module CommentableActions
  extend ActiveSupport::Concern
  include Polymorphic
  include Search
  include DownloadSettingsHelper
  include RemotelyTranslatable

  def index
    @resources = resource_model.all

    @resources = @current_order == "recommendations" && current_user.present? ? @resources.recommendations(current_user) : @resources.for_render
    @resources = @resources.search(@search_terms) if @search_terms.present?
    @resources = @advanced_search_terms.present? ? @resources.filter(@advanced_search_terms) : @resources
    @resources = @resources.tagged_with(@tag_filter) if @tag_filter
    resources_csv = @resources

    @resources = @resources.page(params[:page]).send("sort_by_#{@current_order}")

    index_customization

    @tag_cloud = tag_cloud
    @banners = Banner.in_section(section(resource_model.name)).with_active

    set_resource_votes(@resources)

    set_resources_instance
    @remote_translations = detect_remote_translations(@resources, featured_proposals)

    respond_to do |format|
      format.html
      format.csv { send_data to_csv(resources_csv, resource_model),
                            type: "text/csv",
                            disposition: "attachment",
                            filename: "#{get_resource(resource_model)}.csv" }
    end
  end

  def show
    set_resource_votes(resource)
    @commentable = resource
    @comment_tree = CommentTree.new(@commentable, params[:page], @current_order)
    set_comment_flags(@comment_tree.comments)
    set_resource_instance
    @remote_translations = detect_remote_translations([@resource], @comment_tree.comments)
  end

  def new
    @resource = resource_model.new
    set_geozone
    set_resource_instance
  end

  def suggest
    @limit = 5
    @resources = @search_terms.present? ? resource_relation.search(@search_terms) : nil
  end

  def create
    @resource = resource_model.new(strong_params)
    @resource.author = current_user

    if @resource.save
      track_event
      redirect_path = url_for(controller: controller_name, action: :show, id: @resource.id)
      redirect_to redirect_path, notice: t("flash.actions.create.#{resource_name.underscore}")
    else
      load_categories
      load_geozones
      set_resource_instance
      render :new
    end
  end

  def edit
  end

  def update
    if resource.update(strong_params)
      redirect_to resource, notice: t("flash.actions.update.#{resource_name.underscore}")
    else
      load_categories
      load_geozones
      set_resource_instance
      render :edit
    end
  end

  def map
    @resource = resource_model.new
    @tag_cloud = tag_cloud
  end

  private

    def track_event
      ahoy.track "#{resource_name}_created".to_sym, "#{resource_name}_id": resource.id
    end

    def tag_cloud
      TagCloud.new(resource_model, params[:search])
    end

    def load_geozones
      @geozones = Geozone.all.order(name: :asc)
    end

    def set_geozone
      geozone_id = params[resource_name.to_sym].try(:[], :geozone_id)
      @resource.geozone = Geozone.find(geozone_id) if geozone_id.present?
    end

    def load_categories
      @categories = ActsAsTaggableOn::Tag.category.order(:name)
    end

    def parse_tag_filter
      if params[:tag].present?
        @tag_filter = params[:tag] if ActsAsTaggableOn::Tag.named(params[:tag]).exists?
      end
    end

    def set_resource_votes(instance)
      send("set_#{resource_name}_votes", instance)
    end

    def index_customization
      nil
    end

    def section(resource_name)
      case resource_name
      when "Proposal"
        "proposals"
      when "Debate"
        "debates"
      end
    end

    def featured_proposals
      @featured_proposals ||= []
    end
end