40 lines
1.1 KiB
Ruby
40 lines
1.1 KiB
Ruby
# frozen_string_literal: true
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class Unread
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# This module helps us calculate unread and new 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 do_not_notify?(@topic_user.notification_level)
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result = ((@topic_user.highest_seen_post_number || 0) - (@topic_user.last_read_post_number || 0))
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result = 0 if result < 0
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result
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end
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def new_posts
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return 0 if @topic_user.highest_seen_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_staff? ? @topic.highest_staff_post_number : @topic.highest_post_number
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return 0 if (@topic_user.last_read_post_number || 0) > highest_post_number
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new_posts = (highest_post_number - @topic_user.highest_seen_post_number)
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new_posts = 0 if new_posts < 0
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return new_posts
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end
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protected
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def do_not_notify?(notification_level)
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[TopicUser.notification_levels[:muted], TopicUser.notification_levels[:regular]].include?(notification_level)
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end
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end
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