Cacher is the code snippet organizer for pro developers

978-4488754013
4488722016
978-4122012714

# coding: utf-8

require 'rakuten_web_service'
require 'lisbn'
require 'open-uri'
require 'nokogiri'
require 'open_uri_redirections'

def get_detail(isbn)
  
  items = RakutenWebService::Books::Book.search(:isbn => isbn) # This returns Enumerable object
  items.first(10).each do |item|
    genre_result = nil
    genre_name = item.books_genre_id
    begin
      genre_id = item.books_genre_id.split('/')[0] # たまにこれが入っているものがある
      genre = RakutenWebService::Books::Genre.search(:booksGenreId => genre_id).first(1)[0]
      genre_level = genre['genreLevel'].to_i
      genre_name = genre_level > 2 ? genre['parents'][0]['booksGenreName'] : genre.name
    rescue RakutenWebService::NotFound => e
      STDERR.puts "Genre Id #{item.books_genre_id} is not found."
    rescue RakutenWebService::WrongParameter
      STDERR.puts "Genre Id #{item.books_genre_id} is wrong."
    end
    return {genre_name: genre_name, item: item, to_s: "#{genre_name}\tisbn:#{item.isbn}:detail:small\t#{item.title}, #{item.item_price} yen."}
  end
end

def get_unknown_isbn_detail(isbn_10_or_13)
  isbn10 = Lisbn.new(isbn_10_or_13).isbn10
  isbn_or_asin = "isbn";
  if isbn10 == nil then
    isbn10 = isbn_10_or_13
    isbn_or_asin = "asin"
  end

  url = "https://www.amazon.co.jp/dp/#{isbn10}"
  result = get_title_from url
  url = result unless !result
  return "unknown\t#{isbn_or_asin}:#{isbn_10_or_13}:detail:small\t#{url}"
end

def get_title_from(url)
  begin
    res = OpenURI.open_uri(url, :allow_redirections => :all)
  rescue OpenURI::HTTPError => e
    STDERR.puts "cannot reach #{url}. #{e}"
    return nil
  end
  code, message = res.status # res.status => ["200", "OK"]

  if code == '200'
    doc = Nokogiri::HTML.parse(res.read)
     return doc.title
  else
    STDERR.puts "cannot reach #{url}. code: #{code}"
    return nil
  end
end

RakutenWebService.configuration do |c|
  c.application_id = 'YOUR_APPLICATION_ID'
  c.affiliate_id = 'YOUR_AFFILIATE_ID'
end
isbns = ARGV
isbns
  .map { |isbn|
  isbn = isbn.chomp.gsub('-', '')
  isbn_obj = Lisbn.new(isbn)
  isbn_obj.valid? ? isbn_obj.isbn13 : isbn
}
  .map { |isbn|
  result = ""
  begin
    result = get_detail(isbn)
  rescue RakutenWebService::WrongParameter => e
  end
  [result, isbn]
}
  .sort {|a, b| a[0][:item].books_genre_id <=> b[0][:item].books_genre_id }
  .each { |item|
  if item[0] == nil || item[0].length == 0 then
    puts get_unknown_isbn_detail item[1]
    sleep 1
  else
    puts item[0][:to_s]
  end
}

GEM
  remote: https://rubygems.org/
  specs:
    faraday (0.9.2)
      multipart-post (>= 1.2, < 3)
    faraday_middleware (0.10.0)
      faraday (>= 0.7.4, < 0.10)
    lisbn (0.2.2)
      nokogiri
      nori (~> 2.0)
    mini_portile2 (2.0.0)
    multipart-post (2.0.0)
    nokogiri (1.6.7.2)
      mini_portile2 (~> 2.0.0.rc2)
    nori (2.6.0)
    open_uri_redirections (0.2.1)
    rakuten_web_service (0.6.3)
      faraday (~> 0.9.0)
      faraday_middleware

PLATFORMS
  ruby

DEPENDENCIES
  lisbn
  open_uri_redirections
  rakuten_web_service

BUNDLED WITH
   1.11.2

# A sample Gemfile
source "https://rubygems.org"

gem 'rakuten_web_service'
gem 'lisbn'
gem 'open_uri_redirections'

vendor/bundle
.bundle/config