ePages-de/epages-rest-ruby

require 'epages/utils'
require 'epages/rest/products'

module Epages
  class Product
    include Epages::Utils
    include Epages::REST::Products

    KEYS = %w(product_id name short_description description product_image images price_info for_sale special_offer delivery_weight
              shipping_methods_restricted_to availability_text availability energy_labels_string energy_label_source_file
              product_data_sheet sf_url product_number manufacturer upc ean essential_features search_keywords links tax_class
              stocklevel watchers delivery_period visible manufacturer_product_number min_stock_level product_length
              product_height product_width product_variation_type product_variation_selection).collect(&:to_sym).freeze

    attr_reader *KEYS

    def initialize(data)
      parse_attribute_as_array_of(:images, data.delete(:images), Epages::Image)
      parse_attribute_as_array_of(:links, data.delete(:links), Epages::Link)
      parse_attribute_as(:price_info, data.delete(:priceInfo), Epages::PriceInfo)
      parse_attributes(data)
    end

    # compare the product with another product. 2 products are considered equals if both has
    # the same id, the same name and the same product_number
    def ==(other)
      return false unless other.is_a? Epages::Product
      product_id == other.product_id && name == other.name && product_number == other.product_number
    end

    # returns the name of the shop that belongs the product
    def shop_name
      sf_url[%r{epages\/(\w+)}, 1]
    end

    # returns the host of the shop that belongs to the product
    def host
      URI.parse(sf_url).host
    end

    # returns the list of links
    def links_title
      links.collect(&:rel)
    end

    # returns true if [name] is included in the list of links
    def link?(name)
      links_title.include? name
    end

    # returns the list of slides of the product
    def slideshow
      product_slideshow(self) if link?('slideshow')
    end

    # add an image to the slideshow
    #
    # @param image [String]
    def add_slideshow_image(image)
      product_add_slideshow_image(self, image)
    end

    # remove the image passed from the slideshow and return the new slideshow
    #
    # @param image [String]
    def delete_slideshow_image(image)
      product_delete_slideshow_image(self, image)
    end

    # returns an array containing the slideshow sequence
    def slideshow_sequence
      product_slideshow_sequence(self)
    end

    # updates the order of the sequence with the data passed as parameter
    #
    # @param data [Array]
    def update_slideshow_sequence(data)
      product_update_slideshow_sequence(self, data)
    end

    # returns the list of variations of the product
    def variations
      product_variations(self) if link?('variations')
    end

    # returns the list of custom_attributes of the product
    def custom_attributes
      product_custom_attributes(self) if link?('custom-attributes')
    end

    # returns the categories of the product
    def categories
      product_categories(self) if link?('categories')
    end

    # returns the lowest price of all the variations of the product
    def lowest_price
      product_lowest_price(self) if link?('lowest-price')
    end

    # return a hash with productId and quantity. This format is used for the line_items of Cart
    def to_line_item(quantity = 1)
      {productId: product_id, quantity: quantity}
    end

    alias_method :id, :product_id
  end
end