module Spree
  module Core
    module Search
      class Base
        attr_accessor :properties

        def initialize(params)
          @properties = {}
          prepare(params)
        end

        def retrieve_products
          base_scope = get_base_scope
          @products_scope = @product_group.apply_on(base_scope)
          curr_page = manage_pagination && keywords ? 1 : page

          @products = @products_scope.includes([:images, :master]).page(curr_page).per(per_page)
        end

        def method_missing(name)
          @properties[name]
        end

        protected
          def get_base_scope
            base_scope = @cached_product_group ? @cached_product_group.products.active : Spree::Product.active
            base_scope = base_scope.in_taxon(taxon) unless taxon.blank?
            base_scope = get_products_conditions_for(base_scope, keywords) unless keywords.blank?

            base_scope = base_scope.on_hand unless Spree::Config[:show_zero_stock_products]
            base_scope = base_scope.group_by_products_id if @product_group.product_scopes.size > 1
            base_scope
          end

          # method should return new scope based on base_scope
          def get_products_conditions_for(base_scope, query)
            base_scope.like_any([:name, :description], query.split)
          end

          def prepare(params)
            @properties[:taxon] = params[:taxon].blank? ? nil : Spree::Taxon.find(params[:taxon])
            @properties[:keywords] = params[:keywords]

            per_page = params[:per_page].to_i
            @properties[:per_page] = per_page > 0 ? per_page : Spree::Config[:products_per_page]
            @properties[:page] = (params[:page].to_i <= 0) ? 1 : params[:page].to_i

            if !params[:order_by_price].blank?
              @product_group = Spree::ProductGroup.new.from_route([params[:order_by_price] + '_by_master_price'])
            elsif params[:product_group_name]
              @cached_product_group = Spree::ProductGroup.find_by_permalink(params[:product_group_name])
              @product_group = Spree::ProductGroup.new
            elsif params[:product_group_query]
              @product_group = Spree::ProductGroup.new.from_route(params[:product_group_query].split('/'))
            else
              @product_group = Spree::ProductGroup.new
            end
            @product_group = @product_group.from_search(params[:search]) if params[:search]
          end
      end
    end
  end
end