Improve code style

.rubocop.yml

@@ -0,0 +1,14 @@
+Rails:
+  Enabled: true
+
+Metrics/LineLength:
+  Enabled: false
+
+Style/PerlBackrefs:
+  AutoCorrect: false
+
+Style/ClassAndModuleChildren:
+  Enabled: false
+
+Documentation:
+  Enabled: false

app/channels/application_cable/channel.rb

@@ -1,4 +1,3 @@
-# Be sure to restart your server when you modify this file. Action Cable runs in a loop that does not support auto reloading.
 module ApplicationCable
   class Channel < ActionCable::Channel::Base
   end

app/channels/application_cable/connection.rb

@@ -1,4 +1,3 @@
-# Be sure to restart your server when you modify this file. Action Cable runs in a loop that does not support auto reloading.
 module ApplicationCable
   class Connection < ActionCable::Connection::Base
     identified_by :current_user

app/channels/timeline_channel.rb

@@ -1,4 +1,3 @@
-# Be sure to restart your server when you modify this file. Action Cable runs in a loop that does not support auto reloading.
 class TimelineChannel < ApplicationCable::Channel
   def subscribed
     stream_from "timeline:#{current_user.account_id}"

app/controllers/accounts_controller.rb

@@ -7,7 +7,7 @@ class AccountsController < ApplicationController
   def show
     respond_to do |format|
       format.html do
-        @statuses   = @account.statuses.order('id desc').with_includes.with_counters.paginate(page: params[:page], per_page: 10)
+        @statuses = @account.statuses.order('id desc').with_includes.with_counters.paginate(page: params[:page], per_page: 10)
 
         if user_signed_in?
           status_ids  = @statuses.collect { |s| [s.id, s.reblog_of_id] }.flatten.uniq

app/controllers/api/salmon_controller.rb

@@ -3,7 +3,7 @@ class Api::SalmonController < ApiController
   respond_to :txt
 
   def update
-    ProcessInteractionService.new.(request.body.read, @account)
+    ProcessInteractionService.new.call(request.body.read, @account)
     head 201
   end
 

app/controllers/api/subscriptions_controller.rb

@@ -4,7 +4,7 @@ class Api::SubscriptionsController < ApiController
 
   def show
     if @account.subscription(api_subscription_url(@account.id)).valid?(params['hub.topic'])
-      @account.update(subscription_expires_at: Time.now + ((params['hub.lease_seconds'] || 86400).to_i).seconds)
+      @account.update(subscription_expires_at: Time.now.utc + (params['hub.lease_seconds'] || 86_400).to_i.seconds)
       render plain: HTMLEntities.new.encode(params['hub.challenge']), status: 200
     else
       head 404
@@ -15,7 +15,7 @@ class Api::SubscriptionsController < ApiController
     body = request.body.read
 
     if @account.subscription(api_subscription_url(@account.id)).verify(body, request.headers['HTTP_X_HUB_SIGNATURE'])
-      ProcessFeedService.new.(body, @account)
+      ProcessFeedService.new.call(body, @account)
       head 201
     else
       head 202

app/controllers/api/v1/accounts_controller.rb

@@ -19,19 +19,19 @@ class Api::V1::AccountsController < ApiController
   end
 
   def follow
-    @follow = FollowService.new.(current_user.account, @account.acct)
+    @follow = FollowService.new.call(current_user.account, @account.acct)
     set_relationship
     render action: :relationship
   end
 
   def unfollow
-    @unfollow = UnfollowService.new.(current_user.account, @account)
+    @unfollow = UnfollowService.new.call(current_user.account, @account)
     set_relationship
     render action: :relationship
   end
 
   def relationships
-    ids = params[:id].is_a?(Enumerable) ? params[:id].map { |id| id.to_i } : [params[:id].to_i]
+    ids = params[:id].is_a?(Enumerable) ? params[:id].map(&:to_i) : [params[:id].to_i]
     @accounts    = Account.find(ids)
     @following   = Account.following_map(ids, current_user.account_id)
     @followed_by = Account.followed_by_map(ids, current_user.account_id)

app/controllers/api/v1/follows_controller.rb

@@ -3,11 +3,9 @@ class Api::V1::FollowsController < ApiController
   respond_to    :json
 
   def create
-    if params[:uri].blank?
-      raise ActiveRecord::RecordNotFound
-    end
+    raise ActiveRecord::RecordNotFound if params[:uri].blank?
 
