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# frozen_string_literal: true
class RemoveFromLocalTimelinesService < BaseService
include Redisable
def call(status)
@payload = Oj.dump(event: :delete, payload: status.id.to_s)
@status = status
@account = status.account
@tags = status.tags.pluck(:name).to_a
@mentions = status.active_mentions.includes(:account).to_a
@reblogs = status.reblogs.includes(:account).to_a
RedisLock.acquire(lock_options) do |lock|
if lock.acquired?
remove_from_self if status.account.local?
remove_from_followers
remove_from_lists
remove_from_affected
remove_from_hashtags
remove_from_public
remove_from_media if status.media_attachments.any?
remove_from_direct if status.direct_visibility?
else
raise Mastodon::RaceConditionError
end
end
end
private
def remove_from_self
FeedManager.instance.unpush_from_home(@account, @status)
end
def remove_from_followers
@account.followers_for_local_distribution.reorder(nil).find_each do |follower|
FeedManager.instance.unpush_from_home(follower, @status)
end
end
def remove_from_lists
@account.lists_for_local_distribution.select(:id, :account_id).reorder(nil).find_each do |list|
FeedManager.instance.unpush_from_list(list, @status)
end
end
def remove_from_affected
@mentions.map(&:account).select(&:local?).each do |account|
redis.publish("timeline:#{account.id}", @payload)
end
end
def remove_from_hashtags
return unless @status.distributable?
@tags.each do |hashtag|
redis.publish("timeline:hashtag:#{hashtag}", @payload)
redis.publish("timeline:hashtag:#{hashtag}:local", @payload) if @status.local?
end
end
def remove_from_public
return unless @status.distributable?
redis.publish('timeline:public', @payload)
redis.publish('timeline:public:local', @payload) if @status.local?
end
def remove_from_media
return unless @status.distributable?
redis.publish('timeline:public:media', @payload)
redis.publish('timeline:public:local:media', @payload) if @status.local?
end
def remove_from_direct
@mentions.each do |mention|
Redis.current.publish("timeline:direct:#{mention.account.id}", @payload) if mention.account.local?
end
Redis.current.publish("timeline:direct:#{@account.id}", @payload) if @account.local?
end
def lock_options
{ redis: Redis.current, key: "distribute:#{@status.id}" }
end
end
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