

Inherits:
CronValue
  • Object
show all
Defined in:
lib/say_when/cron_expression.rb

Instance Attribute Summary collapse

Attributes inherited from CronValue

#expression, #max, #min, #part, #values

Instance Method Summary collapse

Methods inherited from CronValue

parse_number

Constructor Details

#initialize(exp) ⇒ DaysOfMonthCronValue

Returns a new instance of DaysOfMonthCronValue.



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# File 'lib/say_when/cron_expression.rb', line 250

def initialize(exp)
  self.is_last = false
  self.is_weekday = false
  super(:mday, 1, 31, exp)
end

Instance Attribute Details

#is_last ⇒ Object

Returns the value of attribute is_last.



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# File 'lib/say_when/cron_expression.rb', line 249

def is_last
  @is_last
end

#is_specified ⇒ Object

Returns the value of attribute is_specified.



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# File 'lib/say_when/cron_expression.rb', line 249

def is_specified
  @is_specified
end

#is_weekday ⇒ Object

Returns the value of attribute is_weekday.



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# File 'lib/say_when/cron_expression.rb', line 249

def is_weekday
  @is_weekday
end

Instance Method Details

#include?(date) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/say_when/cron_expression.rb', line 333

def include?(date)
  return true unless is_specified
  last = date.clone
  if is_last
    last = last.end_of_month.to_date
    last = nearest_week_day(last) if is_weekday
    last == date.to_date
  elsif is_weekday
    if values.empty?
      (1..5).include?(date.wday)
    else
      nearest_week_day(date.change(day: values.first)) == date
    end
  else
    super(date)
  end
end

#last(date) ⇒ Object 



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# File 'lib/say_when/cron_expression.rb', line 268

def last(date)
  result = if !is_specified
    date
  elsif is_last
    eom = date.end_of_month
    eom = nearest_week_day(eom) if is_weekday
    if eom > date
      eom = 1.month.ago(date)
      eom = nearest_week_day(eom.change(day: eom.end_of_month))
    end
    eom
  elsif is_weekday
    if values.empty?
      nearest = nearest_week_day(date)
      if nearest > date
        nearest = 1.month.ago(date)
        nearest = nearest_week_day(date.change(day: date.end_of_month))
      end
    else
      nearest = nearest_week_day(date.change(day: values.first))
      nearest = nearest_week_day(1.month.ago(date).change(day: values.first)) if nearest > date
    end
    nearest
  else
    l = values.reverse.detect { |v| v < date.mday }
    if l.blank?
      1.month.ago(date).change(day: values.last)
    else
      date.change(day: l.to_i)
    end
  end
  result.change(hour: 23, min: 59, sec: 59)
end

#nearest_week_day(date) ⇒ Object 



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# File 'lib/say_when/cron_expression.rb', line 351

def nearest_week_day(date)
  if (1..5).include?(date.wday)
    date
  elsif date.wday == 6
    (date.beginning_of_month.to_date == date.to_date) ? 2.days.since(date) : 1.day.ago(date)
  elsif date.wday == 0
    (date.end_of_month.to_date == date.to_date) ? date = 2.days.ago(date) : 1.day.since(date)
  end
end

#next(date) ⇒ Object 



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# File 'lib/say_when/cron_expression.rb', line 302

def next(date)
  result = if !is_specified
    date
  elsif is_last
    last = date.end_of_month
    last = nearest_week_day(last) if is_weekday
    if last < date
      last = 1.month.since(date)
      last = nearest_week_day(last.change(day: last.end_of_month))
    end
    last
  elsif is_weekday
    if values.empty?
      nearest = nearest_week_day(date)
      nearest = nearest_week_day(1.month.since(date).change(day: 1)) if nearest < date
    else
      nearest = nearest_week_day(date.change(day: values.first))
      nearest = nearest_week_day(1.month.since(date).change(day: values.first)) if nearest < date
    end
    nearest
  else
    n = values.detect { |v| v > date.mday }
    if n.blank?
      date.months_since(1).change(day: values.first)
    else
      date.change(day: n.to_i)
    end
  end
  result.change(hour: 0)
end

#parse(exp) ⇒ Object 



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# File 'lib/say_when/cron_expression.rb', line 256

def parse(exp)
  if self.is_specified = !(expression =~ /\?/)
    case exp
      when /^(L)$/ then self.is_last = true
      when /^(W)$/ then self.is_weekday = true
      when /^(WL|LW)$/ then self.is_last = (self.is_weekday = true)
      when /^(\d+)W$/ then self.is_weekday = true; self.values << $1.to_i
      else super(exp)
    end
  end
end

#to_s ⇒ Object 



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# File 'lib/say_when/cron_expression.rb', line 361

def to_s
  "[e:#{expression}, v:#{values.inspect}, is:#{is_specified}, il:#{is_last}, iw:#{is_weekday}]\n"
end