89 lines
2.4 KiB
Ruby
89 lines
2.4 KiB
Ruby
# frozen_string_literal: true
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class Chat::ChatMessageMentions
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def initialize(message)
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@message = message
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mentions = parse_mentions(message)
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group_mentions = parse_group_mentions(message)
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@has_global_mention = mentions.include?("@all")
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@has_here_mention = mentions.include?("@here")
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@parsed_direct_mentions = normalize(mentions)
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@parsed_group_mentions = normalize(group_mentions)
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end
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attr_accessor :has_global_mention,
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:has_here_mention,
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:parsed_direct_mentions,
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:parsed_group_mentions
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def global_mentions
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return User.none unless @has_global_mention
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channel_members.where.not(username_lower: @parsed_direct_mentions)
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end
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def direct_mentions
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chat_users.where(username_lower: @parsed_direct_mentions)
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end
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def group_mentions
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chat_users.includes(:groups).joins(:groups).where(groups: mentionable_groups)
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end
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def here_mentions
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return User.none unless @has_here_mention
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channel_members
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.where("last_seen_at > ?", 5.minutes.ago)
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.where.not(username_lower: @parsed_direct_mentions)
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end
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def mentionable_groups
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@mentionable_groups ||=
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Group.mentionable(@message.user, include_public: false).where(id: visible_groups.map(&:id))
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end
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def visible_groups
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@visible_groups ||=
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Group.where("LOWER(name) IN (?)", @parsed_group_mentions).visible_groups(@message.user)
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end
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private
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def channel_members
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chat_users.where(
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user_chat_channel_memberships: {
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following: true,
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chat_channel_id: @message.chat_channel.id,
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},
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)
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end
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def chat_users
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User
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.includes(:user_chat_channel_memberships, :group_users)
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.distinct
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.joins("LEFT OUTER JOIN user_chat_channel_memberships uccm ON uccm.user_id = users.id")
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.joins(:user_option)
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.real
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.not_suspended
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.where(user_options: { chat_enabled: true })
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.where.not(username_lower: @message.user.username.downcase)
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end
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def parse_mentions(message)
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Nokogiri::HTML5.fragment(message.cooked).css(".mention").map(&:text)
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end
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def parse_group_mentions(message)
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Nokogiri::HTML5.fragment(message.cooked).css(".mention-group").map(&:text)
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end
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def normalize(mentions)
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mentions.reduce([]) do |memo, mention|
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%w[@here @all].include?(mention.downcase) ? memo : (memo << mention[1..-1].downcase)
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end
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end
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end
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