fedibird-fe/app/presenters/account_relationships_presenter.rb
2022-05-11 00:48:03 +09:00

161 lines
8.6 KiB
Ruby

# frozen_string_literal: true
class AccountRelationshipsPresenter
attr_reader :following, :showing_reblogs, :notifying, :delivery_following, :followed_by, :subscribing, :blocking, :blocked_by,
:muting, :muting_notifications, :requested, :domain_blocking,
:endorsed, :account_note
def initialize(account_ids, current_account_id, **options)
@account_ids = account_ids.map { |a| a.is_a?(Account) ? a.id : a.to_i }.uniq
@current_account_id = current_account_id
@following = cached[:following]
@showing_reblogs = cached[:showing_reblogs]
@notifying = cached[:notifying]
@delivery_following = cached[:delivery_following]
@followed_by = cached[:followed_by]
@subscribing = cached[:subscribing]
@blocking = cached[:blocking]
@blocked_by = cached[:blocked_by]
@muting = cached[:muting]
@muting_notifications = cached[:muting_notifications]
@requested = cached[:requested]
@domain_blocking = cached[:domain_blocking]
@endorsed = cached[:endorsed]
@account_note = cached[:account_note]
if current_account_id.present? && !account_ids.empty?
result = ActiveRecord::Base.connection.select_all(ActiveRecord::Base.sanitize_sql_array([<<-SQL.squish, account_ids: @uncached_account_ids, current_account_id: @current_account_id])).to_a.first
with
followings as (select * from follows where account_id = :current_account_id and target_account_id in (:account_ids)),
follow_requesteds as (select * from follow_requests where account_id = :current_account_id and target_account_id in (:account_ids)),
filter_mutes as (select * from mutes where account_id = :current_account_id and target_account_id in (:account_ids)),
subscribe_lists as (select target_account_id, coalesce(list_id, -1) as id, json_object_agg('reblogs', show_reblogs) as reblogs from account_subscribes where account_id = :current_account_id and target_account_id in (:account_ids) group by target_account_id, id)
select
(select string_agg(target_account_id::text, ',') from followings) as following,
(select string_agg(target_account_id::text, ',') from (select target_account_id from followings where show_reblogs union all select target_account_id from follow_requesteds where show_reblogs) a) as showing_reblogs,
(select string_agg(target_account_id::text, ',') from (select target_account_id from followings where notify union all select target_account_id from follow_requesteds where notify) a) as notifying,
(select string_agg(target_account_id::text, ',') from (select target_account_id from followings where delivery union all select target_account_id from follow_requesteds where delivery) a) as delivery_following,
(select string_agg(target_account_id::text, ',') from follow_requesteds) as requested,
(select string_agg(account_id::text, ',') from follows where target_account_id = :current_account_id and account_id in (:account_ids)) as followed_by,
(select json_object_agg(list.target_account_id, list.val)
from (select target_account_id, json_object_agg(lists.id, lists.reblogs) as val from subscribe_lists as lists group by target_account_id) as list) as subscribing,
(select string_agg(target_account_id::text, ',') from blocks where account_id = :current_account_id and target_account_id in (:account_ids)) as blocking,
(select string_agg(account_id::text, ',') from blocks where target_account_id = :current_account_id and account_id in (:account_ids)) as blocked_by,
(select string_agg(target_account_id::text, ',') from filter_mutes) as muting,
(select string_agg(target_account_id::text, ',') from filter_mutes where hide_notifications) as muting_notifications,
(select string_agg(adb.account_id::text, ',') from accounts a join account_domain_blocks adb on a.domain = adb.domain where adb.account_id = :current_account_id and a.id in (:account_ids)) as domain_blocking,
(select string_agg(target_account_id::text, ',') from account_pins where account_id = :current_account_id and target_account_id in (:account_ids)) as endorsed,
(select json_object_agg(n.target_account_id, n.val)
from (select target_account_id, json_object_agg('comment', comment) as val from account_notes where account_id = :current_account_id and target_account_id in (:account_ids) group by target_account_id) as n) as account_note
SQL
@following.merge!(mapping_from_string(result['following']))
@showing_reblogs.merge!(mapping_from_string(result['showing_reblogs']))
@notifying.merge!(mapping_from_string(result['notifying']))
@delivery_following.merge!(mapping_from_string(result['delivery_following']))
@followed_by.merge!(mapping_from_string(result['followed_by']))
@subscribing.merge!(mapping_from_json(result['subscribing']))
@blocking.merge!(mapping_from_string(result['blocking']))
@blocked_by.merge!(mapping_from_string(result['blocked_by']))
@muting.merge!(mapping_from_string(result['muting']))
@muting_notifications.merge!(mapping_from_string(result['muting_notifications']))
@requested.merge!(mapping_from_string(result['requested']))
@domain_blocking.merge!(mapping_from_string(result['domain_blocking']))
@endorsed.merge!(mapping_from_string(result['endorsed']))
@account_note.merge!(mapping_from_json(result['account_note']))
cache_uncached!
