require_dependency "think_feel_do_engine/application_controller"

module ThinkFeelDoEngine
  module BitMaker
    # Enables Admins to create, update, delete, and view the slideshow content
    class SlideshowsController < ApplicationController
      before_action :authenticate_user!, :set_arm
      before_action :build_slideshow, only: [:create]
      before_action :find_slideshow, only: [:show, :edit, :update, :destroy]
      load_and_authorize_resource except: [:index, :new]

      def index
        authorize! :index, BitCore::Slideshow
        @slideshows = @arm
                      .bit_core_slideshows
      end

      def show
        @anchors = SlideshowAnchor
                   .where(bit_core_slideshow_id: @slideshow.id)
                   .group_by(&:target_name)
      end

      def new
        @slideshow = @arm.bit_core_slideshows.build
        authorize! :create, @slideshow
      end

      def create
        if @slideshow.save
          @content_provider =
            @arm
            .bit_core_tools
            .find_by_type("Tools::Learn")
            .add_module(@slideshow.title)
            .add_content_provider(
              "BitCore::ContentProviders::SlideshowProvider"
            )
          @content_provider.update(source_content: @slideshow)
          redirect_to arm_bit_maker_slideshows_url(@arm),
                      notice: "Successfully created slideshow"
        else
          flash.now[:alert] = @slideshow.errors.full_messages.join(", ")
          render :new
        end
      end

      def edit
      end

      def update
        if @slideshow.update(slideshow_params)
          redirect_to arm_bit_maker_slideshows_url(@arm),
                      notice: "Successfully updated slideshow"
        else
          flash.now[:alert] = @slideshow.errors.full_messages.join(", ")
          render :edit
        end
      end

      def destroy
        if @slideshow.destroy
          redirect_to arm_bit_maker_slideshows_url(@arm),
                      notice: "Slideshow deleted."
        else
          redirect_to arm_bit_maker_slideshows_url(@arm),
                      alert: @slideshow.errors.full_messages.join(", ")
        end
      end

      private

      # Needed b/c default CanCan looks for "Slideshow & @slideshow"
      def build_slideshow
        @slideshow = @arm.bit_core_slideshows.build(slideshow_params)
      end

      # Needed b/c default CanCan looks for "Slideshow & @slideshow"
      def find_slideshow
        @slideshow =
          @arm
          .bit_core_slideshows
          .find(params[:id])
      end

      def set_arm
        @arm = Arm.find(params[:arm_id])
      end

      def slideshow_params
        params.require(:slideshow).permit(:title) if params[:slideshow]
      end
    end
  end
end