-    @account = FollowService.new.(current_user.account, params[:uri]).try(:target_account)
+    @account = FollowService.new.call(current_user.account, params[:uri]).try(:target_account)
     render action: :show
   end
 end

app/controllers/api/v1/statuses_controller.rb

@@ -13,34 +13,34 @@ class Api::V1::StatusesController < ApiController
   end
 
   def create
-    @status = PostStatusService.new.(current_user.account, params[:status], params[:in_reply_to_id].blank? ? nil : Status.find(params[:in_reply_to_id]), params[:media_ids])
+    @status = PostStatusService.new.call(current_user.account, params[:status], params[:in_reply_to_id].blank? ? nil : Status.find(params[:in_reply_to_id]), params[:media_ids])
     render action: :show
   end
 
   def destroy
     @status = Status.where(account_id: current_user.account).find(params[:id])
-    RemoveStatusService.new.(@status)
+    RemoveStatusService.new.call(@status)
     render_empty
   end
 
   def reblog
-    @status = ReblogService.new.(current_user.account, Status.find(params[:id])).reload
+    @status = ReblogService.new.call(current_user.account, Status.find(params[:id])).reload
     render action: :show
   end
 
   def unreblog
-    RemoveStatusService.new.(Status.where(account_id: current_user.account, reblog_of_id: params[:id]).first!)
+    RemoveStatusService.new.call(Status.where(account_id: current_user.account, reblog_of_id: params[:id]).first!)
     @status = Status.find(params[:id])
     render action: :show
   end
 
   def favourite
-    @status = FavouriteService.new.(current_user.account, Status.find(params[:id])).status.reload
+    @status = FavouriteService.new.call(current_user.account, Status.find(params[:id])).status.reload
     render action: :show
   end
 
   def unfavourite
-    @status = UnfavouriteService.new.(current_user.account, Status.find(params[:id])).status.reload
+    @status = UnfavouriteService.new.call(current_user.account, Status.find(params[:id])).status.reload
     render action: :show
   end
 

app/controllers/application_controller.rb

@@ -11,7 +11,7 @@ class ApplicationController < ActionController::Base
   rescue_from ActiveRecord::RecordNotFound, with: :not_found
 
   def raise_not_found
-    raise ActionController::RoutingError.new("No route matches #{params[:unmatched_route]}")
+    raise ActionController::RoutingError, "No route matches #{params[:unmatched_route]}"
   end
 
   protected

app/controllers/auth/registrations_controller.rb

@@ -1,13 +1,13 @@
 class Auth::RegistrationsController < Devise::RegistrationsController
   layout 'auth'
 
-  before_filter :configure_sign_up_params, only: [:create]
+  before_action :configure_sign_up_params, only: [:create]
 
   protected
 
   def build_resource(hash = nil)
     super(hash)
-    self.resource.build_account if self.resource.account.nil?
+    resource.build_account if resource.account.nil?
   end
 
   def configure_sign_up_params

app/controllers/home_controller.rb

@@ -7,7 +7,7 @@ class HomeController < ApplicationController
     @mentions     = Feed.new(:mentions, current_user.account).get(20)
     @token        = find_or_create_access_token.token
   end
-  
+
   private
 
   def authenticate_user!

app/controllers/settings_controller.rb

@@ -1,6 +1,6 @@
 class SettingsController < ApplicationController
   layout 'auth'
-  
+
   before_action :authenticate_user!
   before_action :set_account
 

app/controllers/stream_entries_controller.rb

@@ -13,7 +13,7 @@ class StreamEntriesController < ApplicationController
       @descendants = @stream_entry.activity.descendants
 
       if user_signed_in?
-        status_ids  = [@stream_entry.activity_id] + @ancestors.map { |s| s.id } + @descendants.map { |s| s.id }
+        status_ids  = [@stream_entry.activity_id] + @ancestors.map(&:id) + @descendants.map(&:id)
         @favourited = Status.favourites_map(status_ids, current_user.account_id)
         @reblogged  = Status.reblogs_map(status_ids, current_user.account_id)
       else

app/controllers/xrd_controller.rb

@@ -31,9 +31,9 @@ class XrdController < ApplicationController
 
   def pem_to_magic_key(public_key)
     modulus, exponent = [public_key.n, public_key.e].map do |component|
-      result = "";
+      result = '';
 
-      until component == 0 do
+      until component.zero?
         result << [component % 256].pack('C')
         component >>= 8
       end
@@ -41,7 +41,7 @@ class XrdController < ApplicationController
       result.reverse!
     end
 
