Fix rubocop issues, introduce usage of frozen literal to improve performance

app/models/account.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class Account < ApplicationRecord
   include Targetable
   include PgSearch
@@ -92,11 +94,11 @@ class Account < ApplicationRecord
   end
 
   def favourited?(status)
-    (status.reblog? ? status.reblog : status).favourites.where(account: self).count > 0
+    (status.reblog? ? status.reblog : status).favourites.where(account: self).count.positive?
   end
 
   def reblogged?(status)
-    (status.reblog? ? status.reblog : status).reblogs.where(account: self).count > 0
+    (status.reblog? ? status.reblog : status).reblogs.where(account: self).count.positive?
   end
 
   def keypair
@@ -115,8 +117,8 @@ class Account < ApplicationRecord
   def avatar_remote_url=(url)
     self.avatar = URI.parse(url) unless self[:avatar_remote_url] == url
     self[:avatar_remote_url] = url
-  rescue OpenURI::HTTPError
-    #
+  rescue OpenURI::HTTPError => e
+    Rails.logger.debug "Error fetching remote avatar: #{e}"
   end
 
   def object_type

app/models/application_record.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class ApplicationRecord < ActiveRecord::Base
   self.abstract_class = true
 end

app/models/block.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class Block < ApplicationRecord
   belongs_to :account
   belongs_to :target_account, class_name: 'Account'

app/models/concerns/paginable.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Paginable
   extend ActiveSupport::Concern
 

app/models/concerns/streamable.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Streamable
   extend ActiveSupport::Concern
 

app/models/concerns/targetable.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Targetable
   extend ActiveSupport::Concern
 

app/models/domain_block.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class DomainBlock < ApplicationRecord
   validates :domain, presence: true, uniqueness: true
 

app/models/favourite.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class Favourite < ApplicationRecord
   include Paginable
   include Streamable

app/models/feed.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class Feed
   def initialize(type, account)
     @type    = type
@@ -28,6 +30,6 @@ class Feed
   end
 
   def redis
-    $redis
+    Redis.current
   end
 end

app/models/follow.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class Follow < ApplicationRecord
   include Paginable
   include Streamable

app/models/follow_suggestion.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class FollowSuggestion
   class << self
     def get(for_account_id, limit = 10)

app/models/media_attachment.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class MediaAttachment < ApplicationRecord
   IMAGE_MIME_TYPES = ['image/jpeg', 'image/png', 'image/gif'].freeze
   VIDEO_MIME_TYPES = ['video/webm', 'video/mp4'].freeze
@@ -6,9 +8,9 @@ class MediaAttachment < ApplicationRecord
   belongs_to :status,  inverse_of: :media_attachments
 
   has_attached_file :file,
-    styles: -> (f) { file_styles f },
-    processors: -> (f) { f.video? ? [:transcoder] : [:thumbnail] },
-    convert_options: { all: "-strip" }
+                    styles: -> (f) { file_styles f },
+                    processors: -> (f) { f.video? ? [:transcoder] : [:thumbnail] },
+                    convert_options: { all: '-strip' }
   validates_attachment_content_type :file, content_type: IMAGE_MIME_TYPES + VIDEO_MIME_TYPES
   validates_attachment_size :file, less_than: 4.megabytes
 
@@ -20,8 +22,8 @@ class MediaAttachment < ApplicationRecord
 
   def file_remote_url=(url)
     self.file = URI.parse(url)
-  rescue OpenURI::HTTPError
-    #
+  rescue OpenURI::HTTPError => e
+    Rails.logger.debug "Error fetching remote attachment: #{e}"
   end
 
   def image?
@@ -43,19 +45,19 @@ class MediaAttachment < ApplicationRecord
       if f.instance.image?
         {
           original: '100%',
-          small: '510x680>'
+          small: '510x680>',
         }
       else
         {
           small: {
             convert_options: {
               output: {
-                vf: 'scale=\'min(510\, iw):min(680\, ih)\':force_original_aspect_ratio=decrease'
-              }
+                vf: 'scale=\'min(510\, iw):min(680\, ih)\':force_original_aspect_ratio=decrease',
+              },
             },
             format: 'png',
-            time: 1
-          }
+            time: 1,
+          },
         }
       end
     end

app/models/mention.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class Mention < ApplicationRecord
   belongs_to :account, inverse_of: :mentions
   belongs_to :status

app/models/status.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class Status < ApplicationRecord
   include Paginable
   include Streamable
@@ -89,22 +91,17 @@ class Status < ApplicationRecord
 
     def as_public_timeline(account = nil)
       query = joins('LEFT OUTER JOIN accounts ON statuses.account_id = accounts.id').where('accounts.silenced = FALSE')
-
-      unless account.nil?
-        query = filter_timeline(query, account)
-      end
+      query = filter_timeline(query, account) unless account.nil?
 
       query.with_includes.with_counters
     end
 
     def as_tag_timeline(tag, account = nil)
       query = tag.statuses
-        .joins('LEFT OUTER JOIN accounts ON statuses.account_id = accounts.id')
-        .where('accounts.silenced = FALSE')
+                 .joins('LEFT OUTER JOIN accounts ON statuses.account_id = accounts.id')
+                 .where('accounts.silenced = FALSE')
 
-      unless account.nil?
-        query = filter_timeline(query, account)
-      end
+      query = filter_timeline(query, account) unless account.nil?
 
       query.with_includes.with_counters
     end

app/models/stream_entry.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class StreamEntry < ApplicationRecord
   include Paginable
 
@@ -15,7 +17,11 @@ class StreamEntry < ApplicationRecord
   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 : activity.object_type)
+    if orphaned?
+      :activity
+    else
+      targeted? ? :activity : activity.object_type
+    end
   end
 
   def verb

app/models/tag.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class Tag < ApplicationRecord
   has_and_belongs_to_many :statuses
 

app/models/user.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class User < ApplicationRecord
   devise :database_authenticatable, :registerable, :recoverable, :rememberable, :trackable, :validatable, :confirmable