38 lines
910 B
Ruby
38 lines
910 B
Ruby
# frozen_string_literal: true
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class Unread
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# This module helps us calculate unread post counts
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def initialize(topic, topic_user, guardian)
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@guardian = guardian
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@topic = topic
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@topic_user = topic_user
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end
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def unread_posts
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return 0 if @topic_user.last_read_post_number.blank?
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return 0 if do_not_notify?(@topic_user.notification_level)
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highest_post_number = @guardian.is_whisperer? ? @topic.highest_staff_post_number : @topic.highest_post_number
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return 0 if @topic_user.last_read_post_number > highest_post_number
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unread = (highest_post_number - @topic_user.last_read_post_number)
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unread = 0 if unread < 0
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unread
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end
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protected
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DO_NOT_NOTIFY_LEVELS = [
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TopicUser.notification_levels[:muted],
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TopicUser.notification_levels[:regular]
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]
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def do_not_notify?(notification_level)
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DO_NOT_NOTIFY_LEVELS.include?(notification_level)
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end
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end
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