gistfile1.rb

# encoding: utf-8

require 'nokogiri'
require 'open-uri'
require 'pp'

base = 'http://www.ptt.cc'
url = 'http://www.ptt.cc/bbs/joke/index.html'
yesterday = Date.today - 1
stop_flag = false


topics = []

until stop_flag do
        res = open(url)
	doc = Nokogiri::HTML(res.read)
	prev_page = doc.search('h2 a')[1]['href']
	doc.search('div#prodlist tr').reverse.each do |tr|
		a = tr.search('td')[-1].children[0]
		like_count = tr.search('td')[2].content.to_i
		
		post_time = tr.search('td')[3].content.to_s.strip.split('/')
		post_time = Date.new(Date.today.year, post_time[0].to_i, post_time[1].to_i)

		title = a.content
		href = base + a['href']
		
		if yesterday < post_time then
			next
		elsif yesterday == post_time

			if like_count > 10 then
				#topic_content = Nokogiri::HTML(HTTParty.get(href).to_s.force_encoding('utf-8')).search('div#mainContent pre').to_s
				topic_content = "test"

				topics.push({
					:post_time => post_time,
					:title => title,
					:like_count => like_count,
					:href => href,
					:topic_content => topic_content
				})
			
				puts post_time.to_s+"\t"+title+"\t"+like_count.to_s+"\t"+href 
				#puts topic_content
			end
		else
			stop_flag = true
			break
		end

	end
	url = base + prev_page
end



require 'rss'
require 'time'
rss_content = RSS::Maker.make('2.0') do |maker| 
	maker.channel.author = "Honda"
	maker.channel.title = "Joke "+yesterday.to_s
	maker.channel.link = base
	maker.channel.updated = Time.now.to_s
	maker.channel.description = "desc"

	topics.each do |topic|
		item = maker.items.new_item
		item.title = "[${topic[:like_count]}]"+topic[:title]
		item.link = topic[:href]
		item.description = topic[:topic_content]
		item.date = Time.parse(topic[:post_time].to_s)
	end
end


#puts rss_content.encoding.name
#puts rss_content.to_s.encode("big5")
File.open('joke.rss', 'w') do |file|
	file.write(rss_content.to_s)
end