end
@following.merge!(options[:following_map] || {})
@showing_reblogs.merge!(options[:showing_reblogs_map] || {})
@notifying.merge!(options[:notifying_map] || {})
@delivery_following.merge!(options[:delivery_following_map] || {})
@followed_by.merge!(options[:followed_by_map] || {})
@subscribing.merge!(options[:subscribing_map] || {})
@blocking.merge!(options[:blocking_map] || {})
@blocked_by.merge!(options[:blocked_by_map] || {})
@muting.merge!(options[:muting_map] || {})
@requested.merge!(options[:requested_map] || {})
@domain_blocking.merge!(options[:domain_blocking_map] || {})
@endorsed.merge!(options[:endorsed_map] || {})
@account_note.merge!(options[:account_note_map] || {})
end
private
def mapping_from_string(string)
return {} if string.blank?
string&.split(',')&.map(&:to_i)&.index_with(true) || {}
end
def mapping_from_json(json)
return {} if json.blank?
(Oj.load(json, mode: :strict, symbol_keys: true) || {}).tap do |json_data|
json_data.keys.each do |key|
json_data[(Integer(key.to_s) rescue key) || key] = json_data.delete(key)
end
end
end
def cached
return @cached if defined?(@cached)
@cached = {
following: {},
showing_reblogs: {},
notifying: {},
delivery_following: {},
followed_by: {},
subscribing: {},
blocking: {},
blocked_by: {},
muting: {},
muting_notifications: {},
requested: {},
domain_blocking: {},
endorsed: {},
account_note: {},
}
@uncached_account_ids = []
@account_ids.each do |account_id|
maps_for_account = Rails.cache.read("relationship:#{@current_account_id}:#{account_id}")
if maps_for_account.is_a?(Hash)
@cached.deep_merge!(maps_for_account)
else
@uncached_account_ids << account_id
end
end
@cached
end
def cache_uncached!
@uncached_account_ids.each do |account_id|
maps_for_account = {
following: { account_id => following[account_id] },
showing_reblogs: { account_id => showing_reblogs[account_id] },
notifying: { account_id => notifying[account_id] },
delivery_following: { account_id => delivery_following[account_id] },
followed_by: { account_id => followed_by[account_id] },
subscribing: { account_id => subscribing[account_id] },
blocking: { account_id => blocking[account_id] },
blocked_by: { account_id => blocked_by[account_id] },
muting: { account_id => muting[account_id] },
muting_notifications: { account_id => muting_notifications[account_id] },
requested: { account_id => requested[account_id] },
domain_blocking: { account_id => domain_blocking[account_id] },
endorsed: { account_id => endorsed[account_id] },
account_note: { account_id => account_note[account_id] },
}
Rails.cache.write("relationship:#{@current_account_id}:#{account_id}", maps_for_account, expires_in: 1.day)
end
end
end