# frozen_string_literal: true

module Alchemy
  module Admin
    class PicturesController < Alchemy::Admin::ResourcesController
      include UploaderResponses
      include ArchiveOverlay

      helper "alchemy/admin/tags"

      before_action :load_resource,
        only: [:show, :edit, :update, :url, :destroy, :info]

      before_action :set_size, only: [:index, :show, :edit_multiple]

      authorize_resource class: Alchemy::Picture

      before_action(only: :assign) do
        @picture = Picture.find(params[:id])
      end

      def index
        @query = Picture.ransack(search_filter_params[:q])
        @pictures = filtered_pictures.includes(:thumbs)

        if in_overlay?
          archive_overlay
        end
      end

      def show
        @query = Picture.ransack(params[:q])
        @previous = filtered_pictures.where("name < ?", @picture.name).last
        @next = filtered_pictures.where("name > ?", @picture.name).first
        @assignments = @picture.picture_ingredients.joins(element: :page)

        render action: "show"
      end

      def url
        options = picture_url_params.to_h.symbolize_keys.transform_values! do |value|
          value.in?(%w[true false]) ? value == "true" : value
        end
        render json: {
          url: @picture.url(options),
          alt: @picture.name,
          title: Alchemy.t(:image_name, name: @picture.name)
        }
      end

      def create
        @picture = Picture.new(picture_params)
        @picture.name = @picture.humanized_name
        if @picture.save
          render successful_uploader_response(file: @picture)
        else
          render failed_uploader_response(file: @picture)
        end
      end

      def edit_multiple
        @pictures = Picture.where(id: params[:picture_ids])
        @tags = @pictures.collect(&:tag_list).flatten.uniq.join(", ")
      end

      def update
        @message = if @picture.update(picture_params)
          {
            body: Alchemy.t(:picture_updated_successfully, name: @picture.name),
            type: "notice"
          }
        else
          {
            body: Alchemy.t(:picture_update_failed),
            type: "error"
          }
        end
        render :update
      end

      def update_multiple
        @pictures = Picture.find(params[:picture_ids])
        @pictures.each do |picture|
          picture.update_name_and_tag_list!(params)
        end
        flash[:notice] = Alchemy.t("Pictures updated successfully")
        redirect_to_index
      end

      def delete_multiple
        if request.delete? && params[:picture_ids].present?
          pictures = Picture.find(params[:picture_ids])
          names = []
          not_deletable = []
          pictures.each do |picture|
            if picture.deletable?
              names << picture.name
              picture.destroy
            else
              not_deletable << picture.name
            end
          end
          if not_deletable.any?
            flash[:warn] = Alchemy.t(
              "These pictures could not be deleted, because they were in use",
              names: not_deletable.to_sentence
            )
          else
            flash[:notice] = Alchemy.t("Pictures deleted successfully", names: names.to_sentence)
          end
        else
          flash[:warn] = Alchemy.t("Could not delete Pictures")
        end
      rescue => e
        flash[:error] = e.message
      ensure
        redirect_to_index
      end

      def destroy
        name = @picture.name
        @picture.destroy
        flash[:notice] = Alchemy.t("Picture deleted successfully", name: name)
      rescue => e
        flash[:error] = e.message
      ensure
        redirect_to_index
      end

      def filtered_pictures
        pictures = @query.result

        if params[:tagged_with].present?
          pictures = pictures.tagged_with(params[:tagged_with])
        end

        if search_filter_params[:filter].present?
          pictures = apply_filters(pictures)
        end

        pictures = pictures.page(params[:page] || 1).per(items_per_page)

        pictures.order(:name)
      end

      def items_per_page
        if in_overlay?
          case @size
          when "small" then 25
          when "large" then 4
          else
            9
          end
        else
          cookies[:alchemy_pictures_per_page] = params[:per_page] ||
            cookies[:alchemy_pictures_per_page] ||
            pictures_per_page_for_size
        end
      end

      def items_per_page_options
        per_page = pictures_per_page_for_size
        [per_page, per_page * 2, per_page * 4]
      end

      private

      def set_size
        @size = params[:size] || session[:alchemy_pictures_size] || "medium"
        session[:alchemy_pictures_size] = @size
      end

      def pictures_per_page_for_size
        case @size
        when "small" then 60
        when "large" then 12
        else
          20
        end
      end

      def redirect_to_index
        do_redirect_to admin_pictures_path(search_filter_params)
      end

      def search_filter_params
        @_search_filter_params ||= params.except(*COMMON_SEARCH_FILTER_EXCLUDES + [:picture_ids]).permit(
          *common_search_filter_includes + [
            :size,
            :form_field_id
          ]
        )
      end

      def picture_params
        params.require(:picture).permit(:image_file, :upload_hash, :name, :tag_list)
      end

      def picture_url_params
        params.permit(
          :crop_from,
          :crop_size,
          :crop,
          :flatten,
          :format,
          :quality,
          :size,
          :upsample
        )
      end
    end
  end
end