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module IceCube
module Validations::YearlyInterval
def interval(interval)
@interval = normalized_interval(interval)
replace_validations_for(:interval, [Validation.new(@interval)])
clobber_base_validations(:year)
self
end
class Validation
attr_reader :interval
def initialize(interval)
@interval = interval
end
def type
:year
end
def dst_adjust?
true
end
def validate(step_time, start_time)
years = step_time.year - start_time.year
offset = (years % interval).nonzero?
interval - offset if offset
end
def build_s(builder)
builder.base = IceCube::I18n.t('ice_cube.each_year', count: interval)
end
def build_hash(builder)
builder[:interval] = interval
end
def build_ical(builder)
builder['FREQ'] << 'YEARLY'
unless interval == 1
builder['INTERVAL'] << interval
end
end
end
end
end
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