Refactor nested IF statements in Ruby

nested_if_statements.rb

  # Before refactor
  def set_company
    if current_user
      if current_user.company_id.present?
        if current_user.companies.include?(current_user.company)
          current_account = current_user.company
          set_current_tenant(current_account)
        else
          set_current_tenant(nil)
        end
      else
        set_current_tenant(nil)
      end
    else
      set_current_tenant(nil)
    end
  end
  
  
  # After refactor
  def set_company
    if current_user && current_user.company_id.present? && current_user.companies.include?(current_user.company)
      current_account = current_user.company
      set_current_tenant(current_account)
    else
      set_current_tenant(nil)
    end
  end