Introduce the models for clear and favor events

src/api/app/models/decision.rb

@@ -9,6 +9,21 @@ class Decision < ApplicationRecord
     cleared: 0,
     favor: 1
   }
+
+  after_create :create_event
+
+  def create_event
+    case kind
+    when 'cleared'
+      Event::ClearedDecision.create(event_parameters)
+    else
+      Event::FavoredDecision.create(event_parameters)
+    end
+  end
+
+  def event_parameters
+    { id: id, moderator_id: moderator.id, reason: reason }
+  end
 end
 
 # == Schema Information

src/api/app/models/event/base.rb

@@ -273,6 +273,28 @@ def moderators
       User.admins.or(User.staff)
     end
 
+    def reporters
+      decision = Decision.find(payload['id'])
+      decision.reports.map(&:user)
+    end
+
+    def offenders
+      decision = Decision.find(payload['id'])
+      reportables = decision.reports.map(&:reportable)
+      reportables.map do |reportable|
+        case reportable
+        when Package, Project
+          reportable.maintainers
+        when User
+          reportable
+        when BsRequest
+          User.find_by(login: reportable.creator)
+        when Comment
+          reportable.user
+        end
+      end
+    end
+
     def _roles(role, project, package = nil)
       return [] unless project
 

src/api/app/models/event/cleared_decision.rb

@@ -0,0 +1,12 @@
+module Event
+  class ClearedDecision < Base
+    receiver_roles :reporter
+    self.description = 'Reported content has been cleared'
+
+    payload_keys :id, :reason, :moderator_id
+
+    def parameters_for_notification
+      super.merge(notifiable_type: 'Decision')
+    end
+  end
+end

src/api/app/models/event/favored_decision.rb

@@ -0,0 +1,12 @@
+module Event
+  class FavoredDecision < Base
+    receiver_roles :reporter, :offender
+    self.description = 'Reported content has been favored'
+
+    payload_keys :id, :reason, :moderator_id
+
+    def parameters_for_notification
+      super.merge(notifiable_type: 'Decision')
+    end
+  end
+end