119 lines
3.2 KiB
Ruby
119 lines
3.2 KiB
Ruby
# encoding: UTF-8
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#
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# Copyright (C) 2011 Instructure, Inc.
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#
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# This file is part of Canvas.
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#
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# Canvas is free software: you can redistribute it and/or modify it under
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# the terms of the GNU Affero General Public License as published by the Free
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# Software Foundation, version 3 of the License.
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#
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# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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# details.
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#
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# You should have received a copy of the GNU Affero General Public License along
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module Utils
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class DatetimeRangePresenter
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attr_reader :start, :zone
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def initialize(datetime, end_datetime = nil, datetime_type=:event, zone=nil)
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zone ||= ::Time.zone
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@start = datetime.in_time_zone(zone) rescue datetime
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@_finish = end_datetime.in_time_zone(zone) rescue end_datetime
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@_datetime_type = datetime_type
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@zone = zone
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end
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def as_string(options={})
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return nil unless start
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shorten_midnight = options.fetch(:shorten_midnight, false)
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if is_not_range?
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if shorten_midnight && should_display_as_date?
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start_date_string
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else
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datetime_component(start_date_string, start)
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end
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else
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present_range
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end
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end
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private
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def present_range
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if start.to_date == finish.to_date
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I18n.t('time.ranges.same_day', "%{date} from %{start_time} to %{end_time}",
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date: start_date_string, start_time: start_as_time, end_time: finish_as_time)
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else
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start_string = datetime_component(start_date_string, start)
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end_string = datetime_component(end_date_string, finish)
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I18n.t('time.ranges.different_days', "%{start_date_and_time} to %{end_date_and_time}",
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start_date_and_time: start_string, end_date_and_time: end_string)
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end
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end
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def should_display_as_date?
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(datetime_type == :due_date && start.hour == 23 && start.min == 59) ||
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(datetime_type == :event && start.hour == 0 && start.min == 0)
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end
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def is_not_range?
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!finish || finish == start
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end
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def start_as_time
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present_time(start)
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end
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def finish_as_time
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present_time(finish)
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end
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def datetime_component(date_string, time)
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time_string = present_time(time)
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if datetime_type == :due_date
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I18n.t('time.due_date', "%{date} by %{time}", date: date_string, time: time_string)
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else
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I18n.t('time.event', "%{date} at %{time}", date: date_string, time: time_string)
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end
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end
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def start_date_string
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present_date(start)
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end
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def end_date_string
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present_date(finish)
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end
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def present_time(time)
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TimePresenter.new(time, zone).as_string
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end
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def present_date(date)
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Utils::DatePresenter.new(date.to_date, zone).as_string(date_style)
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end
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def finish
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return nil if datetime_type == :due_date || !valid_raw_type?
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@_finish
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end
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def date_style
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datetime_type == :verbose ? :long : :no_words
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end
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def datetime_type
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return @_datetime_type if valid_raw_type?
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:event
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end
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def valid_raw_type?
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@_datetime_type.is_a?(Symbol)
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end
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end
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end
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