-    (["RSA";] + [modulus, exponent].map { |n| Base64.urlsafe_encode64(n) }).join('.')
+    (['RSA';] + [modulus, exponent].map { |n| Base64.urlsafe_encode64(n) }).join('.')
   end
 
   def resource_param

app/helpers/atom_builder_helper.rb

@@ -200,6 +200,6 @@ module AtomBuilderHelper
   end
 
   def single_link_avatar(xml, account, size, px)
-    xml.link('rel' => 'avatar', 'type' => account.avatar_content_type, 'media:width' => px, 'media:height' =>px, 'href' => full_asset_url(account.avatar.url(size, false)))
+    xml.link('rel' => 'avatar', 'type' => account.avatar_content_type, 'media:width' => px, 'media:height' => px, 'href' => full_asset_url(account.avatar.url(size, false)))
   end
 end

app/helpers/stream_entries_helper.rb

@@ -17,15 +17,15 @@ module StreamEntriesHelper
   end
 
   def relative_time(date)
-    date < 5.days.ago ? date.strftime("%d.%m.%Y";) : "#{time_ago_in_words(date)} ago"
+    date < 5.days.ago ? date.strftime('%d.%m.%Y';) : "#{time_ago_in_words(date)} ago"
   end
 
   def reblogged_by_me_class(status)
-    user_signed_in? && @reblogged.has_key?(status.id) ? 'reblogged' : ''
+    user_signed_in? && @reblogged.key?(status.id) ? 'reblogged' : ''
   end
 
   def favourited_by_me_class(status)
-    user_signed_in? && @favourited.has_key?(status.id) ? 'favourited' : ''
+    user_signed_in? && @favourited.key?(status.id) ? 'favourited' : ''
   end
 
   def proper_status(status)

app/lib/formatter.rb

@@ -35,7 +35,7 @@ class Formatter
   def link_mentions(html, mentions)
     html.gsub(Account::MENTION_RE) do |match|
       acct    = Account::MENTION_RE.match(match)[1]
-      mention = mentions.find { |item| item.account.acct.eql?(acct) }
+      mention = mentions.find { |item| item.account.acct.casecmp(acct).zero? }
 
       mention.nil? ? match : mention_html(match, mention.account)
     end

app/models/account.rb

@@ -2,7 +2,7 @@ class Account < ApplicationRecord
   include Targetable
 
   MENTION_RE = /(?:^|\s|\.|>)@([a-z0-9_]+(?:@[a-z0-9\.\-]+)?)/i
-  IMAGE_MIME_TYPES = ['image/jpeg', 'image/png', 'image/gif']
+  IMAGE_MIME_TYPES = ['image/jpeg', 'image/png', 'image/gif'].freeze
 
   # Local users
   has_one :user, inverse_of: :account
@@ -45,11 +45,11 @@ class Account < ApplicationRecord
   scope :expiring, -> (time) { where(subscription_expires_at: nil).or(where('subscription_expires_at < ?', time)).remote.with_followers }
 
   def follow!(other_account)
-    self.active_relationships.where(target_account: other_account).first_or_create!(target_account: other_account)
+    active_relationships.where(target_account: other_account).first_or_create!(target_account: other_account)
   end
 
   def unfollow!(other_account)
-    follow = self.active_relationships.find_by(target_account: other_account)
+    follow = active_relationships.find_by(target_account: other_account)
     follow.destroy unless follow.nil?
   end
 
@@ -58,15 +58,15 @@ class Account < ApplicationRecord
   end
 
   def local?
-    self.domain.nil?
+    domain.nil?
   end
 
   def acct
-    local? ? self.username : "#{self.username}@#{self.domain}"
+    local? ? username : "#{username}@#{domain}"
   end
 
   def subscribed?
-    !self.subscription_expires_at.nil?
+    !subscription_expires_at.nil?
   end
 
   def favourited?(status)
@@ -78,11 +78,11 @@ class Account < ApplicationRecord
   end
 
   def keypair
-    self.private_key.nil? ? OpenSSL::PKey::RSA.new(self.public_key) : OpenSSL::PKey::RSA.new(self.private_key)
+    private_key.nil? ? OpenSSL::PKey::RSA.new(public_key) : OpenSSL::PKey::RSA.new(private_key)
   end
 
   def subscription(webhook_url)
-    OStatus2::Subscription.new(self.remote_url, secret: self.secret, lease_seconds: 86400 * 30, webhook: webhook_url, hub: self.hub_url)
+    OStatus2::Subscription.new(remote_url, secret: secret, lease_seconds: 86_400 * 30, webhook: webhook_url, hub: hub_url)
   end
 
   def ping!(atom_url, hubs)
@@ -91,10 +91,7 @@ class Account < ApplicationRecord
   end
 
   def avatar_remote_url=(url)
-    unless self[:avatar_remote_url] == url
-      self.avatar = URI.parse(url)
-    end
-
+    self.avatar = URI.parse(url) unless self[:avatar_remote_url] == url
     self[:avatar_remote_url] = url
   end
 
