```ruby
class RoomsController < ApplicationController
  before_action :authenticate, except: [:github]

  def index
    @rooms = current_user.rooms
  end

  def create
    @room = Rooms::Creator.new(room_params).call

    if @room.persisted?
      render :show, status: :created
    else
      fail BadRequest, @room.errors.messages
    end
  end

  def join
    membership = Rooms::Joiner.new(user: current_user, room: join_room).call

    if membership.persisted?
      render :show, status: :created
    else
      fail BadRequest, membership.errors.messages
    end
  end

  def left
    Rooms::Leaver.new(member: current_user, room: room).call
    head :no_content
  end

  def switch
    Rooms::Switcher.new(user: current_user, room: room).call
    head :no_content
  end

  def destroy
    Rooms::Destroyer.new(owner: current_user, room: room).call
    head :no_content
  end

  def github
    Rooms::GithubIntegrator.new(room: Room.find_by!(github_token: params[:token]),
                                params: params).call
    head :no_content
  end

  private

  def join_room
    @room ||= Room.find_by! join_room_params
  end

  def room
    @room ||= Room.find params[:id]
  end

  def room_params
    params.require(:room).permit(:name).merge(owner: current_user)
  end

  def join_room_params
    params.require(:room).permit(:join_token)
  end
end
```

Add order in room list
user
```ruby
class RoomsController < ApplicationController
  before_action :authenticate, except: [:github]

  def index
    @rooms = current_user.rooms.order :id
  end

  def create
    @room = Rooms::Creator.new(room_params).call

    if @room.persisted?
      render :show, status: :created
    else
      fail BadRequest, @room.errors.messages
    end
  end

  def join
    membership = Rooms::Joiner.new(user: current_user, room: join_room).call

    if membership.persisted?
      render :show, status: :created
    else
      fail BadRequest, membership.errors.messages
    end
  end

  def left
    Rooms::Leaver.new(member: current_user, room: room).call
    head :no_content
  end

  def switch
    Rooms::Switcher.new(user: current_user, room: room).call
    head :no_content
  end

  def destroy
    Rooms::Destroyer.new(owner: current_user, room: room).call
    head :no_content
  end

  def github
    Rooms::GithubIntegrator.new(room: Room.find_by!(github_token: params[:token]),
                                params: params).call
    head :no_content
  end

  private

  def join_room
    @room ||= Room.find_by! join_room_params
  end

  def room
    @room ||= Room.find params[:id]
  end

  def room_params
    params.require(:room).permit(:name).merge(owner: current_user)
  end

  def join_room_params
    params.require(:room).permit(:join_token)
  end
end
```
assistant