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datetime_range_presenter.rb
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# frozen_string_literal: true # Copyright (C) 2014 - present Instructure, Inc. # # This file is part of Canvas. # # Canvas is free software: you can redistribute it and/or modify it under # the terms of the GNU Affero General Public License as published by the Free # Software Foundation, version 3 of the License. # # Canvas is distributed in the hope that it will be useful, but WITHOUT ANY # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR # A PARTICULAR PURPOSE. See the GNU Affero General Public License for more # details. # # You should have received a copy of the GNU Affero General Public License along # with this program. If not, see <http://www.gnu.org/licenses/>. module Utils class DatetimeRangePresenter attr_reader :start, :zone, :with_weekday def initialize(datetime, end_datetime = nil, datetime_type = :event, zone = nil, with_weekday: false) zone ||= ::Time.zone @start = datetime.in_time_zone(zone) rescue datetime @_finish = end_datetime.in_time_zone(zone) rescue end_datetime @_datetime_type = datetime_type @zone = zone @with_weekday = with_weekday end def as_string(options = {}) return nil unless start shorten_midnight = options.fetch(:shorten_midnight, false) if is_not_range? if shorten_midnight && should_display_as_date? start_date_string else datetime_component(start_date_string, start) end else present_range end end private def present_range if start.to_date == finish.to_date I18n.t("time.ranges.same_day", "%{date} from %{start_time} to %{end_time}", date: start_date_string, start_time: start_as_time, end_time: finish_as_time) else start_string = datetime_component(start_date_string, start) end_string = datetime_component(end_date_string, finish) I18n.t("time.ranges.different_days", "%{start_date_and_time} to %{end_date_and_time}", start_date_and_time: start_string, end_date_and_time: end_string) end end def should_display_as_date? (datetime_type == :due_date && start.hour == 23 && start.min == 59) || (datetime_type == :event && start.hour == 0 && start.min == 0) end def is_not_range? !finish || finish == start end def start_as_time present_time(start) end def finish_as_time present_time(finish) end def datetime_component(date_string, time) time_string = present_time(time) if datetime_type == :due_date I18n.t("time.due_date", "%{date} by %{time}", date: date_string, time: time_string) else I18n.t("time.event", "%{date} at %{time}", date: date_string, time: time_string) end end def start_date_string present_date(start) end def end_date_string present_date(finish) end def present_time(time) TimePresenter.new(time, zone).as_string end def present_date(date) Utils::DatePresenter.new(date.to_date, zone, with_weekday:).as_string(date_style) end def finish return nil if datetime_type == :due_date || !valid_raw_type? @_finish end def date_style case datetime_type when :verbose :long when :weekday_only :weekday else :no_words end end def datetime_type return @_datetime_type if valid_raw_type? :event end def valid_raw_type? @_datetime_type.is_a?(Symbol) end end end