@@ -103,26 +100,25 @@ class Account < ApplicationRecord
   end
 
   def to_param
-    self.username
+    username
   end
 
   def self.find_local!(username)
-    self.find_remote!(username, nil)
+    find_remote!(username, nil)
   end
 
   def self.find_remote!(username, domain)
-    table = self.arel_table
-    self.where(table[:username].matches(username)).where(domain: domain).take!
+    where(arel_table[:username].matches(username)).where(domain: domain).take!
   end
 
   def self.find_local(username)
-    self.find_local!(username)
+    find_local!(username)
   rescue ActiveRecord::RecordNotFound
     nil
   end
 
   def self.find_remote(username, domain)
-    self.find_remote!(username, domain)
+    find_remote!(username, domain)
   rescue ActiveRecord::RecordNotFound
     nil
   end

app/models/concerns/streamable.rb

@@ -25,7 +25,7 @@ module Streamable
     end
 
     after_create do
-      self.account.stream_entries.create!(activity: self) if self.account.local?
+      account.stream_entries.create!(activity: self) if account.local?
     end
   end
 end

app/models/favourite.rb

@@ -11,7 +11,7 @@ class Favourite < ApplicationRecord
   end
 
   def title
-    "#{self.account.acct} favourited a status by #{self.status.account.acct}"
+    "#{account.acct} favourited a status by #{status.account.acct}"
   end
 
   def object_type
@@ -19,7 +19,7 @@ class Favourite < ApplicationRecord
   end
 
   def thread
-    self.status
+    status
   end
 
   def target

app/models/feed.rb

@@ -7,11 +7,11 @@ class Feed
   def get(limit, max_id = nil)
     max_id     = '+inf' if max_id.nil?
     unhydrated = redis.zrevrangebyscore(key, "(#{max_id}", '-inf', limit: [0, limit])
-    status_map = Hash.new
+    status_map = {}
 
     # If we're after most recent items and none are there, we need to precompute the feed
     if unhydrated.empty? && max_id == '+inf'
-      PrecomputeFeedService.new.(@type, @account, limit)
+      PrecomputeFeedService.new.call(@type, @account, limit)
     else
       Status.where(id: unhydrated).with_includes.with_counters.each { |status| status_map[status.id.to_s] = status }
       unhydrated.map { |id| status_map[id] }.compact

app/models/follow.rb

@@ -8,11 +8,11 @@ class Follow < ApplicationRecord
   validates :account_id, uniqueness: { scope: :target_account_id }
 
   def verb
-    self.destroyed? ? :unfollow : :follow
+    destroyed? ? :unfollow : :follow
   end
 
   def target
-    self.target_account
+    target_account
   end
 
   def object_type
@@ -20,6 +20,6 @@ class Follow < ApplicationRecord
   end
 
   def title
-    self.destroyed? ? "#{self.account.acct} is no longer following #{self.target_account.acct}" : "#{self.account.acct} started following #{self.target_account.acct}"
+    destroyed? ? "#{account.acct} is no longer following #{target_account.acct}" : "#{account.acct} started following #{target_account.acct}"
   end
 end

app/models/media_attachment.rb

@@ -1,18 +1,18 @@
 class MediaAttachment < ApplicationRecord
-  IMAGE_MIME_TYPES = ['image/jpeg', 'image/png', 'image/gif']
-  VIDEO_MIME_TYPES = ['video/webm']
+  IMAGE_MIME_TYPES = ['image/jpeg', 'image/png', 'image/gif'].freeze
+  VIDEO_MIME_TYPES = ['video/webm'].freeze
 
   belongs_to :account, inverse_of: :media_attachments
   belongs_to :status,  inverse_of: :media_attachments
 
-  has_attached_file :file, styles: lambda { |f| f.instance.image? ? { small: '510x680>' } : { small: { convert_options: { output: { vf: 'scale="min(510\, iw):min(680\, ih)":force_original_aspect_ratio=decrease' } }, format: 'png', time: 1 } } }, processors: lambda { |f| f.video? ? [:transcoder] : [:thumbnail] }
+  has_attached_file :file, styles: -> (f) { f.instance.image? ? { small: '510x680>' } : { small: { convert_options: { output: { vf: 'scale="min(510\, iw):min(680\, ih)":force_original_aspect_ratio=decrease' } }, format: 'png', time: 1 } } }, processors: -> (f) { f.video? ? [:transcoder] : [:thumbnail] }
   validates_attachment_content_type :file, content_type: IMAGE_MIME_TYPES + VIDEO_MIME_TYPES
   validates_attachment_size :file, less_than: 4.megabytes
 
   validates :account, presence: true
 
   def local?
-    self.remote_url.blank?
+    remote_url.blank?
   end
 
   def file_remote_url=(url)

app/models/status.rb

@@ -15,21 +15,21 @@ class Status < ApplicationRecord
 
   validates :account, presence: true
   validates :uri, uniqueness: true, unless: 'local?'
-  validates :text, presence: true, length: { maximum: 500 }, if: Proc.new { |s| s.local? && !s.reblog? }
+  validates :text, presence: true, length: { maximum: 500 }, if: proc { |s| s.local? && !s.reblog? }
 
