it3s/meppit

class GeoDataController < ObjectsController
  before_action :require_login, except: [:index, :show, :maps, :search_by_name, :tile]
  before_action :find_object,   except: [:index, :new, :create, :search_by_name, :bulk_add_map, :tile]

  def maps
    @maps = paginate @geo_data.maps
    render layout: nil if request.xhr?
  end

  def add_map
    add_mapping_to Map
  end

  def bulk_add_map
    msg, status = (map =  find_map) ? bulk_add(map) : invalid_map
    render json: {flash: flash_xhr(msg)}, status: status
  end

  def tile
    @geo_data_collection = object_collection.tile(params[:zoom].to_i, params[:x].to_i, params[:y].to_i)
    render geojson: @geo_data_collection
  end

  private

    def find_map
      Map.find_by(id: params[:map])
    end

    def bulk_add(map)
      geo_data_ids = params.fetch(:geo_data_ids, '').split(',')
      if geo_data_ids.empty?
        [t('geo_data.bulk_add_map.empty_selection'), :unprocessable_entity]
      else
        geo_data_ids.each { |_id| map.mappings.create geo_data_id: _id }
        [t('geo_data.bulk_add_map.added', count: geo_data_ids.count, name: map.name), :ok]
      end
    end

    def invalid_map
      [t("geo_data.add_map.invalid"), :unprocessable_entity]
    end
end