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# frozen_string_literal: true
class WeekPeriod
attr_reader :year, :week_number, :date_on_first_day_of_week
def self.from_date(date)
date = date.to_date
new(week_number: date.cweek, year: date.cwyear)
end
def initialize(week_number:, year:)
@week_number = week_number.to_i
@year = year.to_i
validate_week_number
validate_year
@date_on_first_day_of_week = Date.commercial(@year, @week_number)
end
def next
self.class.from_date(date_on_first_day_of_week + 1.week)
end
def previous
self.class.from_date(date_on_first_day_of_week - 1.week)
end
def to_a
[week_number, year]
end
def to_s
"#{I18n.l(date_on_first_day_of_week, format: :long)} " \
"to #{I18n.l(last_day_of_week, format: :long)}"
end
# The date of last day of the week (a Sunday)
def last_day_of_week
@last_day_of_week ||= (date_on_first_day_of_week + 1.week - 1.minute).to_date
end
def validate_week_number
if week_number < 1 || week_number > 53
raise(ArgumentError, "invalid date: week_number must be 1-53")
end
end
def validate_year
raise(ArgumentError, "invalid date year must be >= 2000") if year <= 2000
end
def to_h
{
year: year,
week_number: week_number
}
end
end
Version data entries
10 entries across 10 versions & 1 rubygems