   scope :with_counters, -> { select('statuses.*, (select count(r.id) from statuses as r where r.reblog_of_id = statuses.id) as reblogs_count, (select count(f.id) from favourites as f where f.status_id = statuses.id) as favourites_count') }
   scope :with_includes, -> { includes(:account, :media_attachments, :stream_entry, mentions: :account, reblog: [:account, mentions: :account], thread: :account) }
 
   def local?
-    self.uri.nil?
+    uri.nil?
   end
 
   def reblog?
-    !self.reblog_of_id.nil?
+    !reblog_of_id.nil?
   end
 
   def reply?
-    !self.in_reply_to_id.nil?
+    !in_reply_to_id.nil?
   end
 
   def verb
@@ -41,11 +41,11 @@ class Status < ApplicationRecord
   end
 
   def content
-    reblog? ? self.reblog.text : self.text
+    reblog? ? reblog.text : text
   end
 
   def target
-    self.reblog
+    reblog
   end
 
   def title
@@ -53,33 +53,33 @@ class Status < ApplicationRecord
   end
 
   def reblogs_count
-    self.attributes['reblogs_count'] || self.reblogs.count
+    attributes['reblogs_count'] || reblogs.count
   end
 
   def favourites_count
-    self.attributes['favourites_count'] || self.favourites.count
+    attributes['favourites_count'] || favourites.count
   end
 
   def ancestors
-    ids      = (Status.find_by_sql(['WITH RECURSIVE search_tree(id, in_reply_to_id, path) AS (SELECT id, in_reply_to_id, ARRAY[id] FROM statuses WHERE id = ? UNION ALL SELECT statuses.id, statuses.in_reply_to_id, path || statuses.id FROM search_tree JOIN statuses ON statuses.id = search_tree.in_reply_to_id WHERE NOT statuses.id = ANY(path)) SELECT id FROM search_tree ORDER BY path DESC', self.id]) - [self]).pluck(:id)
+    ids      = (Status.find_by_sql(['WITH RECURSIVE search_tree(id, in_reply_to_id, path) AS (SELECT id, in_reply_to_id, ARRAY[id] FROM statuses WHERE id = ? UNION ALL SELECT statuses.id, statuses.in_reply_to_id, path || statuses.id FROM search_tree JOIN statuses ON statuses.id = search_tree.in_reply_to_id WHERE NOT statuses.id = ANY(path)) SELECT id FROM search_tree ORDER BY path DESC', id]) - [self]).pluck(:id)
     statuses = Status.where(id: ids).with_counters.with_includes.group_by(&:id)
 
     ids.map { |id| statuses[id].first }
   end
 
   def descendants
-    ids      = (Status.find_by_sql(['WITH RECURSIVE search_tree(id, path) AS (SELECT id, ARRAY[id] FROM statuses WHERE id = ? UNION ALL SELECT statuses.id, path || statuses.id FROM search_tree JOIN statuses ON statuses.in_reply_to_id = search_tree.id WHERE NOT statuses.id = ANY(path)) SELECT id FROM search_tree ORDER BY path', self.id]) - [self]).pluck(:id)
+    ids      = (Status.find_by_sql(['WITH RECURSIVE search_tree(id, path) AS (SELECT id, ARRAY[id] FROM statuses WHERE id = ? UNION ALL SELECT statuses.id, path || statuses.id FROM search_tree JOIN statuses ON statuses.in_reply_to_id = search_tree.id WHERE NOT statuses.id = ANY(path)) SELECT id FROM search_tree ORDER BY path', id]) - [self]).pluck(:id)
     statuses = Status.where(id: ids).with_counters.with_includes.group_by(&:id)
 
     ids.map { |id| statuses[id].first }
   end
 
   def self.as_home_timeline(account)
-    self.where(account: [account] + account.following).with_includes.with_counters
+    where(account: [account] + account.following).with_includes.with_counters
   end
 
   def self.as_mentions_timeline(account)
-    self.where(id: Mention.where(account: account).pluck(:status_id)).with_includes.with_counters
+    where(id: Mention.where(account: account).pluck(:status_id)).with_includes.with_counters
   end
 
   def self.favourites_map(status_ids, account_id)
@@ -87,10 +87,10 @@ class Status < ApplicationRecord
   end
 
   def self.reblogs_map(status_ids, account_id)
-    self.where(reblog_of_id: status_ids).where(account_id: account_id).map { |s| [s.reblog_of_id, true] }.to_h
+    where(reblog_of_id: status_ids).where(account_id: account_id).map { |s| [s.reblog_of_id, true] }.to_h
   end
 
