class Tracking::MilestonesController < Tracking::BaseController
  include Translatable
  include ImageAttributes

  before_action :load_milestoneable, only: [:index, :new, :create, :edit, :update, :destroy]
  before_action :load_milestone, only: [:edit, :update, :destroy]
  before_action :load_statuses, only: [:index, :new, :create, :edit, :update]
  helper_method :milestoneable_path

  def index
  end

  def new
    @milestone = @milestoneable.milestones.new
  end

  def create
    @milestone = @milestoneable.milestones.new(milestone_params)
    if @milestone.save
      redirect_to milestoneable_path, notice: t("tracking.milestones.create.notice")
    else
      render :new
    end
  end

  def edit
  end

  def update
    if @milestone.update(milestone_params)
      redirect_to milestoneable_path, notice: t("tracking.milestones.update.notice")
    else
      render :edit
    end
  end

  def destroy
    @milestone.destroy
    redirect_to milestoneable_path, notice: t("tracking.milestones.delete.notice")
  end

  private

    def milestone_params
      documents_attributes = [:id, :title, :attachment, :cached_attachment, :user_id, :_destroy]
      attributes = [:publication_date, :status_id,
                    translation_params(Milestone),
                    image_attributes: image_attributes, documents_attributes: documents_attributes]

      params.require(:milestone).permit(*attributes)
    end

    def load_milestoneable
      @milestoneable = milestoneable
    end

    def milestoneable
      raise "Implement in subclass"
    end

    def load_milestone
      @milestone = @milestoneable.milestones.find(params[:id])
    end

    def load_statuses
      @statuses = Milestone::Status.all
    end

    def milestoneable_path
      polymorphic_path([current_user.administrator? ? :admin : :tracking,
                        *resource_hierarchy_for(@milestone.milestoneable)])
    end
end