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# frozen_string_literal: true
class Scheduler::FeedCleanupScheduler
include Sidekiq::Worker
include Redisable
sidekiq_options unique: :until_executed, retry: 0
def perform
clean_home_feeds!
clean_list_feeds!
end
private
def clean_home_feeds!
clean_feeds!(inactive_account_ids, :home)
end
def clean_list_feeds!
clean_feeds!(inactive_list_ids, :list)
end
def clean_feeds!(ids, type)
reblogged_id_sets = {}
redis.pipelined do
ids.each do |feed_id|
redis.del(feed_manager.key(type, feed_id))
reblog_key = feed_manager.key(type, feed_id, 'reblogs')
# We collect a future for this: we don't block while getting
# it, but we can iterate over it later.
reblogged_id_sets[feed_id] = redis.zrange(reblog_key, 0, -1)
redis.del(reblog_key)
end
end
# Remove all of the reblog tracking keys we just removed the
# references to.
redis.pipelined do
reblogged_id_sets.each do |feed_id, future|
future.value.each do |reblogged_id|
reblog_set_key = feed_manager.key(type, feed_id, "reblogs:#{reblogged_id}")
redis.del(reblog_set_key)
end
end
end
end
def inactive_account_ids
@inactive_account_ids ||= User.confirmed.inactive.pluck(:account_id)
end
def inactive_list_ids
List.where(account_id: inactive_account_ids).pluck(:id)
end
def feed_manager
FeedManager.instance
end
end
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