   before_validation do
-    self.text.strip!
+    text.strip!
   end
 end

app/models/stream_entry.rb

@@ -10,16 +10,16 @@ class StreamEntry < ApplicationRecord
 
   validates :account, :activity, presence: true
 
-  STATUS_INCLUDES = [:account, :stream_entry, :media_attachments, mentions: :account, reblog: [:stream_entry, :account, mentions: :account], thread: [:stream_entry, :account]]
+  STATUS_INCLUDES = [:account, :stream_entry, :media_attachments, mentions: :account, reblog: [:stream_entry, :account, mentions: :account], thread: [:stream_entry, :account]].freeze
 
   scope :with_includes, -> { includes(:account, status: STATUS_INCLUDES, favourite: [:account, :stream_entry, status: STATUS_INCLUDES], follow: [:target_account, :stream_entry]) }
 
   def object_type
-    orphaned? ? :activity : (targeted? ? :activity : self.activity.object_type)
+    orphaned? ? :activity : (targeted? ? :activity : activity.object_type)
   end
 
   def verb
-    orphaned? ? :delete : self.activity.verb
+    orphaned? ? :delete : activity.verb
   end
 
   def targeted?
@@ -27,15 +27,15 @@ class StreamEntry < ApplicationRecord
   end
 
   def target
-    orphaned? ? nil : self.activity.target
+    orphaned? ? nil : activity.target
   end
 
   def title
-    orphaned? ? nil : self.activity.title
+    orphaned? ? nil : activity.title
   end
 
   def content
-    orphaned? ? nil : self.activity.content
+    orphaned? ? nil : activity.content
   end
 
   def threaded?
@@ -43,20 +43,20 @@ class StreamEntry < ApplicationRecord
   end
 
   def thread
-    orphaned? ? nil : self.activity.thread
+    orphaned? ? nil : activity.thread
   end
 
   def mentions
-    self.activity.respond_to?(:mentions) ? self.activity.mentions.map { |x| x.account } : []
+    activity.respond_to?(:mentions) ? activity.mentions.map { |x| x.account } : []
   end
 
   def activity
-    self.send(self.activity_type.downcase.to_sym)
+    send(activity_type.downcase.to_sym)
   end
 
   private
 
   def orphaned?
-    self.activity.nil?
+    activity.nil?
   end
 end

app/models/user.rb

@@ -11,8 +11,8 @@ class User < ApplicationRecord
   scope :prolific, -> { joins('inner join statuses on statuses.account_id = users.account_id').select('users.*, count(statuses.id) as statuses_count').group('users.id').order('statuses_count desc') }
   scope :recent,   -> { order('created_at desc') }
   scope :admins,   -> { where(admin: true) }
-  
+
   def admin?
-    self.admin
+    admin
   end
 end

app/services/fetch_atom_service.rb

@@ -17,7 +17,7 @@ class FetchAtomService < BaseService
   private
 
   def process_html(body)
-    Rails.logger.debug "Processing HTML";
+    Rails.logger.debug 'Processing HTML';
 
     page = Nokogiri::HTML(body)
     alternate_link = page.xpath('//link[@rel="alternate"]').find { |link| link['type'] == 'application/atom+xml' }
@@ -27,7 +27,7 @@ class FetchAtomService < BaseService
   end
 
   def process_headers(url, response)
-    Rails.logger.debug "Processing link header";
+    Rails.logger.debug 'Processing link header';
 
     link_header    = LinkHeader.parse(response['Link'].is_a?(Array) ? response['Link'].first : response['Link'])
     alternate_link = link_header.find_link(['rel', 'alternate'], ['type', 'application/atom+xml'])

app/services/fetch_remote_account_service.rb

@@ -1,6 +1,6 @@
 class FetchRemoteAccountService < BaseService
   def call(url)
-    atom_url, body = FetchAtomService.new.(url)
+    atom_url, body = FetchAtomService.new.call(url)
 
     return nil if atom_url.nil?
     return process_atom(atom_url, body)
@@ -18,6 +18,6 @@ class FetchRemoteAccountService < BaseService
 
     Rails.logger.debug "Going to webfinger #{username}@#{domain}"
 
-    return FollowRemoteAccountService.new.("#{username}@#{domain}")
+    return FollowRemoteAccountService.new.call("#{username}@#{domain}")
   end
 end

app/services/fetch_remote_status_service.rb

@@ -1,6 +1,6 @@
 class FetchRemoteStatusService < BaseService
   def call(url)
-    atom_url, body = FetchAtomService.new.(url)
+    atom_url, body = FetchAtomService.new.call(url)
 
     return nil if atom_url.nil?
     return process_atom(atom_url, body)
@@ -9,14 +9,14 @@ class FetchRemoteStatusService < BaseService
   private
 
   def process_atom(url, body)
-    Rails.logger.debug "Processing Atom for remote status";
+    Rails.logger.debug 'Processing Atom for remote status';
 
     xml     = Nokogiri::XML(body)
     account = extract_author(url, xml)
 
     return nil if account.nil?
 
