fix: Remove teams on account user destroy (#1766)

app/models/account_user.rb

@@ -32,7 +32,7 @@ class AccountUser < ApplicationRecord
   accepts_nested_attributes_for :account
 
   after_create_commit :notify_creation, :create_notification_setting
-  after_destroy :notify_deletion, :destroy_notification_setting
+  after_destroy :notify_deletion, :remove_user_from_account
 
   validates :user_id, uniqueness: { scope: :account_id }
 
@@ -43,9 +43,8 @@ class AccountUser < ApplicationRecord
     setting.save!
   end
 
-  def destroy_notification_setting
-    setting = user.notification_settings.find_by(account_id: account.id)
-    setting.destroy!
+  def remove_user_from_account
+    ::Agents::DestroyService.new(account: account, user: user).perform
   end
 
   private

app/services/agents/destroy_service.rb

@@ -0,0 +1,30 @@
+class Agents::DestroyService
+  pattr_initialize [:account!, :user!]
+
+  def perform
+    ActiveRecord::Base.transaction do
+      destroy_notification_setting
+      remove_user_from_teams
+      remove_user_from_inboxes
+    end
+  end
+
+  private
+
+  def remove_user_from_inboxes
+    inboxes = account.inboxes.all
+    inbox_members = user.inbox_members.where(inbox_id: inboxes.pluck(:id))
+    inbox_members.destroy_all
+  end
+
+  def remove_user_from_teams
+    teams = account.teams.all
+    team_members = user.team_members.where(team_id: teams.pluck(:id))
+    team_members.destroy_all
+  end
+
+  def destroy_notification_setting
+    setting = user.notification_settings.find_by(account_id: account.id)
+    setting&.destroy!
+  end
+end