Add emoji reactions to trends

app/models/emoji_reaction.rb

@@ -28,6 +28,8 @@ class EmojiReaction < ApplicationRecord
 
   has_one :notification, as: :activity, dependent: :destroy
 
+  validate :status_emoji_reactions_count
+
   after_create :refresh_cache
   after_destroy :refresh_cache
   after_destroy :invalidate_cleanup_info
@@ -50,4 +52,10 @@ class EmojiReaction < ApplicationRecord
     query = query.where(arel_table[:id].gt(since_id)) if since_id.present?
     query
   end
+
+  def status_emoji_reactions_count
+    if status && account && status.emoji_reactions.where(account: account).count >= EMOJI_REACTION_PER_ACCOUNT_LIMIT
+      raise Mastodon::ValidationError, I18n.t('reactions.errors.limit_reached')
+    end
+   end
 end

app/models/status.rb

@@ -339,8 +339,8 @@ class Status < ApplicationRecord
   end
 
   def refresh_emoji_reactions_grouped_by_name!
-    generate_emoji_reactions_grouped_by_name.tap do |emoji_reactions|
-      update_status_stat!(emoji_reactions: emoji_reactions)
+    generate_emoji_reactions_grouped_by_name.tap do |emoji_reactions_json|
+      update_status_stat!(emoji_reactions: emoji_reactions_json, emoji_reactions_count: emoji_reactions.size)
     end
   end
 

app/models/status_stat.rb

@@ -4,14 +4,15 @@
 #
 # Table name: status_stats
 #
-#  id               :bigint(8)        not null, primary key
-#  status_id        :bigint(8)        not null
-#  replies_count    :bigint(8)        default(0), not null
-#  reblogs_count    :bigint(8)        default(0), not null
-#  favourites_count :bigint(8)        default(0), not null
-#  created_at       :datetime         not null
-#  updated_at       :datetime         not null
-#  emoji_reactions  :string
+#  id                    :bigint(8)        not null, primary key
+#  status_id             :bigint(8)        not null
+#  replies_count         :bigint(8)        default(0), not null
+#  reblogs_count         :bigint(8)        default(0), not null
+#  favourites_count      :bigint(8)        default(0), not null
+#  created_at            :datetime         not null
+#  updated_at            :datetime         not null
+#  emoji_reactions       :string
+#  emoji_reactions_count :integer          default(0), not null
 #
 
 class StatusStat < ApplicationRecord
@@ -35,6 +36,10 @@ class StatusStat < ApplicationRecord
     attributes['emoji_reactions'] || ''
   end
 
+  def emoji_reactions_count
+    [attributes['emoji_reactions_count'], 0].max
+  end
+
   private
 
   def reset_parent_cache

app/models/trends/statuses.rb

@@ -97,7 +97,7 @@ class Trends::Statuses < Trends::Base
   def calculate_scores(statuses, at_time)
     items = statuses.map do |status|
       expected  = 1.0
-      observed  = (status.reblogs_count + status.favourites_count).to_f
+      observed  = (status.reblogs_count + status.favourites_count + status.emoji_reactions_count * 0.3).to_f
 
       score = if expected > observed || observed < options[:threshold]
                 0