-    statuses = ProcessFeedService.new.(body, account)
+    statuses = ProcessFeedService.new.call(body, account)
 
     return statuses.first
   end
@@ -30,6 +30,6 @@ class FetchRemoteStatusService < BaseService
 
     Rails.logger.debug "Going to webfinger #{username}@#{domain}"
 
-    return FollowRemoteAccountService.new.("#{username}@#{domain}")
+    return FollowRemoteAccountService.new.call("#{username}@#{domain}")
   end
 end

app/services/follow_remote_account_service.rb

@@ -28,11 +28,11 @@ class FollowRemoteAccountService < BaseService
     hubs = feed.xpath('//xmlns:link[@rel="hub"]')
 
     if hubs.empty? || hubs.first.attribute('href').nil?
-      raise Goldfinger::Error, "No PubSubHubbub hubs found";
+      raise Goldfinger::Error, 'No PubSubHubbub hubs found';
     end
 
     if feed.at_xpath('/xmlns:feed/xmlns:author/xmlns:uri').nil?
-      raise Goldfinger::Error, "No author URI found";
+      raise Goldfinger::Error, 'No author URI found';
     end
 
     account.uri     = feed.at_xpath('/xmlns:feed/xmlns:author/xmlns:uri').content
@@ -53,12 +53,12 @@ class FollowRemoteAccountService < BaseService
 
   def get_profile(xml, account)
     author = xml.at_xpath('/xmlns:feed/xmlns:author')
-    update_remote_profile_service.(author, account)
+    update_remote_profile_service.call(author, account)
   end
 
   def magic_key_to_pem(magic_key)
     _, modulus, exponent = magic_key.split('.')
-    modulus, exponent = [modulus, exponent].map { |n| Base64.urlsafe_decode64(n).bytes.inject(0) { |num, byte| (num << 8) | byte } }
+    modulus, exponent = [modulus, exponent].map { |n| Base64.urlsafe_decode64(n).bytes.inject(0) { |a, e| (a << 8) | e } }
 
     key   = OpenSSL::PKey::RSA.new
     key.n = modulus
@@ -75,4 +75,3 @@ class FollowRemoteAccountService < BaseService
     HTTP.timeout(:per_operation, write: 20, connect: 20, read: 50)
   end
 end
-

app/services/follow_service.rb

@@ -3,7 +3,7 @@ class FollowService < BaseService
   # @param [Account] source_account From which to follow
   # @param [String] uri User URI to follow in the form of username@domain
   def call(source_account, uri)
-    target_account = follow_remote_account_service.(uri)
+    target_account = follow_remote_account_service.call(uri)
 
     return nil if target_account.nil? || target_account.id == source_account.id
 
@@ -12,7 +12,7 @@ class FollowService < BaseService
     if target_account.local?
       NotificationMailer.follow(target_account, source_account).deliver_later
     else
-      subscribe_service.(target_account)
+      subscribe_service.call(target_account)
       NotificationWorker.perform_async(follow.stream_entry.id, target_account.id)
     end
 

app/services/post_status_service.rb

@@ -8,7 +8,7 @@ class PostStatusService < BaseService
   def call(account, text, in_reply_to = nil, media_ids = nil)
     status = account.statuses.create!(text: text, thread: in_reply_to)
     attach_media(status, media_ids)
-    process_mentions_service.(status)
+    process_mentions_service.call(status)
     DistributionWorker.perform_async(status.id)
     account.ping!(account_url(account, format: 'atom'), [Rails.configuration.x.hub_url])
     status
@@ -19,7 +19,7 @@ class PostStatusService < BaseService
   def attach_media(status, media_ids)
     return if media_ids.nil? || !media_ids.is_a?(Enumerable)
 
-    media = MediaAttachment.where(status_id: nil).where(id: media_ids.take(4).map { |id| id.to_i })
+    media = MediaAttachment.where(status_id: nil).where(id: media_ids.take(4).map(&:to_i))
     media.update(status_id: status.id)
   end
 

app/services/process_feed_service.rb

@@ -5,7 +5,7 @@ class ProcessFeedService < BaseService
   # @return [Enumerable] created statuses
   def call(body, account)
     xml = Nokogiri::XML(body)
-    update_remote_profile_service.(xml.at_xpath('/xmlns:feed/xmlns:author'), account) unless xml.at_xpath('/xmlns:feed').nil?
+    update_remote_profile_service.call(xml.at_xpath('/xmlns:feed/xmlns:author'), account) unless xml.at_xpath('/xmlns:feed').nil?
     xml.xpath('//xmlns:entry').reverse_each.map { |entry| process_entry(account, entry) }.compact
   end
 
