rakuten_order.rb

# -*- coding: utf-8 -*-
require 'mechanize'

class RakutenOrder
    def initialize
        @agent = WWW::Mechanize.new
        @agent.user_agent_alias = 'Windows IE 7'
    end

    def login id, password
        @agent = WWW::Mechanize.new
        @agent.user_agent_alias = 'Windows IE 7'
        page = @agent.get('https://grp02.id.rakuten.co.jp/rms/nid/login')
        page.forms[1].fields_with(:name => 'u').first.value = id
        page.forms[1].fields_with(:name => 'p').first.value = password
        page = page.forms[1].click_button
    end

    def get_items
        page = @agent.get 'https://order.my.rakuten.co.jp/'
        xpath = "//select[@name='display_span']/option/@value"
        years = page.search(xpath).map{|x| x.value.to_i }.select{|x| x != 0 }  
        
        years.reduce([]){|items, year| items + get_items_by(year)}
    end

    def get_items_by year
        page = @agent.get("https://order.my.rakuten.co.jp/?page=myorder&act=window&page_num=1&display_span=#{year.to_s}&display_month=all&search_item=&search_shop=&page=myorder&page_num=")
        parse page
    end

    def parse page
        link = page.links.select{|link| link.text =~ /次の\d+件/}.first
        to_items(page) + ((link) ? parse(link.click) : [])
    end

    def to_items page
        def date d
            ds = d.split(/\D/).map{|x| x.to_i}
            Date.new(*ds)
        end

        def money value
            value.gsub(/\D/,'').to_i
        end

        page.search('div.itemBlock').map do |item| 
            {
            name:item.at('.itemName').text,
            date:date(item.at('.day').text),
            value:money(item.search('dd')[1].text),
            shop:item.search('dd')[2].text,
            link:item.at('a @href').value,
            }
        end
    end

    def get_books
        def isbn13_to_10 isbn13
            isbn10 = isbn13[3..11]
            check_digit = 0
            isbn10.split(//).each_with_index do |chr, idx|
                check_digit += chr.to_i * (10 - idx)
            end
            
            check_digit = 11 - (check_digit % 11)
            check_digit = "X" if check_digit == 10 
            check_digit = 0 if check_digit == 11

            "#{isbn10}#{check_digit}"
        end
        items = get_items 
        items.select{|x| x[:shop] == '楽天ブックス'}.map{ |item|
            begin
                page = @agent.get(item[:link])
                xpath = '/html/body/div/div[2]/div/div/div/div/div/div[2]/ul/li/dl/dd'
                item[:isbn] = page.search(xpath).last.text
                sleep 1
            rescue
                puts "error item:#{item[:name]}"
            end
        }.select{|book| book[:isbn] =~ /\d+/}.map{|book|
            book[:isbn10] = isbn13_to_10(book[:isbn])
            book
        }
    end
end

end