@@ -60,7 +60,7 @@ class ProcessFeedService < BaseService
       href_val = mention_link.attribute('href').value
 
       next if href_val == 'http://activityschema.org/collection/public'
-      
+
       href = Addressable::URI.parse(href_val)
 
       if href.host == Rails.configuration.x.local_domain
@@ -77,7 +77,7 @@ class ProcessFeedService < BaseService
         mentioned_account = Account.find_by(url: href.to_s)
 
         if mentioned_account.nil?
-          mentioned_account = FetchRemoteAccountService.new.(href)
+          mentioned_account = FetchRemoteAccountService.new.call(href)
         end
 
         unless mentioned_account.nil?
@@ -94,7 +94,7 @@ class ProcessFeedService < BaseService
       media = MediaAttachment.where(status: status, remote_url: enclosure_link.attribute('href').value).first
 
       next unless media.nil?
-      
+
       media = MediaAttachment.new(account: status.account, status: status, remote_url: enclosure_link.attribute('href').value)
       media.file_remote_url = enclosure_link.attribute('href').value
       media.save
@@ -128,7 +128,7 @@ class ProcessFeedService < BaseService
   end
 
   def delete_post!(status)
-    remove_status_service.(status)
+    remove_status_service.call(status)
   end
 
   def find_original_status(_xml, id)
@@ -148,7 +148,7 @@ class ProcessFeedService < BaseService
     account  = Account.find_by(username: username, domain: domain)
 
     if account.nil?
-      account = follow_remote_account_service.("#{username}@#{domain}")
+      account = follow_remote_account_service.call("#{username}@#{domain}")
     end
 
     status = Status.new(account: account, uri: target_id(xml), text: target_content(xml), url: target_url(xml), created_at: published(xml), updated_at: updated(xml))

app/services/process_interaction_service.rb

@@ -14,11 +14,11 @@ class ProcessInteractionService < BaseService
     account  = Account.find_by(username: username, domain: domain)
 
     if account.nil?
-      account = follow_remote_account_service.("#{username}@#{domain}")
+      account = follow_remote_account_service.call("#{username}@#{domain}")
     end
 
     if salmon.verify(envelope, account.keypair)
-      update_remote_profile_service.(xml.at_xpath('/xmlns:entry/xmlns:author'), account)
+      update_remote_profile_service.call(xml.at_xpath('/xmlns:entry/xmlns:author'), account)
 
       case verb(xml)
       when :follow
@@ -71,7 +71,7 @@ class ProcessInteractionService < BaseService
     return if status.nil?
 
     if account.id == status.account_id
-      remove_status_service.(status)
+      remove_status_service.call(status)
     end
   end
 
@@ -82,7 +82,7 @@ class ProcessInteractionService < BaseService
   end
 
   def add_post!(body, account)
-    process_feed_service.(body, account)
+    process_feed_service.call(body, account)
   end
 
   def status(xml)

app/services/process_mentions_service.rb

@@ -12,7 +12,7 @@ class ProcessMentionsService < BaseService
 
       if mentioned_account.nil? && !domain.nil?
         begin
-          mentioned_account = follow_remote_account_service.("#{match.first}")
+          mentioned_account = follow_remote_account_service.call(match.first.to_s)
         rescue Goldfinger::Error, HTTP::Error
           mentioned_account = nil
         end

app/services/remove_status_service.rb

@@ -39,7 +39,7 @@ class RemoveStatusService < BaseService
 
   def remove_reblogs(status)
     status.reblogs.each do |reblog|
-      RemoveStatusService.new.(reblog)
+      RemoveStatusService.new.call(reblog)
     end
   end
 

app/workers/distribution_worker.rb

@@ -2,6 +2,6 @@ class DistributionWorker
   include Sidekiq::Worker
 
   def perform(status_id)
-    FanOutOnWriteService.new.(Status.find(status_id))
+    FanOutOnWriteService.new.call(Status.find(status_id))
   end
 end

app/workers/notification_worker.rb

@@ -2,6 +2,6 @@ class NotificationWorker
   include Sidekiq::Worker
 
   def perform(stream_entry_id, target_account_id)
-    SendInteractionService.new.(StreamEntry.find(stream_entry_id), Account.find(target_account_id))
+    SendInteractionService.new.call(StreamEntry.find(stream_entry_id), Account.find(target_account_id))
   end
 end

app/workers/thread_resolve_worker.rb

@@ -3,7 +3,7 @@ class ThreadResolveWorker
 
   def perform(child_status_id, parent_url)
     child_status  = Status.find(child_status_id)
-    parent_status = FetchRemoteStatusService.new.(parent_url)
+    parent_status = FetchRemoteStatusService.new.call(parent_url)
 
     unless parent_status.nil?
       child_status.thread = parent_status